How To Replace The Nexus 4 Battery (It Can Be Done) [Android]

Kannon Yamada 17-06-2013

how to replace nexus 4 batteryGot a dead or worn-out Nexus 4 battery? Replacing the defective battery is dead-simple – simply crack your phone open, pry the old battery out and pop in a fresh one. However, unless you want a broken hunk of glass, take a little time to prepare and buy some cheap tools, before getting started.


What You Need

  • T5 Torx screwdriver
  • #0 Philips screwdriver
  • Replacement battery
  • Pry tool or guitar pick (or thumbnail)
  • Anti-static gloves or wristband (optional, but recommended)
  • Hairdryer (optional, but highly recommended)
  • Anti-static pad (optional)

how to replace nexus 4 battery

The total amount of this operation costs $30-40, including tools. It should take no more than an hour, if you’re super careful. In my case, it took about ten minutes to swap out my battery, although I have some experience in these matters.

Where and What to Buy

Battery: You can find OEM Nexus 4 batteries for ~$20 USD on eBay. I did not dissect the battery used in this guide, but it’s possibly a knock-off, rather than an OEM part. Another possibility: Batteries sold on eBay could be used pulls from broken systems.

The eBay seller listed it as brand new. Also, the date-of-manufacture showed it as a very recent build, so it might actually be an OEM component.

replace nexus 4 battery


Battery quality: Nexus 4 batteries are manufactured in three different countries: Japan, Korea and China. Generally speaking, batteries originating from Japan or Korea use more reliable sub-components, whereas Chinese batteries offer better value.

However, considering that LG manufactures its own batteries, I would hazard a guess that any LG battery is as good as the next, regardless of origin. Unless it’s a knock-off. Then you’re buying a potential bomb. Literally.

There was a subtle differences from my old battery, though, which suggested that it was indeed a knock-off. Notice how the screw holes on the connector are different sizes? Oftentimes knock-off manufacturers lack the same production tooling as OEMs, resulting in poorer quality components.

Guitar pick VS pry tool: Pry tools mostly suck. They’re built of flimsy, cheap plastic and generally are good for one or two jobs before they start breaking apart. A guitar pick, on the other hand, is designed for grinding against steel strings. In my experience, nothing beats a guitar pick for computer work.


replace nexus 4 battery

Anti-static mat: A grounded anti-static mat allows you to lay circuit boards down, without worrying about it getting shocked by electrostatic discharge (static electricity). In this case, you won’t really need one, but it’s better to be safe than sorry.

Anti-static bracelet: An anti-static wrist strap (AKA bracelet), again, is optional. I personally use it, but from what I can tell the vast majority of guys online don’t even bother anymore with precautionary measures.

Does it void the warranty?

Yup. However, LG can’t tell if an N4 has been opened, unless you somehow damage it (quite easy to do). If you somehow caused physical damage while opening your N4, then you’ve voided the warranty. Please, for the love of god, take the following precautions:

  • Keep careful track of your screws as you remove them. The Nexus 4 uses a variety of screw types and lengths. Fortunately, you will only encounter two when changing the battery.
  • Read the iFixit article on disassembling the N4. There’s a lot of detail lacking in this article, but the visuals are quite good.

Step One: Remove SIM card

This is the easiest part. Take out your SIM card removal tool. Insert it into the hole, next to the SIM card slot to eject the SIM card tray. Set the SIM card tray and SIM card apart somewhere safe.

replace nexus 4 battery

Step Two: Remove Faceplate Screws

Take your T5 Torx screwdriver and remove the two screws along the base of the phone. Set these aside and make note of where you received them from. Remember to not viciously slash your finger in the process.

replacing nexus 4 battery


Step Three: Pry Apart Your Device

You’ve now reached the second hardest part. Keep cool and be careful.

  • Take your pry tool and carefully insert it between the back-plate and the front of the phone, where the black plastic meets the silver bezel. The best place to first start prying is toward the base of the phone.

replacing nexus 4 battery

  • Wedge the pry tool between the black plastic and the silver bezel – then slide it first up the left and then right sides. Pay careful attention to the circles in red. Those are connecting latches. To disengage them, just wedge them out of place.


  • Next, on the right-side of the phone, slide the pry tool, detaching the clasps as you go.

replacing nexus 4 battery

  • Last, open the phone up slowly, starting at the base and moving to the top. If you feel strong resistance, keep using the pry tool until you separate the two halves entirely.

Step Four: Remove and Replace Your Battery

You’ve now reached the hardest part.

  • Blue anti-ESD tape: Remove the blue anti-electrostatic discharge tape holding the Wi-Fi cable in place and set it aside.


  • Remove screws: Remove the two screws holding the battery connector in place and set aside.


  • Remove battery connector: Use your pry tool to pop the battery connector off. It doesn’t take very much pressure, just slide it beneath the metal and wedge it out.


  • Now comes the hard part: The battery is glued into place using a very sticky adhesive. Try using a Flathead screwdriver covered by a thick rubber band to SLOWLY pry the battery out of its position. Covering the screw driver in a soft material, such as rubber, will prevent damage to your frame. Do not use a circuit board as leverage. Protip: If you use a hairdryer on the battery, the heat will loosen the adhesive. It will help if you can get someone to hold the hairdryer while you pry.

2013-06-07 11.02.12

Step Five: Reassembly

Reassembling it all is super easy.

  1. When you put the new battery in, first connect the ribbon and then place the battery in position. FYI: Pictured below, you may notice that I put thermal compound under the battery to better disperse heat into the frame. I have no clue if this will be effective.
  2. Replace blue anti-ESD tape.
  3. Replace the screws connecting the battery ribbon to the Nexus.
  4. Pop the rear cover onto the N4. Check all the way around to make certain it’s properly sealed.
  5. Replace the Torx screws at the base of the phone.
  6. Replace SIM card tray with SIM card.

how to replace nexus 4 battery


Despite the rumors, the Nexus 4’s battery replaces easily. It simply requires a few simple tools and a little bit of computer disassembly knowledge. Even an idiot who slashes his fingers every time he opens a computer can do it.

Anyone got a battery drained Nexus 4? You should really return it, if it’s under warranty. But if you’re no longer under warranty or out of the country, you may have to rely on yourself. In such an event, please exercise the greatest care, as potential for disaster abounds.

Related topics: Android Tablet, Battery Life, Google Nexus.

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  1. Greg Walton
    May 8, 2017 at 8:36 am

    I've just used this guide to change the batteries in two phones. No problems, really. The only thing I would point out is that when you remove the SIM you should NOT replace the SIM tray!

    As a guitarist I have no shortage of guitar picks/plectrums. I used a 0.88mm Jim Dunlop Tortex plectrum - worked perfectly well. Once you take the bottom screws out I found it easiest to prise open near the screw hole, get that corner open and then slide the long edge of the plectrum up one side, then across the bottom and up the other side.

    Releasing the battery I found worked OK using the plectrum, starting at the bottom right corner and sliding the plectrum underneath the battery. Just take it slowly - you can hear the glue releasing. I was a bit wary of the old battery after removing it - these things hold a lot of energy and are potential firebombs. Dispose of them through proper battery recycling banks.

    All in all not too difficult with a bit of patience and now have two phones which are at least as good as new in most ways

    • Kannon Y
      May 11, 2017 at 6:24 pm

      Thanks for sharing Greg!

  2. jim
    November 4, 2016 at 11:16 pm

    Can't get one side of the case to release. any ideas?

    • Kannon Yamada
      November 5, 2016 at 12:48 am

      In my experience, it's almost always a catch not properly releasing. Remember to never pry, but rather slide the tool. If the tool stops, that means you're near a tab/catch. If you can't get it open from one side, try sliding the tool along the tops or corners.

      • jim
        November 15, 2016 at 4:16 am

        I bought a very nice tool kit of Strongr to get the best I could find to operate on this phone. But as hard as i try I cannot get the SIM side of the phone to let a device get in. It's almost like it is glued on. I can get the opposite side to release but then I am stopped at the corner. This is frustrating. Is there a way I can just break it off without damaging the phone? I could always buy another back, i think.

        Thanks for you support.

        • Kannon Y
          November 15, 2016 at 4:09 pm

          Did you eject the SIM card? If the SIM card isn't ejected it will jam while trying to remove the housing.

        • jim
          November 16, 2016 at 1:17 am

          SIM card out.

    • Kannon Y
      November 16, 2016 at 3:16 am

      This is really bizarre. It might be a manufacturing defect. Is this a refurbished or used device?

      Normally, the problem most people experience is removing the motherboard. That's caused when the SIM card ejection lever gets trapped in the SIM card slot. But changing the battery shouldn't require removing the motherboard. There are some other methods you could try, like using a hair dryer in an attempt to loosen the catches. The differing expansion rates of metal and plastic could cause it to become dislodged. But it could also cause it to become further stuck.

  3. MInh
    June 29, 2016 at 8:09 pm

    I've managed to change the battery with the guide. However, my touch screen is now unresponsive. Can anyone offer an explanation as to how it could happen?

    I only took the battery out and touch nothing else that's important.

    • Kannon Yamada
      July 1, 2016 at 8:35 pm

      This is the second time I've heard about the digitizer going bad after a battery changeout.

      The most likely possibility is that the digitizer ribbon somehow came loose during changeout. It was probably installed improperly in the first place and the stress of prying up the battery may have dislodged it. Look very closely at the printed circuit board. You will notice that there are multiple ribbons connected to the mainboard. One of these has come loose or is completely detached. Make sure that these are fully connected.

      • Minh
        July 2, 2016 at 2:00 pm

        Thank you for replying.

        I didn't touch anything at all apart from the battery. I certainly didn't open up the plastic cover protecting all the connections for it wasn't dislodged or anything.

        Funny enough though, I took the battery out 2 more times and put it back it. The second time, i was really intrigued and just do a tap around the edge of the phone, and test the screen. Suddenly it was working again. There was no sound, no vibration, it just kind of work again. Very strange,

        It turned out to be a bad battery though, so I will have to get another one. So much for original battery from Amazon direct.

  4. Raymond
    April 13, 2016 at 9:03 am

    Cover removal - How I eventually managed:

    Once again I had immense difficulty with getting the spudger between the cover and "metal" strip on approach to each corner. Tried the guitar pick that came with my replacement battery but in the end through another bout of trial and error, I found the key was to get a smooth enough (metal) spudger that's able to SLIDE along.

    Yes, the edge is not quite new anymore (thanks to many slips with the supplied plastic guitar pick); but perhaps it's harder to remove covers from older Nexus 4 with worn-in plastic anyway. This is the second Nexus 4 I've managed so far.

    First time was also using the slide technique after much trial & error. Plastic spudgers on plastic probably has too much friction for difficult instances. If all else fails, focus on using the long and narrow rectangular shaped spudger (with no sharp corners) and get it to gradually SLIDE.

    • Kannon Yamada
      April 16, 2016 at 9:11 am

      Nice work!

  5. PJC
    January 10, 2016 at 11:06 pm

    The battery heated up dramatically on my Nexus 4 a couple days ago, turned into a giant bubble, and pushed out the rear glass cover, all without any warning; luckily it didn't break the glass. After searching around, I am under the impression that the glass cover may be attached with 3M double sided stick tape or similar. I am not going to buy that special as I need to get the phone operating as soon as possible. I am just going to use a couple of really small dabs of crazy glue at various points so it can be removed later if needed.

    Anyway, great write-up by the way...although I actually just watched the video and paused it at various points in the steps while I followed the instructions. To the person that mentioned that the guitar picks didn't work, I had "pick"ed up 3 different ones because I didn't want to drive back and get a different one, and only the thinnest one worked for opening the case. The thicker ones worked great to protect the phone while using a screwdriver to pry up the battery. Also, not sure it was the screwdrivers I bought or what, but the #0 Philips screwdriver was too large and I had to use the #00 one. Still waiting on my new battery; looks like sometime this week. Unfortunately in the US you can't buy the original battery from LG, and they require that you send it in for repair and will not even give you a price quote. So I said the heck with that and found this article and bought a battery off of Ebay that a couple people stated had worked well for them. There is a lot of bad reviews of the Ebay batteries, so it is a gamble.

    • Kannon Yamada
      January 11, 2016 at 5:12 pm

      I've read on iFixit that the Nexus 4's glass screen is bonded with the LCD screen. It should not be removable without also removing the LCD. I would guess that the rear cover is bonded using a similar process... Although the rear glass is not Gorilla Glass. It's something much cheaper, so perhaps it is removable?

      • PJC
        January 11, 2016 at 7:17 pm

        I bought some contact cement today to re-attach the glass to the plastic frame. Not sure what to do about the battery. Maybe contact cement or double sided tape. I imagine you don't want it rattling around inside the phone; that flexible circuit board on the back cover looks pretty fragile.

        • PJC
          January 13, 2016 at 1:50 pm

          OK, my battery is installed and everything is running good. Contact cement did the trick. One gotcha while reinstalling the back cover. There are small rectangular pins on the back cover that seat into slots on front cover. One of them did not seat and left a bulge, so I had to take the cover off and this time, starting at the top of the phone I tilted the rear cover to insure that the first pin seated properly (that is the one that gave me problems), and then everything else went smoothly.

  6. oseipee
    January 8, 2016 at 8:15 pm

    i changed may battery,but now when i try charging it blinks deep orange @ the notification light,it cant switced on and it cant charge.whwats the meaning of the oraange light blinking

    • Kannon Yamada
      January 8, 2016 at 9:25 pm

      Is the battery deep discharged or something? Sometimes charging it overnight fixes phones that have been deep discharged. Alternatively, you can try putting the old battery in to see if it works. If it does, then the new battery is probably the cause.

  7. Anonymous
    November 3, 2015 at 7:45 pm

    I was able to replace my battery by following this guide. Thanks a lot!

  8. Anonymous
    October 21, 2015 at 12:38 pm

    Hi Kannon, congratulations for your post. I replaced my N4 battery with a LG original one (or at least I hope it was original) bought on eBay. After the procedure the phone worked well, the battery was at 40% and the phone had some trouble to show the real percentage of charge. I though it was something I would have solved with a simple battery recalibration. Before I went to bed I plugged the N4 to the charger and turned it off. The day after it was at th same battery percent the night before. Now I have this problem: N4 is not turned on, when I plug the charger a red led lights for one or two times, then the charging symbol appears on the display as if it's charging. But it's not. Even after several hours it doesn't charge. When I try to turn it on, the N4 starts but then turns off because of low battery.
    Do you think is just a battery problem? The new one was not good? Tonight I'll install the old battery hoping it solve the problem.

    Thank you for any suggests.

    • Kannon Yamada
      October 21, 2015 at 12:57 pm

      Sorry for your troubles Vittorio. I want to say that the problem is related to the battery. Perhaps it is dead. This happens when someone leaves a deep discharged li-ion battery around for too long. It can also perhaps be related to the charging mechanism, specifically the charger. If you're not using a charger or cable rated for the amperage of the N4, it won't charge.

      My recommendation is to try other power sources and cables. The thicker the cable, the better (in general). If possible, please try using a wall adapter with a different cable. If that fails, try connecting it to a computer, with a different cable.

      Let me know if that helps. I have some other ideas.

      • Anonymous
        October 21, 2015 at 1:35 pm

        Thank you Kannon. You're very kind to answer so fast. I didn't mention that I've been using the original N4 charger with the original cable. And I've already tryed another charger with more output. But it won't charge. It's always the same red led and charging icon, but no real charge.... I think you're right and the problem is on the new battery. I'll write you if i solve the problem replacing the new battery with the old one (that i decided to replace just because it didn't last as in the past).
        But if you have other ideas..... let me know.
        Thank you again

        • Kannon Yamada
          October 21, 2015 at 2:08 pm

          I was thinking that the battery stats might be off, but that's probably wrong. Sometimes it can take a while for the battery to begin charging again. Maybe a little more time? Just be careful that the battery isn't bulging. Good luck!

        • Anonymous
          October 22, 2015 at 1:50 pm

          Hi there. I replaced the new battery with the old one and it charges regularly. The new battery it's damaged and I'll return it. Thank you for the support.

  9. Anonymous
    October 20, 2015 at 3:42 am

    Excellent article, Kannon! Very clear, and included important information tidbits at all the key points. Allowed me to do a quick battery replacement in my N4 in 20 minutes -- 15 of which were spent trying to pry the rear case off. :-) Thank you for posting this article!

    (FYI, I purchased three guitar picks for the job -- but none of them was suitable for removing the rear case. I ended up using a very small flat-blade screwdriver with a (relatively) wide, thin blade -- and a LOT of care to ensure I didn't damage the case. Worked great.)

    • Kannon Yamada
      October 20, 2015 at 12:52 pm

      Thank you for the compliment! Unfortunately, I failed to explain how to use the guitar pick. It's not a prying action, but rather a sliding action. Simply sliding the pick between the points where there's connection should do it. Prying with a screwdriver can be dangerous, although given the amount of care you described, it should be perfectly safe. Thanks for sharing!

  10. Anonymous
    October 2, 2015 at 11:51 am

    My phone doesn't store a long charge and it does charge pretty quickly in about an hour or so, but while comparing to my OH phone with a similar sized battery the current draw when charging is greater on mine, so I'm not exactly sure I need a battery and I can not test it without opening the phone anyway.

    Did it make a difference to you?

  11. Anonymous
    September 13, 2015 at 4:46 am

    Thanks for the great instruction! I'm wondering do you have a particular place/seller I can buy a N4 battery from... do you know a way I can identify which one is selling the Japan/Korea made instead of the China made battery? I just don't want my phone to explode and overwhelmed by all the listing on ebay selling the battery that all have the same picture. Thanks!!!

    • Kannon Yamada
      September 15, 2015 at 5:59 pm

      I believe eTradeSupply is a legitimate supplier of smartphone parts. I see a lot of forums linking to them for legit parts:

      I've never used them (always use eBay or Amazon), so I can't comment on how reliable they are.

  12. Anonymous
    August 30, 2015 at 1:06 am

    I have broken the black thing where you put the battery connector of the battery. It's used to connect the electrode to the PCB...what can I do? Do I need a micro soldering tool to attach it again to the pcb?

    • Kannon Yamada
      August 30, 2015 at 2:16 am

      Francesco, that's terrible. Is it the plastic connector or did you tear something out of the PCB? If it came out of the PCB, those solder points are so fine that it's almost impossible to resolder. There's some videos on how to make really fine solder welds, but it looks tough:

      • Anonymous
        August 31, 2015 at 8:03 am

        It's the plastic connector, but 2 out of 4 copper track has been removed when the plastic connector was removed.
        I don't have instrumentation for micro soldering but without copper con the PCB, I can't do anything with or without instrumentation...may be the only thing I can do is LG assistance...or Nexus 5 2015 :)

        • Kannon Yamada
          August 31, 2015 at 3:11 pm

          That's going to be really tough to resolve. You may want to consider selling the phone on eBay for parts and using the money toward a new phone. I recommend the Moto G or OnePlus One over the Nexus 5. In truth, the N5 is a great device, but it is not all that big of an upgrade over the Nexus 4, and it costs more. Whereas the Moto G and OnePlus One (not the OnePlus Two) are cheaper and about the same, although they're both much harder to work on than the N5 or N4.

          Can I ask how the connectors broke off?

        • Anonymous
          September 2, 2015 at 10:04 am

          When I was removing the old battery connector, the plastic connector went off together...
          However you've said a lot of thing in the last post that are not true

          1) Snapdragon 800has a huge performance improvement over S4 inside Nexus 4
          2) Moto G, with only 1GB of RAM, should be avoided by all people that use phone not only for whatsapp and facebook
          3) I was thinking about N5 2015 that should be released at the end of this month, that it's not a big update over N5 2013, but a lot over N4...obviously I'll buy it only if it will cost 349€/$, not 650 like N6
          4) 1+1 is not a bad idea :)

        • Mihir Patkar
          September 2, 2015 at 10:22 am

          The Moto G is awesome!

        • Anonymous
          September 2, 2015 at 4:22 pm

          Indeed, 2 years ago it was my present for my girlfriend and it's still good...because she uses 3 app, nothing more...some freeze once in a while, but I think the reason is that it was not formatted after lollipop upgrade

        • Kannon Yamada
          September 2, 2015 at 5:21 pm

          There is a tangible difference in performance, but in terms of what's out there, there's not much difference. The perception that there's a huge leap between SD800 and S4 Pro is mostly advertising and poor software design.

          There's not a big difference between single generations of SoC using the same architecture and production process. S4 Pro and SD800 use Krait and have the same nanometer production process. I think SD800 leverages Qualcomm's Hexagon DSPs and has a fifth sleeper core, but otherwise isn't very impressive.

          My N5 was much smoother than my N4, for some reason. But I think that may have to do with the software, rather than the hardware. Lollipop was very poorly designed and caused a lot of problems with the N4, in particular.

          Regarding the N6: It was definitely not worth $650. It was also buggy and kind of poorly designed. The Moto X on the other hand (best phone I've ever had) got a refresh recently. I don't know if it's worth buying, but the early reports sound really good. And the price is really good, too.

          RAM: If you need the RAM, then you're a really heavy user/multitasker. Asus is releasing a (supposedly) well priced phone with 3GB for the higher end model and 2GB for the lower end. Asus Pegasus 2 Plus.

  13. Anonymous
    June 25, 2015 at 7:36 pm

    Thank you for this how-to! The guitar pick advice was really valuable, I changed my battery in only a few minutes.

  14. Kannon Y
    May 17, 2015 at 2:13 am

    Passwords are stored in two places: They are stored in the system directory of the phone and they are also transferred to Google's servers, if you have this option enabled. This mod should not impact those passwords in the slightest.

    It might be that the Nexus 4 is having difficulties connecting to the networks in question. It's been reported that metal shims can interfere with the GPS and wireless capabilities.

    I do not think that is the case in your situation though. A factory reset (if you're unmodified = no custom ROM) might be the most simple solution. Unfortunately, that requires installing all your apps again/logging in/ etc...

    Can you relate any other details?

  15. Nigel
    May 11, 2015 at 7:07 pm

    Since changing the battery I have found that my Nexus 4 does not remember any of the Wifi passwords that it had before. This is strange. It seems that the passwords are not kept in the same non-volatile memory as the rest of the stuff, like apps, that are held on the phone.

    Has anyone else noticed this?

    Does anyone have a better explanation?

  16. Nigel Dodd
    May 8, 2015 at 10:59 am

    Absolutely right. Perhaps I did not make it clear that the observation of the bloated battery was made while following your instructions to replace it with a new one.

    I am now marvelling that it has only lost 10% of its charge since early this morning and it is nearly lunch time.

  17. Nigel Dodd
    May 7, 2015 at 4:21 pm

    Thanks for the clear instructions, especially regarding the glue.

    My old battery looks distorted as if it really cooked. The phone does get hot sometimes. I notice it when it is doing satnav.

    I have also had to replace the glass back three times. Now I just have some wide transparent tape to hold the shattered pieces together.

    In order to protect the glass back I have been using a rubber surround that protects the back and sides and I wonder if the low thermal conductivity of rubber has helped to cook the battery.

    Incidentally I can think of no less suitable material to make the back from than untoughened glass.

    • Kannon Y
      May 7, 2015 at 7:25 pm

      Nigel, thanks for the kind words.

      I would be very wary of using a battery which has suffered from distortion or warping. If it looks like the battery has expanded in any way, it's imperative that you replace it. An expanding battery could eventually explode.

  18. Alex Ch.
    April 8, 2015 at 1:13 am

    Hi, is there any chance to upgrade/add more storage space?

    • Kannon Y
      April 8, 2015 at 2:44 am

      Hi Alex, no, it's not possible. The only option is to use a wireless hub or an OTG memory card. Kingston makes a $9 16GB-32GB microUSB OTG flash card though. That's like a flash memory card for your smartphone.

  19. Anisha
    March 22, 2015 at 2:06 pm

    Yeah!! Its LG Service center. I have got the battery replaced but i did not see any swelled part in it. It was just not charging the phone and was not able to switch it ON. Thanks for your kind suggestion :)

  20. Anisha
    March 20, 2015 at 12:34 pm

    Hi Kannon,

    My Nexus 4 battery is not working fine and getting swelled. I have spoken to a service center. They said,they have replacement and they can change it. Do you have any idea that if I will get it replaced, it will work nicely for how many days? What is the guarantee time of new battery? It is costing me 1000 Rs. So, I should go for it or not?

    Thanks& Regards,

    • Kannon Y
      March 21, 2015 at 6:50 pm

      You should immediately discontinue use of the phone. A swelled battery can explode or cause fires. It doesn't take very long to change the battery. The amount of time that they take until you get it back depends entirely on the service center.

      For the price, that's a great deal. In the US , the battery alone costs more than that. I would go for it, if the technicians are from an official LG service center.

  21. Graham
    February 6, 2015 at 12:03 pm

    Thanks for a great article, replaced the battery in my Nexus 4 today and your guide was VERY VERY helpful


  22. Nathan
    December 4, 2013 at 8:35 pm

    Did YOU viciously slash your finger in the process of removing the screws? (I'm referring to the big plaster on your finger.)

    • Kannon Y
      December 4, 2013 at 9:56 pm

      :-) I'm always cutting myself with something. It's been a while since I wrote this article, but if I remember correctly, I cut my finger on a sharp handle of a very cheap screwdriver.

  23. John
    November 28, 2013 at 9:02 pm

    Hi Kannon,

    I accidentally stripped one of the external screws and the rubber band trick doesn't seem to be working. Any tips? Thanks!

    • Kannon Y
      November 28, 2013 at 11:41 pm

      This can potentially turn into a disastrous situation. After stripping a screw, a variety of methods can loosen it. But double-check to make sure that you are turning the screw the proper way. Most of the time a screw gets stripped is from using too much force, turning the wrong way and using the wrong sized screw driver.

      I would suggest double-checking your methods - righty-tighty, lefty-loosey. Picture a clock with the hands at 12:00. To turn right from this is to tighten. To turn left from this is to loosen. I'm sure you already know this, but in this kind of situation, all precaution must be used.

      Because the Nexus 4 battery screws aren't flush, you can get under it with a variety of tools. A good quality needle-nose pliers will do this. Also, believe it or not, holding a pair of wire-cutters horizontally (NOT vertically) can loosen a stripped screw. Remember to use just enough pressure to loosen it, and then use the rubber band + screw driver after that.

      But you must use absolute care in doing so. The screw housing connecting this particular part of the Nexus is somewhat weak and if you use too much pressure, it can break, potentially destroying the phone.

      I found a link (the advise is not so-good) on removing a stripped screw here:

      Some of it isn't so well suited for electronics, but if all else fails, this can give you some pointers.

      Good luck!

  24. AB
    October 25, 2013 at 8:56 pm

    I was just curious about why my battery was getting drained faster than most people with a nexus 4 so I opened it. Now I dont know why my phone doesnt boot anymore and only the Red LED blicks.

    • Kannon Y
      October 25, 2013 at 9:02 pm

      I suggest using the standard safety precautions, including anti-static wrist bracelet and pad. But most people don't bother with those nowadays.

      Even so, causing an ESD on your mainboard is a relatively rare event, particularly considering that removing the battery doesn't expose any circuit boards.

      I imagine that the device has been put back together improperly. You want to make sure that EVERYTHING is connected. Oftentimes these sorts of issues are fixed by METICULOUSLY observing protocol and the steps involved in dissassembly.

      Did you remove the black plastic shield? If you did, there's some very important points that you need to observe in resassembly.

    • AB
      October 26, 2013 at 4:30 am

      Hey Kannon,
      Thank you for your help. I did follow everything closely. I just kept it on charge for an hour and the red LED stopped blinking and the device turned on.

  25. Anders
    September 30, 2013 at 9:38 am

    I wonder why there are so few vendors to buy the battery from?

  26. Anders
    September 30, 2013 at 9:29 am

    Awesome video, the guy knows what he is talking about and talking about he dose so well.

  27. amulya
    September 22, 2013 at 5:35 am

    What should I do if I stripped the screw on the battery connector? HELP! (sorry im a noob)

    • Kannon Y
      September 22, 2013 at 6:08 am

      Oh no! How badly did you strip it? Just to be clear, stripping a screw means destroying the indentation where you place the screwdriver.

      For stripped screws I place a rubber band over the stripped screw and then use the phillips screwdriver as usual. The rubber will provide extra grip and will fill in the missing indentation. Be careful not to overtighten or apply too much pressure. That particular part of the board is delicate.

      Make sure that you turn COUNTER CLOCKWISE to loosen and clockwise to tighten. A good way to remember this is lefty-loosey, righty-tighty.

      Another option, and I DON'T recommend this option, is to use a pliers on the top of the screw. I use this as an absolute last resort.

      If you have any questions please, please ask. I've done this many, many times.

      Good luck!

    • Kannon Y
      September 22, 2013 at 6:10 am

      I need to point out that the only tip in the video that I sent you worth using is the rubber band one. I've used this method many times and it works almost always. Rubber bands are amazing things.

  28. Madhav
    September 14, 2013 at 9:33 am

    Will some person from the local electronic repair shop be able to do it?

    • Kannon Y
      September 16, 2013 at 7:40 am

      It depends on the technician. Some might feel confident enough to do it. Others might not.

      If the phone is covered under warranty you can just have it replaced through an LG repair shop.

  29. Tim M
    September 2, 2013 at 9:40 am

    really great video, very clear.
    I'm interested in adding an external aerial to this phone for getting 3g coverage in a marginal area. Any help as to where to best connect it?
    Cheers from Devon!

    • Kannon Y
      September 2, 2013 at 9:58 pm


      Unfortunately, that may be impossible from what I can tell. The data chip uses an internal antenna. I don't think it's possible to desolder the data chip from the antenna and attach it to an external, although I suppose anything is possible.

      I know there's a spare antenna port, but I'm about 90% certain that's for WiFi. It's located next to the WiFi port to the right of the battery.

    • Kannon Y
      September 2, 2013 at 10:05 pm

      I may have misread your comment. Sorry about that.

      I checked around, and many of the antennas require an adapter kit or cradle.

      That's just an example, but basically, the antenna attaches to the cradle or adapter and the adapter somehow interfaces with the phone, perhaps through software.

      I hope that helps! Thanks for the comment!

  30. Bobby
    August 31, 2013 at 6:29 am


    A very informative article. Excellent observations in the comments and responses. Thanks for taking the time to put this together. I wanted to know if you have tried replacing an original Nexus 4 battery with another one of higher capacity? Any particular brand\website\type that you would recommend based on your past experience. It would also be great if you could extend the current article and include instructions on putting the Grafoil and thermal compound inside the Nexus 4.


    • Kannon Y
      September 3, 2013 at 8:41 pm

      Hey Bobby, thanks for the comment!

      The Grafoil isn't clearly labeled - it's the silver stuff next to the copper shim. Because of its thickness (.75mm instead of .6 or .5mm), Troun2000 doesn't suggest using thermal compound with it. I've used compound with it, and it actually does slightly improve the temperatures.

      You just need a tiny (the size of a grain of rice) dab on each side.

      When I get a spare moment, I'll try to demonstrate why less is better. More can actually cause some harm. Thanks again!

  31. Eric
    August 18, 2013 at 8:41 pm

    Hi, Great DIY guide!

    Just wondering - when removing the factory battery, it was originally glued into place at the back of the battery right? So when we replace the battery do we have to re-apply any form of adhesive? If not, will it make much difference? It does seem to look really snug in there as it is...just wondering if the adhesive prevents the battery from shifting ever so slightly during operation.

    • Kannon Yamada
      August 18, 2013 at 9:37 pm

      That's a good question - the adhesive is sorta like really powerful double-sided tape. It will stay sticky, even after you detach the battery, so you won't need to replace it.

      Also it won't make a difference when you remove the battery. It will lose some of its stickiness, but that won't matter really much at all. There's not really a lot of room for the battery to move about anyway.

      Thanks for the comment!

  32. Ben
    August 13, 2013 at 1:30 pm

    Superb instructions... only thing I would add would be that when you are removing the battery, a good place to start would be the top left corner (I was able to do this with my finger)

    • Kannon Yamada
      August 13, 2013 at 6:20 pm

      Very good comment!

      That's a good place to start. I would point out though that the temperature sensor and other electronic components are located at the top of the battery. It seems to be able to take a tremendous amount of abuse, though. I've seen people wedging the battery out entirely through the top portion.

      I prefer starting on the left side, and using the top as a secondary grip. Overall, though, I think what you're doing is also highly effective.

      Just recently I tried using a plastic putty knife, which distributes weight evenly among the battery. It was thin and rigid enough to wedge the battery out easily, but not so soft that it folded up.

      Thanks for the comment!

  33. Adam
    July 24, 2013 at 2:17 pm

    So have you noticed any differences in battery temp since changing it out and adding thermal compound? I'm curious if that worked since the high battery temp is one of the few things I don't really care for on the N4.

    • Kannon Y
      July 24, 2013 at 7:31 pm

      This is actually a personal quest of mine!

      OK, here's the deal: There's a production flaw in the Nexus 4 - the CPU/RAM stack of the N4 isn't properly attached to the metal frame. Basically, it overheats because there's a .5mm gap of air that prevents efficient transfer of heat.

      There's a thread over at XDA regrading this matter:

      In addition to adding thermal compound to the N4, I also undervolted it and then anchored the CPU to the metal frame using a special graphite foil shim, called Grafoil.

      After performing both, the phone no longer overheats even under max load.

      However, this totally voids your warranty. And disassembling a mobile device, while easy, requires an understanding of basic electronic safety methods.

      If you have any questions on the process, let me know. I've gone over it dozens of times.

  34. mauso
    July 23, 2013 at 2:53 pm

    Very good DIY. I appreciated it.

  35. mauso
    July 23, 2013 at 2:51 pm

    Very good review. I appreciated it.

  36. Patrick Wolf
    July 6, 2013 at 7:53 pm

    Awesome Article!