iPhone Won’t Turn On? Here’s What to Do Next
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Many iPhone problems can result in an unresponsive device. The good news is that many of these problems can be solved without having to pay for repairs or a replacement.

The key to solving the riddle is diagnosing exactly what’s wrong. So let’s take a look at why your iPhone won’t turn on and what you can do about it.

Is It Hot?

Symptoms: Heat, obviously. You might also see a message displayed on your screen, but not always.

If you’ve ever left your iPhone in the sun iPhone or iPad Getting Hot? Here’s Why & How To Fix It iPhone or iPad Getting Hot? Here’s Why & How To Fix It There are a few different reasons your iOS device might get hot. Here's what you can do about it, and when you should start to worry. Read More on a hot day, then you may have experienced this before. Your device is designed to shut down when it gets too hot, suspending everything but the emergency call feature. Sometimes the device is completely unresponsive, with nothing on the screen at all.

diagnose iphone won't turn on

Let your iPhone cool down in a dry, cool place out of the sun. Never try to cool your iPhone down too quickly by putting it in the freezer or in front of an air conditioner, since this can cause condensation to form which will damage the device.

Is the Battery Dead?

Symptoms: You’ll usually see the “insert lightning cable” message pop up when you try to turn it on, though not always.

This might sound like the most obvious choice when your iPhone won’t turn on, but in the interest of safety, it’s better to eliminate excessive heat as the cause before trying to charge your iPhone.

diagnose iphone won't turn on

When you plug in a charger, you should see the “battery empty” graphic remain, while the arrow telling you to insert a lightning cable disappears. Sometimes it can take (what seems like) a long time for an iPhone to come back to life, sometimes it’s instantaneous.

Is It the Charger?

Symptoms: You might see the “insert lightning cable” message pop up, even after you have plugged it in.

Cables are not to be trusted, and that’s why you should always try a couple when you encounter charging problems. Don’t overlook wall chargers either, since they have a tendency to fail too. Make sure you’re using a high-quality and safe Lightning cable The 6 Best Lightning Cables to Charge Your iPhone or iPad The 6 Best Lightning Cables to Charge Your iPhone or iPad Looking for the best Lightning cables for your iPhone or iPad? Check out these options that blow Apple's out of the water. Read More without frays or damage.

diagnose iphone won't turn on

If your cable is damaged, you should probably throw it away When to Throw Away Your Fraying Cables & Phone Chargers When to Throw Away Your Fraying Cables & Phone Chargers Let's cut to the chase here — in a benevolent ploy we only really want you to read this article for one reason: to throw away those shredded, damaged chargers NOW. Read More . If you’re thrifty, you can save your cables How to Prevent or Fix Frayed iPhone Lightning Cable Once and For All How to Prevent or Fix Frayed iPhone Lightning Cable Once and For All Make your Lightning cables more durable or fix a wire that’s already frayed without having to buy a new one. Read More before too much damage is done.

Does It Hang During Boot?

Symptoms: An Apple logo on-screen, possibly with a stuck progress bar.

Boot problems can often be symptomatic of bigger problems, but there are a few things you can try. The first thing to do is reset your phone, which can differ based on which model of iPhone you’re using. Not sure how? Check out this Apple Support document.

If your iPhone hung during an iOS upgrade, it’s still worth trying a reset. The installation can repair itself and complete without issue on a second attempt. If this doesn’t work, it’s time to give iTunes a shot.

diagnose iphone won't turn on

Plug your iPhone into a Mac or PC running the latest version of iTunes. If iTunes recognises your iPhone, now might be a good time to make a backup: select your device, then on the Summary tab, click Back Up Now. Once the backup completes, try updating your phone’s software by clicking Update.

diagnose iphone won't turn on

If you’re already using the latest version of iOS, hit Restore to reinstall it. You’ll be able to restore the backup you made once the procedure is complete.

iTunes won’t recognize your iPhone? It’s time to enter Recovery mode How to Force Restart an iPhone and Enter Recovery Mode How to Force Restart an iPhone and Enter Recovery Mode If your iPhone is frozen, you need to reset it. When your iPhone won't boot, recovery mode can help. Here's how to use both of these features. Read More . Once you’ve done that, iTunes should recognise your iPhone and let you hit Restore to reinstall iOS, but you will lose anything you don’t have backed up!

Did You Damage It?

Symptoms: Flickering screens, cracked display, other obvious signs of damage.

If you recently damaged your iPhone and it won’t turn on, you may have killed it. This can include dropping it, getting it wet (or exceeding the water resistance), leaving it in a very hot or very cold environment for a long time, or letting your dog chew on it.

diagnose iphone won't turn on

Repairs depend on the damage done. Water and static electricity can cause severe damage that usually requires a new phone. Broken screens can be replaced, but a device that won’t power on generally indicates there’s a problem with more than the display.

Is It Completely Dead?

Symptoms: Nothing, generally.

Did you throw an old iPhone in a drawer and now it won’t even charge? Devices that have been without power for some time can take up to 20 minutes to come back to life. Plug it in, make a coffee, drink the coffee, then check on it. If nothing happens at all, it might be time to visit a repair center.

Still nothing? Power problems can be linked to dud batteries, which is a relatively easy fix in the grand scheme of iPhone problems. You can pay Apple to do it (or use your warranty or AppleCare plan AppleCare Warranty: What Are Your Options and Is It Worth It? AppleCare Warranty: What Are Your Options and Is It Worth It? AppleCare+ protects your Apple device, but is it worth the cost? Here's what AppleCare+ offers and whether you should get it. Read More if you have one) or get it done for cheaper at a service center of your choosing. You could do it yourself How to Fix an iPhone Yourself How to Fix an iPhone Yourself Over a few weeks, the angle I needed to plug the lightning cable into my iPhone 5S got more and more specific, until one day it just wouldn't charge. It was dead. Read More , if you’re confident doing so!

Unfortunately you won’t know if it’s a simple battery problem until you replace it, and there’s always a chance that your efforts will be for nothing. Even if you’re getting work done at a service center, more extensive damage may not be worth it considering the price of a new device.

Raising the Dead

Any good repair center will be able to give you an idea about whether repairs are feasible when your iPhone won’t turn on. They’ll also tell you the cost before the work is carried out. Before you shell out a lot of money, consider the price of a replacement device and don’t forget to offset the money you can make from recycling your old one How to Sell Your Old iPhone for the Best Price How to Sell Your Old iPhone for the Best Price Don't fancy an expensive contract to get your hands on a new iPhone? Then why not sell your old model to sweeten the deal? Read More .

Did your iPhone come back to life? Did we miss anything? Let us know in the comments below.

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  1. StevenS
    October 7, 2018 at 1:33 pm

    Thanks you so much your helpful advice. But ReocveryTool Fix Recovery can solve this problem easily.

  2. Alen Cooper
    February 3, 2018 at 9:56 am

    when my iPhone black screen tunrned black, i was really frustrated. I found a free tool ReiBoot, enter iPhone into recovery mode and then exit, which fixed the problem.