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When you look at your iPhone iPhone and iOS Apps Keep Crashing? Try These Fixes iPhone and iOS Apps Keep Crashing? Try These Fixes There are many things that can go wrong and cause your iPhone to crash, but thankfully there are a few things you can do when things go wrong. Read More and want to know how strong your signal is 5 Productive Things You Can Do With Your Smartphone Without a Signal 5 Productive Things You Can Do With Your Smartphone Without a Signal No signal? That doesn't mean you can't use your phone to get stuff done! Read More , you see bars. You’ll see somewhere between one and five bars — one being the weakest and five being the strongest. This is a pretty vague reading, and it doesn’t give you the strongest idea of how strong (or weak), the cellular signal actually is.

First, you’ll need to put your phone into field test mode. To do so, call the following phone number: *3001#12345#* and then — while in the field test menu — hold your phone until Slide to Power Off appears.

Don’t power off your device, though. Instead, hold down the Home button until your home screen pops back up. Now, the top-left corner of your screen will display numbers instead of bars. If you want to change back to bars, just tap the area where the numbers are.

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The numbers will range somewhere between -40 and -130, with lower numbers (actually higher, because we’re talking about negative numbers — -40 is closer to 0). The numbers on the far end of that spectrum are nearly impossible to get, as -40 is perfect, and -130 is zeno signal.

Generally, -80 is considered a strong signal (5 bars), and-110 is weak (1 bar).

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For me, I have signal booster 3 Ways You Can Improve Smartphone Reception 3 Ways You Can Improve Smartphone Reception Whenever I’m at my favourite pub (admittedly not often) or at my mother-in-law’s (sadly more often than I would like) I find that I have considerable trouble making a phone call. How can mobile phone... Read More through my carrier, which is why you see -64 in the screenshot above. When that’s off, I get about -110, hence the need for the enhancer.

What is the actual signal number of your iPhone in your home? Let us know in the comments!

Image Credit: sutham via ShutterStock

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