The iPhone has a hidden “field test” mode that shows all kinds of technical details about signal strength, cell towers, and more. Most of it is not very useful to the average person, but you can make it show you your phone’s actual signal strength instead of just how many bars you’re getting. And that can be useful.
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by Walter Glenn via How-To Geek
How to Access Your iPhone’s Field Test Mode (and See Your Real Signal Strength)
![How to Access Your iPhone’s Field Test Mode (and See Your Real Signal Strength)]()
Reviewed by Ossama Hashim
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April 29, 2016
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