What is a "Cell Phone Field Test Mode"? The Most Authoritative Explanation.

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What is a "Cell Phone Field Test Mode"? The Most Authoritative Explanation.

How to use field test mode on iPhone?

iPhone Field Test Mode. The iPhone has a hidden built-in Field Test Mode app. To access it, follow these steps: Go into Settings > WiFi and turn WiFi Off. This will enable you to see what network you're connected to (2G, 3G, 4G, LTE, etc).

How to check the strength of your cell signal on iPhone?

These simple rules are applicable both for iPhones and Android phones. If you use iPhone, you need to use you Field Test Mode once again as you have done while checking the strength of your cell signal. Using your keypad, dial *3001#12345#*.

How can I view other GSM and UMTS signals on iPhone?

The approach above was walked through on an iPhone X with the latest iOS 11.x or later release on AT&T with an LTE signal, but if you want to view other GSM or UMTS signals then you’d look for the appropriate selection within the Field Test Mode app on iPhone.

Is there a field test mode on the Huawei e5186?

A reader of this blog contacted me and wanted me to take a look at his Huawei E5186. During the meeting he showed the Field Test mode of his iPhone. I haven't done any iPhone hacks, and had never heard of such thing. In this mode you can see details of the cellular connection.


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