What does this code mean * 3001#12345 #*? Just like Android phones, iPhones also come with secrete or special codes in the form of USSD codes that enable iPhone users to perform certain specific tasks with ease. iPhone, even though they have some strict policies about their devices, they allow for some of these codes to actually run on their Operating System.
What does this code mean * 3001#12345 #*?
This code is for iPhone users. The code allows the user to enter a text field on the iPhone. This allows the iPhone user to be able to test the various features of the iPhone.
To access your Field Test mode, go to your phone app on your iPhone. Dial the code *3001#12345# and hit the call button. Once you hit the call button, your iPhone will automatically enter the field test mode.
In this mode, you have the chance to view a piece of in-depth information about your iPhone’s cellular connections, your network signals, and other connection-based information. On earlier versions of the iPhone Operating Systems, the test mode could be used to turn the cellular signal bars into a numeric measure. Unfortunately, this is not something that works on modern iPhones.
There are a lot of other codes that allow you to perform different functions on your iPhones even recently.