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Get All GSM Secret Codes old version APK for Android
To help every mobile phone user.
The GSM standard allows most of the functions to be controlled by entering codes into the keypad of a mobile phone: you can set diverts and the like, accept or reject calls, or even change your PIN code by typing at the keypad.
Unfortunately, not all the codes listed here are enabled by every network. If a code isn't supported, it simply won't work
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Last updated on Feb 25, 2019
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All GSM Secret Codes
1 by Droid Blaster
Feb 25, 2019