How to enter hidden menu in HUAWEI Ascend Mate 7? Tips and Tricks in HUAWEI Ascend Mate 7 . How to open secret menu in HUAWEI Ascend Mate 7?
These publicly available backchannels allow users to directly communicate with their service provider's computers and/or access back-end features in their device. They are accessed by inputting them into the phone's dialer (the screen you use to start a phone call) and usually begin and end with the * or # keys with a sequence of numbers in between (there's close-to-zero chance that anyone would accidentally access them).
More info:
http://www.hardreset.info/devices/huawei/huawei-ascend-mate-7/
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