there’s a secret testing menu hidden within the operating system where you can see detailed diagnostic information not available in your phone’s standard menus.
To access the hidden menu, open up the Dialer application and type the following code:
* # * # 4 6 3 6 # * # *
I dont own a HTC phone, so your guys out there who has a HTC, you can give it a try..
Thank you. :)
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