If you are an Android smartphone user, many times you have come across a message like 'Connection problem or invalid MMI Code' on dailing a USSD code.

So to solve the Connection Problem or Invalid MMI Code issue, let’s reboot in safe mode. To reboot in safe mode or enter safe mode, follow these steps: Turn off your device. Press and hold the ...

If you exploit the bug of the problem included in the code of "com.android.phone.PhoneGlobals $ Notification BroadcastReceiver.", The malware application will be able to make a call without ...