How to grant MODIFY_PHONE_STATE permission for apps ran on Gingerbread

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The problem you’re having was introduced in Android 2.3 (Gingerbread). Any code you have that requires MODIFY_PHONE_STATE will work all the way up to (and including) Android 2.2, but will break for Android 2.3+.

A change was checked in by David Brown that limits the use of the MODIFY_PHONE_STATE permission to system apps. System apps are either

  1. Pre-installed into a system folder on the ROM
  2. Compiled by a manufacturer using their security certificate

I suspect you’re trying to use a hidden API like ITelephony. I was – and I got burned by this change. The Android team’s justification is that it was a hidden API that you shouldn’t have been using it in the first place.

That said, there was an enhancement request opened to create a proper public Telephony API, but Google killed the ticket. It appears their stance is that they do not intend to reverse direction and these APIs are not for public consumption.

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