My wife has an older T-Mobile Galaxy S2 (T989). She was having problems with the keyboard hanging and text messages lagging so rather then wipe it and restore the stock ROM I figured I might as well update it.
I used the latest release of CWM and rooted the phone with SU.
Then I flashed a new radio ( SGH-T989D_TLMC4_radio ).
Then I flashed Paranoid Android 4.0 beta 6.
Then I flashed mini gapps.
Everything on the phone seemed to be working great but then today at work she tried making phone calls.
The phone is able to dial and make calls and pickup and receive calls but the actual call quality is terrible. The voices are all broken up and have high pitched digital noise mixed in with the voice of the other caller.
Should I experiment with flashing different radios? I did a search and couldn't find much but I wasn't sure how to word the problem so it might be a common issue that I'm not aware of. Thanks!