I have a GT-I9000M from bell and I just recently upgrading to froyo(jk4) through kies. My phone has never been rooted/lag-fixed, unlocked and flashed before. After upgrading to froyo I have a problem with the back button being "stuck".
This does not happen all the time but occasionally at random it does and is very annoying since I am used to pressing the back button instead of the home button.
Here are the symptoms:
When I press the back button, it would appear to be stuck. The light for the back button is off(and i can't press it anymore), menu key is still light up. I can't press the menu key, I can press the home button but that just takes a screenshot because of the back key still stuck. Another thing is when I press the power button ONCE, the screen closes and then immediately turns back on.
The only way to make it "unstuck" is to press the power button since it "shuts" off the touch buttons. Even then when once I press the back button again it will get stuck. The back button will start working properly after some time randomly. I cannot relate this problem to any specific applications or actions I do. It seems to happen randomly.
I've done a factory reset before I upgraded. Did an additional two factory resets after the upgrade because of this problem and formatted my sd but the problem still persists.
What can I do to fix this problem if can be?
EDIT: Thanks to BlackDino for the solution!
Ok, goto your dialer and type the following:
Then click Touch key FW update.
Let me know if this fixes the issue for you too,
I had the same issue and after doing this I haven't seen the problem in a number of days.
This may or may not work, I have found this menu on my own and don't know if it will solve anything