I realize I'm careless for letting my battery die so often, but I have trouble unlocking my phone if I:
I end up being unable to unlock the phone. If I press the power button or menu button, I am prompted with the message "Use keyguard switch to unlock screen and keys" But sliding the keyguard switch has no effect.
So, I am left with no recourse except to pull out the battery (thank God it's not an iPhone), but what can I do so the keyguard switch works when it's supposed to?
I am facing the same problem. Once I turn on the phone, the screen automatically locks by itself, and I am prompted to use the keyguard switch to unlock whenever I press the buttons or touch the screen. However, the keyguard doesn't work! It just doesn't unlock. As a result, I am unable to use the phone at all.Pulling out the battery and putting it back doesn't work either.
This happens all of a sudden. I don't even know what was the cause.
Have you found the solution yet?