Touch screen doesn't always work - seems buggy

[Pianoman1976]

I have an unlocked jailbroken iPhone running v. 3.1.2. Lately I have noticed that the touch screen seems buggy. It doesn't work sometimes. I have to restart apps and sometimes reboot.

Is this a result of being a jailbroken/unlocked phone, or does this happen to regular iphone's too? Could it be winterboard, which I have installed but not in use? Maybe some other cydia app causing this?

Thank you.

[cpjr]

Its software, prolly needs to be restored.

[Pianoman1976]

What software? The OS, or cydia stuff. If the OS, this means I need to unlock and jailbreak again?

[Pianoman1976]

Nobody knows?

When I reinstall 3.1.2, do I need to somehow wipe/format the iPhone first?

[mitchell209]

First, back up your iPhone and transfer purchases.

Then restore to 3.1.2 and rejailbreak and unlock.

[Pianoman1976]

Thank you!

[Pianoman1976]

Do I need to remove my T-Mobile sim in order to do this? Do I need my original AT&T sim?

My phone has frozen after attempting to erase it. It's stuck on the apple logo. I can't do anything with it.