iPhone 4 screen goes blank after lock screen
My iPhones screen works perfectly on the lock screen but as soon as i enter the passcode it goes blank.
Its still fully functional in terms of recieving calls, vibrating, screenshotting etc. but what could i do to fix it.
I've already tried reseting the settings by holding the home and sleep button at the same time.
What else can I do?
iPhone 4, iOS 4.3.2