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Touchscreen doesn’t respond to pressing buttons
Digitizer Connection Problem
The connection from the touch screen digitizer to the motherboard may be loose or dirty and needs to be reset.
Phone loops the same song
The phone never stops playing the same portion of one song
If the song proceeds to loop, and there are no outward physical damage, there may be an issue with the batteries.
Device Has Water Damage
The device has been exposed to water either through spilling or drool. If this is the case, the phone is severely damaged and beyond repair.
Phone won’t turn on
Switching the power switch does nothing
If the phone will not turn on, and the power switch moves freely, you may want to replace the batteries.
Assuming the batteries are working, then you may have an issue with the switch. If the switch won’t move back and forth, then it may have been damaged, and needs to be replaced.
Screen contact problems
If the batteries and the switch are working normally, then you may have issues with the contact points of the phone's screen digitizer. Assuming this is the issue, you will need to refer to the guide on replacing touchscreen contact points.
Phone turns itself on
The phone turns on without touching the power button
Misaligned Power Switch
If the power switch seems loose or won’t move back and forth, you may need to realign the switch.
Water Damage to Power Switch
If the switch seems to be working, and the phone remains on, then you may have had water (or drool) damage to the device. This may be fixed by replacing the power switch.
Misaligned Swipe Screen
The background screen may come in the package misaligned or it may become misaligned
Black or White Screen Visible
If the screen displays white or black when toggled all the way to the left or right you may need to realign the screen.