Touch Screen; Touch Screen Malfunction - Sony Xperia S LT26i Troubleshooting Manual

Problem Areas
1.3

Touch Screen

1.3.1 Touch Screen malfunction

Check:
Inspect the touch screen of the Cover Front.
Action:
1. If dirty – clean it.
2. If the touch screen is damaged – replace the Cover Front
Assy.
Check:
Inspect the BtB connector of the Cover Front Assy to the
Main FPC.
Action:
1. If not properly connected – disconnect and reconnect.
2. If dirty or oxidized – clean both sides of the BtB
connector.
Check:
Inspect the Cover Front Assy.
Action:
If the Cover Front Assy or its BtB connector is damaged –
replace the Cover Front Assy.
1257-2931 Rev 6
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Sony Mobile Communications AB – Company Internal
Trouble Shooting Guide Repair Instruction Mechanical/
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