Display; Graphics & Illumination - Sony Xperia S LT26i Troubleshooting Manual

Problem Areas
1.4

Display

1.4.1 Graphics & Illumination
Check:
Check whether the phone vibrates after the Key On/Off has
been pressed.
Action:
If the activation described above is not detected, refer to
section 1.1 'Power'.
Check:
Inspect the ZIF connector of the Cover Front Assy.
Action:
1. If not properly connected – disconnect and reconnect.
2. If dirty or oxidized – clean both sides of the BtB
connector.
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/
11(57)