Sony Xperia Z1 Troubleshooting Manual page 9

Problem Areas: Keys
Check:
Inspect the BtB connector of FPC Assembly Relay to Main
PBA.
Action:
1. If not properly connected – disconnect and reconnect it.
2. If dirty or oxidized – clean it.
3. If the FPC of FPC Assembly Relay is damaged – replace
the FPC Assembly Relay.
4. Replace Main PBA.
Check:
Inspect the rubber of the Power Key (a) and Power Key
switch (b).
Action:
1. If dirty – clean them.
2. If the Power key is damaged – replace the Power Key.
1277-9814 Rev 2
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Sony Ericsson Mobile Communications AB – Company Internal
Troubleshooting Guide (mech)
9(63)