Keys; Back, Menu, Home And Multitask Keys; Volume Key - Sony Xperia Z1 Troubleshooting Manual

Problem Areas
1.2

Keys

1.2.1 Back, Menu, Home and
Multitask Keys
Action:
1. Refer to section 1.3 'Touch Screen'.
2. Replace Main PBA.

1.2.2 Volume Key

Check:
Inspect the external area of the Key Volume.
Action:
If dirty – clean it.
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.
1277-9814 Rev 2
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Sony Ericsson Mobile Communications AB – Company Internal
Troubleshooting Guide (mech)
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