Sony Ericsson K770 Troubleshooting Manual, Mechanical page 16

Problem Area Items to Check
If the issue has not been resolved !
Speaker: Before proceeding !
No sound or poor
quality sound
Visually inspect speaker's external port
Visually inspect the speaker's dust
cloth
4/000 21-1/FEA 209 544/142 A
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Company Internal Sony Ericsson Mobile Communications AB
Trouble Shooting Guide, Mechanical
Repair Action
•
Handle the unit according to local
directives.
•
Perform a flash upgrade and a setting
reset.
•
If clogged – Clean it.
•
If dirty or damaged – Clean or replace
Speaker gasket.
Reference Image
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