Sim Problems - Sony Ericsson D750 Troubleshooting Manual

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Problem Area
Items to Check
Visually inspect the speaker pins
If the issue has not been resolved !
If the issue has not been resolved !

10 SIM Problems

Problem Area
Items to Check
SIM undetected
Inspect SIM holder
(Insert SIM)
Check whether the phone is locked to a
Unit indicates the
particular carrier and whether the correct
incorrect SIM is
carrier's SIM is being used
inserted (Insert
correct SIM)
If the issue has not been resolved !
4/000 21-1/FEA 209 544/95 A
©
Sony Ericsson Mobile Communications AB
Repair Action
If damaged, dirty or oxidized – Replace speaker
box.
Replace speaker box.
Handle the unit according to local directives.
Repair Action
If dirty or oxidized – Clean.
If damaged – Send to an electrical repair
location.
Use Correct Carrier SIM or test SIM.
Handle the unit according to local directives.
Trouble Shooting Guide, Mechanical
Reference Image
Reference Image
25(33)

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