Network/Signal Problems - Sony Ericsson k850 Troubleshooting Manual

3 Network/Signal Problems

Problem Area Items to Check
Before proceeding !
Visually inspect SIM holder.
No Signal or Poor
Signal
Visually inspect antenna contact pads
and the antenna connector.
4/000 21-1/FEA 209 544/131 A
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Company Internal Sony Ericsson Mobile Communications AB
Trouble Shooting Guide, Mechanical
Repair Action
•
Do software update content refresh.
Note: this problem will not be solved by
a regular software update.
•
If dirty or oxidized – Clean it
•
If damaged – Replace the Card FPC
Complete (SIM/COMBO)
•
If dirty or oxidized – Clean it
•
If damaged – Replace the Antenna
PIFA.
Reference Image
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