Sim Detect Trouble - LG -P715 Service Manual

4.14 SIM Detect Trouble

Sequence of Detecting SIM Detect in P715 is :
The phone reads the information of the SIM card while the phone boot.
(When the SIM card is inserted in the socket, detected by physical contact.)
Yes
LGE Internal Use Only
START
Insert the SIM card
Detect the SIM card?
No
Insert new one,
detect the SIM card?
No
Is there any soldering problem
with pin of SIM socket
No
Change the Main PCB
End
Yes
Change the SIM card
Yes
Resoldering On open pin
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4. TROUBLE SHOOTING
Only for training and service purposes