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Flow Chart of Troubleshooting
9-10
9-4-2 Slave Sim
Phone can't access SIM Card
Yes
SIM300 pin 1
or R209 = "H" ?
Resolder R200 C215 and C214
No
Yes
After Power ON,
Check SIM_CLK_2 Signal on
pin3 of SIM201 in a few second
Resolder or Replace SIM201
No
Yes
After SIM card insert,
SIM201 pin 2 =
"H(SIM_RST_2)"?
Replace PBA
No
Yes
Check the SIM Card
Yes
END