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Flow Chart of Troubleshooting
9-4
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9-1-3. SIM Part
SIM300 pin 1
= "H"?
Resolder or replace SIM501
Check the SIM Card
END
No
Yes
Yes
Yes
No
Check the Clock
After Power ON,
Check SIM_CLK Signal on
pin 3
of SIM300 in a few
second
Yes
No
Resolder or replace UCP301
After SIM card insert,
SIM300
pin 2
=
"H(SIM_RST)"?
Yes
Phone can't access SIM Card
Summary of Contents for GT-C3510
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