Saturday, 9 April 2011

Nokia 3720 classic INSERT SIM








This is the Nokia 3720 classic solution for INSERT SIM CARD error problem. Just follow some hints below on how to fix if the phone unable to recognize or detect any SIM card inserted to it.

This solution picture below shows the connection line paths of the SIM card pin connector which tells us where and what components on the PCB board needs to check.
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