User Guide

First, check that SIM LOCK is not causing the error by using a Test-SIM card and connect the phone to a tester.

Troubleshooting flow

Figure 14 No registering or call

SIM related faults

Insert SIM card fault

Troubleshooting flow

The hardware of the SIM interface from Liteplus (D2200) to the SIM connector (X2700) can be tested without

a SIM card. When the power is switched on the phone first check for a 1.8V SIM card and then a 3V SIM card.

The phone will try this four times, where after it will display ”Insert SIM card”.

RM-392; RM-393

Baseband Troubleshooting Instructions

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