Figure 16 No charging current
SIM card troubleshooting
Cannot identify SIM card
The hardware of the SIM interface from XGOLD213 (D3100) to the SIM connector (X2750) can be tested without
a SIM card. When the phone is switched on, the phone first checks for a 1.8V SIM card, and then for a 3V SIM
card. The phone will try this several times, where after it will display “Insert SIM card”.
Figure 17 Cannot identify SIM card
RM-704
BB Troubleshooting and Manual Tuning Guide
Issue 1
COMPANY CONFIDENTIAL
Page 3 – 15
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