Figure 14 Insert SIM card fault
Figure 15 Signal diagram
SIM card rejected
The error ”SIM card rejected” means that the ATR message received from SIM card is corrupted, e.g. data
signal levels are wrong. The first data is always ATR and it is sent from card to phone.
For reference a picture with normal SIM power-up is shown below.
RM-305; RM-306
Baseband troubleshooting
Issue 2 COMPANY CONFIDENTIAL Page 4 –11
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