Sim Card Rejected; User Interface; Blank Display - Nokia RM-291 Service Manual

Nokia Customer Care

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.

User interface

Blank display

Troubleshooting flow
The display does not show any information at all.
Page 6 –16
Figure 78 Signal diagram
Figure 79 Signal diagram
COMPANY CONFIDENTIAL
Copyright © 2007 Nokia. All rights reserved.
RM-291
Baseband troubleshooting
Issue 1