Sim Card Rejected; User Interface; Blank Display - Nokia 2760 Service Manual

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

Context
The display does not show any information at all. If there is only main or sub display blank, the problem
mostly exists in individual display. Replace related display first. For main and sub display blank, refer to
troubleshooting flow below.
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Figure 16 Signal diagram
Figure 17 Signal diagram
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Baseband Troubleshooting Instructions
RM-258; RM-259
Issue 1