RH-18/36/38 Company confidential
CCS Technical Documentation
Page 12 Nokia Corporation. Issue 1 10/03
SIM-Card rejected
The error ”SIM card rejected” means that the ATR message received from SIM card is cor-
rupted, 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.
Figure 8: Signal diagram
Normal SIM power-up sequence
Ch1 : VSIM
Ch2 : RESET
Ch3 : CLOCK
Ch4 : DATA
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