User Guide

NPE-4
6 - Troubleshooting PAMS Technical Documentation
Page 6-12 ãNokia Corporation. Original
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.
VSIM
Reset
Data
Clock
SIM Fault
Check SIM
reader X386
Measure
VSIM at
X386. Is it
3V?
Check SIM power-up
sequence
Measure
VSIM at
C302. Is it
3V?
UEM FAILURE
Replace R388
Yes
No No
Yes