Sim-Card Rejected - Nokia NHM-8NX Series Troubleshooting Instructions

PAMS Technical Documentation

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.
Ch1 : VSIM
Ch2 : RESET
Issue 1 05/02
Display shows :
"SIM Card Rejected"
Yes
X387
VSIM = min. 1,6V(1,8V Card)
No
VSIM = min. 2,8V(3V Card)
(See illustration below)
Yes
X387
No
ATR data can be seen at
SIM data pin.
Yes
SIM Interface OK
Normal SIM power-up sequence
Ch3 : CLOCK
Ch4 : DATA
ãNokia Corporation
Troubleshooting Instructions
Check :
R386, PWB.
Else defective D200*
Check :
X387, R386, PWB.
NHM-8NX
Page 13