Nokia Customer Care
"Insert SIM Card" in device display, although the card is inserted
START
Perform
No
Replace UEM
SIM BB self tests.
Are they OK?
Yes
Perform
No
Phoenix SIM tests.
Are they OK?
Yes
Check & clean battery
No
Is the SIM
centre contact. Verify BSI
Detection Reliable?
signal has a steady voltage.
Yes
Analyse signals & look for
No
errors in rise / fall times due
Problem solved?
to wrong fitted / faulty
Yes
END
Issue 1 05/04
Company Confidential
Perform
BB SIM self tests.
Are they OK?
Yes
Check SIM connector
Is it OK?
Yes
Measure VSIM.
Is it 1.8/3.0V when SIM
interface is powered
up?
Yes
Check SIM Power Up
sequencing. Is it OK?
Yes
passives
Copyright © 2004 Nokia Corporation
Company Confidential
6 - Baseband Description and Troubleshooting
No
Replace UPP_WD2
Check & clean connector
No
contacts & pads
Replace connector
No
Measure VSIM
resistance to GND.
Is it low?
Yes
Check C470. Is it OK?
Yes
Change SIM ASIP, R470
Check Clk, RST &
No
DATA at SIM connector.
Are the signals
present?
Yes
RH-47
No
Change UEM
No
Change VSIM
decoupler, C470
Check Clk,
No
RST & DATA between
No
UEM and the SIM ASIP.
Are the signals
present?
Yes
Change SIM ASIP, R470
Page 43
Change UEM