Sim Card Fault (Insert Sim / Card Rejected) - Nokia RH-30 Series Troubleshooting Instructions

SIM card fault (Insert SIM / Card rejected)

ICQ: 343183001 QQ: 35070846 Email: Serviceic@yahoo.com.cn
Start
Insert SIMor
Card rejected
fault?
No
End
Figure 7: SIM card troubleshooting
Set phone to LOCAL
Yes
mode. Is it OK?
Yes
Measure VSIM voltage
from X386. Is it ~3.0V?
Yes
Check SIM power-up
sequence. Is it OK?
Yes
Check BSI-line including
No
X100,C100,C240,R202 and
R206, R310. If
OK
R206. If OK, change UEM.
Check VSIM-line
R388,
(X386,C390,R386,C203).
No
If OK, change R388.
If still fail, change UEM.
Check SIM lines (X386). If
OK, change R388. If still fail,
No
change UEM.
Change UPP
,change
UEM