Nokia 6255 サービスマニュアル
6255/6255i6256/6256i (RM-19)
Baseband Description and Troubleshooting
Baseband Description and Troubleshooting
Nokia Customer Care
Page 74
©2005 Nokia Corporation Company Confidential
Issue 2 05/2005
The error "SIM card rejected" means that the ATR message received from the SIM card is
corrupted (e.g., data signal levels are wrong). The first data is always ATR, and it is sent
from the card to the mobile terminal.
corrupted (e.g., data signal levels are wrong). The first data is always ATR, and it is sent
from the card to the mobile terminal.
SIM faults
Is the SIM a 3.0V or
1.8V card?
Measure VSIM at
X2700 pin 3. Is it 3V
or 1.8V?
Check SIM power-up
sequence. It should
look like the
following picture:
YES
NO
YES
NO
YES
Replace used test
SIM card
Replace R2700
Check SIM reader
X2700
Measure VSIM at
C2203. Is it 3V?
UEME failure
NO
NO
VSIM
Reset
Data
Clock
If not as picture