Figure 4: Fault Finding For Flash Programming Errors (Cont'd) - Nokia NSB-5 Series Troubleshooting Instructions

NSB-5
Troubleshooting Instructions
A
External RAM fault?
Yes
Check pins of SRAM (D302)
Check control lines of SRAM: RAMselX ...
Unknown fault.
Try phone totally dead.
Check R302 and R303 in
Defect FLASH or flashing-
SW has wrong version.

Figure 4: Fault Finding for Flash Programming Errors (Cont'd)

Page 10
No
MCU FLASH Vpp
No
No
both ends.
Voltage higher than
1.7V during flashing?
Yes
Nokia Mobile Phones Ltd.
PAMS Technical Documentation
ID problem?
Yes
Check type of FLASH
Check soldering of FLASH
NO
(Both FLASHES)
Yes
Error
Flashing from X201?
No
Defective MAD
MCUGENIO03 or flashing-
SW has wrong version.
Yes
Check Vpp: X201 pin 10
to R303 (end towards
D301). Check Vpp_GND
from X201 pin 7 to R303
(other end). Check D100
Issue 1 03/01