User Guide

PAMS Technical Documentation Baseband Trouble shooting
NPE-3
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Algorithm file or
alias ID not found
External RAM fault
Flash programming doesn’t work
MCU Flash Vpp
Error
Unknown fault.
See section:
"Phone dead"
No
Yes
Check for activity on
control lines of SRAM:
J324 (RAMselX),...
Faulty D310 SRAM
No
No
Check type of Flash
Yes
Yes
Yes
Flashing via X002
?
Check Vpp line:
X002 pin 10 ->
R1 -> C349.
Check D001
Yes
Voltage at R1
higher than 1.7V
during flashing?
No
Faulty Flash or
flashing SW has
wrong version
Yes
Faulty D301 MAD2
or faulty D001 or
flashing SW has
wrong version
No
Faulty D301 MAD2
No
Flash programming (2)
Faulty PCB
No