Motorola A3100 Troubleshooting Manual page 7

7. Try to check the external DDR and Nand Flash
1. External DDR check _ Check the External DDR by ram test tool
Pass=> The External DDR is workable
Fail => a) MSM7201A can find the memory
b) U3 is damaged
2. Flash check _ Dump the image from the damaged unit
Pass=> The External flash is workable
Fail => a) MSM7201A can find the flash
b) U3 is damaged
8. Redownload the SW
Try to redownload the SW if the main code image is damaged
Service Engineeing & Optimization
Level 3 , Rev.1.0
Can't Power On (5)