Level 3 Repair
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8-7
8-3-2. Initial
Initial Failure
END
Re Check "8-3-1 Power on"
Trouble shooting process
Check the OSC400, OSC500
(Crack, open etc.)
Check the U500 ( Crack etc)
Abnormal
Normal
Change UME400 that is ROM flashed.
Do not use Blank MEMORY.
Abnormal
Change PBA
Yes
Re-download latest SW on the
mobile phone.
Abnormal
Try the Boot Recovery by SD
CARD.
Follow the Recovery Guide.
Abnormal