LG -A290 Service Manual page 101

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START
Micro SD Detect
OK?
Yes
Check out
MMC_CLK & Data
Timing OK?
Yes
Replace Micro SD Card
Yes
Micro SD Card will
work properly
LGE Internal Use Only
No
Check the
VMMC(TP1)=.8V?
Yes
MMC_DET(TP)
Is High?
YES
No
Re-download SW
- 101 -
4. TROUBLE SHOOTING
No
Change U101
No
Re-attach or
Replace S00
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