Trans Flash Trouble - LG U890 Service Manual

4. TROUBLE SHOOTING

4.17 Trans Flash Trouble

Trans Flash is worked as below :
Trans Flash insertion -> VREG_MMC_3.0V is 3.0V -> MMC_CD go to High ->
Trans Flash Insertion detecting by MSM6250A -> go working
Start
Check the B-to-B connector
for SUB PCB
Insert the Trans Flash Card
Trans Flash insertion
Detection is correct ?
Change the Main B 'd
NO
Yes
- 106 -
Check the VREG_MMC_3.0V,MMC_CD signal
Or change the SUB bíd