LG VX5400 Service Manual page 60

Check if there is any major difference referring
Redownload S/W, and then recalibrate the Main B/D
Check if there is any major difference referring
All DCN Rx check is completed
LGE Internal Use Only
Start
Check pin 30, 31, 33, 34 at U111
To Figure 4.1. 2 (g), (H)
NO
Check pin 30, 31, 33, 34 at U111
To Figure 4.1. 2 (g), (H)
NO
. If the phone still do
not work , change Main B /D .
Checking Flow
Checking Flow
YES
YES
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Replace U 111
Replace Main B /D
Only for training and serving purposes