Table of Contents
Advertisement
4.11 USIM Detect Troubleshooting
USIM Initial sequence is :
VREG_USIM_3.0V(TP1) go to 1.8V or 3.0V -> USIM_CLK(TP2),USIM_RESET_N(TP3),USIM_DATA triggered -> USIM IF work
Re-insert the SIM card
TP1 is 1.8V or 3.0V ?
For booting up,
TP2 & TP3 is run ?
Change the SIM card
LGE Internal Use Only
START
Work well ?
No
No
Yes
No
Work well ?
Yes
End
Yes
Change the Main board
- 82 -
Copyright © 2012 LG Electronics. Inc. All right reserved.
4. TROUBLE SHOOTING
End
Only for training and service purposes
Advertisement
Table of Contents
Troubleshooting
