Table of Contents
Advertisement
Connection between SIM and DBB
• SIM_CLK, SIM_IO, SIM_RST
Trouble Shooting Setup
• Insert the SIM into socket
- Connect PIF to the phone, and power on.
Check Points
• Contact between SIM and socket
- Soldering of SIM socket
Trouble Shooting Procedure
• Check the power supply.
- Check the soldering of SIM socket.
- Check the SIM.
The soldering of SIM connector
The all paths connected
The SIM Card is OK?
The ABB(IOTA) is broken.
Change the board.
START
Insert the SIM Card
is OK?
Yes
to J401 are OK?
Yes
Yes
- 69 -
4. TROUBLE SHOOTING
No
Resolder the
J401.
No
Resolder the
C401, C402, C403, R401
No
SIM card is broken.
Change the SIM Card.
Advertisement
Table of Contents
