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LG KS20 - Smartphone 128 MB User Manual

LG KS20 - Smartphone 128 MB
209 pages
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LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
- 117 -
4.13 SIM Detect Troubleshooting
USIM Initial sequence of KS20 is :
SIM_CLK,SIM_RST,SIM_IO triggered → VRUIM_3.0V go to 2.8V → SIM IF work
Start
Work well?
VRUIM_3.0V is 2.85V?
SIM_CLK is run?
Change the Sub board
End
Check CN400
Yes
No
YES
NO
Re-insert the SIM card
Change SIM card
Work well? End
Yes
No

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LG KS20 - Smartphone 128 MB Specifications

General IconGeneral
BrandLG
ModelKS20 - Smartphone 128 MB
CategoryCell Phone
LanguageEnglish

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