LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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4.8 SIM Detect
USIM Initial sequence of L705iX is :
USIM_CLK,USIM_RST,USIM_DATA triggered
→
VREG_USIM_2.85V go to 2.85V
→
USIM IF work
Start
Work w ell?
VREG_USIM_2.85V is 2.8 5V?
USIM_P_CLK is run?
Chan ge th e Main board
End
Chec k J40 0
Yes
No
YES
NO
Re-in ser t the SIM card
Chan ge SIM card
Work w ell?
End
Yes
No
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Summary of Contents for L705ix
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