LG MG180C Service Manual page 64

START
The so lder ing of SIM con nector
is O K?
Yes
The all path s co nnect ed
to C N300 are OK?
Yes
When SIM in ser t that ,
V_SIM Voltage is 2.85V?
Yes
The SIM Card i s OK?
Yes
Replacement
SIM Card is O K?
Yes
SIM Oprati ng OK
4. TROUBLE SHOOTING
Insert the SIM Card
No
Re_sold er the
CN300
No
Re_sold er the
C405,C407,C408,C410,R425
No
Change the ABB
No
SIM car d is br oken .
Change the SIM Card.
The ABB(IOTA) is bro ken.
No
Change th e board.
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