Can't Recognize Sim; Sim Part - Samsung GT-I8150 Service Manual

Level 3 Repair

8-3-4. Sim Part

Insert SIM card,

Can't recognize SIM

After inserting a SIM card,
VREG_USIM_1.8V( R300 )
Is the SIM recognized ?
Yes
Check
= 1.8V or 3.0V
Yes
Yes
END
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No
Change other SIM card
No
Resolder or Replace SIM500
8-16