Sim Part; Sim Card Does Not Work - Samsung SM-G973F Service Manual

8. Level 3 Repair

8-4-4. SIM PART

SIM Card does not work

Check if the SIM socket
Check the voltage of
C4036, C4041 = 1.8V or 3.0V
(SIM1 : ZD4008, ZD4011, ZD4009)
(SIM2 : ZD4005, ZD4007, ZD4006)
Are there any problems?
Confidential and proprietary-the contents in this service guide subject to change without prior notice
Distribution, transmission, or infringement of any content or data from this document without Samsung's written authorization is strictly prohibited.
has damaged
No
Yes
Check the signals
SIM RST / IO / CLK
No
END
Yes
Replace the SIM Socket
Abnormal
Change SIM Card
And check U8015 and U12019
Yes
Check UCP5000 (Crack etc)