Sim Part - Samsung GT-I9300 Service Manual

Level 3 Repair

8-3-4. Sim Part

Check the Pin Soldering
Check the SIM Voltage.
(R324) >= 1.8 or 3.0?
R325 R326
T_FLASH_D(2)
T_FLASH_D(3)
T_FLASH_CMD
T_FLASH_CLK
T_FLASH_D(0)
T_FLASH_D(1)
ZD300
3
2
1
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Insert SIM card
Yes
of HDC300
Yes
Yes
END
VTF_2.8V
R327 R329
R328
R330
C350
4
C349
5
6
No
Resoldering and recheck
Change to the new SIM card.
No
If it doesn`t still work SIM card after changeing
the SIM card, Check the UCP300 (Crack etc)
CP_VSIM NFC_SIMVCC
R323
R322
HDC300
1 1 2 2
3 3 4 4
5 5 6 6
7 7 8 8
9 9 10 10
11 11 12 12
13 14 14
13
15 16
15 16
8-12
CP_VSIM
TP_329
SIM_CLK
TP_330
SIM_RST
TP_331
SIM_IO
NFC_SWP
T_FLASH_DETECT