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Level 3 Repair
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Confidential and proprietary-the contents in this service guide subject to change without prior notice.
8-13
8-3-3.USIM Part
Insert & Operate SIM Card
NG
NO
Check L1104
Repair L1104
Check the power of NFC
C607 = 3.3 ~ 4.35V with Battery
Inserted?
Check the SIM card.
Is it right?
SIM card was broken.
Replace SIM card.
Replace PBA
YES
Measure the waveform of
UICC_DATA/CLK/RST
(C1418, C1419, C1420)
Can you see the right
waveform?
Replace SIM FPCB
YES
NO
NO
YES
NO
Replace U601
Check the power of SIM
R1414 = 1.8V or 3.3V?
YES
Summary of Contents for SCH-I535
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