Level 3 Repair
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Confidential and proprietary-the contents in this service guide subject to change without prior notice.
8-11
8-3-4. Sim Part
Insert SIM card
Check the Pin Soldering
of CN300
Yes
Yes
No
END
Check the SIM Voltage.
(R310) >= 1.8 or 3.0?
Resoldering and recheck
Change to the new SIM card.
If it doesn`t still work SIM card after changeing
the SIM card, Check the UCP300 (Crack etc)
Yes
No
VAP_IO_2.8V
CP_VSIM_3.0V
C342
C343
Z
D
3
00
R310
NC
15
16
NC
NC
17
C340
NC
NC
23
24
NC
10
NC
NC
11
12
NC
NC
13
14
NC
22
22
3
3
4
4
5
5
6
6
7
7
8
8
NC
9
18
CN300
1
1
19
19
2
2
20
20
21
21
Z
D
3
02
Z
D
3
03
R
3
11
C341
R322
R323
SIM_RST
SIM_CLK
SIM_DETECT
SIM_IO
BOTHHOLE100
BOTHHOLE104
C
1
9
7
C198
C3
40
C3
41
C342
C343
C
4
0
1
C
41
5
C
4
1
6
C
4
1
7
C
4
1
8
C41
9
C
4
2
0
C421
C
4
2
2
C
4
3
9
C
4
4
0
C
4
4
1
C
4
4
2
C
4
44
CN
30
0
FP
C30
1
R
1
1
5
R1
16
R
1
1
7
R
1
1
8
R
1
1
9
R
3
1
0
R
3
1
1
R
3
2
2
R
3
2
3
R
3
2
4
R
3
2
5
U109
ZD300
ZD
30
2
ZD
303
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