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Flow Chart of Troubleshooting
7-2
SIM
_
R
S
T
SIM
_
C
L
K
SIM
_
IO
L
200
C241
C238
R204
R
208
VR
EG
_U
SI
M_3.
0V
C208
X
T
AL_IN
44
X
T
AL_O
UT
46
VR
EG
_SYN
T
81
VR
EG
_T
C
X
O
84
VR
EG
_U
SB
10
VR
EG
_WL
A
N
64
VSW_5V
14
VSW_MSMC
31
VSW_MSME
37
VSW_PA
27
VR
EG
_MSMC
32
VR
EG
_MSME
36
VR
EG
_MSMP
50
VR
EG
_PA
28
VR
EG
_R
F
R
X1
69
VR
EG
_R
F
R
X2
67
73
VR
EG
_R
F
T
X
VR
EG
_R
U
IM
42
71
V
DD_RF
41
V
DD_RUIM
V
DD_S
P
KR
77
V
DD_W
L
AN
65
25
V
IB_DRV
_N
VR
EG
_5V
12
39
VR
EG
_MMC
VR
EG
_MSMA
56
6
V
CHG
2
VC
O
IN
60
54
V
DD_ANA
V
DD_MAIN
83
VDD_MSM
52
33
VDD_MSMC
35
VDD_MSME
V
DD_P
A
29
58
53
TCX
O
_
O
UT
US
B_CTL_N
15
US
B_DAT
17
US
B_D_M
20
18
US
B_D_P
11
US
B_ID
13
US
B_O
E
_N
19
US
B_S
E
0
US
B_V
BUS
16
V
BACKUP
48
V
BAT
47
SB
ST
51
SL
EEP_C
L
K
45
SPK
R
_
B
YP
74
S
P
KR_IN_M
78
S
P
KR_IN_P
76
79
S
P
KR_O
U
T_M
SPK
R
_
O
U
T
_
P
75
TCX
O
_
E
N
55
TCX
O
_
IN
62
R
E
F
_
ISET
61
RE
F_
OUT
80
38
RUIM_CLK
26
RUIM_IO
RUIM_M_CLK
34
RUIM_M_IO
30
RUIM_M_RS
T
40
RUIM_RS
T
43
49
S
BCK
S
BDT
KP
DP
W
R
_N
KP
D_DRV
_N
23
22
LCD_DRV
_N
59
MSM_INT
_
N
NC
86
87
NC
9
PO
N
_
R
ESET
_N
PS_H
O
L
D
57
RE
F_BY
P
63
RE
F_G
ND
BAT
_F
ET
_N
7
CBL
0PWR_N
68
66
CBL
1PWR_N
CHG
_CTL_N
4
8
FLS
H_DRV
_N
GND
85
G
P
1_DRV_N
21
IS
NS
_M
5
IS
NS
_P
3
24
P
A
M200
1
ADC_BY
P
AMUX
_IN1
70
AMUX
_IN2
72
AMUX
_O
UT
82
R
230
VR
EG
_MSME_1.
8V
C219
R206
R205
C207
VR
EG
_MSMP_2.
6V
R
229
R
228
C227
R200
C243
C223
V_I
N
VR
EG_M
SM
P_2.6V
2
NE
G
1
POS
C228
BAT
201
T
P
201
C205
C
230
C225
VR
EG
_U
SB
_3.
3V
C213
R
226
VBUS_5V_SW
C201
C206
R202
L
201
C211
3
1
2
R201
D1
VREG
_MSMC_1.25V
VREG
_T
CXO
_
2.8V
T
P
200
VR
EG
_SYN
T
_
2.
8V
C215
C221
C203
C229
VR
EG_M
SM
P_2.6V
VR
EG
_U
SIM_3.0V
C239 C240
C204
VR
EG
_B
T
_
2.
8V
R211
C218
C214
R
227
EXT
_5V_SW
C217
C236
R203
C212
R
209
C
200
C235
C242
C226
VREG
_RF
T
X
_2.8V
C233
VR
EG
_MSMA
_
2.
6V
C220
C234
C237
V_I
N
R212
R
207
C202
C2
4
4
C216
C232
R
225
C224
C
231
C210
VREG
_RF
R
X_2.8V
G
12
OS
C
2
00
3
3
4
4
5
5
6
6
7
7
8
8
G
9
10
G
11
G
SIM200
1
1
2
2
MMC_
CMD
C209
M
M
C
_D
AT
A
MMC_
CL
K
J
IG_
ON
_
S
W
AMUX
_O
UT
ADC_BO
O
T
S
W
PS_H
O
L
D
ADC_BO
O
T
S
W
US
B_D_P
US
B_O
E
_MS
M
US
B_DAT_MS
M
U
S
B
_
SEO
_MSM
PO
N
_
R
ESET
_N
P
M
IC_S
BDT
MSM_SIM_RST
TCX
O
TCX
O
_
E
N
BUFF_
TCX
O
RE
F_
OUT
PMI
C
_SB
S
T
P
M
IC_S
BCK
MSM_SIM_CL
K
MSM_SIM_IO
SL
EEP_C
L
K
US
B_D_M
PH
O
N
E_O
N
PM_INT
_N
Power On