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Flow Chart of Troubleshooting
10-2
G
PMU
R300
OSC300
BAT300
1
2
C325
C332
C305
C319
C326
C328
C316
R334
TA300
R325
C314
C317
C310
L300
C329
C312
R307
0
C320
C324
C300
VBAT
ZD300
C313
VBAT
C304
C302
C321
C311
7
_RSTHC
8
GPO3
9
GPO2
3
5
N
E
MI
S
4
5
T
A
B
V
5
5
D
D
V
C
L
6
5
VSS
57
C
N
8
5
C
N
9
5
6
SIMIOHC|_SIMOFF
6
4
7
4
D
D
V
2
D
8
4
D
D
V
P
L
9
4
D
D
V
3
D
5
_SIMRSHC
0
5
D
D
V
1
D
1
5
T
A
B
V
1
D
2
5
D
D
V
C
L
T
A
B
V
D
C
D
39
4
SIMCKHC
0
4
E
V
A
S
V
1
4
D
D
V
1
F
R
2
4
D
D
V
2
F
R
3
4
C
C
V
MI
S
4
4
D
D
V
C
H
5
4
D
D
V
OI
T
A
B
V
REFGND
32
VISA
33
VBATSENSE
34
_REC1
35
_REC2
36
CHGCUR
37
USBVIN
38
VCHG
VSS
4
2
D
C
OI
MI
S
5
2
D
C
S
R
MI
S
_
N
E
MI
S
6
2
27
NTC
28
_ONKEY
29
MICBIAS
3
_IRQ
30
REFC
31
8
1
X
L
D
C
D
9
1
T
A
B
V
D
C
D
2
OSCO
0
2
D
D
V
D
C
D
1
2
A
D
S
2
2
L
C
S
3
2
D
C
K
C
MI
S
1
OSCI
10
GPO1
PWREN1
11
12
PWREN2
13
VSS
4
1
K
2
3
K
L
C
5
1
D
D
V
4
D
6
1
D
D
V
5
D
7
1
D
D
V
6
D
PM300
C327
VDD_IO_LOW_1.8V
C303
R319
R302
VBAT
R322
100
R320
R321
C318
C315
VDD_GSM_CORE_1.2V
VDD_PLL_1.2V
PWREN2
MIC_BIAS_2.1V
VDD_USB_3.3V
VDD_SD_2.9V
VDD_KEY_3.3V
VDD_VIB_3.3V
MES_BATT
AUX_ON
SIMOFFn
SIM_VCC_3.0V
AVDD_HFA_2.6V
VDD_IO_LOW_1.8V
VDD_IO_HIGH_2.9V
AVDD_2.6V
VDD_SLEEP_2.9V
RSTON
JACK_IN
REF_ON_PMU
32KHz_DIGIT
SDA
SCL
ONKEYN
IT_PMU
V_EXT_CHARGE_5.0V
VCC_SYN_2.8V
VDD_RX_TX_2.8V