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Flow Chart of Troubleshooting
9-2
TP305
C309
OSC301
VBAT
L300
C323
C321
+VDD_IO_LOW_1.8V
C308
C300
C310
R304
C330
C322
C318
C306
C317
C315
TP306
R301
C320
R300
VBAT
C312
C319
C303
BAT300
2
1
8
GPO3
9
GPO2
T
A
B
V
5
5
D
D
V
C
L
6
5
VSS
57
C
N
8
5
9
5
C
N
6
SIMIOHC|_SIMOFF
7
_RSTHC
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
3
5
N
E
MI
S
4
5
4
SIMCKHC
0
4
E
V
A
S
V
1
4
D
D
V
1
F
R
D
D
V
2
F
R
2
4
3
4
C
C
V
MI
S
4
4
D
D
V
C
H
5
4
D
D
V
OI
6
4
T
A
B
V
7
4
32
VISA
33
VBATSENSE
34
_REC1
35
_REC2
36
CHGCUR
37
USBVIN
38
VCHG
39
VSS
5
2
D
C
S
R
MI
S
_
6
2
N
E
MI
S
27
NTC
28
_ONKEY
29
MICBIAS
3
_IRQ
30
REFC
31
REFGND
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
4
2
D
C
OI
MI
S
GPO1
11
PWREN1
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
1
OSCI
10
VBAT
C307
C311
R302
C316
C305
C304
R303
C329
+AVDD_HFA_2.6V
+VDD_USB_3.3V
+VDD_SLEEP_2.9V
+AVDD_2.6V
+VDD_IO_HIGH_2.9V
+VDD_IO_LOW_1.8V
+VDD_SD_3.3V
+SIMVCC_M
+VDD_RX_TX_2.8V
+VCC_SYN_2.8V
V_EXT_CHARGE_5V
MES_BATT
PMU_INT_M
ONKEYN
SCL
SDA
+VDD_GSM_CORE_1.2V
+VDD_VIB_3.3V
+VDD_KEY_3.3V
32KHz_DIGIT
PWREN2
REF_ON_PMU
+VDD_PLL_1.2V
SIMOFFn
RSTON
+VBUS
AUX_ON
0
0
3
C
3
0
3
C
C304
C305
C306
C307
C308
C309
C310
1
1
3
C
C312
C315
6
1
3
C
C317
8
1
3
C
9
1
3
C
0
2
3
C
C321
C322
3
2
3
C
C329
C330
C510
D5
03
0
0
3
L
5
0
5
L
L506
OSC301
0
0
3
M
P
0
0
6
Q
R300
R301
3
0
3
R
TP305
TP306