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VDD_LCR_LOW_1.8V
VDD_IO_LOW_1.8V
AVDD_HFA_2.6V
VDD_SLEEP_2.9V
VDD_LCR_HIGH_3.3V
AVDD_2.6V
VDD_IO_HIGH_2.9V
VDD_BT_1.8V
C511
C512
C513
C514
VDD_IO_LOW_1.8V
SCL1
SDA1
SIM_OFF
PMU_INT_M
RSTON
G2_REF_ON
VHIGH
AUX_ON
R504
KEY_POWER_ON
GSM_REF_ON_PMU
DVM1
DVM2
VDD_TX_2.6V
VDD_IO_HIGH_2.9V
C526
32KHZ_DIGIT
OSC500
C528
VDD_GSM_CORE_1.2V
R528
VDD_MEM_CORE_1.8V
VBATT_4.2_3.3V
TA500
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VDD_IO_3.3V
C500
D4VDD_1.2V
C515
C516
C517
B22
SCL
A28
SDA
B14
USIMACT
B15
USIMPRES
B5
INT_N
A16
RSTHC_N
B4
TP500
RSTMEM_N
B9
PWREN1
B8
PWREN2
B7
TP501
PWREN3
A8
PWREN4
R502
B6
PWREN5
B16
SHUTDOWN
D5
REC1_N
A56
REC2_N
A20
ONKEY_N
R505
B10
GPIO1
U502
NC
A11
GPIO2
R506
B11
GPIO3
A12
GPIO4
TP502
A14
GPIO5
B12
GPIO6
D6
GPIO56GND
D8
GPO1
TP503
A43
GPO2
B25
NC
B35
NC
D4
GPO1VIN
B34
GPO2VIN
B36
NC
B40
NC
B13
CLK32K
A52
OSCI
B41
OSCO
L501
L502
C529
C530
9-2
Flow Chart of Troubleshooting
VBATT_4.2_3.3V
C504
C505
C506
C507
C508
C509
C510
C518
VINT
C519
B38
REFC
A48
REFGND
B39
VINT
A49
VHIGH
VHIGH
B42
NC
D2
NC
D3
C521
NC
D7
NC
A1
VBAT
A2
VBAT
A47
VSAVE
A17
NC
C522
USB_VBUS_5V
B1
VBATSENSE
A54
VCHG
A55
VCHG
A53
VBUS
D1
USB_SUSPEND
SCUSB
VINT
A18
C525
NC
B44
CCSET
A30
VINT
VINT
A21
NC
A24
NC
B43
VINT
A25
NC
A29
NC
R507
A31
NC
A32
C527
NC
R508
A44
NC
2
NC
3
NC
USB_LDO_5V
VDD_USB_3.3V
SIMVCC_M_3.0V
VDD_SYN_2.8V
VDD_RX_TX_2.8V
VDD_RX_2.8V
VDD_TX_2.6V
VDD_PLL_1.2V
VBATT_4.2_3.3V
C520
R503
0603
SHORT
C524
BAT500
CCSET
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