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1
2
A
VREG_RFRX2_2.7V
L500
C532
C507
B
C508
C509
VREG_MSMC_1.2V
L501
R507
C513
C
R509
C514
VREG_RFRX1_2.1V
L502
R512
D
C526
C533
C527
R516
E
V_BAT
BTC500
1
1
2
VF
2
3
F
3
4
4
5
NC
6
NC
G
VIO_1.8V
V_EXT_SAFE
VREG_TCXO_2.85V
R533
U505
D502
PS_HOLD_PU
1
6
A
VCC
PS_HOLD_PU
2
5
1
SYSEN
B
NC
3
4
3
GND
Y
2
4
ON_SW
5
IF_CON_SENSE
H
1
2
3
4
5
V_BAT
VREG_RFRX1_2.1V
V_BAT
V_BAT
V_BAT
R505
C505
R506
A6
OUT1
A1
A5
IN1
OUT2
F1
A7
IN2
OUT3
A4
C7
IN3
OUT4
H5
B2
IN4
OUT5
F7
OUT6
C3
D6
FB1
OUT7
C2
G7
FB2
OUT8
F4
H7
FB3
OUT9
G1
OUT10
A2
H6
LX1
OUT11
B1
LX2
H4
H2
LX3
XIN
U501
H1
XOUT
B4
ENO5
B3
B5
TCXO_EN
ENO7
HFPWR
F6
PWRON
D1
G4
D+
PWRHOLD
E1
D-
E7
REFBP
G5
E6
CP_PM_SCL
I2CCLK
REFOUT
G6
E4
I2CDATA
RSTIN
CP_PM_SDA
F2
DAT
G3
C6
CLK32K
32KHZ
IO
E2
VREG_MSMP_2.6V
SE0
E5
D3
CLKIN
OE\
C4
R511
ONO\
D5
F5
SIMCLK
IRQ\
C5
E3
R513
SIMDATA
RESET\
D4
F3
SIMRST
ENBUCK3
C523
R518
R519
IF_CON_SENSE
ON_SW
C528
V_BAT
VBAT
S
TA500
Q500
D500
R532
D501
3
1
Q501
2
3
4
5
6
7
VREG_USIM_3.0V
R503
POS
1
C503
BBAT500
NEG
2
VREG_MSMP_2.6V
C506
VREG_MSME_1.8V
VREG_MSMA_2.6V
C516
C517
C518
C521
C515
FONE_ON26
PS_HOLD_F
C525
REF_OUT
OSC500
TP_ONO_
PM_INT_N
PON_RESET_N
VREG_SYNTH_2.8V
C524
U506
RP103K281D-TR
1
VOUT
2
GND
C534
VIO_1.8V
R520
U504
R522
1
6
A1
Y1
IF_CON_SENSE18
2 GND
5
VCC
3 A2
Y2 4
KEY_PWRON
R530
R531
6
7
8
9
VREG_TCXO_2.85V
VUSB_3.3V
C522
C519
R510
USBSW_ISET
R514
V_BAT
VDD 4
CE 3
TCXO_EN
C536
5
VIO_1.8V
VTF_3.0V
R529
R523
R524
R525
R526
R527
HDC501
1 1
2 2
CON_EARSPK_L
3
3
4
CON_EARSPK_R
5 5
6
7
7
8
ALS_IOUT
10 10
9 9
SCL
11
11
12
12
SDA
13 13
14 14
15
15
16
16
17 17
18 18
TF_DAT(2)
19
19
20
20
TF_DAT(3)
R539
21 21
22 22
TF_CMD
R540
23
23
24
24
TF_CLK
25
25
26
26
TF_DAT(0)
27 27
28
28
TF_DAT(1)
29
29
30 30
TF_DETECT
C538
C539
R541
8
9
10
11
V_BAT
U500
V_BAT
R501
R502
1
8
CTG
SDA
SDA
2
7
R537
CELL
SCL
SCL
R534
3
6
VDD
EO
4
5
GND
SEO
C501
D503
C502
C500
V_EXT_FET
V_BAT
VIO_1.8V
C512
V_EXT_SAFE
R508
CHG_ING_N
12
11
10
13
GND
14
NC
15
NC
9
MIN
1
U502
SETI
8
BATT
2
VF
DETBAT
R515
7
_ABO
3
ABI
4
5
6
R517
CHG_EN
/POK
VREG_USIM_3.0V
VALS_3.0V
VDD_3.0V
R538
CON_EAR_ADC
4
CON_DET_3.5
6
8
CON_FM_ANT
PS_VOUT
SIM_RST
SIM_CLK
SIM_IO
C530
C537
C529
C531
C540
10
11
12
A
B
C
D
E
F
G
H
12
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Troubleshooting
