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Flow Chart of Troubleshooting
+VDD_MAINKEY_3.3V
+AVDD_HFA_2.6V
+VDD_SUBKEY_LED_3.3V
+VDD_SLEEP_2.9V
+VDD_IO_HIGH_2.9V
+VDD_USB_3.3V
MES_BATT
R304
C356
V_EXT_CHARGE
C322
HFR_P
C323
HFR_N
C324
EAR1_M
C325
EAR2_M
C326
SPK_N
SPK_P
C331
REF_ON_PMU
PWREN2
OSC300
C342
C340
C341
C334
C333
C300
C353
C310
C312
C314
C316
VBAT
R303
C319
M2
IN1
C3
IN2
B4
IN3
B10
IN4
B8
IN5
K6
IN6
K12
IN7
L5
IN8
M10
IN9
J5
INA1
H6
INA2
J7
INB1
H8
INB2
K8
U300
C1N
L9
C1P
H12
OUTN
L11
OUTP
F12
CHGIN
F10
CHGINB
H2
XIN
J1
XOUT
C9
PWREN1
E5
PWREN2
G9
TEST1
J9
TEST2
PMU + DCDC + CHARGER
C354
OSC300
C334
L301
C343
C322
C323
C326
C335
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C301
C303
C311
C313
C315
C317
R307
G3
REC1B
G7
REC2B
M4
HPL
L3
HPR
C321
F2
MICBIAS
H10
RXINN
HFR_N
K10
RXINP
HFR_P
F4
SIMOFFB
C7
SIMVCC
B12
USBLDO
+VBUS_DETECT
D10
C327
VL
K4
C328
VBIAS
G1
C329
VISA
E3
VSAVE
H4
CLK32K
D4
TP_PMU_INT_M
IRQB
E7
SCL
D6
SDA
L1
LX
J3
FB
F8
C332
REFBP
F6
ONKEYB
G5
RESETB
C333
R223
R307
C321
C331
C313
C315
C300
C342
10-4
+VDD_SD_3.3V
+VDD_IO_LOW_1.8V
+VDD_PLL_1.2V
+AVDD_2.6V
+VCC_SYN_2.8V
+VDD_RX_TX_2.8V
AUX_ON
JACK_IN
MIC_BIAS_2.15V
R310
R311
R312
SIMOFFn
+SIMVCC_M
C355
32KHz_DIGIT
BAT300
C330
PMU_INT_M
SCL
SDA
ONKEY_N
RSTON
L301
R314
C339
C343
R315
C338
C311
C317
C355
C332
C327
R303
C319
EARSPK_L
EARSPK_R
+VDD_GSM_CORE_1.2V
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