Samsung SM-G955F Service Manual - Direy
8. Level 3 Repair
8-1. Components Layout
Confidential and proprietary-the contents in this service guide subject to change without prior notice
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
SUB1 ANT
SUB1 ANT
(LB/MB)
(LB/MB)
SUB2 ANT
(HB)
GPS
EXTRACTOR
B8666
GPS
DPX202700DT-4062A1
LB LFEM
HFQRX4WJB-361
MB LFEM
HFQRXEVJB-362
B40
SAFFB2G35AA0F3K
B32
SAFFB1G47AA0F3K
DRx_LB1
DRx_MHB3
DRx_MHB2
2G_5G_ANT0
2G_5G_ANT1
DRx_UHB_LAA
PRx_UHB_LAA
Barometer Sensor
6Axis Sensor
Multiplexer
74AUP1G157GM
CP_LAA_CTRL_0
CP_LAA_CTRL_1
PMIC_CLK_32K
SIM
Connectivity
& Sensors
GPS
Magnetic Sensor
PROXIMITY
PMIC_CLK_32K
-SD
GNSS LNA
SKY65611-
11
BT/WIFI
SWB-E32
HRM Sensor
SIM1
SIM2
5G BPF5G LNA
DEA165500BT-2208A1KBGAU1A10-1
AP_PCIe
BT_PCM
AP_UART
CP_UART
2.4G BPF
B8849
2.4G BPF
885067
BT_UART
USIM USIM SDIO
Micro SD
INT
HALL Effect Sensor1
INT
HALL Effect Sensor2
I2C
INT
NFC
SEN82SGXS1
-YT30
I2C
SPI
GPS_RF
SAW
SFHG89GA002
GPS_RF_IN
SPI
I2C
INT
I2C
Sensor HUB + GPS
BCM4774IUB2G
CP_UART SPI
I2C
INT
GNSS_TCXO
BT_UART
OSC
MAIN
MIC
MAIN_MIC_DATA
VTS_DMIC_PDM
VTS_AMIC_PDM
SPI
I2S
I2S
I2C
MIPI 2LANE
SPK AMP
MAX98506B
Audio Codec
CS47L93
SPK
AUDIO
EAR OUT
EAR MIC
SUB
MIC
RCV
PMIC_CLK_32K
MAIN1 ANT
(LB/MB)
MAIN2 ANT
(HB)
DPX202700DT-4062A1
RF
RF1646
B7/40
SFWG52DBB02
HB LFEM
HFQRX4WJB-363-1
LB LPAMID
LMTWDVFA-J51
MB LPAMID
AFEM-9060-SG1
B32
SAFFB1G47AA0F3K
B34/39
SFWG00DB002
2G PAM
SKY77365-
11-1
SAFEA782MAB8F3K
B13
DRx_MHB4
DRx_MHB1
PDET1_IN
PRx_LB1
Tx1_LB1
Tx1_LB2
Tx2_LB2
Tx1_LB3
Tx1_MHB1
Tx2_MHB2
Tx1_MHB2
PRx_MHB1
PRx_MHB2
PRx_MHB3
S955
SPEEDY
MARCONI
AP
EXYNOS8895
I2C
MIPI 2LANE
I2C
AF_I2C
I2C
AF_I2C
FROM_SPI
IRIS
Front CAM
Rear CAM
MIPI 4LANE
COMP_SPI
MIPI 2LANE
MIPI 4LANE
COMPANION
`
S5C73C3X01-
IRIS
IC
CAMERA
L030
B1/3
SAWFD1G84AA0F3K
HB LPAMID
QM78038
Tx1_MHB3
Tx1_MHB4
PRx_LMH
PRx_MHB4
PRx_MHB5
TCXO
LPDDR4X(4GB)
K3UH5H50MM-NGCJ
SPI
DISP_DET
I2C
MIPI 4LANE
DDI_SPI
I2C
UFS 2LANE
I2C
BOOT_LDO
FINGER PRINT
NCX2200GM
MAIN TSP
MAIN OCTA
DISPLAY PMIC
S2DOS03
UFS MEMORY(64GB)
KLUCG4J1CB-B0B1
VDD_UFS_1P8
VDD_UFS_2P95
UFS BUCK DCDC
S2ABB02
EL_ON1
DISPLAY
MEMORY
VRF_VCC2_ET
VRF_VCC1_ET
RFFE0
ET Modulator
S57350X01-
6030
MST_ENDATA
MST&WPC
P9320S
WIRELESS_AC2
I2C
MST_PWR_EN
MST SW
S2MIS01
I2C
FLASH_EN
SUB PMIC
S2MPB02X
01-0630
FLASH LED
IRIS LED
I2C
AP_PMIC_
AP PMIC
S2MPS17-3
PMIC_CLK_32K
CLK_32K
X-TAL
32.768
KHz
CL54_JIG
VDD_BOOST_5.2V
I2C CP_UART
IF PMIC
MAX77865
MOTOR
SVC LED
USB3.0
USB3.0
VCON_BOOST
FAN48618BUC53X
CHG_IN_5P0
VBUS_IF_5P0
JIG_ONB_CC
OVP , L/S
FPF3688
USB Type-CPMIC
VCONN_BOOST_EN
VCONN_IN_5P0
CC IC
S2MM005X02
CC
USB Type-C
I2C
CC_SBU
DP_AUX_N/P
USB SS
DPDT
S/W
DG2730DN-
T1-GE4
SBU_OUT
ANT403
ANT303
ANT306
ANT305
ANT304
ANT402
ANT206
V204
L244L245
L205
L251
L204
L243
U203
ANT208
ANT802 ANT803
V801
V206
L805
C280
C281
ZD204
ZD205
C838
CN300
C361
C362
ZD300
ZD302
ZD303
ZD304
ZD306
L302
L303
R309
R310
R311
ZD323
V302
R332
R307
C336
ZD307
R306
C329
V304
R343
C353
ZD321
ZD313
C332C333
ZD322
R344R348
C354C359
R303
V300
R300
ANT302
C330
C331
C317
R301
ZD308
ZD309
ZD310
ZD311
ZD312
C343
C7165
C7227
U7023
V301
C7164
V303
TA7001
C318
V205
R313
ANT207
V200
ANT201
L206
C201
ANT209
ANT203
L212
L203
L208
L207
F204
L235
C222
L230
C204
C286
CPL200
V7005
L200
V210
ANT212
C837
V800
L804
L209
F203
L213
L220
C217
C218
C295
F207
L258
CON301
HDC1000
L1009
C481C482
R5032
ZD305
R312
R5033
U417
V7008
V7002
V207
ANT202
C7105
TP7017
TP7015
TP7016
C7062
TP7000
TP7012
V203
C203
C202
L214
F206
C245 C246
F201
L259
L260
ZD1002
L1007
C1006
C1008
L1001
C1009
C1011
ZD1003
ZD1004
ZD1005
ZD1006
C1030C1031C1032
ZD1001
C1029
TP400
C403
R335
TP406
C404
C405
C407
C342
TP7007
TP402
TP410
C413
C406
R400R401
C402
U400
TP408
R404R405
C414
C483
C7112
TH7000
L7017
C7104
C7103
C7099
L7014
L7015
R5080
C7102
C6089
C6085
C6035
C7135
C6062
C6038
C5003C5004
C6059
SC6004
C7016
R7006
C7025
UCP500
C6071
C316
C6069
C6080
C6061
C7063C7064
C6088
C6109
C6070
C6082
C6037
C6042
C6058
C315
C7045
R5044
C5007
C7081C7083
C7225
C7226
U301
C7203
C7085
C7215
R5064
R5051R5052
R5063
C305 C307
TP_CLK_MON
TP7004
TP7020
C7084
TP316TP317
R5081 R5082R5083
TP7006
TP301
TP7003
TP304
TP7018
C327
TP202
R315
TH300
TP315
TP314
C149
C146
C147
L154
C163
C166
F202
L216
L217
C250
L239L240
C432
F205
L411
L219
L238
U407
C433
L410
C434
L409
V209
L412
L414
ANT7004
F402
C7160
C7229
L413
L415
L7020
L7021
C400
L400
C401
TP424TP428
TP401
TP403
TP447
R7051
ZD320
TP407
TP409
R7016
TP905
TP448
TP454
R5045
TP445
TP907
TP908
TP446
TP906
C7110
TP904
C982
C7109
C7130
R7007
C7108
R7019
C7161
C7159
C955
C953
R5023R5024
U904
R5062
R5079
U7018
C7022
R5073
C7214
C6081
C6060
C6083
C6087
C6055
C956
R5050
R5076
R5068
R5061
C6110
C6034
C6045
R5074
C7044
C7053
C7072
C7073
SC6005
C302
C7061
C304
C303
C931
L100
C154
L101
U100
C150C151
C160
C144
L134
C170
C169
C145
C148
C436
C7221
V211
C320
R336
C153
C425
R5007
R5096
R5006
R5095
R304
C319
C5000
C6051
C6090
C6084
TP809
C152
C156
ANT211
ANT213
ANT7005
ANT300ANT301
C903
C951
C958
C954
C952
C957
TP903
C6086
C6036
C6053C6054
C5005
V5001
R5041
C5001 C5002
R5009
C6098C6099
C6023
C6142
C6052
C6096
C6039
C6044
C6027
C7047
TP307
TP308
R5010
TP5005
TP5006
C7005
C7006
C7007
R5111
R5057
R5060
R5071
R5072
R5115
R5070
R5059
C300
C301
TCXO_EN
TP306
C155
C173
C168
R5069
R5116
R5117
R5118
R5114
TP7022
R102
R103
L133
C172
R5001
TP7005
R5088
R5056
R5112R5113
TP7024
L118
PAM102
SC6002
C1105
L150
C1104
C143
C128
C174
C198
L165
C1125
C129
L116
L135
C115
L129
L104
C118
C134
F105
F103
L125
C193
L131
L130
L169
C190
L170
F102
L127
L120
L126
L123
ANT100
V100
ZD7003
V7007
Q7000
R882
R883
R884
Q800
C859
C858
U805
C860
C868
R5011
C125
C126
PAM101
C124
C122
R840
C828
C829
C823
C826
C827
C867
C801
C802
L809
C857
C873
ZD803
C874
ZD804
R5012
R814
C103
C104
C105
C271
L164
C138
C141
C1121
C139 C140
C1122
C1124
C133
C1123
C123
C831
C812
C819
R802
C817
C824
C822
C825
U800
L801
C806
D800
C807
R816
R813
R850
ZD802
R851
C101
C114
C111
C112
L108
PAM100
C136
C813
L806
R800
C816
C839
C876
R823
TP7002
TP812
TP813
TP802
TP811
TP810
TP808
C814
C855
R804
C805
C818
R848
U808
R807
C833
C834
C871
C830
C832
C836
C803
L803
R5020
R5019
R819
C800
R818
R801
R855
C804
R821
C847
C809
R822
R817
U804
R879R880
C875
R815
C840
L811
L812
L813
D802D803
C848
C849
C850
C851
R812
C881C882
R865
U7027
C100
C106
C102
L113
C852
L819
C853
R806
C870
R803
R868
R881
R856
L810
ZD812
U803
ZD811
BOTHHOLE7000
ANT210
BOTHHOLE7001
C7011
C7077
C7001
TA7005
TP7021
TP305
U902
TP7019
R5022
R926
TP300
R905
BOTHHOLE7003
C981
BOTHHOLE7004
R860
R861
MIC800
R859
C835
C299
L224
L226
V7000
C2000
TA7000
L2001
V2000
L431
L2000
C476
L432
U411
C440
TP450
TP451
TP452
U409
V7001
C439
TP453
C900
C918
C922
C925
C943
C917
C939
C942
C923
C924
C920
C936
C921
C935
C937
C938
C901
L909
U901
C945
C941
C927
C902
TP902
C905
TP909
C978
L903
TP901
C904
TP_COMP_MCLK
C7222
C6040
R1012
U1000
C7052
C6041
C6046
C7223
C6002
C6024
C6033
C7034
C6021
C6031
C6148
C6093
C6146
C6125
C6111
C6013
C6137
C6019
C6103
C6049
C6092
C6141
C6006
L1002
C6119
C6011
C1005
L1003
C6007
C7054
C1024
C6009
C7049
C1023
R1011
C7092
C6102
C6133
C6056
C6057
C7089
C6028
C7051
L7005
L7019
C6143
C6144
C7018
C6022
L7007
SC6000
C7032
C7017
L7006
C7035C7036C7039
U7002
U7007
C7057
L7011
C310
C7000
C7004
C312
C311
L7002
C306
U300
C7075
C309
C308
R906
C7002C7003
L300
R5021
C7013 C7014C7015
C911 C912
C7087
C914
C980
C930
L902
V7003
C344
C345
R331
TP7010
C346
C265
C266
C325
R305
C273
TCX300
L252
C224
C258
C257
C225
L233
C267
C268
C260
L234
C275
C259
C272
C287
R203
C264
C256
C255
C227
L250
C117
L157
C1118
C226
F101
L111
C120
L151
SC6003
C180
C969
C964
R918
C963
R907
C977
R5025
HDC901
R5026
C966
C975C976
C967
C972
C970
C971
C965
C880
C877
V7004
ZD805
C879
V7009
L800
ANT800 ANT801
C861C862
L160
C130
RFS104
ZD101
R101
C142
C854
C863
C842
R862
R887
R836R837
R885
C865
U806
R886
C866
R809
R847
C869
R5105
L1004
R5100
R5093
HEA1004
R5092
R910
R1000
C1020C1021 C1022
C435
U402
C7107
C7220
R7002
R7054
R7053
R7052
R5043
R5046
C926
R901
R902
C946
C940
L907
R900
C979
C906
C7111
C7131
R7036
C7201
C944
L906
C7020
C7137
D7002
L7018
C7213
C7088
R5031
C7024
C7043
C6047
C6063
C6076
C6147
C7091
R5030
C7090
C6043
C6016
C6018
C6134
C6100
C6136
C7050
L7003
C7026
C7042
L901
L900
L237
C121
C188C189
L155L156
L143
C175
C1126
C6020
C6145
C6101
C6064
C6139
C6107
C6050
C6010
C6004
C6005
C6000
C7082
C6126
C7071
C6017
C7046
C6014
C6140
C6113
C7029
C6135
C6129
C7055
L7000
L7001
C7021C7023
C7028
C7056
C7058
L7009
L7012
C7009
C7008
C7078
C7010
C909
C908
U900
C907
C932
C933
C913
C910
L904
L236
C261
C263
C270
C262
C269
U202
C135
L102
TP200
C107
L167
L152
C1100 C1101
C127
C181
C6030
C6012
C6131
TP7001
C6132
C6008
C6138
C6026
C6095
C6003
C6114
C6065
L7004
C6029
C6015
C7079
C7059
C7040
C7012
C7068
C7070
C7033
C7027
L7010
C7069
C7019
L905
C928
C929
C279
L201
C208
L215
L242
L140
L171
L132
C1107
C314
L7008
C7076
C1103
PAM103
U101
C178
L110
L163
C109
L103
C116
L114
C132
L109
C131
F100
L105
C113
BOTHHOLE7007
L106
L107
C110
RFS101
L802
C878
ZD8000
U7026
RFS100
R100
C119
R808
L807
R866
R867
C841
L808
TP_UB0
TP_UB1
R5108
C883
C843
C844
R811
R5099
HDC7000
R414
C442
C441
D7003
C7118
TP7023
C7202
R7018
TP5002
C6074
C7080
R5040
C6077
C6025
C6094
C6001
C6091
C7041
C6078
C7048
C6032
C6106
C6048
C7060
C313
C6068
C6128
C6073
C6117
C6072
C6118
L7013
C7074
C7065
C7094
OSC7000
C7067
TA7006
C7030
R5013
R5014
R5119
L911
L910
C934
R904
R903
C277
L202
C205
L211
L232
L218
C252
L119
L172
L139
C1106
L142
C108
L121
L124
F104
C1109
C177
L153
C197
C199
ZD1014
C447
C6075
C7093
C220
C278
C285
C1108
L144
L1006
C7086
R5120
C7066
C1102
C1015
C1026
OSC400
C1110
L138
C186
L141
L137
C185
C1002
C1004
ZD1017
R5097
R5098
R5017R5018
C1025
ZD1000
C430
HDC5000
BOTHHOLE7002
L1000
HDC900
C1007
ZD1016
C1014
C1010
C1000
ZD1015
C1003
U406
C484
R7000
R7001
C7228
BOTHHOLE7005
LED900
ANT200
L210
ANT400
C4001
V400
C487
L4000
C4002
C4000
C4003
U401
C418
R432
L404
L401
F401
ZD203
C282
BOTHHOLE7009
C409
V1000
V7011
C426
L249
R200
GA9000
L405
L430
C423
R430
L403
L437
L402
L436
C411
F400
R431
TP404TP405
CON300
R7035
ZD7000
C5008
R5047
V1001
R1003
ZD1008
C1016
C1017
HEA1001
CN1000
ZD1009
R1002
ZD1010ZD1011
R1001
C1001
U1001
V7006
C1012C1013
ZD1018ZD1019
BOTHHOLE7006
ANT7012
ANT7008
ANT7010
ANT7009
ANT7006
ANT7007
ANT7011
C419
TP430TP431
TP438TP439
TP437
C408
TP432
TP419
TP421
TP443
TP412TP413TP414TP415
TP427
TP416
TP417
R403
TP418
R402
U405
TP420
TP411
C421
C427
TP444
TP457TP458
C428
L406
SC6001
C416
C328
L301
R334
ZD314
L307
R345R346R347
C348
C357C358
HEA300
ZD316
C356
ZD315
TP433
TP429
TP440
C467
L421 L422
C468C469 C470
R419 R425
C471
C473
ZD301
C478
C472
TA7002
TA7004
C7172
C7122
U7020
ZD7001
C7125
C7133
C7124
C7134
C7113
C7128
C7129
C7120
C7119
C7114
ZD7002
ZD7004
C7224
TP425TP426
TP449
R410
TP442
R411
V401
L435
TP422TP423
C486
L434
R317
C368C369
ZD318
TP455TP456
C448
C450
U408
C463
C456
C464
R7021
R7049
C7155
C7150
C7146
C7148
C7156
C7151
C7153
R5036
R5037
TP7025
ANT401
R316
V402
ZD319
C322
L304
R350
C334
C367
ZD317
L305
L306
C323
C366
TP435
C449
C465
C455
C462
DEBUG_CLK
TP7008
DEBUG_IO
TP7009
8. Level 3 Repair
8-3. Flow chart of Troubleshooting.
Oscilloscope Digital Multimeter
Power Supply + driver, ESD Safe Tweezer
8960 & Spectrum Analyzer Soldering iron
Confidential and proprietary-the contents in this service guide subject to change without prior notice
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
8. Level 3 Repair
8-4-1. Power On
Mobile phone does not power on.
Yes
Check the Battery Voltage.
Is it more than 3.8V?
No
Yes
Charging the battery by TA.
If its voltage level is extremely low
(under 3.0V),
Change the battery.
Power-on the phone and check
the power-on sound
or motor Vibration.
Sound or Vibration is ok?
Check the voltage level at
R304 while pressing power
key. Is the voltage high?
Check the signal of
AP_PS_HOLD = 1.8V
No
Yes
Yes
Yes
No
No
Change the FRONT-LCD ASSY
Replace the Power key FPCB
Check the output voltage of U7002
L7000 > 0.75V, L7004 > 0.75V,
L7005 > 0.75V, U7007 > 0.75V,
L7006 > 0.75V, L7008 > 1.1V,
L7009 > 0.95V, L7010 > 1.1V,
L7011 > 1.3V, L7012 > 1.95V
L7013 > 0.75V, L7019 > 0.75V
If the output voltage is not normal,
Change the U7002.
※ Each voltage level has ±10% margin.
Check the Clock OSC7000&U7002
Is the frequency 19.2MHz?
Check the initial operation
Confidential and proprietary-the contents in this service guide subject to change without prior notice
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
Yes
Yes
END
No
Replace the OSC7000 & U7002
※ Test condition (Oscilloscope setting)
: 20.0us.div (time division)
A
8. Level 3 Repair
8-4-2. Initial
Initial Failure
Yes
Re-download latest SW on the
Re Check "Power on"
Trouble shooting process
Change UCP500
mobile phone
bnormal
Normal
Abnormal
Abnormal
Check the TCX300
(Crack, open etc.)
Check the U7002 (Crack etc)
Change PBA
Yes
END
Confidential and proprietary-the contents in this service guide subject to change without prior notice
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
8. Level 3 Repair
8-4-3-1. No Service
No service
Yes
Home screen → Phone →
Keypad → *#1234# → Check
Phone version → CP :
G955FXXXX or unkown
Yes
Check the Voltage
C7062 : 0.8V, C7063 : 1.2V
C7064 : 1.8V, C7079 : 0.75
Check the clock TCX300
Is the frequency 26MHz?
Yes
CP : G955FXXXX
Check the connection of RF coaxial cable
No
Replace the U7002
No
Replace the TCX300
Yes
Replace the UCP500
Yes
END
Confidential and proprietary-the contents in this service guide subject to change without prior notice
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
8. Level 3 Repair
8-4-3-2. SIM Part
Insert SIM card
Yes
Is SIM socket ok?
Yes
Check the SIM Voltage.
(C332,C318) = 1.8V or 2.8V?
Check the SIM RST / IO / CLK.
(SIM1 : ZD311, ZD313, ZD312)
(SIM2 : ZD308, ZD310, ZD309)
Yes
Is signal ok?
No
No
No
Replace SIM socket
Change to the new SIM card.
If it doesn`t still work SIM card after
changing
the SIM card, Check the U7002, U408
(Crack etc)
Check the UCP500 (Crack etc)
END
Yes
Confidential and proprietary-the contents in this service guide subject to change without prior notice
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
8. Level 3 Repair
8-4-4. T-Flash Part
Insert T-Flash card
Is SIM socket ok?
Yes
No
Replace SIM socket
Yes
END
Yes
Yes
No
No
Change to the new T Flash card.
If it doesn`t still work T Flash card after
changing
the T FLASH, Check the U7002
(Crack etc)
Check the UCP500 (Crack etc)
Check the T-flash Voltage.
(C331) = 3.0V?
Check the t-flash
CMD /Data/CLK.
(ZD306, ZD302, ZD300)
Is signal ok?
Confidential and proprietary-the contents in this service guide subject to change without prior notice
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
8. Level 3 Repair
8-4-5-1. Cable Charging Part
Insert / USB TA
Yes
Charging Sequence Start
VBUS_IF_5P0(C860) = 5V or 9V
Yes
Check the
CHG_IN_5P0(L809)=5V or 9V
Battery is Charging?
Yes
Yes
No
Replace SUB PBA
No
Replace U805
No
Replace U7018
END
Confidential and proprietary-the contents in this service guide subject to change without prior notice
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
8. Level 3 Repair
8-4-5-2. Wireless Charging Part (Normal/Fast)
Place Phone on Wireless charging Pad
Yes
Charging Sequence Start
VRECT(C7172) = 5V ~ 11V
No
Replace GH42-05910A
Yes
Check the VDD_WLCHG(L7015)=5V or
10V
Yes
No
No
Battery is Charging?
Yes
END
Replace U7020
Replace U7018
Confidential and proprietary-the contents in this service guide subject to change without prior notice
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
8. Level 3 Repair
8-4-6. OTG
OTG does not work
Check CHG_IN_5P0
(L809) = 5V
Yes
No
(crack, open, damaged, etc.)
Check U7018
Check VBUS_IF_5P0
(C860) = 5V
Check OTG working ?
END
Yes
Yes
Yes
No
No
Check U805
(crack, open, damaged, etc.)
Replace SUB PBA
Confidential and proprietary-the contents in this service guide subject to change without prior notice
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
8. Level 3 Repair
8-4-7-1. Sensor Hub
Sensor Hub does not work
Check the voltage
C483,C407,C413 =1.8V
Yes
No
Replace U7002
Check U400
(crack, open, etc.)
END
Yes
Abnormal
Replace U400
Yes
Confidential and proprietary-the contents in this service guide subject to change without prior notice
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
8. Level 3 Repair
8-4-7-2. Magnetic Sensor
Magnetic Sensor does not work
Yes
Check the voltage
C421 =1.8V
No
Replace U417
Check R404, R405
(I2C is OK?)
Check U405
(crack, open, etc.)
END
Yes
No
Replace U400
Yes
Abnormal
Replace U405
Yes
Confidential and proprietary-the contents in this service guide subject to change without prior notice
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
8. Level 3 Repair
8-4-7-3. 6Axis Sensor
6Axis Sensor does not work
Check the voltage
C440, C439 =1.8V
Yes
No
Replace U417
Check 6Axis
MOSI, CLK, NSS, MISO pin
(SPI is OK?)
Check U409
(crack, open, etc.)
END
Yes
No
Replace U400
Yes
Abnormal
Replace U409
Yes
Confidential and proprietary-the contents in this service guide subject to change without prior notice
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
8. Level 3 Repair
8-4-7-4. Barometer sensor
Barometer Sensor does not work
Yes
Check the voltage
C435 =1.8V
No
Replace U417
Check R404, R405
(I2C is OK?)
Check U402
(crack, open, etc.)
END
Yes
No
Replace U400
Yes
Abnormal
Replace U402
Yes
Confidential and proprietary-the contents in this service guide subject to change without prior notice
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
(
)
8. Level 3 Repair
8-4-7-5. Proximity + RGB Light sensor
Proximity + RGB Light Sensor does not work
Check the voltage
L306, C334, C367 =1.8V
Sensor’s IO voltage
Yes
No
Replace U417
Yes
Check the voltage
L305, C323 =3.3V
(Sensor’s LED voltage)
Check R404, R405
(I2C is OK?)
Check connection HEA300
Check sensor FPCB
(crack, damaged, etc.)
No
Yes
No
Yes
No
Yes
Abnormal
Replace U901
Replace U400
Reconnect HEA300
Replace Sensor FPCB
Yes
END
Confidential and proprietary-the contents in this service guide subject to change without prior notice
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
Loading...