Samsung SM-A505F service manual PSPEC
1. Safety Precautions
1-1. Repair Precaution
Before attempting any repair or detailed tuning, shield the device from RF noise or static
electricity discharges.
Use only demagnetized tools that are specifically designed for small electronic repairs,
as most electronic parts are sensitive to electromagnetic forces.
Use only high quality screwdrivers when servicing products. Low quality screwdrivers can
easily damage the heads of screws.
Use only conductor wire of the properly gauge and insulation for low resistance, because of the low margin
of err or of most testing equipment.
We recommend 22-gauge twisted copper wire.
Hand-soldering is not recommended, because printed circuit boards (PCBs) can be easily
damaged, even with relatively low heat. Never use a soldering iron with a power rating of
more than 100 watts and use only lead-free solder with a melting point below 250°C (482°F).
Prior to disassembling the battery charger for repair, ensure that the AC power is disconnected.
Always use the replacement parts that are registered in the SEC system. Third-party replacement parts
may not function properly.
Confidential and pr oprietary-the c ontents in this ser vice guide subject to change wi thout prior noti ce
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
1. Safety Precautions
1-2. ESD(Electrostaticall y Sensitive Devices) Precaution
Many semiconductors and ESDs in electronic devices are particularly sensitive to static discharge and can
be easily damaged by it. We recommend protecting these components with conductive anti-stat i c bags
when you store or transport them.
Always use an anti-static strap or wristband and remove electrostatic buildup or dissipate
static electricity from your body before repairing ESDs.
Ensure that soldering irons have AC adapter with ground wires and that the ground wires are properly
connected.
Use only desoldering tools with plastic tips to prevent static discharge.
Properly shield the work environment from accidental electrostatic discharge before opening
packages containing ESDs.
The potential for static electricity discharge may be increased in low humidity environments,
such as air-conditioned rooms. Increase the airflow to the working area to decrease the
chance of accidental static electricity discharges.
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Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
2. Specification
Uplink/Downlink
869~894
925~960
1805~1880
1930~1990
Bit Period
3.692us
3.692us
3.692us
3.692us
4.615ms
4.615ms
E2(8PSK)
E2(8PSK)
E2(8PSK)
E2(8PSK)
2-1. GSM General Specification
Item GSM 850 EGSM 900 DCS1800 PCS1900
Freq. Band[MHz]
ARFCN range 128~251 0~124 & 975~1023 512~885 512~810
Tx/Rx spacing 45MHz 45MHz 95MHz 80MHz
Mod. Bit rate/
Time Slot Period/
Frame Period
Modulation
MS Power
Power Class
GSM/
EGPRS
824~849
270.833kbps
576.9us
GMSK/
8PSK
33dBm~5dBm 33dBm~5dBm 30dBm~0dBm 30dBm~0dBm
4(GMSK)
880~915
270.833kbps
576.9us
GMSK/
8PSK
4(GMSK)
1710~1785
270.833kbps
576.9us
4.615ms
GMSK/
8PSK
1(GMSK)
270.833kbps
1850~1910
576.9us
4.615ms
GMSK/
8PSK
1(GMSK)
Sensitivity -102dBm -102dBm -100dBm -100dBm
TDMA Mux 8 8 8 8
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Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
2. Specification
2-2. GSM Tx Power Class
TX Power
control level
5 33±2 dBm 5 33±2 dBm 0 30±3 dBm 0 30±3 dBm
6 31±2 dBm 6 31±2 dBm 1 28±3 dBm 1 28±3 dBm
7 29±2 dBm 7 29±2 dBm 2 26±3 dBm 2 26±3 dBm
8 27±2 dBm 8 27±2 dBm 3 24±3 dBm 3 24±3 dBm
9 25±2 dBm 9 25±2 dBm 4 22±3 dBm 4 22±3 dBm
10 23±2 dBm 10 23±2 dBm 5 20±3 dBm 5 20±3 dBm
11 21±2 dBm 11 21±2 dBm 6 18±3 dBm 6 18±3 dBm
GSM850
TX Power
control level
EGSM900
TX Power
control level
DCS1800
TX Power
control level
PCS1900
12 19±2 dBm 12 19±2 dBm 7 16±3 dBm 7 16±3 dBm
13 17±2 dBm 13 17±2 dBm 8 14±3 dBm 8 14±3 dBm
14 15±2 dBm 14 15±2 dBm 9 12±4 dBm 9 12±4 dBm
15 13±2 dBm 15 13±2 dBm 10 10±4 dBm 10 10±4 dBm
16 11±3 dBm 16 11±3 dBm 11 8±4 dBm 11 8±4 dBm
17 9±3 dBm 17 9±3 dBm 12 6±4 dBm 12 6±4 dBm
18 7±3 dBm 18 7±3 dBm 13 4±4 dBm 13 4±4 dBm
19 5±3 dBm 19 5±3 dBm 14 2±5 dBm 14 2±5 dBm
- - - - 15 0±5 dBm 15 0±5 dBm
Confidential and pr oprietary-the c ontents in this ser vice guide subject to change wi thout prior noti ce
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
2. Specification
Uplink/Downlink
2110~2170
1930~1990
869~894
925~960
Bit Period
2ms/0.667ms
2ms/0.667ms
2ms/0.667ms
2ms/0.667ms
64QAM
64QAM
64QAM
64QAM
(dBm)
2-3-1. WCDMA General Specification[SM-A505F/FN/FM]
Item WCDMA2100(B1) WCDMA1900(B2) WCDMA850(B5) WCDMA900(B8)
Freq. Band[MHz]
ARFCN range
Tx/Rx spacing 190MHz 80MHz 45MHz 45MHz
Mod. Bit rate/
Time Slot Period/
Frame Period
Modulation
MS Power
1920~1980
UL：9612~9888
DL：10562~10838
42.2Mbps(DL)
5.42Mbps(UL)
WCDMA
10ms/0.667ms
HSPA
QPSK
16QAM
25.7 ~ -49(↓) 25.7 ~ -49(↓) 25.7 ~ -49(↓) 25.7 ~ -49(↓)
1850~1910
UL：9262~9538
DL：9662~9938
42.2Mbps(DL)
5.42Mbps(UL)
WCDMA
10ms/0.667ms
HSPA
QPSK
16QAM
824~849
UL：4132~4233
DL：4357~4458
42.2Mbps(DL)
5.42Mbps(UL)
WCDMA
10ms/0.667ms
HSPA
QPSK
16QAM
880~915
UL：2712~2868
DL：2937~3088
42.2Mbps(DL)
5.42Mbps(UL)
WCDMA
10ms/0.667ms
HSPA
QPSK
16QAM
Power Class 3(max+24dBm) 3(max+24dBm) 3(max+24dBm) 3(max+24dBm)
Sensitivity -106dBm -104dBm -104dBm -103dBm
Confidential and pr oprietary-the c ontents in this ser vice guide subject to change wi thout prior noti ce
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
2. Specification
Uplink/Downlink
2110~2170
1930~1990
2110~2155
869~894
925~960
Bit Period
2ms/0.667ms
2ms/0.667ms
2ms/0.667ms
2ms/0.667ms
2ms/0.667ms
QPSK
64QAM
QPSK
64QAM
QPSK
64QAM
QPSK
64QAM
QPSK
64QAM
2-3-2. WCDMA General Specification[SM-A505G/GN/GT]
Item WCDMA2100(B1) WCDMA1900(B2) WCDMA AW S (B4) WCDMA850(B5) WCDMA900(B8)
Freq. Band[MHz]
ARFCN range
Tx/Rx spacing 190MHz 80MHz 400MHz 45MHz 45MHz
Mod. Bit rate/
Time Slot Period/
Frame Period
Modulation
MS Power
(dBm)
1920~1980
UL：9612~9888
DL：10562~10838
42.2Mbps(DL)
5.42Mbps(UL)
WCDMA
10ms/0.667ms
HSPA
16QAM
25.7 ~ -49(↓) 25.7 ~ -49(↓) 25.7 ~ -49(↓) 25.7 ~ -49(↓) 25.7 ~ -49(↓)
1850~1910
UL：9262~9538
DL：9662~9938
42.2Mbps(DL)
5.42Mbps(UL)
WCDMA
10ms/0.667ms
HSPA
16QAM
1710~1755
UL：1312~1513
DL：1537~1738
42.2Mbps(DL)
5.42Mbps(UL)
WCDMA
10ms/0.667ms
HSPA
16QAM
824~849
UL：4132~4233
DL：4357~4458
42.2Mbps(DL)
5.42Mbps(UL)
WCDMA
10ms/0.667ms
HSPA
16QAM
880~915
UL：2712~2868
DL：2937~3088
42.2Mbps(DL)
5.42Mbps(UL)
WCDMA
10ms/0.667ms
HSPA
16QAM
Power Class 3(max+24dBm) 3(max+24dBm) 3(max+24dBm) 3(max+24dBm) 3(max+24dBm)
Sensitivity -106dBm -104dBm -106dBm -104dBm -103dBm
Confidential and pr oprietary-the c ontents in this ser vice guide subject to change wi thout prior noti ce
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
2. Specification
(MHz)
(MHz)
10MHz) (dBm)
(MHz)
10MHz) (dBm)
2-4. LTE General Specification
Item
Freq. Band[MHz]
Uplink/Downlink
ARFCN range
Tx/Rx spacing
Channel Bandwidth
Modulation
MS Power (dBm) 25.7~-39(↓) 25.7~-39(↓) 25.7~-39(↓) 25.7~-39(↓)
Sensitivity(QPSK, BW
LTE Band1 LTE Band3 LTE Band5 LTE Band7
1920~1980
2110~2170
UL:18000~18599
DL:0~599
190 95 45 120
5/10/15/20 1.4/3/5/10/15/20 1.4/3/5/10 5/10/15/20
QPSK,16/64QAM
256QAM(DL only)
-96.3 -93.3 -94.3 -94.3
1710~1785
1805~1880
UL:19200~19949
DL:1200~1949
QPSK,16/64QAM
256QAM(DL only)
824~849
869~894
UL:20400~20649
DL:2400~2649
QPSK,16/64QAM
256QAM(DL only)
2500~2570
2620~2690
UL:20750~21449
DL:2750~3449
QPSK,16/64QAM
256QAM(DL only)
Item
Freq. Band[MHz]
Uplink/Downlink
ARFCN range
Tx/Rx spacing (MHz) 45 0 0 0
Channel Bandwidth
Modulation
MS Power (dBm) 25.7~-39(↓) 25.7~-39(↓) 25.7~-39(↓) 25.7~-39(↓)
Sensitivity(QPSK, BW
LTE Band8 LTE Band38 LTE Band40 LTE Band41
880~915
925~960
UL:21450-21799
DL:3450-3799
1.4/3/5/10 5/10/15/20 5/10/15/20 5/10/15/20
QPSK,16/64QAM
256QAM(DL only)
-93.3 -96.3 -96.3 -94.3
2570~2620 2300~2400 2496~2690
UL/DL:37750 ~ 38249 UL/DL:38650 ~ 39649 UL/DL:39650 ~ 41589
QPSK,16/64QAM
256QAM(DL only)
QPSK,16/64QAM
256QAM(DL only)
QPSK,16/64QAM
256QAM(DL only)
Confidential and pr oprietary-the c ontents in this ser vice guide subject to change wi thout prior noti ce
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
2. Specification
(MHz)
[SM-A505F/FN/FM]
Item
Freq. Band[MHz]
Uplink/Downlink
ARFCN range
Tx/Rx spacing (MHz) -41
Channel Bandwidth
Modulation
MS Power (dBm) 25.7~-39(↓)
Sensitivity(QPSK, BW 10MHz) (dBm) -93.3
LTE Band20
832~862
791~821
UL:24150~24449
DL:6150~6449
5/10/15/20
QPSK,16/64QAM
256QAM(DL only)
Confidential and pr oprietary-the c ontents in this ser vice guide subject to change wi thout prior noti ce
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
2. Specification
(MHz)
(MHz)
10MHz)(dBm)
[SM-A505G/GN]
Item
Freq. Band[MHz]
Uplink/Downlink
ARFCN range
Tx/Rx spacing
Channel Bandwidth
Modulation
MS Power (dBm) 25.7~-39(↓) 25.7~-39(↓) 25.7~-39(↓) 25.7~-39(↓)
Sensitivity(QPSK, BW
LTE Band2 LTE Band4 LTE Band12 LTE Band13
1850~1910
1930~1990
UL:18600~19199
DL:600~1199
80 400 30 -31
1.4/3/5/10/15/20 1.4/3/5/10/15/20 1.4/3/5/10 1.4/3/5/10
QPSK,16/64QAM
256QAM(DL only)
-94.3 -96.3 -93.3 -93.3
1710~1755
2110~2155
UL:19950~20399
DL:1950~2399
QPSK,16/64QAM
256QAM(DL only)
699~716
729~746
UL:23010~23179
DL:5010~5179
QPSK,16/64QAM
256QAM(DL only)
777~787
746~756
UL:23180~23279
DL:5180~5279
QPSK,16/64QAM
256QAM(DL only)
Item
Freq. Band[MHz]
Uplink/Downlink
ARFCN range
Tx/Rx spacing (MHz) 30 55 400
Channel Bandwidth
(MHz)
Modulation
MS Power (dBm) 25.7~-39(↓) 25.7~-39(↓) 25.7~-39(↓)
Sensitivity (QPSK, BW 10MHz)
(dBm)
LTE Band17 LTE Band28 LTE Band66
704~716
734~746
UL:23730~23849
DL:5730~5849
5/10 3/5/10/15/20 1.4/3/5/10/15/20
QPSK,16/64QAM
256QAM(DL only)
-93.3 -94.8 -95.8
703~748
758~803
UL:27210~27659
DL:9210~9659
QPSK,16/64QAM
256QAM(DL only)
1710~1780
2110~2200
UL:131972~132671
DL:66436~67335
QPSK,16/64QAM
256QAM(DL only)
Confidential and pr oprietary-the c ontents in this ser vice guide subject to change wi thout prior noti ce
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
2. Specification
(MHz)
(MHz)
10MHz)(dBm)
[SM-A505GT]
Item
Freq. Band[MHz]
Uplink/Downlink
ARFCN range
Tx/Rx spacing
Channel Bandwidth
Modulation
MS Power (dBm) 25.7~-39(↓) 25.7~-39(↓) 25.7~-39(↓) 25.7~-39(↓)
Sensitivity(QPSK, BW
LTE Band2 LTE Band4 LTE Band12 LTE Band13
1850~1910
1930~1990
UL:18600~19199
DL:600~1199
80 400 30 -31
1.4/3/5/10/15/20 1.4/3/5/10/15/20 1.4/3/5/10 1.4/3/5/10
QPSK,16/64QAM
256QAM(DL only)
-94.3 -96.3 -93.3 -93.3
1710~1755
2110~2155
UL:19950~20399
DL:1950~2399
QPSK,16/64QAM
256QAM(DL only)
699~716
729~746
UL:23010~23179
DL:5010~5179
QPSK,16/64QAM
256QAM(DL only)
777~787
746~756
UL:23180~23279
DL:5180~5279
QPSK,16/64QAM
256QAM(DL only)
Item
Freq. Band[MHz]
Uplink/Downlink
ARFCN range
Tx/Rx spacing (MHz) 30 -41 55 400
Channel Bandwidth
(MHz)
Modulation
MS Power (dBm) 25.7~-39(↓) 25.7~-39(↓) 25.7~-39(↓) 25.7~-39(↓)
Sensitivity (QPSK, BW
10MHz) (dBm)
LTE Band17 LTE Band20 LTE Band28 LTE Band66
704~716
734~746
UL:23730~23849
DL:5730~5849
5/10 5/10/15/20 3/5/10/15/20 1.4/3/5/10/15/20
QPSK,16/64QAM
256QAM(DL only)
-93.3 -93.3 -94.8 -95.8
832~862
791~821
UL:24150~24449
DL:6150~6449
QPSK,16/64QAM
256QAM(DL only)
703~748
758~803
UL:27210~27659
DL:9210~9659
QPSK,16/64QAM
256QAM(DL only)
1710~1780
2110~2200
UL:131972~132671
DL:66436~67335
QPSK,16/64QAM
256QAM(DL only)
Confidential and pr oprietary-the c ontents in this ser vice guide subject to change wi thout prior noti ce
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is stric tly prohibited.
3. Product Function
LTE: B1 / B3 / B5/ B7/ B8/ B20/ B38/ B40/ B41
LTE: B1/ B2/ B3/ B4/ B5/ B7/ B8/ B 12/ B13/ B17 / B26 / B28/ B38/ B40/ B41/ B66
LTE: B1/ B2/ B3/ B4/ B5/ B7/ B8/ B 12/ B13/ B17 B20 /B26/ B28/ B38/ B40/ B41/ B66
Other RF
GPS, Glonass, Beidou, Galileo / BT5.0 / USB 2.0 / WIFI 802.11 a/b/g/n/ac / NFC
25MP(F2.0)
RAM + ROM
RAM + ROM
RAM + ROM
RAM + ROM
Proximity Sensor, RGB Light Sensor
Ear phone: 3.5pi, 4pin
Main Function
Item
OS Android P OS V9.0
SM-A505F/FN/FM
RF
SM-A505GT
RF
SM-A505G/GN
RF
Battery
Base Band 2.3Ghz Quad + 1.7GHz Quad
GSM850 / GSM900 / DCS1800 / PCS1900
WCDMA: B1/ B2/ B5/ B8
GSM850 / GSM900 / DCS1800 / PCS1900
WCDMA: B1/ B2/ B4/ B5/ B8
GSM850 / GSM900 / DCS1800 / PCS1900
WCDMA: B1/ B2/ B4/ B5/ B8
4000mAh
Camera
Triple Camera ( 25MP(F1.7) + 5MP(F2.2) + 8MP(F2.2)) with LED Flash / Front Camera
Description
LCD 6.4", FHD+, 2340x1080
SM-A505F(SWA/SEA/MEA)
/FN/G/GT/GN
SM-A505F(SWA/SEA/MEA)/GN
SM-A505F_MEA/FN
SM-A505F_SEA/FM
Sensor
Accessory
4GB + 64GB
6GB + 64GB
4GB + 128GB
6GB + 128GB
Accelerometer, Fingerprint Sensor, Gyro Sensor, Geomagnetic Sensor, Hall Sensor,
Charger: 9V/1.67A and 5V/2.0A AFC char ging
Data cable: 3.0pi, 0.8m(USB-C)
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.
6. Level 1 Repair
※
6-1. S/W Update
6-1-1. Preparation
S/W Update program : Fenrir 5.17.xxxx
Mobile Phone
Data Cable
Settings
Data Cable : GH39-01999A
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.
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