Official Samsung firmware SM-G3812B

OverviewSamsung SM-G3812BGalaxy S3 Slim Duos

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Model and Features
Model	SamsungSM-G3812B
Series	Galaxy S3 Slim Duos
Release Date	March, 2014
Depth	9.7 mm (0.38 in)
Size (width x height)	133 x 66 mm (5.24 x 2.60 in)
Weight	139 g (4.90 oz)
Operating System	Android Jelly Bean 4.2.2
Hardware
CPU	1.2GHz
CPU Cores	Quad-core
RAM Memory	1GB
Internal Storage	8GB
External Storage	microSD, up to 32 GB (dedicated slot)
Network and Data
Number of sim slots	1 Micro-SIM
2G network	GSM 850/900/1800/1900MHz
3G network	HSDPA 850/2100MHz
4G network	-
5G network	-
Data	GPRS/EDGE
Display
Screen size	4.52 inches, (~64.2% screen-to-body ratio)
Display Type	TFT capacitive touchscreen
Display Resolution	540 x 960 pixels, (~244 ppi density)
Display Colors	16M colors
Battery and Keyboard
Battery Capacity	Removable Li-Ion 2100 mAh
Physical keyboard	-
Interfaces
Audio output	3.5mm jack
Bluetooth	version 4.0, A2DP, EDR, aptx
DLNA	-
GPS	Yes, with A-GPS, GLONASS
Infrared port	-
NFC	-
USB	microUSB 2.0
WiFi	Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot

Region	File name	OS	Firmware	Size	Date	Downloads
TPA Panama	SM-G3812B_TPA_1_20140825205530_dso75ejb13.zip	Android Jelly Bean 4.2.2	G3812BVJUANH3	799.91 MiB	2018-08-11	130time(s)
TPA Panama	SM-G3812B_TPA_1_20140919105040_dt98e7yuyl_fac.zip	Android Jelly Bean 4.2.2	G3812BVJUANH3	801.18 MiB	2018-10-12	30time(s)
TTT Trinidad and Tobago	SM-G3812B_TTT_1_20140825205540_gtj3zamr85.zip	Android Jelly Bean 4.2.2	G3812BVJUANH3	799.91 MiB	2018-08-11	11time(s)
TTT Trinidad and Tobago	SM-G3812B_1_20150918201852_yvlpzl8i3q_fac.zip	Android Jelly Bean 4.2.2	G3812BVJUANH3	801.18 MiB	2018-10-12	20time(s)
ZTM Brazil	SM-G3812B_1_20161130105915_acdytb99f0.zip	Android Jelly Bean 4.2.2	G3812BVJUAPK1	882.16 MiB	2018-08-11	35time(s)
ZTM Brazil	SM-G3812B_1_20170121095900_mws6e764ak_fac.zip	Android Jelly Bean 4.2.2	G3812BVJUAPK1	883.43 MiB	2018-10-12	61time(s)