Samsung Galaxy Tab A 7.0 (2016) (samsung-gtexswifi)
Appearance
This device runs a Downstream kernel. Some UIs will not work, and most features (3D acceleration, audio, etc.) may be broken. |
![]() gtexswifi running xfce4 | |
Manufacturer | Samsung |
---|---|
Name | Galaxy Tab A 7.0 (2016) |
Codename | samsung-gtexswifi |
Released | 2016 |
Type | tablet |
Hardware | |
Chipset | Spreadtrum SC8830 |
CPU | Quad-core 1.3 GHz Cortex-A7 |
GPU | Mali-400 MP |
Display | 800x1280 IPS LCD |
Storage | 8GB eMMC 4.5 |
Memory | 1.5GB RAM |
Architecture | armv7 |
Software | |
Original software The software and version the device was shipped with. |
Android (TouchWiz) 5.1.1 |
Extended version The most recent supported version from the manufacturer. |
Android (TouchWiz) |
postmarketOS | |
Category | downstream |
Mainline Instead of a Linux kernel fork, it is possible to run (Close to) Mainline. |
no |
pmOS kernel The kernel version that runs on the device's port. |
3.10.108 |
Unixbench score Unixbench Whetstone/Dhrystone score. See Unixbench. |
964.9 |
Device package |
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Kernel package |
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Flashing It is possible to flash the device with pmbootstrap flasher . |
Works
|
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USB Networking After connecting the device with USB to your PC, you can connect to it via telnet (initramfs) or SSH (booted system). |
Works
|
Battery Charging and battery level reporting works |
Works
|
Screen Display works. Ideally with sleep mode and brightness control. |
Works
|
Touchscreen |
Works
|
Multimedia | |
3D Acceleration |
Untested
|
Audio Audio playback, microphone, headset and buttons. |
Untested
|
Camera |
Untested
|
IR TX |
Untested
|
Connectivity | |
WiFi |
Partial
|
Bluetooth |
Untested
|
GPS |
Untested
|
Miscellaneous | |
FDE Full disk encryption and unlocking with unl0kr. |
Untested
|
USB OTG USB On-The-Go or USB-C Role switching |
Works
|
Sensors | |
Accelerometer Auto screen rotation works in desktops e.g. Phosh or Plasma Mobile |
Untested
|
Note: This page is about Spreadtrum SC8830 variants of Samsung Galaxy Tab A 7.0 (2016) (samsung-gtexswifi). |
This tablet requires a 512-byte header prepended to boot.img before it will even attempt to boot. This header is the letters "DHTB" followed by 508 NULL bytes. boot-deploy!67 |
Supported Models
SM-T280 and SM-T280Q
Contributors
- Zocker1012
- 19atlas
Users owning this device
- 19atlas (Notes: SM-T280, no problem while booting, needs u-boot)
- Grgergo
- Marshift
- Miguelzinn0132
How to enter flash mode
Press
+ +Installation
We recommend using twrp
After installing twrp, run:
$ pmbootstrap init
$ pmbootstrap install
$ pmbootstrap flasher flash_rootfs # flash SYSTEM
$ pmbootstrap flasher flash_kernel # flash boot.img
How to start ssh
ignore warnings
$ ip a # see device
$ sudo ip link set dev enp0s20u<CHANGEME> address 12:12:12:12:12:12
$ ssh user@172.16.42.1
Other
Unixbench results
BYTE UNIX Benchmarks (Version 5.1.3)
System: samsung-gtexswifi: Linux
OS: Linux -- 3.10.108 -- #1-postmarketOS SMP PREEMPT Tue Jul 23 11:07:54 UTC 2024
Machine: armv7l (unknown)
Language: en_US.utf8 (charmap=, collate=)
CPU 0: ARMv7 Processor rev 5 (v7l) (0.0 bogomips)
CPU 1: ARMv7 Processor rev 5 (v7l) (0.0 bogomips)
CPU 2: ARMv7 Processor rev 5 (v7l) (0.0 bogomips)
CPU 3: ARMv7 Processor rev 5 (v7l) (0.0 bogomips)
19:38:36 up 1 min, 0 user, load average: 1.69, 0.72, 0.27; runlevel
------------------------------------------------------------------------
Benchmark Run: Mon Jul 29 2024 19:38:36 - 19:43:18
4 CPUs in system; running 1 parallel copy of tests
Dhrystone 2 using register variables 3187624.6 lps (10.0 s, 7 samples)
Double-Precision Whetstone 1200.4 MWIPS (10.1 s, 7 samples)
System Benchmarks Partial Index BASELINE RESULT INDEX
Dhrystone 2 using register variables 116700.0 3187624.6 273.1
Double-Precision Whetstone 55.0 1200.4 218.2
========
System Benchmarks Index Score (Partial Only) 244.2
------------------------------------------------------------------------
Benchmark Run: Mon Jul 29 2024 19:43:18 - 19:48:05
4 CPUs in system; running 4 parallel copies of tests
Dhrystone 2 using register variables 12555512.6 lps (10.0 s, 7 samples)
Double-Precision Whetstone 4759.2 MWIPS (10.2 s, 7 samples)
System Benchmarks Partial Index BASELINE RESULT INDEX
Dhrystone 2 using register variables 116700.0 12555512.6 1075.9
Double-Precision Whetstone 55.0 4759.2 865.3
========
System Benchmarks Index Score (Partial Only) 964.9
Device WIP mainline kernel
Wifi
wifi service in lineageos wpa_supplicant.conf
# WiFi
BOARD_WPA_SUPPLICANT_DRIVER := NL80211
WPA_SUPPLICANT_VERSION := VER_2_1_DEVEL
BOARD_WPA_SUPPLICANT_PRIVATE_LIB := lib_driver_cmd_sprdwl
BOARD_HOSTAPD_DRIVER := NL80211
BOARD_HOSTAPD_PRIVATE_LIB := lib_driver_cmd_sprdwl
BOARD_WLAN_DEVICE := sc2341
WIFI_DRIVER_FW_PATH_PARAM := "/data/misc/wifi/fwpath"
WIFI_DRIVER_FW_PATH_STA := "sta_mode"
WIFI_DRIVER_FW_PATH_P2P := "p2p_mode"
WIFI_DRIVER_FW_PATH_AP := "ap_mode"
WIFI_DRIVER_MODULE_PATH := "/lib/modules/sprdwl.ko"
WIFI_DRIVER_MODULE_NAME := "sprdwl"
See also
- Samsung_Galaxy_Tab_A_7.0_(2016)_(samsung-gtexslte) (mostly similar device)
- pmaports!5289 Initial merge request