Samsung Galaxy Tab A 7.0 (2016) (samsung-gtexswifi)
 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 | Android (TouchWiz) |
| Original version | 5.1.1 |
| postmarketOS | |
| Category | testing |
| Pre-built images | no |
| Mainline | no |
| postmarketOS kernel | 3.10.108 |
| Unixbench Whet/Dhry score | 964.9 |
| Flashing |
Works |
|---|---|
| USB Networking |
Works |
| Internal storage | |
| SD card | |
| Battery |
Works |
| Screen |
Works |
| Touchscreen |
Works |
| Multimedia | |
| 3D Acceleration | |
| Audio | |
| Camera | |
| Camera Flash | |
| IR TX | |
| Connectivity | |
| WiFi |
Partial |
| Bluetooth | |
| GPS | |
| NFC | |
| Modem | |
| Calls | |
| SMS | |
| Mobile data | |
| Miscellaneous | |
| FDE | |
| USB OTG |
Works |
| HDMI/DP | |
| Sensors | |
| Accelerometer | |
| Magnetometer | |
| Ambient Light | |
| Proximity | |
| Hall Effect | |
| Haptics | |
| Barometer | |
 |
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
How to enter flash mode
Press Power + Volume Up + Home Button
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