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Samsung Galaxy Tab 3 8.0 (samsung-lt01)

From postmarketOS Wiki
Revision as of 19:19, 7 April 2019 by Knuxify (talk | contribs) (wifi info)
Warning WARNING: This device is not recommended for future use with postmarketOS due to its armhf architecture. Alpine Linux (the distribution that postmarketOS extends) pmaports#599 has been considering dropping it.
The processor of the device may support the armv7 architecture. If so, you can modify the device package and change the architecture accordingly.
Samsung Galaxy Tab 3 8.0
lt01wifi
lt01wifi
Manufacturer Samsung
Name Galaxy Tab 3 8.0
Codename samsung-lt01wifi
Released 2013
Hardware
Chipset Exynos 4212 Dual
CPU Dual-core 1.5 GHz Cortex-A9
GPU Mali-400MP4
Display 800x1280
Storage 16GB
Memory 1.5GB
Architecture armhf
Software
Original software Android 4.2.2 (Jelly Bean)
postmarketOS
Category testing
Pre-built images no
Features
Flashing
Works
USB Networking
Works
Internal storage
No data
SD card
No data
Battery
Works
Screen
Works
Touchscreen
Works
Multimedia
3D Acceleration
No data
Audio
Broken
Camera
Broken
Camera Flash
No data
Connectivity
WiFi
Broken
Bluetooth
Broken
GPS
No data
NFC
No data
Miscellaneous
FDE
No data
USB OTG
Works
HDMI/DP
No data
Sensors
Accelerometer
No data
Magnetometer
No data
Ambient Light
No data
Proximity
No data
Hall Effect
No data
Haptics
No data
Barometer
No data


Contributors

knuxfanwin8

Maintainer(s)

knuxfanwin8

How to enter flash mode

Download mode: VolDown while powering on

Recovery mode: VolUp while powering on

Installation

Flash the system with pmbootstrap flasher flash_rootfs.

Links

Device (common):

https://github.com/gr8nole/android_device_samsung_lt01-common

Device (lt01wifi):

https://github.com/gr8nole/android_device_samsung_lt01wifi

Kernel:

https://github.com/gr8nole/android_kernel_samsung_smdk4x12

Proprietary:

https://github.com/gr8nole/proprietary_vendor_samsung

WiFi (NOT WORKING)

The Galaxy Tab 3 8.0 has the same chipset as the Galaxy SIII, and the wifi module (bcm4334) is the same. However, it still doesn't work. See post below for more information: i've been trying to get this working all day but couldn't find a solution.

https://pastebin.com/tBjLCHeF

basically, I'm trying to use the i9305 firmware with my galaxy tab which shares the same chipset. I keep getting this error every time I start wpasupplicant via sudo /etc/init.d/wpa_supplicant start. What I've tried so far:

replacing the nvram with my nvram

replacing the firmware with my firmware

changing the driver from wext to wl80211 like in the initrc

setting CONFIG_WLAIBSS=y in the kernel config

rebooting

reflashing the rootfs and kernel

USB OTG

USB OTG should work out of the box. To use keyboards and mice, do sudo apk add xf86-input-keyboard xf86-input-mouse

Notes/To Do

The Tab 3 8.0 has the same chipset as the Samsung_Galaxy_SIII_LTE_(samsung-i9305) (Exynos 4412), but the SIII uses a Quad variant.

Only lt01wifi/T310 has been tested so far. I might make builds for T311 and T315 once I get T310 working.

XFCE ONLY:The device indicates when it's charging, but the actual batery percentage readings don't work.

Hardware buttons work, they just require triggerhappy on xfce. Back and menu buttons are in /dev/input/event1, home, volume and power buttons are in /dev/input/event0.

Audio should work using these instructions. The tablet uses TAB3_WM1811 as the name.

For more information about the build process, see https://mastodon.social/@knuxfanwin8/101699225884881827

See also