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WEXLER Tab 7t (wexler-qc750)

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Revision as of 03:22, 18 July 2023 by DragonX256 (talk | contribs)
WEXLER Tab 7t
Booted tablet with lxqt
Booted tablet with lxqt
Manufacturer WEXLER
Name Tab 7t
Codename wexler-qc750
Released 2012
Type tablet
Hardware
Chipset Nvidia Tegra 3 (T30L)
CPU Quad-core 1.3 GHz Cortex-A9
GPU NVIDIA ULP GeForce GPU 12 cores
Display 1280x800 IPS LCD
Storage 8 GB
Memory 1 GB DDR3L
Architecture armv7
Software
Original software Android
Original version 4.2.2
FOSS bootloader yes
postmarketOS
Category testing
Pre-built images no
Mainline yes
postmarketOS kernel 3.1.10
Unixbench Whet/Dhry score 913.4
Features
Flashing
Works
USB Networking
Works
Internal storage
No data
SD card
No data
Battery
No data
Screen
Works
Touchscreen
Works
Multimedia
3D Acceleration
No data
Audio
No data
Camera
No data
Connectivity
WiFi
No data
Bluetooth
No data
GPS
No data
NFC
No data
Modem
Calls
No data
SMS
No data
Mobile data
No data
Miscellaneous
FDE
No data
USB-A
Works
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
Barometer
No data
Power Sensor
No data
U-Boot
Primary Bootloader
Partial
Secondary Bootloader
No data
Mainline
Works
Internal Storage
Works
SD card
Works
USB Host
Works
USB Peripheral
Works
Display
Works
Buttons
Partial


Mainline status

Work in progress

Notes

  • Device SoC should be similar to SoC in Google Nexus 7 2012 and Google Nexus 7 2012 GSM
  • OTG available - full support, connect and disconnect, at least USB keyboard-mouse and USB drives partially (full USB port, working only when device connected before booting)
  • Battery charges (at least not discharges while OS work). Somehow reports status only in xfce4.
  • Device have 3G modem (not working?)
  • MiniHDMI port available (not working?)
  • I accidentally broke my touchscreen connector on the motherboard, so I'm working with wireless USB keyboard-mouse now

Tested environments

  • lxqt: works fine, can't manage to reboot or power off in UI, doing through terminal
  • xfce4: starts only with startxfce4 in console, weirdly buggy
  • console: works with connected wireless USB keyboard-mouse
  • fbkeyboard: works, can't test touchscreen

Any other UIs is not working, or I can't get them to work for now.

How to enter flash mode

Press Volume Up + Power keys, with Volume Down move selection to Fastboot Protocol, then choose it by pressing Volume Up.

Installation

We can install to sdcard now, so fastboot restrictions is now in the past.

  • pmbootstrap init with vendor wexler and codename qc750
  • pmbootstrap install --sdcard /dev/sda
  • pmbootstrap flasher flash_kernel Partition limit: 8 MB


Legacy information, about flashing directly to the device:

  • pmbootstrap flasher flash_rootfs

It's possible to flash to userdata, but fastboot limit size of images is still to figure out (possibly 800 MB).

  • pmbootstrap flasher flash_rootfs --partition userdata
  • fastboot format system

Contributors

Maintainer(s)

Users owning this device

  • DragonX256 (Notes: Tegra 3 tablet, close to mainline kernel)
  • Shipa (Notes: all clips are broken, a bit quirky)


See also