Jump to content

Lenovo Tab 4 10 (lenovo-tb-x304l)

From postmarketOS Wiki
Lenovo Tab 4 10
Tablet showing the splash screen
Tablet showing the splash screen
Manufacturer Lenovo
Name Tab 4 10
Codename lenovo-tb-x304l
Model TB-X304L
Released 2017
Type tablet
Hardware
Chipset Qualcomm Snapdragon 425 (MSM8917)
CPU 4x 1.4 GHz Cortex-A53
GPU Adreno 308
Display 800 x 1280 IPS LCD @ 60Hz, 16:10, 10.1"
Storage 16 GB
Memory 2 GB
Architecture aarch64
Software
Original software
The software and version the device was shipped with.
Android 7.1
Extended version
The most recent supported version from the manufacturer.
Android 8
FOSS bootloader no
postmarketOS
Pre-built images
Whether pre-built images are available here.
no
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.
3.18.140
Features
Flashing
It is possible to flash the device with pmbootstrap flasher.
Works
USB Networking
After connecting the device with USB to your PC, you can connect to it via telnet (initramfs) or SSH (booted system).
Works
Internal storage
eMMC, SD cards, UFS, ...
Untested
SD card
Also includes other external storage cards
Untested
Battery
Charging and battery level reporting works
Partial
Screen
Display works. Ideally with sleep mode and brightness control.
Partial
Touchscreen
Untested
Keyboard
Build in physical keyboard
Untested
Touchpad
Build in Touchpad
Untested
Stylus
Untested
Multimedia
3D Acceleration
Broken
Built-in DVB
TV tuner/DVB device
Untested
Audio
Audio playback, microphone, headset and buttons.
Untested
Camera
Untested
Connectivity
WiFi
Broken
Bluetooth
Untested
Ethernet
Untested
GPS
Untested
Modem
Calls
Untested
SMS
Untested
Mobile data
Untested
Miscellaneous
FDE
Full disk encryption and unlocking with unl0kr.
Untested
USB-A
Full-sized USB-A port works (Usually applicable to SBCs and laptops).
Untested
SATA/eSATA
Untested
USB OTG
USB On-The-Go or USB-C Role switching
Untested
HDMI/DP
Video and audio output with HDMI or Display Port works.
Untested
Sensors
Accelerometer
Auto screen rotation works in desktops e.g. Phosh or Plasma Mobile
Untested
Magnetometer
Sensor to measure magnetism
Untested
Ambient Light
Untested
Proximity
Untested
Hall Effect
Also known as flip cover sensor
Untested
Haptics
Untested
Barometer
Sensor to measure air pressure
Untested
Power Sensor
Sensor to monitor current, voltage and power. Not fuel gauge!
Untested

Contributors

Users owning this device

  • Ahi6 (Notes: Porting...)


Unlocking the bootloader

  • In Android, enable developer options
  • In developer options, enable OEM Unlocking
  • Reboot to bootloader (can be done via adb with adb reboot bootloader
  • Once in fastboot, run fastboot oem unlock-go from your PC.
  • The system will now reset, all your data will be lost.

How to enter flash mode

  • Fastboot: Power on the device while holding Volume Up and Power.
  • Hard reboot: Press and hold Volume Down and Power until device reboots.
  • EDL: Hold Volume Up and Volume Down while the device is booting. Can be combined with the hard reboot (holding all 3 buttons then releasing Power at the right time.)


Notes

  • Before doing anything with your device, write down your IMEI in case you'd need to use the Lenovo Rescue and Smart Assistant (EDL flashing).
  • There is a significant time gap between boot and SSH becoming available.

Hardware

The red LED

  • Turn on: echo 1 > /sys/class/leds/red/brightness
  • Turn off: echo 0 > /sys/class/leds/red/brightness

See also