Lenovo Xiaoxin Pad Pro 2021 (lenovo-j716f)

From postmarketOS
Jump to navigation Jump to search
Lenovo Xiaoxin Pad Pro 2021
Lenovo Xiaoxin Pad Pro 2021 running LineageOS 18.1 GSI with Termux open showing neofetch
Lenovo Xiaoxin Pad Pro 2021 running LineageOS 18.1 GSI with Termux open showing neofetch
Manufacturer Lenovo
Name Xiaoxin Pad Pro 2021
Codename lenovo-j716f
Released 2021
Category testing
Original software ZUI 13 (Android 11)
Hardware
Chipset Qualcomm SM8250-AC Snapdragon 870
CPU Octa-core (1x3.2 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585)
GPU Adreno 650
Display 2560 x 1600 (90Hz 11.5" OLED)
Storage 128 GB
Memory 6 GB LPDDR4X
Architecture aarch64
Features
USB Networking
Flashing
Touchscreen
Display
WiFi
FDE
Mainline
Battery
3D Acceleration
Audio
Bluetooth
Camera
GPS
Unavailable
Mobile data
Unavailable
SMS
Unavailable
Calls
Unavailable
USB OTG
NFC
Unavailable
Sensors
Accelerometer
Magnetometer
Ambient Light
Proximity
Hall Effect
Barometer
Power Sensor
Misc
Keyboard
Touchpad
USB-A
HDMI/DP
Ir TX
Unavailable
TrustZone
FOSS bootloader


Contributors

Users owning this device

  • Ungeskriptet (Notes: Trying to port LineageOS; Android build system is hard to understand)


How to enter flash mode

  • EDL Mode: Hold down Volume Up, then connect the device to a computer with an USB cable.
  • Fastboot Mode: Power on the device with both Power and Volume Down buttons.
  • Recovery Mode: Boot into Fastboot mode and select recovery using the Volume/Power buttons.

Unlocking the bootloader

Note Note: You have to wait at least 8 hours after initially connecting to the Internet for Lenovo to process your serial number.
  1. Go to Settings → My Device, tap on ZUI Version until developer settings are enabled.
  2. Go to General Settings → Developer Settings and enable "OEM Unlocking".
  3. Boot into fastboot mode and connect it to a PC
  4. Take note of the serial number shown on the bootloader screen.
  5. Download your sn.img from http://cdn.zui.lenovomm.com/developer/tabletboot/(your_sn_number)/sn.img (Replace the brackets with your number in the link)
  6. Flash your sn.img with fastboot flash unlock sn.img.
  7. Unlock the bootloader with fastboot oem unlock-go

Alternatively this page can also be used to get the sn.img.

EDL Mode

The necessary loader for bkerler's EDL tool can be found in this firmware file (prog_firehose_ddr.elf).

Installation

/* Not yet */

Back to stock firmware

Linux tutorial:

  • Enter EDL Mode by powered off the tablet first, hold the Vol UP then plug the USB cable in.
  • Build the qdl tool here.
  • Download the firmware here.
  • Extract the ZIP file.
  • cd into the extracted ZIP directory
  • Execute the following command:

qdl --storage ufs --include ./ ./prog_firehose_ddr.elf ./rawprogram0.xml ./patch0.xml ./rawprogram1.xml ./patch1.xml ./rawprogram2.xml ./patch2.xml ./rawprogram3.xml ./patch3.xml ./rawprogram4.xml ./patch4.xml ./rawprogram5.xml ./patch5.xml ./rawprogram_unsparse0_fullupgrade.xml

  • After finished then the command will exit itself, force reboot the tablet by holding the Power button, you should be able to boot back into stock firmware.


See also