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Lenovo

In testing

The tablet builds are in testing and are distributed through the Discord first. Owners who want to take part can ask there for the test image.

Device Chip Status Notes
Lenovo Legion Y700 Gen 3 (TB321FU) 8 Gen 3 In testing BOE and CSOT screens both supported
Lenovo Legion Y700 Gen 4 (TB322FC) 8 Elite In testing Chinese model only
Lenovo Legion Y700 Gen 5 (TB323FU) 8 Elite Gen 5 In testing Runs from a microSD card, switched on from Android

Installation

Tablets do not use OpenABL, which is for handhelds only. Each generation installs differently:

  • Gen 3 has no microSD slot. Flash the image to a USB drive, start it from a PC with fastboot boot using the boot image in the drive's tablet folder, then install to internal storage. This needs an unlocked bootloader.
  • Gen 4 installs the same way, and can also run from a microSD card.
  • Gen 5 runs from a microSD card and is switched on from Android. It can't be installed to internal storage. It is in early testing with a small group of testers.

Warning

Installing to internal storage replaces Android's user data. Back up Android data first.

The tablets have no built-in controls. Use touch or a Bluetooth or USB controller.

The Gen 4 copies the firmware it needs from the tablet's own Android, so do not wipe Android before the first boot.

Identifying the Gen 3 screen

The Legion Y700 Gen 3 ships with either a BOE or a CSOT screen. The boot menu has an entry for each, BOE first. A black screen means the other entry is needed: restart and select it. In Android, getprop ro.vendor.display.paneltype over ADB reports the panel, and a value of 1 means BOE.

USB drive not detected

When booting from a USB drive, the two ports share one USB controller. If the drive is not detected, use the other port.