DragonTouch Y88X

The Dragon Touch is a widely available low cost tablet.

This is the second model in the Dragon Touch tablet line. The previous model is the Dragon Touch Y88 and it was succeeded by the Dragon Touch Y88X Plus.

= Identification = On the back of the device, the following is printed: Dragon Touch Y88X

The PCB has the following silkscreened on it: LIA-BB-V6.66 1970-01-01

In android, under Settings->About Tablet, you will find:
 * Model Number: Dragon Touch-Y88X
 * Build Number: astar_chiphd-eng 4.4.2 KVT49L 20150128 test-keys

= Sunxi support =

Manual build

 * For building U-Boot, use the  target.
 * The .fex file can be found in sunxi-boards as

Everything else is the same as the manual build howto.

Mainline U-Boot
For building mainline U-Boot, use the  target.

Mainline kernel
Use the  device-tree file for the mainline kernel.

= Tips, Tricks, Caveats =

FEL mode
Connect your tablet to a Linux PC using the USB cable. In order to trigger FEL mode first make sure the tablet is completely switched off. You may have to hold down the power button for ~ 10s to make sure it is really off. Then hold down the volume up button and simultaneously press the power button for ~ 5s. While still pressing the volume up button release the power button and press it again 3 times in an interval of ~ 1s. Then release both buttons.

lsusb will show a line:

Bus 001 Device 007: ID 1f3a:efe8 Onda (unverified) V972 tablet in flashing mode

sunxi-fel shows:

AWUSBFEX soc=00001667(A33) 00000001 ver=0001 44 08 scratchpad=00007e00 00000000 00000000

You may have to add

SUBSYSTEM=="usb", ATTR{idVendor}=="1f3a", MODE="0666", GROUP="plugdev"

to /etc/udev/rules/51-android.rules and restart udev in order to allow the sunxi-fel command for normal users

= Adding a serial port (voids warranty) =



Locating the UART
= Pictures =

= Also known as =

= See also =


 * Manufacturer firmware links