[RECOVERY] TWRP 2.8.7.0 for Onda v919 Air CH DualOS

Actually the first working version of custom recovery for Onda v919 Air CH DualOS -> TWRP 2.8.7.0.
This is the port TWRP for Teclast x98Pro provided by user Dani Basabe on this resource, for which many thanks to him, honor and respect.
All basic functions are working: touch, install, wipe, backup and restore, OTG-function (can make a backup on a flash drive) & etc.
Only no vibration feedback. I suppose it's not the worst thing in life...
With the appear of TWRP can install different system mods, for example, audio. After taking a backup copy of the system, of course.
I have to say: xposed on this device doesn't run! After installation bootloop.
Installation:
Place twrp.img in the root of internal /sdcard and run the following commands via adb shell or a terminal emulator app:

Code:

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su
dd if=/sdcard/twrp.img of=/dev/block/by-name/android_recovery

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(I described the usual and most simple way for me. With devices through adb-interface I'm working with Total Commander with the plugin. We can try to install TWRP through fastboot commands:
adb reboot bootloader
fastboot flash recovery twrp.img)
To enter in TWRP after selecting "Android" in the main boot menu, hold down volume "-" before the advent of the service menu where the volume keys select "Recovery Mode" and press the power button.
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