[Android Q&A, Help & Troubleshooting] mc_seem:
The process is generally the same as for any other SP Flash Tool rom. There are several threads on XDA and on YouTube.

My apologies if you know all that, just want to recap real quick from my personal experiences.. What you need is:

#1. SP Flash Tool. I use version SP_Flash_Tool_v5.1628_Win on Windows 10.

#2. USB driver installed alongside with that SP Flash Tool. The driver MediaTek DA USB VCOM (Android) gets installed

as part of SP Flash Tool installation... There's a catch here: it seems to me there are sites that are hosting installers

infested with malware.... :D :D :D ... You'd have to find one that does not really require turning signing off, etc...

So make sure when you got your copy of the tool, scan it with Antivirus and stuff.. The digital signature enforcing

on the driver must match and will work great on Windows with digital signatures enabled.

#3. Then the next most important thing to have - is your current firmware for Teclast, flashable via SP Flash Tool.

That way if you screw it up badly with Voyo firmware, you can always revert back to your original stock.

It's not like you want to jump into traversable wormhole and never come back alive again in one piece..

Having a good backup copy of your current stuff is a must.

#4. Then using SP Flash tool, ideally, you should be able to read-back / backup your nvdata / nvram partitions.

Cause these may contain various device-specific info, like calibration for radio, MAC address, and other handy stuff..

Like some stuff that hopefully Voyo does at the factory (as other normal reputable vendors usually do)..

So you'd be able to recover these "device settings" from your own private copy of nvram partitions if needed.

#5. I am not 100% sure about the next step. But I did want and did unlock my device with fastboot oem unlock

before any subsequent mods.. why? Cause it disables trusted boot chain, so whatever you flash - would boot.

IF you don't, then if Trusted Boot is on, it would refuse to boot in various manifestations - stuck with black screen,

stuck at blue logo screen, reboots, getting to recovery with broken android, etc... You don't want to get stuck there.

So when you fastboot oem unlock (which you'd better do with your current Teclast firmware), it will surely

erase your userdata partition, all the apps installed, and it might as well erase the OEM keys, in general... like DRM

keys from RPMB and stuff.. So not sure how often you purchase content, like books, movies, etc.. I don't normally

do that on my tablets anyways (doing it elsewhere), so I don't really care about DRM keys, and losing bits of

purchase'ability :D :D .. whatever...

Finally:

- you launch the SP Flash tool

- point it to the scatter.txt file from my dump

- power your tablet OFF

- then start Upgrade mode --- SP Flash tool waits for your device to turn back on in SP Flash mode

- power your tablet ON

- USB in Windows does the ding - detecting the device and shows the MediaTek DA USB VCOM (Android) in device manager...

- progress bar starts flashing your device from 0 to 100%, takes some several minutes.

- showing big green OK in the end

- then you reset your tablet, get blue Voyo logo (it might tell that device is unlocked, ORange state, the end of the world is coming...).. just wait for 5 seconds

- then it should show the Android boot logo and it'll take 5+ minutes to optimize the apps for the first time

- then.... finally... if you see visual artifacts and GPU glitches and it works in a weird funky way.... It is then not for your panel type, sorry :o)

Get back to your old firmware backup and restore from there...

I'm in the mood today :D