Which, when you stop to think about it, is a bit weird. They don’t sell any tablets with this pre-installed.
Regular readers know the drill: The locked Teclast forum post [Google Translate].
Previously here:
Teclast & Remix OS
Video: Remix OS On Teclast X98 Air 3G
Teclast X98 Air 3G With Remix OS
Hi
Can this update be done by way of OTA?
Not that I know of.