HELP! How to Root Teclast T98 4G. Chip MT8752 (same that MT6752 but for tablets)

[Sercos]

Hi to all.
I have a tablet Teclast TPad P98 4G. Rom- A8H8.
There was such a problem. The image has disappeared.
The system starts. Everything on video.
https://drive.google.com/file/d/1_do...ew?usp=sharing
https://drive.google.com/file/d/1SkL...ew?usp=sharing
What could break.

Thanks.