I will try reflashing this one, in the hope the power drain issue could be solved, at least.
If some owner did some experiments to improve the tablet (or managed to flash some android version/custom roms from other X98 Plus II models), would be great to know.
You can install this custom firmware and root your tablet.
When you have root access you can remove the Teclast bloatware that is regularly pulling in ads/etc from the internet in the background. That might save some battery capacity.
Suprisingly, Teclast can’t “connect” to give you OTA updates but they are able to connect to update their advertising graphics file in the update application.
If you delete it, you will find that it is back again a few minutes later.
thank you very much, will root and install TWRP, waiting for some good custom rom hopefully. I’ve posted a new Phoenix OS version in the general thread of X98 Plus II, which is claimed to work on C2D4, so maybe is compatible also with C2E3.
If someone manages to download and re-upload outside of chinese servers, I will give it a shot after the twrp backup.