Conclusions: I have bought LTE multi language model on Jan19,2019.I found some problems as previous comments.I found bigger problems like the apps always crashed and had to stop. Email apps could not be attached or opened attached files.It was very important for me.It may cause by modified rom.
I decided to install eu rom and success.This rom was original from Chinese rom but translated to multi language and removed some Chinese apps.It was MIUI. 10.2 which is newest one.
It works fine like MIUI on my Mi phone.I cannot make a call by this tablet probably this tablet is not supported the phone call.SMS can be done.Camera setting is available.Email attachment can be attached or opened.And no crash found.
The product itself is good and the seller is good.I still recommend this selller.Thank you.