How to root Nextway F8s Tablet PC?
After root, here is the pre-installed app which you can remove safely:
oupeng.apk ( this is oupeng chinese version, you should download the english version if you like)
PinyinIME.apk(This is chinese input method)
I use the root explorer to remove those apps!
How to flash stock firmware on Nextway F8s?
Firmware Upgrade tools and drivers you may need