cngadget has instructions in English.
But I also found a forum thread at ZOL that has lots of images that might also be helpful [Google Translate].
What’s also interesting is that I found a Youku video following the above process. I’ve ripped it and cross-posted it to YouTube.
See it after the break.
This really helps to demystify much of the process. Note that there are two cuts. One due to confusion. One to save time. But it looks to me as if the entire process is documented.
With the new Onda V975w — with Windows already on it — available for sale soon, there’s no reason for anyone to buy a Teclast X98 3G to go through this. The guts of both machines are virtually identical. Besides, Teclast is likely to introduce a Windows-only model of the X98 3G (although it might not have the 3G part).
Teclast X98 3G: Windows Upgrade Instructions
Teclast X98 3G: Long Windows Demo Video
Teclast X98 3G Windows Files
Teclast Releases Windows For X98 3G
Teclast X98 3G Windows Firmware Beta
Teclast Offers English-Language Site
Windows Beta For Teclast X98 3G Released
Teclast X98 3G: Second Review, Second Windows Video
Teclast X98 3G: iambillbil Posts
Teclast/Onda Android To Windows: Possible Method
Teclast X98 3G: Windows 8.1 In May
Teclast X98 3G Gets A Review
Teclast X98 3G Android Tablet Running Windows 8.1
Teclast Announces New Retina Tablets