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Hey there. I just want to share my recent experience with flashing windows images on a V919 Air tablet.
The reason for the reinstallation was that after a system reset in windows 10, things went wrong with the touch screen. It registered touches at completely wrong places and orientation. I tried calibrating it using the buildin windows 10 utility and it did nothing.
The step I struggled with for several days was that none of the system images downloaded from the official site was able to boot on this tablet. Eventually I stumbled upon an old web page with a 32bit windows 8.1 image and it worked. The system was then upgraded to windows 10 and everything appeared fine.
If you encountered similar diffficulties in booting the images from Onda, see if the images are 64 bit. All the ones I initially downloaded are 64 bit, and they are not recognized by this tablet. Only 32 bit UEFI files can boot. Same if you want to use some windows PE images, 32bit ones are needed.
Based on the serial number, mine is probably a V5 version of V919 Air 64 GB DualOS.
After getting no support for this tablet (not a moan about this forum) I decided it was time to sell mine on..
Lost a few pound in selling it but it was frustrating to have a device that you just could not (I never found out) restore to factory status,, I'm sure there is a recovery partition on the SSD but no idea how to activate it. Pity; there's a lot going for it.. screen was very nice.
Lesson.. buy something with at least some support..
I just bought a Lenovo Yoga.. lost for choice on support yet not expensive if you get refurb model with 12 month warranty. Anyway thanks to the host of the forum.. and adios.
V919 AIR V7 Brush tutorial _For_Android-V1.0 20150911.pdf
View File Onda Android system installation tutorial
Google Translated V919 AIR V7 Brush tutorial _For_Android-V1.0.pdf 20150911
from file : V919 AIR DualOS（64GB）_android4.4_V7_20150824.pdf
Submitter RobV Submitted 09/11/2015 Category V919 Air dual system
V919 AIR V7 Brush tutorial _For_Android-V1.0.pdf
View File V919 AIR V7 Brush tutorial _For_Android-V1.0
V919 AIR DualOS（32GB）_android4.4_V7_20150806
Onda Android system installation tutorial - Google English Translation
Submitter RobV Submitted 09/04/2015 Category V919 Air dual system