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Air III won't boot on USB drive

61 posts
Thanks Meter: 15
By myogui, Member on 2nd May 2016, 01:20 AM
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I'm trying to install Windows 10 on a M5C5 Air III running Guznos rom, I can't get it to boot on the USB drive.... Check the video, the sceen flashes and goes back to the bios

I've tried:

- making the USB bootable with Iso2Disc and Rufus, using GPT uefi
- on 2 different tablets
- with 2 different USB drives
- with 2 different ISO files of Windows 10 x86
- flashing bios with 2.05 version found here:
- using OTG hub and OTG cable

Anybody have an idea what I could try?

4th May 2016, 03:57 AM |#2  
OP Member
Thanks Meter: 15
After a little research, I figured my UEFI is in x64, so it couldn't boot on the usb drive because there was only the bootia32.efi in the Fs1:\EFI\BOOT\ folder. So I download Windows x64 and coppied the bootia64.efi file to efi\boot folder and it booted!!

But now I'm getting the following message.... I guess it expected the rest of the files to be x64 too. But I read on many threads that installing x64 Windows on the Air III M5C5 would brick the device.... So I'm kinda confused now :/

Anybody has an idea??

Windows boot error
4th May 2016, 07:13 PM |#3  
OP Member
Thanks Meter: 15
Or more simply: did anyone install x86 Windows on a x64 uefi Air III ?
13th December 2017, 02:40 PM |#4  
Senior Member
Flag Merchtem
Thanks Meter: 110
I realise this is a dead thread, but for posterity's sake :

do NOT try flashing an x64 iso (or an AIO windows iso), it will hard brick your device without exception.
Before installing Win10 x86 and Android, you need the M5C5 dual boot bios v1.00, there is no decent step-by-step on how to do this.
This should get you started :
3rd May 2019, 10:50 PM |#5  
Junior Member
Thanks Meter: 1
I know this is old but do you remember how did you solve the problem? I can't install the dual boot either.
5th May 2019, 02:27 PM |#6  
Senior Member
Flag Merchtem
Thanks Meter: 110
i followed the instructions to which i linked in my previous post.

But, tbh, Win10 on this device isn't worth it.
I reverted back to Android-only.
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