I succeeded updating my tablet with the v1.07 firmware manually.
If you like me don’t play with Android firmware flashing every day then after installing Intel Flash Tool or the Phone Flash Tool and the related drivers then try at first updating your Android system with the GUI tool (Intel Flash Tool or Phone Flash Tool), the setting USB debugging and USB MTP (enabled by default) will need to be enabled.
If it doesn’t work then you can manually flash the firmware with fastboot command (AFAIK it is installed with one of the mentioned tools above).
1. From the file Explorer on your Windows PC when hovering above v1.07 firmware folder use shift + right click to open the context menu and you’ll be able to choose to open command prompt at the folder path.
2. Now you can enter the command “adb reboot bootloader” to reboot the tablet and enter fastboot mode. When the tablet reboot just choose Android from the boot menu and it will go to fastboot mode. Also I believe it’s possible even without running this command to enter the fastboot mode by pressing power+vol up after choosing Android from the boot menu.
3. Now you can start flashing the image files to the tablet with fastboot, I believe the bare minimum are boot.img (kernel and ramdisk) and system.img (the Android OS) but I also flashed the bootloader. At least in comparison to v1.05 the only other different files are installer.efi and loader.efi which I haven’t figured what to do with and they are not part of the update procedure in installer.cmd.
3.a. To flash the system enter the command “fastboot flash system system.img”.
3.b. To flash boot enter the command “fastboot flash boot boot.img”.
3.c And finally to flash the bootloader enter the command “fastboot flash bootloader bootloader”.
4. Now you can boot the device by pressing the power button.
Be advised that this might only work if you have Android firmware v1.05 installed. If you’ve got another version then you might need to flash the other files also. I used diff to binary compare the other files.
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