[Teclast X98 Air 3G] blackbile:
Good evening gents,

!UPDATE! 2023.01.31.

I uploaded the v2 and the v3 tool in post 89. !!!

New universal version by ionioni for restore, try that first: http://xdaforums.com/x98-air/help/baytrail-dnx-mode-bios-flashing-tool-t3295105

Before you do anything read this post: http://xdaforums.com/showpost.php?p=64792827&postcount=54

!!!This restoring methode doesn't work if you flashed 2.05b BIOS from Mirek 7.0 tool!!!

I have: Teclast X98 Air 3G - the processor: Z3735F, and the GPS not working - that is the ID:C5J8, and I got it with "BIOS 11/09/2015 14:25:40 Ver: tPAD205" This is the so called 2.05c version.

I flashed 2.02 BIOS on my c5J8 - it is BRICKED!!!

+++DON'T DO THAT+++

Thanks to ionioni we have a way to unbrick our devices (as long as they still boot into dnx).

I flashed the wrong BIOS on to my X98 Air 3G (ID: C5J8) and thought i bricked it beyond repair (except opening it up and flashing it with EEPROM Clip).

Now we have a solution to flash the DUAL BOOT - BIOS to the C5J8 through dnx mode:

WARNING: EVERYTHING YOU DO, YOU DO AT YOUR OWN RISK! Only for C5J8! Using it on other devices can HARDBRICK!!!

IMPORTANT: DO NOT CUT THE USB OR POWER AND WATCH OUT THAT THERE IS ENOUGH POWER IN THE ACCU.

1. Copy the following files into your fastboot directory on your pc:

UPDATE 2016.01.04.

New version with messages on the screen and possibility not to do the flashing in case you think it can do bad things on your tablet (100sec countdown while you can change your mind)

Ver.2

https://drive.google.com/open?id=0B1EG-i0pY3FIMnBqVUIzWHdJUDg

2. Boot the device into dnx/fastboot (pressing power and Vol+/Vol- at the same time)

3. Plug the device in via usb, open up a command prompt in your fastboot directory and type the following:

fastboot devices #Check if device is recognized

fastboot flash osloader efilinux.efi #Push Efiloader onto device

fastboot boot restore_bios_c5j8.img #restores the dual boot bios !!!I'm sorry here was a mistype before!!!

4. Wait for reboot. There are no messages during the flash. It takes between 3-5 Minutes. DO NOT FORCE REBOOT it WILL HARDBRICK! You will see what happen on the screen.

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Here is my log about miracle:

d:\Install\Teclast\Android\X98_Air_3g_android_5.0_mirek190_v7.0\data>fastboot devices

Baytrail021118DF fastboot

d:\Install\Teclast\Android\X98_Air_3g_android_5.0_mirek190_v7.0\data>fastboot flash osloader efilinux.efi

sending 'osloader' (2463 KB)...

OKAY [ 0.110s]

writing 'osloader'...

OKAY [ 0.007s]

finished. total time: 0.118s

d:\Install\Teclast\Android\X98_Air_3g_android_5.0_mirek190_v7.0\data>fastboot boot restore_bios_c5j8.img

downloading 'boot.img'...

OKAY [ 0.837s]

booting...

OKAY [ 0.003s]

finished. total time: 0.840s

d:\Install\Teclast\Android\X98_Air_3g_android_5.0_mirek190_v7.0\data>

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EDIT:

After the successfull restore there was some glitch in the tablet's behaviour - but I dont remember exactly -, so I advice, after restore boot into BIOS with Escape or Delete key AND there make "RESTORE DEFAULTS" and "SAVE CHANGES AND RESET".

Notes:

- if you have used Mirek's tool and something went bad for exapmle the Android does not start, that is not BIOS problem, particularly if the Windows running.

This restore is for the REAL BIOS failure when nothing start, the tablet only continously restarting in bootloop!

Be happy to have unbricked your BIOS. And thank ionioni !!

Sorry for my weak english.