yashsingh1/xdaforums huggingface dataset:
[Teclast X98 Air 3G] jmglez18:
Mirek190 thanks for your new rom.

I just upgraded the previous (v6.0) and I do not restart Windows icon appears only Android. Yes you activate the

dual boot corner at the top but at the center only Android.

I do not know if Windows 10 is gone.

Any ideas or have to re-install it ?.

Thanks again for your work. Happy New Year to all.
[Teclast X98 Air 3G] mirek190:
Camera dosen't ....

---------- Post added at 05:31 PM ---------- Previous post was at 05:29 PM ----------

With dissapiring windows was problem only on v6.1 and if you installed Windows from iso image .

On v7.0 problem is fixed .

Your windows is still fine - find solution in my thread about lolipop 2 - 3 pages back .
[Teclast X98 Air 3G] gesamgr:
Hi friend happy new year ..thank you for your new rom..

I installed it all well , but I have same problem as jmglez18...

no windows icon to choose and load windows....Also I can't find the solution you mentioned...can you help?
[Teclast X98 Air 3G] mirek190:
Windows icon gone ? ( on boot menu is only android icon )

After you flashed v 7.0 ?
[Teclast X98 Air 3G] aeicell:
Which is [MENTION=2198172]mirek190[/MENTION] BIOS is working on 100% on C9Jx ?

(now I am on his latest 4.4.4 for C9Jx)

Regards,
[Teclast X98 Air 3G] jmglez18:
In the boot menu appears only on Android, the Windows has disappeared (the two appeared before choosing the system, not now).

Android v7.0 charging and works well. You can not use Windows.

Some solution or have to reinstall Windows ?.

Thank you
[Teclast X98 Air 3G] mirek190:
Strange - I tested with iso windows instalation and windows icon not dissapered ...

How you installed android v7 ?

By my tool v3 ?

With option have you chosen ?

Need more details .
[Teclast X98 Air 3G] jmglez18:
I installed with MFT and the "no wipe data" as in the past.

But I've solved searching the forum:

Booting from USB Windows OS installed. Go to repair> Advanced Options> command prompt and type "bcdboot c:\Windows" (without quotes).

In my case I solved.

I hope you serve. Thanks to all.
[Teclast X98 Air 3G] gesamgr:
YES!!! it worked also for me! thank you guys!!
[Teclast X98 Air 3G] mirek190:
O Yes - I FORGOT TO EDIT THAT FILE FOR MFT.

Better use my FLASH TOOL - is working from DnX as well like MFT.
[Teclast X98 Air 3G] Bobmclaffah:
Hi mirek190, thanks for the ROM, it works perfectly! I have a problem though with YouTube playing in 60fps, is there a fix for that. Thanks again!
[Teclast X98 Air 3G] kostas-k:
Flashed it on C9J6 and bricked it! With programmer I recovered! :)
[Teclast X98 Air 3G] mirek190:
That bios was fixed to flash ?
[Teclast X98 Air 3G] Lordof9:
I just made a 1:1 backup, nothing more. I should have said that in the post, i will edit the old post, sry.
[Teclast X98 Air 3G] Droidriven:
If I convert a baytrail tablet with 8GB internal to Windows8-10 would I also be able to boot a Linux live USB and install it in dual boot on a 32GB extsdcard?

I've done similar on PC with an external hard drive and set it to always boot from USB first by default and install grub2 on the external drive. I was wondering if a baytrail tablet could do the same.

Here is something I found discussing issues with booting Ubuntu on baytrail with UEFI

http://askubuntu.com/questions/565717/tablet-bios-uefi-wont-accept-boot-from-usb

How feasible is this with a full LM distro installed on extsd?

Or even leave android on internal instead of installing windows and set up extsd dual boot LM/android?
[Teclast X98 Air 3G] kostas-k:
I don't remember what are the changes to flash it to all devices, if you know how to fix it, I can test again.

I though that it was fixed to flash to all devices. It's ok, I have a programmer, that's why I did it.
[Teclast X98 Air 3G] blackbile:
What does it mean fixing the BIOS to flash - with detailed instruction please?
[Teclast X98 Air 3G] mirek190:
Hex edirltor - in the address 4000 bits FE FE change to FF FF - look in my flash tool to the Bacup bios folder --> there a picture .
[Teclast X98 Air 3G] QuiGonJinn37:
Huho, I think I bricked my Teclast X98 air 3G (C5J8) by flashing the 2.02 bios on it...

I installed the last Mirek 7.0 rom and lost my Windows boot so I tried to flash the 2.02 bios to recover it and now the tablet bootloop, I only see the red marking and it boot again....

I tried to access to the bios, it works, but there are no boot devices recognized.

Any idea about how to recover that ? (I made a save of of my bios before the flash so I have the working bios, i just don't know how to flash it again)
[Teclast X98 Air 3G] mirek190:
I saw someone was mentioned the same problem

IF YOU HAVE AIR 3G AT LEAST C5J8 or above NOT FLASH BIOS 2.02 OR 2.05 A /B .
[Teclast X98 Air 3G] gesamgr:
I have C5J6 ,,,which versions can I install?
[Teclast X98 Air 3G] mirek190:
All of them works fine .
[Teclast X98 Air 3G] ZeAuReLiEn:
Hi Mirek

Any plan for a fixed 7.0 version that wouldn't remove Windows from the dualboot menu ?

I would like to update, without the trouble to fix a new issue afterwards.

Thanks for your work :)
[Teclast X98 Air 3G] mirek190:
V7.0 not remove windows icon from boot menu if you are using my flashing tool v3 - that is included with the rom .
[Teclast X98 Air 3G] ZeAuReLiEn:
I did as you said and faced no issue. Thanks
[Teclast X98 Air 3G] kostas-k:
I flashed it without losing Windows 10 activation, but charging problem when turned off and Quick Restart problem (doesn't turn on after shut off) remains on my C9J6
[Teclast X98 Air 3G] TiGer37:
Hi,

I have a question. Is there an alternative kernel image file for the Teclast X98 Air II (HG9N) with the mirek190_rom_v7.0 (Android Lollipop) which has the touch force problem?

I had installed on my device the mirek190_rom_v6.0 and it was working fine for a long time. Suddenly yesterday the touch force was no longer working. So i looked here in the forum and found that this can happen and therefore you need an alternative kernel with a fix inside. Today I have tried to install the mirek190_rom_v7.0 and have found that there is a touch fix alternative kernel file (with name BOOT.7z) which contains only the files C5jx-new.img, C6Jx-new.img, C8Jx-new.img, C9Jx-new.img but no file for the HG9N. With the kernel image that come with the core version from mirek190_rom_v7.0 the touch force is still not working on my device.

Now I have installed the mirek190_rom_v5.1 (Android 4.4.4.) with the boot_touch_fixed_for_mirek190_roms.img and the touch is working again without any problem. But is this also possible for Android Lollipop with the Teclast X98 Air II HG9N which has the touch force problem?

Thanks in advance for your help
[Teclast X98 Air 3G] frabert:
How to restore my bios?

Hi Mirek190, thanks a lot for your beautifull job!

Yesterday at 16:00 (before your post!) I've flashed your v7.0 in my X98 air 3G c5j8 fully stock: first I've tried with "dirty mode": it was all ok, so I've decided to do a "clean install": ALL PERFECT!

Than, I've flashed your 2.05 bios too!

The tablet works pretty well, only some problem in reboot.

How can I restore my bios copy? I've just fixed it (4000h FE-FE -> FF-FF), but what's the easier way to restore it?

Can I sobstitute my fixed bios in place of 2-05.bin in Bios folder and flash it?

And a clarifications: why we write a FF-FF bios and get an FE-FE one?

Thanks a lot again!

frabert.
[Teclast X98 Air 3G] mirek190:
Find proper thread how to fix bios bootloop .

And why to change it that addresses ?

That addresses are FE FE when device is working and FF FF when is off -- that is iniciating startup device when address is FF FF.
[Teclast X98 Air 3G] Larterptx:
i have the same problem i've replaced all c8jx-new.img, C9Jx-new.img, etc none of them boot correctly. Any idea how to change to the alternative kernel without a boot loop?
[Teclast X98 Air 3G] phoenix10:
Sorry for double posting guys but i need your advice urgent

I just got that email from geekbuying.. (for X98 PRO dual OS)

What problem are talking about?

What i suppose to do?

Dear sir,

This*is*the*customer*service*of*geekbuying.

about*the*tablet*：*Teclast*X98*pro,*we*always*keep*touch*with*factory*manager*and*just*got*updated**news*from*them*

they*said*there*is*a*problem*of*this*machine,hence,they*need*at*least*1-2*weeks*to*solve*it*

would*you*mind*waiting*for*it*?Frankly*,there*are*still*200*customers*order*earlier*than*you*still*waiting*for*this*item*

apologize*for*those*customers*who*waiting*so*many*days,*if*you*still*willing*to*wait*,we*will*contact*us*once*we*got*news*from*the*supplier

sorry*again*for*all*inconvenience

Carrie *
[Teclast X98 Air 3G] mirek190:
For lolipop i don't have fix touch kernel ....

Try to find something on Chinese forum - I will be looking also ....
[Teclast X98 Air 3G] Nimn:
Bios problem

Dear All,

I really need your help.

I bought last year the tablet teclast x98 3g air Model C9J8 dual boot.

At start it was working excellent I had no problems.

When Win10 came out, I tried to update but due to lack of space. I followed the instructions here and installed ONLY the win10. But I kept the dual boot.

Now I wanted to reinstal Android and Win10. BUT I have few problems which I will explain and I will kindly ask for help to solve them.

I followed the instruction to dual boot. I found and downloaded the Bios as shows above, and installed the following android "X98_Air_3g_android_5.0_mirek190_v6.0-ultra-light" Which is excellent except that camera is not working.

Now I am trying to install Win10 but I cannot find a way. I do not see the 'Win" logo when I press the (Vol+ & Power button) [check attachement picture]

And when I plug a keyboard and entering the bios, i think that something is missing from the bios I have attached photos from my bios.

Tell me please what I can do to fix it

I really need both OS

Android = As telephone + hospital communication

Win10 = I use it to perform Gait analysis by connecting with OTG USB the tablet with the foot scanner and examing my patients.

PLEASE help me to solve the WIn10 installation problem
[Teclast X98 Air 3G] Mikha777:
From I can see on your screenshot Windows is not installed, so just download the Windows 10 Home 32 bit ISO file from Microsoft. Copy the ISO file to a USB drive with RUFUS and after insert USB drive in your X98, Boot your tablet and press ESC key to go in the Firmaware/Bios and select the USB Drive to boot ---> Windows Installation will Start :cowboy:
[Teclast X98 Air 3G] wallabyman:
Your USB installation media is not detected. If you use a correctly formatted USB stick you will see it in the Bios screen as a potential boot device and the Windows logo will show up on the OS selection screen.

I used a GPT and FAT32 formatted stick and copied the Win10 installation files on the stick. Jst make sure it hase the efi files and is not formatted in MBR/Legacy mode
[Teclast X98 Air 3G] panosra:
Help with Flash via the UEFI shell

Hello and Happy new Year !!

I m trying to flash the bios through the UEFI shell (with Mikha777 help topic ) but i need your help .

This is my steps .

My Usb files

- fparts

- fpt.efi

- 2.02.bin

1. Shell>map-r

'map-r' is not recognized

2. Shell>map

Opens device mapping table and i see in fs1 my usb

3. Shell>is FS1

'is ' is not recognized

4. Shell>ftp.efi

Open the ftp program.

- Press enter key to continue - f 2.02.bin

Error 200 : Invalid parameter value specified

Shell>

What am I doing wrong ?

Please help .
[Teclast X98 Air 3G] Nimn:
My dearest,

The problems solved, I was following the guide that was saying to prepare the usb stick as MBR, but when i used the GPT fat 32, everything worked out perfectly

Thanks for tip
[Teclast X98 Air 3G] zwiebug:
i also have a problem with usb installation of windows. i have the c5j8 model of air 3g, and when i use rufus to format my usb stick to gtp & ntfs, it will be detected by the tablet and i can boot from it, but then it says "bootx64.efi not found" after loading the ntfs drivers in the boot process from usb stick. of course this file cant be found because on the stick i have the file efi/booti32.efi, which is correct since i used a 32 bit iso for usb pen setup. i tried to rename the file x64.efi to i32.efi, then it says "not supported" when booting from it. i checked the windows intallation that came with the tablet, of course it says "32 bit os, 64 bit processor". why does the efi usb boot process need the x64.efi file when the tablet clearly only can handle the 32 bit version of windows and how can i fix it? i also tried gtp & fat32, but then the stick is not recognized for booting/installing in the tablet.
[Teclast X98 Air 3G] wallabyman:
Are you using the dual boot bios? If yes,go to the OS selection and select Windows. It will boot from USB and let you install Win 32bit.
[Teclast X98 Air 3G] zwiebug:
does not work :( when choosing windows in the OS selection screen, it boots the existing windows 10. but i want to reinstall windows 10. i have the setting in the dual boot bios with first boot: uefi usb stick, second boot: OS choose window, third boot: uefi OS.

i dont get it what i am doing wrong here.
[Teclast X98 Air 3G] wallabyman:
Hmm, works for me, if I choose the override option from the Bios (on the last page). And everything else sounds correct. Maybe try with different install media?

If you want to go the manual way, boot to EFI shell and execute the correct efi from your usb stick. (map, hdxyz123:, boot.efi or whatever) Or create the recovery USB from existing installation and choose clean install.
[Teclast X98 Air 3G] zwiebug:
Ok, now i used rufus to format the stick in MBR/ Fat32 and it worked! win10 setup started. that's where i fu*** up bad time. i just formated the 32gb partition that was shown in the partition list in windows setup because i wanted to freshly install windows. format didn't work, so i deleted it and then i could choose it for install. but after a few seconds it says "partition not formated for efi use" or sth like that. i shall reboot and reformat and stuff. don't know what to make out of the error message. android still boots fine, so i formated the correct partition for windows, but starting windows in the dual boot menu now brings "your pc needs repair, press windows key for uefi firmware settings". pressing the button brings a simple reboot with the same error. so windows is now f*** up. how would you reinstall windows now? i did never get the error message mentioned above with the "partition not formated for efi use" or sth like that.
[Teclast X98 Air 3G] wallabyman:
I am surprised your stick boots at all, if it has an MBR. But anyway, it is just a software question, so even if something was wrong, it can always be reinstalled.

Deleting the existing Windows partition would not have been necessary, format should have worked, but if you created a new one in the same place should be perfectly ok. I am still suspicious about the MBR thing. Maybe it did not load the correct drivers when booted via a MBR stick and did not create GPT partitions? At least it would explain why it did not want to format.

Maybe wait for other advices, but do not worry, both Windows and Android can always be fixed, as long as the Bios stays untouched.
[Teclast X98 Air 3G] Mikha777:
I think you read to fast... :silly:

You did not put a space between

map -r

You typed an i instead of an L

ls FS1

And also you typed FTP.efi instead of FPT.efi

Take your time and read twice ;)

---------- Post added at 09:48 PM ---------- Previous post was at 09:41 PM ----------

Just delete the Windows partition using my guide to Format/Resize and reinstall slowly and use the same parameters as with my WinPE to copy the ISO image of Windows 10 Home 32 bit on the USB drive.

It will work if Windows have enough place to install. :cowboy:

Guides and various links in my signature below ;)

---------- Post added at 10:04 PM ---------- Previous post was at 09:48 PM ----------

MBR for BIOS or UEFI is fine for the X98 (GPT too but it is less compatible)

More here: http://www.intowindows.com/create-uefi-bootable-usb-of-windows-10/ :cowboy:
[Teclast X98 Air 3G] panosra:
Flash via the UEFI shell
[Teclast X98 Air 3G] zwiebug:
[MENTION=3986785]Mikha777[/MENTION]

I booted the WINPE ISO and started the partition tool, there i chose the corresponding partition (disk 0, partition 22) which is about 32gb in size (the android main partition is about 20gb). also this main windows partition is stated as NTFS and located at the end of the partition list (labeled disk c:\) so i think i chose the correct one. in the partition tool, i formated it again as ntfs, then i booted the windows 10 setup stick (which i set up as GPT/NTFS in rufus, it booted fine now), and started the setup process. i can chose the partition in the setup process which is there also given as 32gb and at the end of the list. i format it which works fine, then i click "next" in order to have windows install itself there, but then i says "We couldn't create a new partition or locate an existing one. For more information, see the Setup log files."

the same error occurs when i delete the partition in the setup process, format it, and click "next". it can be formated, it can be deleted (unansigned space then) but it won't be accepted from the win setup as a partition when i click "next". it does not say "windows can not be installed on this partition" with the exclamation mark as it does with all the other smaller partitions.

any clues?

driving me nuts. i now formated the installation stick as MBR/FAT32 and i also could start the installation. i chose the 32gb win partition in windows setup, deleted it, and let windows install there on the unformated partition. it started installation/ copying files and then said "EFI system partition is not formated as NTFS, format as FAT32 and start setup again".

that doesn't even make sense!

Finally, fixed it!

For reference, i used mireks installation files to repartition the whole tablet, erasing all android and windows partitions and re-installing android. then i set up windows 10 with the remaining space that is not used by android.
[Teclast X98 Air 3G] Droidriven:
What do you guys use to flash partition tables?
[Teclast X98 Air 3G] Viva_ldi:
My dear, with the Holidays coming and coming!

Help Board:

Teclast air x98 air 3g (Bioc 2.05 rev. c5j6)

Everything worked perfectly. Stood Windows 10 x86 and Anroid X98 Air 3g android 5.0 mirek190 v 6.1.

Came back from holiday. The tablet was standing all the time on charge. Booted into Android. The touchscreen does not work.

Reset Android on version from mirek190 v 7.0 - did not help.

Here's what we have in stock:

1 - Android from mirek190 v 7.0

2 - the touchscreen in Android does not work

3 - the touchscreen on the selection screen of the operating system (Dualboot) works

4 - Windows 10 is not installed

I tried to install other boot.img (from stock official X98_Air_3G_Android_5.0_(c5j6)_V2.00_Final), just replacing them in the folder mirek190 ROM, but that didn't help me.

What can be done?
[Teclast X98 Air 3G] blackbile:
Mirek, would you please explain what does it mean in:

BIOS hexediting

"And why to change it that addresses ?

That addresses are FE FE when device is working and FF FF when is off -- that is iniciating startup device when address is FF FF."

I dont understand what is the meaning in the practice!
[Teclast X98 Air 3G] trikst3r:
Yes
[Teclast X98 Air 3G] Hendrickson:
I've used many tablets in my time. A Surface Pro 3, Surface Pro 2, Dell Venue 11 Pro, Asus T200TA, Asus 100ta. And while the Air 3G is not perfect, I think its great for the retina screen and the 4:3 screen ratio @ 9.7"

However it could be even better with little cost to Teclast if it had, a 3.5" jack whit mic support. Stop charging and discharging when connected and they did not mix and match 48hz and 60hz screens.

Performance wise, the set up is okay, but the T100ta is much faster (Even with a slower turbo) due to this soc setup having single channel ram limited to 10gb/s Vs the z3735 running dual channel 2GB ram with 17Gbs. But for the price they have to make the cutbacks. If they released a z3795 or z3775 preium model for $30-40 more it would be worth it.
[Teclast X98 Air 3G] HDtracer:
Did you setup all the intel drivers correctly and do the tablet power cycle when installing IsocUSB drivers?

Copy the custom .ini file to intel folder?

Unzip the rom to a folder and then select the flash .xml file?

Your vid and pid values are correct and applied in flash tools?

You are running flash tools as an administrator?

Sorry for all the questions, just to clear up the easy stuff first.

It is strange you cannot enter droidboot mode though.

---------- Post added at 09:24 AM ---------- Previous post was at 09:19 AM ----------

This the problem I find with just about all Chinese electronics. Like you say, for an extra $30 they could build something fantastic.

Chinese manufactures haven't quite grasped that people will pay that little bit more for a faultless product.
[Teclast X98 Air 3G] peppemaria:
Why i can't install The BIOS??
[Teclast X98 Air 3G] Hendrickson:
Check the command line, you have written it wrong there.
[Teclast X98 Air 3G] peppemaria:
And where i can wrote The BIOS? Is not specified..
[Teclast X98 Air 3G] supercowz:
open CMD ad administator !!
[Teclast X98 Air 3G] SUMMERBREEZE:
your command is wrong totaly. you must enter into the file that where FPTW exists (from command line)

also you must right click and open the cmd as administrator
[Teclast X98 Air 3G] peppemaria:
I pressed the right button and sent running the .bat file and gives me that! I should do ??

---------- Post added at 08:40 PM ---------- Previous post was at 08:37 PM ----------

help me I do not know quite what to do .. I explained well what do I do now?
[Teclast X98 Air 3G] supercowz:
not not working

get this https://www.dropbox.com/s/8tk5nyumvhikvhr/BIOS_X98_Air_3G_win_to_android by supercowz.rar?dl=0

create tmp directory in C:

extract BIOS_X98_Air_3G_win_to_android by supercowz.rar OR copy all file from BIOS_X98_Air_3G_win_to_android by supercowz. to c:\tmp

open CMD (as administrator) Right clic on CMD.exe !!!!!

then type :

1)cd c:\tmp (enter)

2)flashC8J7.bat (enter)
[Teclast X98 Air 3G] Grayie10:
thanks for that , so two questions really because I am unsure

Is it the micro sd or the bigger one , and does it have to be class 10 and why ?? Thanks grayie10
[Teclast X98 Air 3G] SUMMERBREEZE:
cos you will be playing HD and sometimes even 4K videos, records viddeos at 1080p too

thats why you should get a fast sd card.. this is my opinion, could be also class6

and its microsd, search about microsd cards on google :)
[Teclast X98 Air 3G] Hendrickson:
Doesn't have to be, but anything over is a waste. It's connected via a USB 2.0 bus. I have an ultra 64GB sandisk one that can do 80mbs write and read. And it never goes over about 23mb/s. So having a super card is not needed useless you want use it another device of course that can take advantage of that speed.
[Teclast X98 Air 3G] peppemaria:
Yeeeeees its OK!! Thanks and now i try to continue but i want your help :)
[Teclast X98 Air 3G] supercowz:
at last great !!!! now you have the right android bios for your C8J7

now follow the guide to flash android X98 air 3G C8J7 official rom ... or lite rom ....

good luck :)
[Teclast X98 Air 3G] peppemaria:
the tablet will not light! I forced shutdown as in driving and now will not turn on !!
[Teclast X98 Air 3G] supercowz:
of course you have android bios with win 8.1 installed .... you need to flash android rom

can you enter bios ? and take picture ?
[Teclast X98 Air 3G] peppemaria:
the tablet does not turn what should I do ??
[Teclast X98 Air 3G] supercowz:
can you enter the bios with usb keyboard ??

did you try Vol- vol+ and power ?

or VOL+ and power ?

show us picture or video ...
[Teclast X98 Air 3G] peppemaria:
now the tablet is turned off and does nothing !! I can not turn it on or anything! I put it on charge and see what he does !!
[Teclast X98 Air 3G] panosra:
Install Windows drivers
[Teclast X98 Air 3G] mirek190:
That mean if you Bacup your bios you have to edit that 2 bits in bios ( in address 4000 ) via some hex editor .

If you don't do then brick your device ( if you will use your Bacup bios )