yashsingh1/xdaforums huggingface dataset:
[Teclast X98 Air 3G] surce:
So seems that I need to go back to Android to install the new BIOS then switch back again to Windows 8.1 or how it works?
[Teclast X98 Air 3G] kinhvanhoa:
OMG.... I tried the clean installation from the Bios to Windows.... then applied the inverted camera fix again.

This time, It doesn't work at all (previously as I wrote at least the screen upside down was working but now it doesn't).

I however found an interesting thing while I attempted to apply this fix guide.

After I removed Intel HD Driver, the screen temporally appeared the right direction. Then as I reinstalled the drivers, it went back to the previous.

Getting tired of this in fact.

---------- Post added at 07:23 PM ---------- Previous post was at 07:22 PM ----------

I don't know actually. Probably someone else may help you out. I am currently working on the Dual Boot Bios not a single Windows boot system. Sorry about that.

---------- Post added at 07:38 PM ---------- Previous post was at 07:23 PM ----------

For X98 AIR II (HG6M) users:

I've just figured out this:

If you use the stock Android Rom (HG6M) available at http://www.teclast.com/tools/pad/pad.php for flashing Android on your tablet, the camera will work just fine. Please avoid, the Lite Rom on the instruction page.

However, I am still struggling with Windows Screen and Camera Upside down problem.

One problem finally went away but the other is still alive.

BTW I found the new BIOS for AIR II (December 4, 2014) on the official website of Teclast.

Since I don't understand Chinese, please someone helps me to understand the details of the upgrade, which might means a lot to the Dual Bios system. It's a BIOS update!

I also got a hunch that the Intel HD Driver on Windows 8.1 would be a key player to make the inverted screen problem.

When I uninstalled it completely, the screen came to the normal temporally.

I don't yet understand what causes the Camera problem. It's really bothering and I am a bit tired to challenge the matter. :(
[Teclast X98 Air 3G] scarbutt11:
Hey guys,

Definitelt going to pick up the air 2 with windows 8 and android preinstalled and dual booting. How is the Android rom that comes installed? Can i install a custok recovery and install another rom?

Thanks!
[Teclast X98 Air 3G] adyjob:
I would not recommend you buy this model either Air 3G or Air II. You won't know you might be the unlucky one that receive a defect unit with heating problem. Because i'm one of the unlucky guy.
[Teclast X98 Air 3G] pablostmaria:
I am owner of another Air II with heating problems, do you think there will be a firmware update that solve our problems? If not I am managing with banggood to take my money back.
[Teclast X98 Air 3G] Estiui:
Guys, I'm about to receive my Air II with preinstalled Windows 8.1, and I'm reading you talking about heating problems... Could you precise which are these problems and what is causing them? I'm getting a bit scared with that...
[Teclast X98 Air 3G] adyjob:
After i get the heating issue on my tablet, I already start contact my seller at Aliexpress and at the same time i also try to reach Teclast support team. At last they respond. Below is the link for those who like me waiting for the solution of cannot play 3D Games.

http://www.teclast.com/en/Information/008.html

We have to wait for a while for the solution.

---------- Post added at 10:29 PM ---------- Previous post was at 10:13 PM ----------

The most critical problem on this tablet is you cannot play most of the 3D Games especially those heavy 3D Games. Once you play, within 1 to 2 minutes the tablet will froze. You have to long press the "power button" to shutdown the tablet and reboot it. so far for me with all my test, beside playing 3D Games is not Ok others are fine. Watching video, browsing internet, listen music are all ok without any problem.

My tablet model is Teclast X98 Air II (HG6M)

I had install a CPU Temperature apps to monitor my tablet. Without playing any game and leave the tablet alone, the CPU temp is already at 48C-50C. Once i play any 3D games, the CPU temp will quckly raise up to 60C, and while i continue the game the CPU will quickly raise up to 64C, 65C & 66C within 30 second. Then the tablet will hang/froze.

For your information, i had tested with few games as below and the time of play before hang/froze:-

1. Real Racing 3 (can play around 45 second)

2. Beach Buggy Blitz ( 1 minute plus)

3. Subway Surfer ( 6 minutes)

4. Temple Run 2 ( 5 minutes)

5. Frontline Commando 2 ( 1 minute plus)

I order the tablet on end of November 2014 and at 4th December 2014, Teclast release a new bios for (HG6M). So i did flash the new bios but it does not help at all. I still having the froze problem. But one thing is improving on the new bios, my cpu temperature is lower then before. Before was 48C-50C without do anything. But now is around 41C-43C.
[Teclast X98 Air 3G] Estiui:
Thanks for your answer. Did your tablet come with Android or with W8.1? Could the OS be related to those heating problems?
[Teclast X98 Air 3G] adyjob:
I bought the tablet with Android 4.4.4. I'm not very sure whether this happen to Win8.1 . Maybe someone in the XDA could give some idea.

---------- Post added at 11:47 PM ---------- Previous post was at 11:41 PM ----------

Is your tablet come with Android or win8.1?
[Teclast X98 Air 3G] pablostmaria:
Air II heating problems

Mi tablet come with Android 4.2.2, i have experienced the heating problems all the time, with Android 4.2.2 or 4.4.4, i upgraded the firmware (my tablet is HG5N) and nothing gets better. I have problems with 3D gaming and watching video on streaming apps like Plex, but if i watch the video from local storage (1080p video quality) everything is ok, i dont understand anything. I am talking with banggood post sales for a solution...
[Teclast X98 Air 3G] ripwind:
I've also noticed the black screen issue when playing 3D games. I have found one interesting item of note, however. It seems to only happen when I am plugged in/charging the device. I have yet to have it happen when I am not plugged in. Could be a coincidence, but maybe not.
[Teclast X98 Air 3G] molotolo:
Same here
[Teclast X98 Air 3G] tirmey:
Teclast knows about our problems. That's a start...

Thank you guys!
[Teclast X98 Air 3G] adyjob:
Since you have the same problem, is your tablet come with Android as well? I just want to gather some information is only Android have problem or win8,1 also have the same problem?
[Teclast X98 Air 3G] tirmey:
Yes! Android 4.4.4...
[Teclast X98 Air 3G] 25gee:
I have just installed dual boot bios on my HG6M and will look into checking temperatures against those reported by the Dec 4 bios and see if there is any noticeable difference.
[Teclast X98 Air 3G] adyjob:
I did that too! from my testing, i found the cpu temperature is lower then before. I can say there is a little improvement only, most of the heavy 3D games still unable to play. For example, the Subway Surfer previously before flash the bios i only able to play for 6 minutes. Now after the flash bios i play for 30 minutes the games still playable. Others are still in testing and will report later.
[Teclast X98 Air 3G] 25gee:
Not able to give you a report right now as I'm not by the tablets, I will say however the only issue I currently have is with Windows battery drain (basically draining 25-32% overnight while in sleep) I have run a powercfg /sleepreport to check and it states that nothing is using heavy CPU/Battery during this time so cannot seem to find the culprit... windows update service is disabled as are other potentially problematic services which may be keeping the system awake/busy but I'm currently at a loss.
[Teclast X98 Air 3G] SteveBP:
x98 Air II HG6M Dual Bios

Can you direct me to a link for x98 Air II Dual Bios. ??

I currently have the Windows only Bios installed. Also needed to know if I will have to go back to Android to flash the new dual bios or can it be flashed in windows???

Thanks for any help.

Steve
[Teclast X98 Air 3G] PDPR:
Bricked my tablet x98 air II

Today I have tried to load new IFWI (BIOS) from Teclast (IFWI http://dl.vmall.com/c03xavafpc) and after all the process the tablet is completely dead; No switch on, no charge, absolutely nothing....

I suppose the file "Rom_8MB_Tablet_Android.bin" was corrupted as I had to downlad it many times to get it apparently complete as download process was stopped many times.

It was installed Android 4.4.4 sw.

Any Ideas on how to fix this disaster?

Thanks in advance
[Teclast X98 Air 3G] booleano:
hi

i am interested in dual boot bios for this tablet too.

looking at Windows system properties it is reported a 1.33ghz speed.

is there a way to overclock it

thanks
[Teclast X98 Air 3G] 25gee:
If you flashed a bad bios and bricked the device I'm guessing you'd have to go with a hardware solution and re-program the device at a hardware level? not 100% sure so you'd have to ask in the air 3G post.

http://xdaforums.com/android/genera...t-9-7-2048x1536-t2913035/page347#post57635967

Were you using android initially? if you use the IFWIUpdater and point to the bin it should have been ok?

---------- Post added at 07:57 PM ---------- Previous post was at 07:54 PM ----------

http://xdaforums.com/android/genera...t-9-7-2048x1536-t2913035/page347#post57635967

Dual boot can be found here, be VERY careful to follow the instructions as I will not be held accountable if your devices should brick, I can say however that I have successfully flashed 2 Air II devices following this guide successfully and have android/windows installed on both so it is possible :)

The CPU is 1.33Ghz the Turbo boost ramps it up to 2.13Ghz when the system requires it, though with the heating issues some people experience on high end games with the 3G versions (same hardware) I would not recommend trying to overclock it at all.

The CPU will sit at 400Mhz when idle and 2.13Ghz when maxed
[Teclast X98 Air 3G] PDPR:
Yes I had just Android installed. I used IFWIupdater apk and it finished correctly (I thought) but never started again,

I'm afraid too I Have to fix with extra HW (eeprom programmer and cable), I've been seen similar iisue in a German forum (http://www.android-hilfe.de/teclast-forum/616654-teclast-x98-air-3g-windows-8-1-brick.html), but unfortunately Google didn't work very well on translation (for me),

I've been looking also for alternative site to download the Teclast firmware as the Official link of Teclast it's absolutely impossible to download, it's always interrupted. If someone know where can I find it I'll appreciate. a lot.

I'm wondering if X98 Air 3G FW could be used for Air II as the only difference seems to be the 3G module.
[Teclast X98 Air 3G] Xpedience:
Audio Drivers

I started with an Air II with Android 4.4.4 (6M)

flashed to the Windows ROM

Installed Windows 8.1 Enterprise 32-bit

all is wonderful and working well, but need the Realtek audio drivers, for some reason Windows doesn't recognize.
[Teclast X98 Air 3G] wlvtrojan:
Does anyone know how to access widgets from the stock OS? (4.4.4 v2.02)
[Teclast X98 Air 3G] tirmey:
I don't know too. That launcher sucks! Just install another launcher and you'll be fine...
[Teclast X98 Air 3G] wlvtrojan:
Ah cool! I just downloaded Nova Launcher and it's like I just got a new tablet!

The stock tUI is really terrible
[Teclast X98 Air 3G] PDPR:
Dowloading from official Teclast site

I'm not capable to download FW from Teclast as the connection is not reliable, it's stopping all the times, at least for me, Does anyone know if there's a trick on that? or alternative place to download FW for Air II?

Regards
[Teclast X98 Air 3G] zeronavigation:
I just got all the items needed for my unbrick. However haven't tried it yet until I'm sure what to do. Whenever I do I'll make a tutorial about it.
[Teclast X98 Air 3G] vgiozo:
Hey guys, has anybody found any solution for the wrong battery estimate (misrecognition of the 2nd battery cell) in Windows ?
[Teclast X98 Air 3G] 25gee:
Nothing wrong with my battery estimates as far as I can tell? using dual boot bios though, says 31,000 mwh?
[Teclast X98 Air 3G] kinhvanhoa:
INVERTED CAMERA FIX (thanks to ro11er and Hendrickson)

You can downlad the fix from this url:

Inverted Camera FIX

You need to uninstall these three devices and reboot:

Kionix KXCJ9 Accelerometer SPB

Goodix Touch HID

Intel Graphics

Then after reboot install in this order from the attachment download in above link.

Intel Graphics

Goodix Touch

kxaccel-win8-x86-dbg-intel.exe and registry

Once registry entry is done and reboot monitor will be reversed.

[/COLOR]

Very important: Do not do video drivers update or u will loose all your configuration!

Does anyone know how to change the registry at the end of the process? I tried all the process except the registry change. I don't know how important the final value change in the process is but my tablet still has the inverted camera problem on Windows (not on Android).
[Teclast X98 Air 3G] Gourock:
HG5N vs HG6M

I've been following these discussions while trying to resolve my Play Store problem. My tablet is a HG5N. After re-flashing with the package supplier by my dealer, the Play Store issue is fixed and my tablet is now a HG6M. The screen is smooth and no hints of lag.

Ian
[Teclast X98 Air 3G] PDPR:
OK. I'll appreciate a lot. I have also purchased both things.
[Teclast X98 Air 3G] zeronavigation:
Right now I'm figuring out how the items should be connected to each other.

However, i can really advise you to open the tablet with a plectrum (guitar). I damaged my tablet a bit when I tried to open it with something more sturdy, but a plectrum or other hard and narrow plastic item will do very well. Start at the plastic side on top.
[Teclast X98 Air 3G] PDPR:
In my case items for flashing have not arrived yet, I've purchased yesterday from China, so I think I'll receive by mid january. :(

I opened mine patiently with my nails running around the edge of the device.

I suppose you have to (there are some useful instructions and pictures on: http://4pda.ru/forum/index.php?showtopic=604923&st=2380#entry36074161 ):

- Install the driver for USB CH341AUSB Programmer

- Find Winbond 8 pin eeprom location on your Air II and attach the cocodrile Soic cable to Winbond respecting pin 1-8 order on two sides,

- Isolate battery power by desoldering red cable from battery.

- Look for a good Teclast Bios file, in my case: "Rom_8MB_Tablet_Android.bin" to run it with "CH341AUSB flashing Program" coming with the USB device.

- Flash it using the flash.bat command (run as administrator)

- Solder red battery cabling... and tha's all

Please enhance this steps if you succeed, as this is only what I'm interpreting from the Russian and german forum http://www.android-hilfe.de/teclast-forum/616654-teclast-x98-air-3g-windows-8-1-brick.html

Good look!
[Teclast X98 Air 3G] zeronavigation:
Hi,

Just finished it and currently Windows is installing. Will try to make a tutorial in 2 days. I just did some try and error as not everything seemed to work right away.

---------- Post added at 11:25 PM ---------- Previous post was at 11:10 PM ----------

Have the same kind of problem. The solution I had is: make sure the usb HUB powers both usb sticks. Mine had 4 ports but two (whom I used) didn't work on the tablet. Switched them to the other working two.

Other thing I did and might have lead to a solution is that I used a smaller USB stick (2GB in stead of 4GB) for the WINPE files.

Hopefully this is helpful. You can message me if you want (I'm dutch as well)
[Teclast X98 Air 3G] PDPR:
Super! I'm looking forward your tutorial, thanks,
[Teclast X98 Air 3G] jcespi2005:
Just made a Lite ROM with HG6M base:

http://xdaforums.com/showpost.php?p=57695080&postcount=3605

Only PreRoot not wirking for now, but Play is working fine, and no chinesse apps ;)

Cheers
[Teclast X98 Air 3G] adyjob:
1. Is this ROM support Teclast X98 Air II?

2. Any guide how to flash this ROM?

3. After flash this ROM, do i still able to get OTA update?
[Teclast X98 Air 3G] jcespi2005:
1. Ye, build from HG6M base

2. Use manufacturing, this ROM was built for dual boot, but can be fashed for Android only systems

3. Probably yes

Sent from my OnePlus One ;)
[Teclast X98 Air 3G] bedburg:
The Rom is great. I use it on my X98 air 2 (Hg6m).
[Teclast X98 Air 3G] kb_79:
How to start installation of the rom ?

Thx
[Teclast X98 Air 3G] neo_vicent:
problem to enter droidboot mode

Hi, I have bought the model HG6M with preinstalled android and I have the inverted camera problem. I fixed the pay store issue with x98 toolbox but reading the theme I found:

For X98 AIR II (HG6M) users:

I've just figured out this:

If you use the stock Android Rom (HG6M) available at .... for flashing Android on your tablet, the camera will work just fine. Please avoid, the Lite Rom on the instruction page.

I'll try to do this to fix the camera issue, following the tutorial (present in the download) but I can't enter in droidboot mode with my tablet (with tablet off press power button + vol down button). I only archieve enter in flash mode (tablet off press power button + V down + Vup) that shows in screen "Entering DnX mode...". I need help to install android new version to solve camera error, could anyone tell me how I can do this?

PD: are you recomend install win8 in this tablet?? In affiramtive case, what type of bugs presents win8?

Thanks for all
[Teclast X98 Air 3G] cc-band:
Perfect Dual Boot on Teclast X98 Air2 HG6M

For all German Users:

I tried out Dual Boot on the Teclast X98 Air2 AirII HG6M and both Android 4.4.4 and Windows 8.1 Pro (32bit!) are working great!

I hope 3D-Issue in Android will be solved soon from Teclast! www.teclast.com/en/Information/008.html

I did it this way: http://xdaforums.com/showpost.php?p=57552038&postcount=4

Android from: http://www.teclast.com/tools/pad/pad.php klick the big ">" Button, type in "HG6M" and <return>. Now You will reach the Page

with these Links to Downlod the current Single-Boot Android Bios and Android 4.4.4:

http://dl.vmall.com/c0ke0x7pr2 (Android)

http://dl.vmall.com/c03xavafpc (Newest Single-Boot Bios if needed otherwise)

Bios-Name: "X98Air3GDuala.bin" with md5sum <73e132646b379977abd70376d895face> (check this before flashing !!!) from http://pan.baidu.com/s/1sjK4Zbn

If You do not want to have any troubles in Windows as described in many threads do not use the Bing-Versions or so.

It is perfect to take a german 8.1 Pro ISO and perform a complete Installation (32bit!).

You can find Windows-Drivers here, too: http://d-h.st/S9E

Now I am trying to get Ubuntu on it ...
[Teclast X98 Air 3G] kinhvanhoa:
I have a question about your rom. Did you edit partition.tbl ?

Do I have to use yours or still need to copy and paste partition.tbl from Chinese one?

My Android OS disappeared as I installed Windows.....

Windows is now working fine but no Android this moment.
[Teclast X98 Air 3G] mtr33:
Did you run into any driver issues doing a clean install? Were all drivers detected by Windows or did you have to install some manually?
[Teclast X98 Air 3G] sunshine76:
hi guys

iam using H6gn with windows 8.1 with bing. please lead me to guide for dual booting. i can see all guide talks about air 3g or some other models.
[Teclast X98 Air 3G] cc-band:
Simply use this Package for all needed Windows 8.1 Pro drivers for the Teclast X98 Air2 HG6M:

https://mega.co.nz/#!tJdHCIAT!agSun8...G2WUJPprmTbTCs

or

http://d-h.st/S9E

WLAN and Bluetooth-Driver-Updates from here:

http://xdaforums.com/attachment.php?attachmentid=3067715&d=1418767708
[Teclast X98 Air 3G] mtr33:
Thanks for the confirmation that the driver pack is required.

FWIW: the official teclast images for both the 3G and II versions are identical, so all shared drivers seem to be the same and safe to use cross platform.
[Teclast X98 Air 3G] jcespi2005:
There are two TBL and XML, one for dual boot installations, and the other for android stock (no windows).

Your android disappeared cause you installed windows on the whole disk. Next time install windows manually and choose the correct partition and don't touch the android ones...

Sent from my OnePlus One ;)
[Teclast X98 Air 3G] rwanek:
Do you have decryption key for mega?

Also when you write about no problems with pro version, does it mean you have no problems with refresh rate and inverted camera?
[Teclast X98 Air 3G] enestu:
hi, thanks for your work,

I downloaded your repackaged rom for X98 Air 2 (X98 Air II (HG6M)_Lite_JCEspi2005.rar) but there's only one .tbl and .xml.

What modification is needed for flashing in dual boot mode ?

There's no real warranty for this chinese item for an european buyer, so, I'm little mor nervous than for moto, samsung, htc devices flashing :D

Thanks
[Teclast X98 Air 3G] cc-band:
Unfortunately I do not have this key ...

I do not remember that I needed one ... Maybe the uploader changed it a few days ago??

Refresh rate in Windows is 64hz.

Camera (Photo and Video) works correctly!
[Teclast X98 Air 3G] FEGuy:
Looks like the MEGA link for the drivers was cut off due to the way XDA truncates links.

Try this: https://mega.co.nz/#!tJdHCIAT!agSun8Wa1tOx_3tL8YMuS19j1i5wWG2WUJPprmTbTCs

or load the link from the first post of the Air 3G thread.
[Teclast X98 Air 3G] mirandaib:
As I never had a Windows OS in any tablet, it comes with the choice of changin the language, or if I install an english-version of Windows won't be able to change it into Spanish (Im Spanish)?
[Teclast X98 Air 3G] jcespi2005:
This ROM is for dual boot (just 5Gb data partition). So flash dual BIOS and this ROM as second step. Later install windows 8.1 manually (to choose the 24Gb partition free).

Three step process, bios, android and windows...

Sent from my OnePlus One ;)
[Teclast X98 Air 3G] neo_vicent:
recovery mode

Anyone can tell me how I can enter in recovery mode. My tablet version is H6GM with android.

Thanks
[Teclast X98 Air 3G] molotolo:
Anyone having problems playing video with plex ??, cause it's imposible for me, and with other streaming video apps, just playinf for 3 minutes more or less and then video starts little cuts then paused, need to close the App. I'm on Android 4.4.4 with latest update 2.05.
[Teclast X98 Air 3G] enestu:
Bricked my x98 Air II with dual boot bios

Used the bios in this link and flashed my HG5N from Android with UpdateIFWI.apk. Flashing process seems ok at the end the tablet autorestart and BOOM : black screen, no powering NADA :crying::crying::crying:

The bios md5 was ok WTF ?
[Teclast X98 Air 3G] Estiui:
Yes, you will be able to change it. I'm Spanish too and I just had to download the Spanish language packages.
[Teclast X98 Air 3G] jrwh88:
how to get windows 8.1 back after "upgrading" teclast x98 air II hg6n to Windows 10

Hi guys,

after installing windows 10 preview on my Teclast x98 Air II (HG6N) I encountered various problems / bugs which i don't want to talk about at the moment.

My real problem at the moment is getting windows 8.1 back on the device. I have tried normal iso files, i have tried the less then 8gb with the more than 6 gb method of getting windows 8.1 stock back, but windows wont launch the normal iso, and the bios wont recognize my usb sticks.

i'm at a point where I am thinking .. what the hell i'll start installing android and than flash back to windows 8.1.

I have the hg5n stock android at the ready and also have intel Mfg Tools.

Before going any further I hope you guys can tell me what is best for me to do to get the tablet into stock conditions
[Teclast X98 Air 3G] enestu:
Same result by using IFWIupdater.apk, I'm 100% sure that bios was ok (dual boot bios link provided by cc-band with checksum verified).

Probably there's a problem with IFWIupdater.apk, so be carefull with flashing dual boot bios on Air II and wait for an official solution.