yashsingh1/xdaforums huggingface dataset:
[Teclast X98 Air 3G] capillonpub:
Hi,

Do you think it works with 256 GB micro sd too?

thanks
[Teclast X98 Air 3G] dracsirk:
For me worked iroot APP from mguyen site. After it was rooted I installed super su and replaced chineese su
[Teclast X98 Air 3G] rudivb:
I've been able to delete all Android partitions, now I have a second partition with 20GB next to my Windows C partition.

Very happy with Windows only!
[Teclast X98 Air 3G] rdkartono:
Be Careful, that is my first stupidity.. Trying to erase android, and want to occupy whole partition for windows. Later, i need to reinstall whole WIndows 8. Later, i figured front camera is not working... then everything get worse..
[Teclast X98 Air 3G] sandroj:
Try directly flashing any pre-rooted custom ROM from fastboot mode. You need to flash only system.img
[Teclast X98 Air 3G] ImJamIN:
If you look at teclast specifications, you can see that are supported microsd up to 64gb but it works with 128gb microsd.

Now, it could be work with 256gb but you should try it (at your risk)
[Teclast X98 Air 3G] CaptainAdHoc:
Which site are you refering to ?
[Teclast X98 Air 3G] dracsirk:
http://www.mgyun.com/en/GetIRoot

For me it was neccessary to click reroot
[Teclast X98 Air 3G] rudivb:
Oke thanks,

Looks like I'm lucky, no problems here.
[Teclast X98 Air 3G] darkpower2k7:
Still random freeze under windows

Guys any idea please? I still have the random freeze problem in windows 8.1. Everything is uptodate I don't see what I can do more.

Thanks
[Teclast X98 Air 3G] Ner0o1:
Dont know.

Can't answer this. Sorry.

Tested with 64 GB, 128 GB.

But go into next mediastore or else and test it before you buy one. This should be no problem. :fingers-crossed::good:

In my oppinion a 128 GB is enough. :D
[Teclast X98 Air 3G] valerima:
flash only system partition

...ability to flash only system ( data and partitions are not touched ) or full flash.

what i will get in result if flash system partiton of my c9j6 with Mireks c9j7?
[Teclast X98 Air 3G] skompa:
FYI. BIOS 1.07 still drains the battery running Win, tested on my C9J8. Beside this the front camera will not work anymore below Win 8.1. Instead of a camera OV 2860 with missing driver will be detected and shown in device manager. So I went back to BIOS 1.05, which will be the best compromise for now and reduces the issues to battery drain only.
[Teclast X98 Air 3G] damdeo:
can't boot in android

hi folks,

i had this device since 1 week. It used to be a good tablet.

yesterday i install an official update from teclast .

Today i switch to windows .

And after few hours i need to switch back to android but it's not available anymore.

After choosing android in dual boot screen, it seems to boot BUT i'm stuck to "intel inside" and nothing else .... is there anybody who knows how to boot again.

ps: i can boot in windows (with microsoft acount)
[Teclast X98 Air 3G] sandroj:
[MENTION=6592247]damdeo[/MENTION] you need to flash android again. If you have important data, you can flash only system. Otherwise flash whole android again. Read the FAQs on first page.
[Teclast X98 Air 3G] BPM:
still no lollipop ;-(
[Teclast X98 Air 3G] valerima:
flash system only

what it will change if you flash system only?

Appearance?

Chinese icons will disappear?

Something else?

What is the sense to flash system only? What pluses we would get?
[Teclast X98 Air 3G] HunterX7:
For some of you still interested on the fix with the autobrightness on android, I tried to flash the 3G version of the custom ROM (I know, that was dangerous, I don't recommend to do that), and the autobrightness wasn't there either.

We need a custom ROM based on the 3G version, as long as the problem has not been found yet.
[Teclast X98 Air 3G] MadNBG:
Hi, I got the x98 3G c9j8 in stock Rom. I got the autobrightness Problem sometimes. Not very often. I think it came with the one ota-update, i didn't realize it before.
[Teclast X98 Air 3G] azzy12:
Hi guys I'm about to pick up 2nd hand copy of this tablet, the dual OS version.

I want to re-format it and re-install windows only since I don't need android.

Is there a guide somewhere for me to do this ? And repository for latest drivers ? Anything I need to be aware of or a useful tool that I can use ?

I see tons of files here:

http://techtablets.com/teclast-x98-air-3g/downloads/

Just not sure which one to dl
[Teclast X98 Air 3G] dastimlein:
hello forum,

there are so many explanations of fixes and dfifferent tricks,

thank you so much. some of them work perfect and are very simple to use,

but ive got a question

ive got a brand new c9j6 teclast x98 air 3g wozh dual os

but im not sadisfied with the windows and android (bloadware etc...)

but i also have a working 100 legal windows 8.1 and the mirek rom

how to flash both to the tablet?

in which order?

and what do i have to flash too?

i thought i got the know-how, but i must confess, im absolutly confused.

please help, answering my questions
[Teclast X98 Air 3G] edmaronline:
Well guys, I received right now my teclast x98 air II. I bought from aliexpress the dual boot version. But when I start the tablet it goes directly to windows. Is there any button combination to open the dual boot menu or the guy sold me the wrong tablet (I bought one with dual boot).

Thanks for all help. And man.... that's a remarkble screen. More one info: My windows partitions say something like 11-14GB. :D
[Teclast X98 Air 3G] beefbones:
Wow, did you not bother reading the first few posts of this thread? Especially the parts where you are guided to convert Dual to Windows.
[Teclast X98 Air 3G] rudivb:
Hold volume up + power button.

In the dual boot menu you can check or uncheck the box in the left corner, for dual boot menu showing up.
[Teclast X98 Air 3G] azzy12:
Yes but a lot of the files on the guide have dead link,
[Teclast X98 Air 3G] edmaronline:
My friends, I have the HG8N model. Which ROM do you recomend for me? I want to keep the windows. I already have the dualboot. I am afraid to flash a wrong ROM and brick my tablet. Thanks!

I followed the Techtablets walkthrough: https://www.youtube.com/watch?v=rLjayeQJg4Q

I don't know if the Setting parameters in General properties are right for this model: I put: VID: 8087, PID: 0A65, VID: 8087, PID: 09EF.

In the tablet I have just the info "Entering Dnx mode. Waiting for fastboot command".

Nothing else.

That's it.

Thanks for all help.
[Teclast X98 Air 3G] jdotfite:
After a month of use, I have to say I am absolutely loving this tablet. I have the HG7N model and still no charging issues at all. I am also using that aliexpress hub with otg charging and the charging port still working just fine. I stay on the Windows side most of the time and I do have a small issue where the tablet will turn off after booting up. Seems to happen sporadically and almost always right after I first boot it up. I start it back up and its fine. Wondering if related to the hibernation tweak from the first page? Only noticed it after that, but could be coincidence. Anyone else having a similar issue?

I have been playing through the original Half-Life (never finished it back in the day) and it runs great on the Teclast. Getting around 70fps. I never played No One Lives Forever so I installed that as well, but I was only getting around 25fps. Found a ddraw fix for win 8.1 and its running smooth as butter now too. Using a USB switch to quickly flip my mouse and keyboard from my work PC over to the tablet for some awesome lunch break gaming.

Very happy with this purchase. Thanks for all the info in this thread!
[Teclast X98 Air 3G] valerima:
Hi, I also got same modification c9j6- looks it is the last one currently.

However I did not find confirmation that any of existing ROMs is fully compatible. Therefore you risk to have a "brick" if you use not fully compatible ROM.

One of colleagues here gave an advice to flash " system only" from Mireks ROM 3.91 for c9j7, but for me are not clear benefits of it , still..

If you wish to flash any not stock ROM you need to root your device in advance. ( I have succeeded btw).
[Teclast X98 Air 3G] Dudeonyx:
I also had this problem but it seems to have stopped after I uninstalled the various battery monitoring/stats apps I had installedinstalled at least it hasn't reoccured in the 3 weeks since
[Teclast X98 Air 3G] mangetron:
Hi,

just managed to get hold of my Air 3G yesterday, dual OS 64GB, C5J6 version.

was wondering would Mirek android rom work on this model?

cheerios.
[Teclast X98 Air 3G] dastimlein:
Got x98 air 3g, 32gb with dual os

Is it possible to flash mirek rom without wiping the windows partition?
[Teclast X98 Air 3G] ImJamIN:
Sure, but flash system only.

Can you look at you bios 's version?

Thank you

---------- Post added at 10:22 AM ---------- Previous post was at 10:21 AM ----------

Yes. Flash system only and your Windows isn't touched.
[Teclast X98 Air 3G] dastimlein:
But i stuck at MFT

04/15/15 12:19:03.392 INFO : Ready to flash!

04/15/15 12:19:26.953 INFO : Port 0/0/1 #0: IFW flash started - SN : Baytrail174FD1A8

04/15/15 12:19:26.953 INFO : Disabling xFSTK wipe out ifwi option

04/15/15 12:19:26.953 INFO : Disabling xFSTK Misc DnX

04/15/15 12:19:35.211 WARNING: Port 0/0/1 #0: Retry IFW Flashing - Serial: Baytrail174FD1A8

04/15/15 12:19:36.211 WARNING: Port 0/0/1 #0: Retry IFW Flashing - Serial: Baytrail174FD1A8

04/15/15 12:19:37.211 ERROR : Port 0/0/1 #0: IFW flash failed - SN : Baytrail174FD1A8

then it stops
[Teclast X98 Air 3G] edmaronline:
I have the same problem here. My model is HG8N. I really would like to try mirek ROM. The teclast ROM is full of bloatware.
[Teclast X98 Air 3G] paparas64:
C9J6 dual OS air 3G 64gb

bios

core version 5.008

compliancy uefi2.3;pi 1.2

version tpad 1.05
[Teclast X98 Air 3G] FENZ-IT:
hi boys,

I have a c8j7 in wich i flash the dual boot bios 1.03, but I'm unable to boot from usb with WinPE to install win so I want to update with another version.

Can anyone suggests a dual boot bios version and where to download it?

Wich is the last dual boot version?

I can flash the c9j8 edited by merek190 on the c8j7?

thanks...

EDIT: finded answer
[Teclast X98 Air 3G] ImJamIN:
Have you installed all correct driver and software how is described on first page?

If it is so, then you can try to change usb port or to connect to usb hub
[Teclast X98 Air 3G] javikiller:
Which rom is best and newest? Thanks!!
[Teclast X98 Air 3G] mr.pants87:
so facebook decided to not work after lastest update. Said my device is no longer supported

:good:
[Teclast X98 Air 3G] dastimlein:
Installed all drivers correctly to Win7 Laptop and Win7 Desktop PC

Tried all USB Ports + 2 different USB Hubs

04/15/15 22:27:10.299 INFO : Ready to flash!
04/15/15 22:34:06.587 INFO : Port 0/0/2 #0: IFW flash started - SN : Baytrail174FD1A8
04/15/15 22:34:06.587 INFO : Disabling xFSTK wipe out ifwi option
04/15/15 22:34:06.587 INFO : Disabling xFSTK Misc DnX
04/15/15 22:34:14.809 WARNING: Port 0/0/2 #0: Retry IFW Flashing - Serial: Baytrail174FD1A8
04/15/15 22:34:15.809 WARNING: Port 0/0/2 #0: Retry IFW Flashing - Serial: Baytrail174FD1A8
04/15/15 22:34:16.809 ERROR : Port 0/0/2 #0: IFW flash failed - SN : Baytrail174FD1A8
04/15/15 22:34:41.853 INFO : Loading Flash file (C:/Users/Tim Rois/Desktop/Cheer Music 2012/flash-system_only.xml)
04/15/15 22:34:41.868 INFO : GP_Flag is set to 0x80000045
04/15/15 22:34:41.870 INFO : Ready to flash!
04/15/15 22:36:29.901 INFO : Port 0/1/3 #1: IFW flash started - SN : Baytrail174FD1A8
04/15/15 22:36:29.901 INFO : Disabling xFSTK wipe out ifwi option
04/15/15 22:36:29.902 INFO : Disabling xFSTK Misc DnX
04/15/15 22:36:38.103 WARNING: Port 0/1/3 #1: Retry IFW Flashing - Serial: Baytrail174FD1A8
04/15/15 22:36:39.103 WARNING: Port 0/1/3 #1: Retry IFW Flashing - Serial: Baytrail174FD1A8
04/15/15 22:36:40.103 ERROR : Port 0/1/3 #1: IFW flash failed - SN : Baytrail174FD1A8
04/15/15 22:37:09.520 INFO : Loading Flash file (C:/Users/Tim Rois/Desktop/Cheer Music 2012/flash-system_only.xml)
04/15/15 22:37:09.548 INFO : GP_Flag is set to 0x80000045
04/15/15 22:37:09.549 INFO : Ready to flash!
04/15/15 22:37:21.304 INFO : Port 0/1/2 #2: IFW flash started - SN : Baytrail174FD1A8
04/15/15 22:37:21.304 INFO : Disabling xFSTK wipe out ifwi option
04/15/15 22:37:21.304 INFO : Disabling xFSTK Misc DnX
04/15/15 22:37:29.506 WARNING: Port 0/1/2 #2: Retry IFW Flashing - Serial: Baytrail174FD1A8
04/15/15 22:37:30.506 WARNING: Port 0/1/2 #2: Retry IFW Flashing - Serial: Baytrail174FD1A8
04/15/15 22:37:31.506 ERROR : Port 0/1/2 #2: IFW flash failed - SN : Baytrail174FD1A8
[Teclast X98 Air 3G] azzy12:
Hello I just bought the dual boot 32gb x98 air 3g C9J8.

I want to re-install windows and remove the android partition.

I assume that this tablet does not have W8.1 pro license so I downloaded the .wim files from the dev-host site (does it matter if the file is X98 Air 3G (C9J6) Windows8.1.7z and my version is C9J8?)

So this would be my next step ? :

now since I do not need the android, do I need to follow the rest of the steps there ? (Intel Manufacturing Tools,etc).

Alternatively on the guide I see:

is there another link I can use ? the baidu link wants me to download some .exe file instead of the listed file
[Teclast X98 Air 3G] Jaylapeno:
Just received my c5j5 model, love all the support this forum provides :)
[Teclast X98 Air 3G] ImJamIN:
Make a backup of your windows driver with double driver backup
[Teclast X98 Air 3G] Jaylapeno:
Nope, I have the 32gb version.
[Teclast X98 Air 3G] FENZ-IT:
a question to [MENTION=2198172]mirek190[/MENTION]

I notice a problem using the 4 way power menu and dualboot bios (your edited c9j8 version).

When you reboot the SO selection screen is bypassed, but if you force the shootdown by holding the power button or reboot in droidboot and select power off in it, the SO selection screen appear normally.

I don't know if other have the same problem but I think you should add a "turn off device" option instead of install xposed :)
[Teclast X98 Air 3G] Kprimus:
I just received my Air 3G (C9J8). I was wondering:

1. Where do I find Mirek's rom for C9J8 or do I just use the one on the front page?

2. There are no steps on how to flash it without affecting windows. What are the steps?

3. Do I need to update the bios to flash it or only root?

4. If I repartition the Android to be smaller, would I be able to use the extra space for Windows without reinstalling Windows?

5. If I have to repartition windows to add the extra space, do I just use a .wim file to keep a genuine windows 8.1?

Many thanks
[Teclast X98 Air 3G] KYU15:
Heat sink mod

I have applied the heatsink mod to my X98 Air 3G because of the constant overheating throtting issue in Android.

Before the SoC thermocouple would get up to 65C peak (throttled), 61C load (throttled), 55 idle.

Now it gets only up to 51C peak (rare), 48C load (for most things I do), 41 idle. I have not had the thermal event warning coming up since.

I looked through the guide posted in the beginning of this thread. There are a few things to watch out for. When opening the case, it will chip away the plastic pieces, so the less times you have to open it, the better.

I didn't use any of the blue thermal pads because putting any would result in a bulge on the screen and the back cover. By trial and error I ended up not using any. In the end it's just the two pieces of Al heatsink glued on by paste and secured and insulated with Kapton tapes.

0. Purchased all parts from ebay: Kapton tape, thermal pads (no need), thermal paste, got the Al sheets from a local shop, didn't go for copper because I didn't believe it would matter that much.

Kapton tape - 1cm width , about 2 bucks, used less than 1m.

Thermals pads - 10cm x 10cm in 100 blocks, 1 dolalr / sheet - didn't actually use

Thermal paste - 4 syringes, used 2 only. 3 dollars for 4 tubes?

Al sheet - thicness 0.5mm x 2cm x 2cm, and 4.5cm x 8cm, 3 dollars for 2 of 15cm x 15cm

1. Got the back cover open using the method found on youtube.

[IMG="Back case"]http://i208.photobucket.com/albums/bb112/ckyu15/Mobile%20Uploads/IMG_20150415_220936_zps8l182het.jpg[/IMG]

2. Pull open the metal shield. Yank on the metal tape and the whole thing will come off easy. Nothing is locking, just some metal holders around the perimeter of the shield. Thermal pad was partially attached to the SoC, but pulled off the metal shield. The clearance is definitely taller than the pads, so the pads were not transfering heat to the shield.

3. Tape up all the area of the circuit board around the SoC with Kapton tape. Put thermal paste on SoC. I tried to put pads on the memory chips, but the clearance wasn't enough, the metal shield could not fit properly and it was depressing the circuitboard downwards.

4. Put 2cm x 2cm Aluminum heatsink on SoC with paste inbetween. Secure 4 corners with Kapton tape. (Do not mind the blue pads, I didn't use them eventually)

5. Smear paste on small heatsink. Put shield back, smear thermal paste on shield.

6. Place 4.5cm x 8cm Aluninum heatsink on metal shield. Secure corners with Kapton, smear paste on big heatsink, hope it will transfer something to the back case. (In picture I was testing the clearance between big heatsink & back cover. There was not enough space, so just paste.

7. Turn on the tablet at this stage and test. If everything okay, then put back the cover. Make sure you put in the volume button first, and make sure that side is done first. Otherwise it'll fall out. Test the buttons before committing to snapping the cover back in place.
[Teclast X98 Air 3G] sandroj:
To all those guys who are repeatedly asking about only flashing android ROM without touching windows, link to my post in this thread itself:

http://xdaforums.com/showthread.php?p=59973565

This method works regardless of model. Also no need to mess up with Intel manufacturing flash tool.
[Teclast X98 Air 3G] mangetron:
Thanks for this. Appreciate it a lot!
[Teclast X98 Air 3G] edmaronline:
Hi man! Thanks a lot for your kind help. But for me it does not work. I have the HG8N model. I installed the adb-setup-1.4.1.exe and all the drivers from Intel_MFG_Tool. When I connect the tablet I can see the sdcard and internal memory in my PC. But when I open the Device Manager I have a unknow device. The status is the following: Drivers for this device not installed (?!?). (Code 28). There is no compatible drivers for this device.

So, what's going on? I installed everything but My PC does not recognize the driver.

Anyone has any ideia?

I am using Windows 8.1 and I tested in one PC and in one Notebook.

Thanks for all help.
[Teclast X98 Air 3G] HDtracer:
Hey frontier, have you found any dramas with 4.4.4 apart from the mic problem?

I find 4.4.2 runs really well so I am a little hesitant to update if it introduces problems I don't have now :D
[Teclast X98 Air 3G] wugooey:
does your 3g work?

I am with Bell Canada, my 3g does not work. does your 3g work? which carrier are you with? thanks.

---------- Post added at 09:00 PM ---------- Previous post was at 08:54 PM ----------

when I connected this tablet to TV or a monitor via micro HDMI, the tablet screen is still on and external monitor merely mimics the tablet. If I want to use it a media streamer, how can I make it behave like a windows tablet, that is to display full screen on TV and as primary display? thanks.
[Teclast X98 Air 3G] BoORDeL:
Removed INF.

I'm sorry m8. thank you so much for ur effort.
[Teclast X98 Air 3G] abo.adam:
until now no chance to fix it !!! I will continue to try .

---------- Post added at 10:33 PM ---------- Previous post was at 10:28 PM ----------

how can i change the registry setting ?
[Teclast X98 Air 3G] SUMMERBREEZE:
I have lost my all hopes after your post, maybe the camera problem is solved somehow but i think air 3g display is a weaker one than air II, TOTALY A DIFFERENT HARDWARE.. But im still happy with my purchase, i will have to live with these issues :eek:
[Teclast X98 Air 3G] StardustOne:
Okay the trick to get the Android 4.4.4 flashing going:

1. copy the custom_config.ini file to the Intel Manufacturing Flash tool program files x86 folder

2. after loading the xml-file, remove the USB cable from the PC and plug it into another USB plug.

Nice, whoever has programmed this piece of crap update software should have been released from the firm, this is a real nightmare.

Such programmers should been exiled but not offered jobs at large companies.
[Teclast X98 Air 3G] Hendrickson:
I've also tried again, fresh Windows 8.1 Pro install. Same issue touch drivers still the same as my video. I think some batches have different touch revisions???
[Teclast X98 Air 3G] Killa-Bee:
I did the restart as instructed by Intel Installer.

regarding the custom.ini file, I am not following you.

I haven't seen any instruction such of, could you reference me to that procedure please?
[Teclast X98 Air 3G] HDtracer:
So right. What should be a driver install then plug your tablet in and boot into download mode turns some sort of secret handshake thing haha
[Teclast X98 Air 3G] Killa-Bee:
where do you obtain the "custom_config.ini " in the 1st place in order to copy it to the Intel flash tool directory?
[Teclast X98 Air 3G] acc007:
Good he didn't brick his hardware. Anyway, I still wonder... BoORDeL, I've found your post #334 (page 34), you wrote there is 60Hz on Windows XP 64. Did you check it or read it somewhere on teclast forum ?
[Teclast X98 Air 3G] eltigroUK:
I think you right bud. I have a similar problem except. My old original x98 air has zero lag, but my new air ii has the lag like your air 3g has.

Maybe teclast are just flinging in any digitiser to these tablets and it's pot luck.

I will be receiving 3 more air ii's soon so will report if they are better or just the same as my laggy air ii.

My original x98 air is Ipad smooth but the new air ii is very poor.
[Teclast X98 Air 3G] majkel_94:
I tought that Air II really has newer, better hardware (screen/digitizer) but now it's look like Teclast is just juggling with hardware - they propably have two batches of screen module and they put it as is.

But if so, what about BIOS and drivers? The screens are different but software is the same? Weird... :eek:
[Teclast X98 Air 3G] Frontier:
Apart from the high microphone gain, no other noticeable issues.

After extensive testing between 4.4.2 & 4.4.4 regarding the microphone issue, I can tell that: 1. It's not the kernel (both ROMs use the same kernel), 2. Audio library files for Android HAL (/system/lib/hw) are the same.

I suspect that there could be some changes to firmware blobs (/etc/firmware) but will need more time to investigate.
[Teclast X98 Air 3G] Hendrickson:
I can't explain it either but my air 3g must have a different touch digitizer in some way. Whenever I try a fresh install or camera fix the touch drivers are all messed up. Bottom half is perfect, yet the top half is reversed. 10 or so attempts following the instructions to the word.

To make it even more odd, the Teclast bing install is fine. I give up up on fixing the air 3g camera or 48hz issue. :(
[Teclast X98 Air 3G] Frontier:
All you need is the BIOS from C6J7.

BTW to add more to the confusion, there is also another Android X98 Air 3G with ID C8J7 but I don't know more about it nor it's differences with C6J6. An Android 4.4.4 ROM is available for it.
[Teclast X98 Air 3G] SUMMERBREEZE:
this is interesting

so Teclast produced 2 different Air 3G WITH 2 DIFFERENT ID... Why did they need to do that? I think they found out that the previous version was problematic and they fixed them in the new one. This sound s frustrating... :rolleyes:
[Teclast X98 Air 3G] renard01:
Hi Wugooey,

THANKS A LOT!!! You made my day!

Doing that I was able to convert the app store and I am now able to using it.

The only major remaining problem is that it forgets about my WLAN password [MENTION=2446310]every[/MENTION] reboot ... I have to re-enter it every time.

Anybody with the same problem and some hints for its solution?

regards,

Renard01