yashsingh1/xdaforums huggingface dataset:
[Teclast X98 Air 3G] TrampGuy:
A couple questions here - a few months back I bought the HG9M and was too timid to try and mod it in any way considering the state of these forums. I went through all the available resources (here, tachtablets...) and I must say, I still don't feel confident enough. But, I'm gonna take the risk and so I'd like to ask/confirm just a few more things hoping it will help minimize my risk of becoming another poor soul with a bricked unit :P. So:

1. Should I install a custom rom before updating bios to 2.02 or vice versa? (this issue seems to get conflicting views, or some say android should be rooted for bios flashing?)

2. The tuts I should use are all TechKnight's right? both for flashing rom and bios?

3. Regarding the last question - some use Mirek's tool for flashing the bios which looks easier? what's your take on it in contrast to TK's tuts?

I know people are sick of answering this type of questions, but believe me, I wouldn't have asked if I could find a solid answer anywhere here already.

Thanks.
[Teclast X98 Air 3G] sujeetpatwa:
Can anyone suggest me from where to buy the replacement battery for Teclast x98 3g air in india
[Teclast X98 Air 3G] articsilverfox:
Has any one tried to add a DC charge port to their device?

My father now owns my Teclast Air but the micro USB port has recently been damaged, I suspect he plugged it in wrong way around.. I think this is one of the reasons why new Teclast tablets have the 2.5mm DC port on them among the other obvious advantages.

I am thinking he doesn't ever need the USB port again and would probably just break it again, I am thinking about just replacing it with a DC jack, anyone have any suggestions on how to achieve this?

Thanks
[Teclast X98 Air 3G] siezed:
Hey i see you never got an answer, did you end up doing this? You have it all down, its hard to really mess it up as long as you don't unplug while doing something or try it with a dead battery or anything, the rest is just kinda speculation whether you should update bios from android or windows and stuff, windows was easier for me, and I had no problems. Both techknight and mireks ways work, I've used both with success, mireks is pretty much all automated iirc, might wanna just try that first.
[Teclast X98 Air 3G] TrampGuy:
Yes thanks, it all seems to work fine now. After reading all of Mirek's forum as well, I decided to take the risk and it paid off. I just flashed it yesterday, I'm planning on posting my exact steps in the following days for others to use, and maybe spare some the ordeal of going through hundreds (if not thousands) of pages.
[Teclast X98 Air 3G] alexandros_gerogiannis:
Hello everyone.After a bios flash on my C5J8 it got in bootloop where i get the following message.

Bom selection switch has been changed but cannot take action.System will reset in 3 sec.

Has anyone faced this error?

Thanks in advance.
[Teclast X98 Air 3G] siezed:
Yea that's a good idea, or at least link mireks post, tecknights tutorials and other posts that have already done that, I think this thread got a proper forum created though, and the relevant info is over there, let me go check.

Ok so yea its still pretty jumbled up, I think tecknight does a pretty good job at consolidating all the info though.
[Teclast X98 Air 3G] intre:
Hi. I've got the battery problem on Windows (quick discharge until 7% and then it keeps there) in my X98 Air II. I've tried the solution posted by OP and it did not work. I was considering in updating the old BIOS to a 2.x one just in case it helps. My problem is that my tablet is a HG9N Windows only one (W10) so I can't use the dual boot BIOS. Where can I find a Windows only BIOS and how do I update it? Would I lose my Windows 10 key by doing this?

Thanks in advance.
[Teclast X98 Air 3G] siezed:
Well I know you won't like the answer, but you just gotta learn to live with the inaccurate meter, eventually windows seems to compensate for it and you get a reading of 14400 mah and a full charge of 22200 mah (about) and the meters pretty accurate. Its not really a problem with actual use time, just the meter. As for the bios, find tecknight's tutorials and I believe he has all the bios info you need. You should have a written copy of your windows 10 key anyways, look up how to find windows 10 key then write it down or take a pic with phone and save in multiple places. That's basically a $120 code since that's what it costs to get a new copy of windows 10, and theres multiple ways to lose your windows copy where you'd need the key.
[Teclast X98 Air 3G] intre:
Yeah you are right, I don't like it but I guess I'll have to learn to live with it.

About the BIOS, I guess you mean these tutorials:

http://techtablets.com/forum/topic/tecknights-teclast-tutorials/

I did not see any Windows-only guide.

Thanks anyway. :)
[Teclast X98 Air 3G] siezed:
Download batterybar, that way you can at least see if your meters going to be wrong, if its reporting 14400 mah or w/e, you know 7% is more like 40%, and if its 30000 or w/e you know it will be accurate. Then eventually it should balance out to windows seeing it as 21000 give or take, and the meter will be accurate. That's my experience anyways. For updating bios with windows, I honestly don't remember the tutorial I used, it might be right on the first page, gotta do some digging and keyword searches.
[Teclast X98 Air 3G] intre:
My tablet was Android only and I updated it to Windows only. There was a tutorial to do so. But I did not see any tutorial on the process to update from Windows only to Windows only.

BTW thanks for the batterybar tip. :)
[Teclast X98 Air 3G] intre:
I've just updated to Windows 10 Anniversary and so far it's going smooth (I swear it's smoother than before). I only had to reinstall Kionix drivers. But there's one problem: I updated again the Intel SD Host Controller to SDA Standard Compliant SD Host Controller to fix the battery drain, but the drivers on this last one are now from 2006, and I think I remember that in previous Windows version they were from 2009. Am I wrong?
[Teclast X98 Air 3G] sam.fisher190:
mirek190

mirek190 please is it possible to get a rom for teclast x10hd cause i was not able to find any , not in a one site around the globe in any language , i tried to use your for x98 air 3g because i loved what you put in it from viper4android to xposed but the screen touch is not working properly , different screen driver may be , i found a rom for teclast x16 put i couldn't manage to flash it because intel manufacturing tool does not support .json and it wouldn't work with intel phone flash tool , flashing stops at 10% and appears an error massage , help/.
[Teclast X98 Air 3G] claudioita:
Hi, there is a new version of this tablet.

Any other 4:3 tablet, 8 or 9", that you recommend?
[Teclast X98 Air 3G] Stilgar.naib:
How check OTA firmware update?

In what way i can check OTA firmware update?

Thanks

Stilgar
[Teclast X98 Air 3G] dany89:
Hi everybody!

I missed the first post section where it explains how to install Xposed and have it working, so I updated framework normally and now I get bootloop while starting Android.

Fortunately I can start in windows, or DNX-mode (though it's new for me).

As I read here, I tried hitting every button combination on boot but Android won't boot in any case.

So my questions are:

How should I proceed?

Can I wipe everything from windows and start fresh installing again Android (also only Android with one partition would be fine)?

Is there a way to access Android recovery mode and factory reset?

Is everything to be magaed with adb bridge/fastboot commands from DNX start?

Thanks in advance
[Teclast X98 Air 3G] sandroj:
Use Intel Manufacturing Flash Tool from DnX mode to flash rom. You can use either stock or custom ROM Mirek.

Sent from my Teclast X98 Air 3G (C8J6)
[Teclast X98 Air 3G] siezed:
Hi guys just thought i'd post here that the win 10 update may mess up your screen rotation sensor like it did with me, took me awhile to figure it out but for some reason it deletes the sensors driver, you just need to run the driver tool here and you'll be all set again; http://techtablets.com/wp-content/u...eries-inverted-screen-Gsensor-drivers-fix.zip

So if your screen stops rotating, this is the fix for it.
[Teclast X98 Air 3G] hnito82:
I also have the same problem but I have only Android. to me it did so suddenly and now I do not know to solve the problem?
[Teclast X98 Air 3G] hnito82:
you have solved? Because to me I did so suddenly and I can not fix it. Ps. I only Android
[Teclast X98 Air 3G] don-camillo:
Bios update

How long must I wait for the bios update until I turn it back on.

In the Windows menu the following is displayed: Keep Power Button for 10 Seconds to switch off device.

otherwise you brickk your device

Don`t try restart or power off from the power menue that will cause you brick.....

Ok i have power Button press 10 Seconds and now ????
[Teclast X98 Air 3G] Crazy_Oni:
press it again to start your tablet? ?

Gesendet von meinem ONEPLUS A3003 mit Tapatalk
[Teclast X98 Air 3G] don-camillo:
Thank you now Bios 2.05
[Teclast X98 Air 3G] tradenik:
Good evening I have 1 Teclast X98 Air 3G which does not recognize the otg when put usb sticks, mouse directly .when i connect cable

which is otg and power and if choose otg mode and the power cable is on , recognizes everything , someone have any idea why its not recognize with out power
[Teclast X98 Air 3G] micky1067:
Hi together,

I have C6J6 tablet.

I have only a short question. Can I install windows 10 on 2 GB partition in ROM memory (only boot) ? And the system to sd card.

Also I like to connect my smart tv to the tablet by hdmi. Can I change the resolution for hdmi to 1080p ?

And tablet resolution stay by 2048 x 1536

thanks.
[Teclast X98 Air 3G] hamtarocat:
Hello, I have X98 Air 3G C5J6 dualboot.

Hoewer, on the android 3D games freeze and 2D ones are laggy. How do I fix this?

I've tried teclast.com/en/Information/009.html but it didn't update (it loads but on reboot tablet returns Error 8 ). fastmode.apk by itself didn't work. I'm a begginer user and I'd prefer to not change too much. Help me, please!
[Teclast X98 Air 3G] BjornL97:
update from a working dual boot.

I hope i am allowed to ask this question here, if not please inform me about it.

My question is:

If i do this bios update on my working dual boot android/windows8.1 air ii (to fix some battery issues). Will the state of my android and windows 8.1 stay the same with all my applications, settings, data, etc. Still on it after the update ? (apart from the fact that i will back-up both parts of course)

I need to know this before i do the update because im not 100% that i will be able to reinstall android and windows on the tablet along with the back-ups i made.

I hope someone can help me, thanks in advance
[Teclast X98 Air 3G] sandroj:
Flashing new version of BIOS will keep all of your data (both Windows & Android) intact
[Teclast X98 Air 3G] Western77:
Flash Bios chip Gigadevice GD25LQ64CVIG problem

Hi all,

I´m a proud owner of a C5J8.

Few weeks ago I bricked my device so it does not start or even charge - it´s just off.

I found lots of information concerning flashing the bios chip on this thread but what I noticed early was that nobody else in this thread has a X98 having a low voltage bios chip than mine.

The datasheet of the GD25LQ64 describes a voltage range from 1,65V to 2,0V.

However with that informations I ordered these pieces at Aliexpress:

- CH341a usb programmer

- 1,8V converter

- this special cable to hook on the bios chip

- 5 bios chip (GD25LQ64CVIG) to train before flashing my device (thanks for this tip to Mikha777)

I thought in combination with that 1,8V converter the flash process should work as described.

But unfortunately it didn´t.

I put all parts together having an eye on every parts pin 1 and finally hooked up one of my training bios chip.

I used two version I found on the Inet of the ch341a programming software (v 1.18 and v1.29) and I did everthing as described in the step by step description of Mikha777.

But I failed every time at the very first step:

The detection of the chip failed. The software does not recognize my chip.

So I selected in that comboboxes on the left hand side:

Type: 25\26 SPI Flash

Manu: GIGADEVICE

Name: GD25Q64 --> In that combobox there is no GD25LQ64 available.

Then I started the "Erase" function which seemed to work.

Then I started the "Blank" function which gave me the error: "Chip Main Memory are not null."

However, I tried to program the chip anyway (Bios v2.02) and the "Write" function ran to 100%.

But the "Verify" than gave me the error: "Chip Main Memory with the contents are in disagreement."

So I removed the 1,8V converter (because it was one of my training chips only) and retried it, but failed in the same way.

So what can I do now.

Does anybody successfully flashed a GD25LQ64C before?

Do I need a different version of the programmer software supporting low voltage chips?

Any tip would be appreciated.

Best regards

Western77
[Teclast X98 Air 3G] vprasinos:
You probably need a later version of the software that will recognize your chip.
[Teclast X98 Air 3G] rafabrasil85:
Friends, I've searched all around but found nothing.

Here is the situation: I can turn the tablet on but there are no OS anymore, it goes directly to a shell. I can access the UEFI settings and tried installing Windows via pen drive, but when it gets to the screen which allows me to choose the drive to install, it is empty. System is not recognizing eMMC anymore... Does anybody have any hint on this?
[Teclast X98 Air 3G] klaxhu:
Hi all,

I've got C5J6 with currently only windows 10 on (it had 8.1 on and I have updated to 10 by using the updates). After that I have done a clean/wipe/reset so the windows is now "fresh". However the battery is showing as charging when it is not and I do not know how to fix this issue. So my idea is to put android on it...

UPDATE: I have now booted in DnX mode and tried to install an android ROM as per forum instructions for my device

I am now trying to flash and I am getting a "could not find boot device handle just after it is going from the dnx waiting screen into the firmware update."

and then there I get a few things like: ERASE failed for the intel/by-label/cache and also the next ones like: E: format volume /dev/block/ .... again ERASE Failed.

This is what I get in the Intel firmware tool in the log screen:

Any ideas?

04/23/17 17:25:48.859 INFO : Manufacturing Flash Tool V 6.0.43 (build on Sun May 18 12:29:29 PDT 2014)

04/23/17 17:25:48.862 INFO : Loading settings from C:/ProgramData/INTEL/Manufacturing Flash Tool.ini

04/23/17 17:25:48.870 INFO : Using Qt version: 4.8.1

04/23/17 17:25:48.870 INFO : Using XFSTK version: 1.5.5.

04/23/17 17:25:48.873 WARNING: Please select a flash file...

04/23/17 17:25:59.888 INFO : Loading Flash file (C:/Temp/!!!! teclast update/v6/ROM/flash-system_only_WIPE_DATA.xml)

04/23/17 17:25:59.889 INFO : GP_Flag is set to 0x80000045

04/23/17 17:25:59.889 INFO : Ready to flash!

04/23/17 17:26:56.381 INFO : do_new_medfield_device STARTING TO FLASH

04/23/17 17:26:56.381 INFO : Port 0/0/7 #0: DNX/droidboot phase - SN : Baytrail003CDE6E

04/23/17 17:27:01.077 INFO : Port 0/0/7 #0: Booting to droidboot.img success - SN : Baytrail003CDE6E

04/23/17 17:27:31.537 INFO : Port 0/0/7 #0: Flashing OS

04/23/17 17:27:31.537 INFO : Port 0/0/7 #0: fastboot -s Baytrail003CDE6E -S 100M erase cache

04/23/17 17:27:33.256 WARNING: Port 0/0/7 #0: Failed to execute "fastboot -s Baytrail003CDE6E -S 100M erase cache":

erasing 'cache'...

FAILED (remote: unable to format)

finished. total time: 1.705s

04/23/17 17:27:33.506 WARNING: Port 0/0/7 #0: Retry to execute fastboot -s Baytrail003CDE6E -S 100M erase cache

04/23/17 17:27:35.232 WARNING: Port 0/0/7 #0: Failed to execute "fastboot -s Baytrail003CDE6E -S 100M erase cache":

erasing 'cache'...

FAILED (remote: unable to format)

finished. total time: 1.714s

04/23/17 17:27:35.482 INFO : do_flash_finished END OF FLASH

04/23/17 17:27:35.482 ERROR : Port 0/0/7 #0: Flash failure
[Teclast X98 Air 3G] sandroj:
It might be the fault with your charger. Try charging the tab using any 3A charger and see whether it works while Windows is running.
[Teclast X98 Air 3G] klaxhu:
tried but no luck!

however, the question still remains - why can't I flash the android ROM?
[Teclast X98 Air 3G] mangetron:
hi does anyone know what the CLS cable is and where i can get a replacement. accidentally tore the cable while trying to remove the black tape.
[Teclast X98 Air 3G] Kryogen:
It is the display cable. It's got two pieces, the cls one is actually a connector between the motherboard and the LCD.

Inviato dal mio ONEPLUS A3003 utilizzando Tapatalk
[Teclast X98 Air 3G] mangetron:
Thanks for the confirmation. any idea where to find this cable? did a scour on the internet and didn't find anything.
[Teclast X98 Air 3G] Kryogen:
You could try looking on aliexpress / directly ask suppliers for the part number, although your best bet would be finding an x98 air 3g with a broken screen, and take what you need from it. You could even repurpose the motherboard as a mini-pc.
[Teclast X98 Air 3G] mangetron:
thanks mate!
[Teclast X98 Air 3G] bjorni:
Hello, I hope you still follow this thread. I have an X98 Air 3G, which was bought as dual boot. The Windows part has crashed and there is no other way than do a clean reinstall. I have searched for the Teclast original Win 8.1 with Bing ISO to make a USB install media. If I extract all 5 rar parts and put them in the file "images" on a USB stick, will that work or do I need something else? What do you need the WINPE for?

Also very important, will it be a Windows version that is automatically activated by the existing Windows key in my tablet?
[Teclast X98 Air 3G] mcv83:
Hi there. Sorry to disturb, but my X98 Air stopped working while I was watching a video under windows 10...was not charging...so maybe the battery was drained...

So, I plugged it in, and nothing happened...Tried different charger...even USB ports from different computers....nothing.

Tried every button combination, pressure time.... nothing.

I'll let it in charge for 24h..... retried everything : nothing.

So, is there a way to wake my X98 up again? Or is it hopeless, and just have to throw it away?

Thanks.
[Teclast X98 Air 3G] rafabrasil85:
See this thread:

https://xdaforums.com/x98-air/help/dead-battery-bootloop-t3243993
[Teclast X98 Air 3G] JeWy85:
My model is C9J8 (dual boot) and I do some mod to be windows only tablet but now my emmc is not detected and not show on BIOS is there anyway to fix it?
[Teclast X98 Air 3G] Kryogen:
Flash with repartition ;)

Inviato dal mio ONEPLUS A3003 utilizzando Tapatalk
[Teclast X98 Air 3G] rafabrasil85:
Hi friend. My tablet has the same issue. What do you mean by flash with repartition? Do we have to flash again the dual boot BIOS? I have flashed it first time while running Windows. Do I have to flash it from the shell now? Is it possible? Could you share some links to tutorials? Thanks for any help!
[Teclast X98 Air 3G] Kryogen:
You should be able to repartition your tablet by using mirek rom's installer, there's no need to flash the bios
[Teclast X98 Air 3G] rafabrasil85:
I've already tried this solution. When I connect X98 to Windows, nothing happens anymore. I'm using the same notebook I used long time ago to install Mirek Lollipop and later RemixOS. Everything is installed correctly, ADB, drivers...
[Teclast X98 Air 3G] miliardopiscrat:
battery meter inaccurate

I have to make a quick note, after dirty flash mirek 5.0 rom and pushing framework-res.jar with changed battery capacity in power_profile.xml, overcounting problem is less visible. I'm still testing different values counting this will fix problem with strange battery stats.
[Teclast X98 Air 3G] Stilgar.naib:
windows 10 and hibernate

Hi, i have a Teclast X98 Air 3G Tablet with dual boot, in windows 10 i tried to hibernate windows, but when i try to reactivate, windows go to crash.

There is some trick or is better not use the hibernate function?

Bye
[Teclast X98 Air 3G] rafabrasil85:
Hi guys.

I'm about to gave up this device and throw it in the trash.

I was using for almost a year (Windows 10 and RemixOS running flawlessly) when it refuses to charge. I've made a custom charger following other thread's instructions then it get back to recharging, but tablet stayed off for a long period and now it only boots in EFI Shell. I've tried Mikha777 method, BIOS backup works fine, and flashing version 2.02 went well. The 2.05 in the link gives an error (Image type X64 is not supported by this IA32 shell).

I can't find old BIOS versions anywhere to test... And I didn't make a backup of the one the tablet came with before I've updated to 2.02.

I've tested also this method ( https://techtablets.com/2015/10/teclast-x98-pro-boot-to-bios-missing-emmc-fix-bios-update/ ) using backup BIOS file and it also worked, but X98 continues refusing to enter dual boot screen, it always goes to EFI Shell.

I've tried to install flesh Windows 10 via a Rufus' pen drive and installer works until the screen where I have to choose storage - no one appears. My PC doesn't recognize tablet anymore, so I can't try Android methods.

Is it possible that emmc is gone forever? Is there a voltage test I can do to verify if it is alive or dead?

Sorry to bother you, I know this may be an old thread as this device has some years now, but you are my last hope. I like so much this tablet, and the touch screen, battery, microUSB and BIOS are working. I just need to install something to bring it back to life. Please if anyone knows anything that could work, give me a helpful hand here.

Thanks for any info.
[Teclast X98 Air 3G] droutis:
Teclast Air 3G 32G C9J7 Dual Boot (2014) digitizer cable code

Can someone verify that this model has this digitizer cable code? 097137-01A-V1 thanks
[Teclast X98 Air 3G] siezed:
Hey all, so after using this tablet for a long time, messing with it endlessly, installing every ROM mirek has graciously provided us with, and generally not going a day without shaking my head at it for some reason, I've finally decided to move on. I'm very close to just biting the bullet and going with the new 9.7 iPad, it's very tempting at just over $300 with prime shipping, but I don't want to spend that much and I like the versatility of android (I'm ok giving up windows, if I ever NEED a windows tablet, which is very rare but does happen, I'll use this x98 air2).

My question is does anyone here think there's a viable upgrade on the market that will exceed this tablet in every way for under $250? The main things I'm looking for is GPU performance, accurate battery meter, sufficient cooling for playing intensive games like vainglory while charging, android os, at least comparable screen 9.7 inches or above and a well put together hardware and software match, in the sense its not a generic android os with a lacking bios and full of problems like this x98 air2. I'm posting here because I can only assume many are in the same boat as me, and probably many more have already been through this and settled on something else, so I'm curious about their experience and their insight on what tablet is the best bang for the buck right now capable of playing the most demanding android games, and if the general Chinese tablet market has shifted from full of problems (which I even knew back in 2014 or whenever I bought this) to a more plug and play experience. Don't get me wrong, I love customization, I'm very tech literate and don't mind VIABLE fixes, but I'm sick of a tablet that never has an accurate battery meter, has a poor micro USB port that continuously unplugs, has overheating and/or bios issues that make it so I have to hack the os to not dim my screen or show "thermal event" messages, dead pixels, and poor hacked sound that drains my battery when I use amplifying sortware. So what is your opinion? Am I a dreamer? I'll take that advice along with the positives, just want to get you guys' extremely informed opinions before I send my hard earned money to another Chinese tablet company. Thanks!