yashsingh1/xdaforums huggingface dataset:
[Teclast X98 Air 3G] ILUVMONEY:
This happened to me too! What I did is uninstall the adb drivers from device manager. Then reinstall the adb drivers. If it still doens't show "Android device adb" from your device manager, then watch this tutorial video:

https://www.youtube.com/watch?v=LbAq6d2Du0U

This will solve the problem and when you want to flash the bios, it will detect your device.

---------- Post added at 06:35 AM ---------- Previous post was at 06:29 AM ----------

Hi mirek,

I'm about to flash your new rom. I have stock windows and android, but I want to completely wipe out the stock android and flash to your new rom. I also want to leave the windows as is. Do I do a "full flash" or "flash only system"?

And as for data partitions, If I choose 20 or 30 GB, will that wipe out my windows?

Thanks
[Teclast X98 Air 3G] tecknight:
I had the same problem when I ran Antutu the first time. It hard locked. When I rebooted I was able to run Antutu.
[Teclast X98 Air 3G] mirek190:
Android on teclast x98 tablet not using cache partition as ram extend !

Only for updates from teclast.

What caused some freezes for some people please report what version of tablet you have .

And please report to other people if works fine .

I'm using that rom from few days and installed around a 100 apps for testing and newer had freez.

Maybe gpu cause problem - I should underclock to 580 mhz because now works with full speed ( 640 mhz ) and system ( 5.0 v4 ) is fully accelerated by gpu no software at all .

About wifi slow for some people - you have very noisy environment for 2.4 ghz wifi .

I could speed up wifi connection but then will be disconnect connection radome ( like some people report that in 4.4 v4.2 ) .
[Teclast X98 Air 3G] chip54:
Teclast X98 model HG9N

Hello, I'm a new user of this tablet , for an error my model is without 3g and without Win 8.

It's possible to install the new rom by Mirek in my device?

tks for reply

Giampiero
[Teclast X98 Air 3G] G3n3R4L:
does anyone know if the teclast the same size as the ipad ? there is some silicon case i want to buy but its for an ipad, any idea ?
[Teclast X98 Air 3G] majkel_94:
Width and lenght are the same but the ports and buttons are in different places.

Also the thikness is 8.2 mm, not 7.4 as Teclast claims (maybe Air II but not 3G) :P
[Teclast X98 Air 3G] Frontier:
True.

Stock rooted ROM will do OTA.

It happened to me when I installed v2.0.0, performed root, did OTA to v2.0.1 and the tablet was back in unroot state.

DO NOT FLASH A C8J7 DEVICE WITH EITHER ANDROID OR WINDOWS BIOS FILES AVAILABLE. It will brick your device beyond repair as there is no C8J7 BIOS available to flash, even by an external SPI programmer.

Someone with a C8J7 device please backup your Android BIOS - with fpt tools - and share.
[Teclast X98 Air 3G] supercowz:
I have one C8J7 with android.... I know the win dump method, but if you remind me how to dump bios under android, I dump it and share it right away ..

edit : i found the way myself, i'm dumb sometime :)
[Teclast X98 Air 3G] G3n3R4L:
does the camera picture shows up in a green color on windows 10 ? because the picture is green now ....
[Teclast X98 Air 3G] soudara:
no , not green on mine with windows 10
[Teclast X98 Air 3G] G3n3R4L:
this is weird !! did you read about it somewhere ?

the version i use now is the technical preview from the microsoft website, is that it ?
[Teclast X98 Air 3G] supercowz:
Here the X98 air 3G C8J7 bios, android version

http://dl.dropboxusercontent.com/1/view/26mk01pqxkra10v/Public/X98Air3GC8J7.bin
[Teclast X98 Air 3G] SUMMERBREEZE:
Czesc! Could you flash this bios as below to your C6J6 device and see if you could flash to Android after? If your device accepts C8J7 bios, vice versa, C6J6 bios will flash on C8J7 too? You had said you have a SPI programmer.. What do you think? Is it worth to try? :confused:
[Teclast X98 Air 3G] Frontier:
Excellent [MENTION=2470600]supercowz[/MENTION].

With your permission, I've also upload it here.

My X98 DevHost folder link is also here and includes everything I could find regarding this tablet (rooting kits, BIOS'es, Windows Images, IFWI firmware, ...).

Feel free to grab what you want.
[Teclast X98 Air 3G] supercowz:
sure no problem my friend.. im glad to help :)
[Teclast X98 Air 3G] Hendrickson:
Well it was bound to happen. I changed a setting in the bios I should not have (Silly me I know) and now it will not boot. Anyone how to reset the bios on these units? Like a Vol + and hold power = Bios reset ?

I have removed the battery GND, NTC and BAT+ wires and left it for a few minutes and it did NOT reset the bios. I would have thought it would have!
[Teclast X98 Air 3G] Frontier:
You cannot perform a CMOS reset - like on a standard PC - on these devices because they do not have a CMOS area; all NVRAM settings are stored in the BIOS flash area and this area is cleared only when the BIOS is flashed and initialized.

Try to enter the device in DnX mode and flash - if it's a C6J6 or C8J7 device - the Android BIOS.

If you are on Windows and do not have a C6J6 device, try to flash an ftp backup of your original Windows BIOS (the one that includes your Windows PK).

See post #2 and #3.
[Teclast X98 Air 3G] Hendrickson:
Well in this case I think I'm in trouble. It's on Windows and I'll have no way to flash the bios :(
[Teclast X98 Air 3G] supercowz:
i dont get it ...

what do you have ? X98 air 3G C7J8 win8.1 version ?
[Teclast X98 Air 3G] HDtracer:
Its sounds like a file problem rather than hardware.

I use viper and the sound is amazing.

You can boost speaker and headphone volume as high as you want or untill somthing blows up haha.

It does take a bit of setting up though. All other sound processing needs to be disabled (within the players you are using) and viper enabled in settings/sounds.

Does anybody here know enough about android programming to have a go at making a TWRP recovery? I had a read through the tutorial and got a bit lost.

I am keen to play around with some settings etc but with no way to restore the tablet except for a clean reflash Im not so keen.
[Teclast X98 Air 3G] Hendrickson:
Sorry didn't mention C6J6 that is on the Windows bios running Windows, there is no way for me to flash a bios now if it's dead.
[Teclast X98 Air 3G] supercowz:
I see

Did you try

Turn off tablet

Push Volume - and power and stay push longtime ?
[Teclast X98 Air 3G] Hendrickson:
Yes I have tried all combo's I can think of.
[Teclast X98 Air 3G] SUMMERBREEZE:
I think the only way to flash by a kind of SPI programmer..

If you cant do anything, send the tablet back to your seller and ask them to repair it
[Teclast X98 Air 3G] BoORDeL:
HG9N is an AIR II variant so you do have nor 3G neither GPS.

You can install Mirek rom based on lollipop but remember to choose the one implemented for AIR II model.
[Teclast X98 Air 3G] mikbe:
My tablet is C6J6 and it freezes completely. No previous GPU issues. I can't change values because tablet doesn't respond.

I wish someone could make stock lite of the Teclast ROM for 1GB system. I would be happy even if it's not tweaked to the max. :)
[Teclast X98 Air 3G] capic:
Hi, for me it's freezing when I launch antutu, I have the C9J6.
[Teclast X98 Air 3G] DiegoVip:
Help

Hi I just installed X98_Air_3G_android_5.0_mirek190_v4.0 all works also boot into Windows 10 only doesn't work on 5.0 and freez device Android 4 works, my tablet is the C9J8
[Teclast X98 Air 3G] bedburg:
I installed the new ROM on my Air 2 (HG6M). Many freezes, Camera, Antutu, Account Settings.
[Teclast X98 Air 3G] giupa87:
hi mirek

i just installed the your new rom, lollipo v4.0 for air 2 but the camera doesn t work :(
[Teclast X98 Air 3G] chip54:
Tks for your reply
[Teclast X98 Air 3G] so_ang:
Just DL Lollipop but my wife break me to update coz interface it too white

She more love Black color theme in Kitkat

Can I change theme of Lollipop to be Black like in Kitkat ?
[Teclast X98 Air 3G] mirek190:
I noticed on old models ( 3g - c6j6 air 2- hg6m ) where camera not working cost most freezes ?

Who has freeze ( not related to the camera - Apps using camera freez like skype etc ) could underclock gpu shall we say to 550 mhz ?

Go to system/etc/inid.t/03gpu-fix and change values to 550 ?

If still freez then try remove from that folder 02fixoverlays

But then some apps will be flickering.

And then tell me if helps .
[Teclast X98 Air 3G] mammoth55555:
thanks for your rom

in X98_Air_3G_android_5.0_mirek190_v4.0 ,, no xposed ?!

I install Zenfone xposed but brick my device
[Teclast X98 Air 3G] bedburg:
No change

Gesendet von meinem X98 Air II mit Tapatalk
[Teclast X98 Air 3G] mirek190:
In next version will be xposed .

---------- Post added at 11:19 AM ---------- Previous post was at 11:18 AM ----------

Have you tried the first and the second thing ?
[Teclast X98 Air 3G] ILUVMONEY:
Hi mirek,

I'm about to flash your new rom. I have stock windows and android, but I want to completely wipe out the stock android and flash to your new rom. I also want to leave the windows as is. Do I do a "full flash" or "flash only system"?

And as for data partitions, If I choose 20 or 30 GB, will that wipe out my windows?

Thanks
[Teclast X98 Air 3G] capic:
I tried both but it's still freezing when antutu starts the test
[Teclast X98 Air 3G] totor54:
hi mirek190

I'm sorry to disappoint you. I returned on v3. v4 hangs at every operation I do .I am forced to put it out and turn it on every time

c5j6

I just offer you a beer for your Work and your help

94P47474BK373392C
[Teclast X98 Air 3G] mirek190:
If you repartition - yes you loos le all data including windows .

Flash system only keep your windows .

---------- Post added at 11:47 AM ---------- Previous post was at 11:46 AM ----------

Try remove speed v3 from init.d

Then tell me what happen .
[Teclast X98 Air 3G] BoORDeL:
i appreciate this new rom and ur effort mirek, but please do not forget shipment tnx
[Teclast X98 Air 3G] mirek190:
Ok I have some clues ....

Is not related to gpu ...

If you could flash v4 again and remove speed v3 from init.d and check if helps .
[Teclast X98 Air 3G] Alcaide88:
Hello,

Already updated Windows. but now if you Clean Install Windows 10 lose dualboot ?

Thank you
[Teclast X98 Air 3G] capic:
It's still freezing
[Teclast X98 Air 3G] mirek190:
Now make factory format from settings .

And check

That really strange - why for me is full stable ?

I have c5j6 .
[Teclast X98 Air 3G] bedburg:
Hi Mirek, HG6M still freeze.. Both options tested.

Gesendet von meinem X98 Air II mit Tapatalk
[Teclast X98 Air 3G] capic:
Still the same problem
[Teclast X98 Air 3G] mirek190:
Another question - bios

I'm using 1.07 .

Who has freez what bios you have ?

---------- Post added at 12:49 PM ---------- Previous post was at 12:48 PM ----------

In your situation camera doesn't work ?
[Teclast X98 Air 3G] mikbe:
C6J6, bios 2.02
[Teclast X98 Air 3G] bedburg:
Right, camera won't work. BIOS 2.02
[Teclast X98 Air 3G] mirek190:
That bios wasn't designeted for that device .

Could you back to 1.03 and check ?

---------- Post added at 01:00 PM ---------- Previous post was at 12:52 PM ----------

It could be connected to bios 2.02 ...or old device ...like c6j6 ( camera problem )

Any one have problems with freez on c5jx c8jx or c9jx devices or air 2 that with 9 or 8 at the end ?

And If you have problem with freez what bios you have ?
[Teclast X98 Air 3G] capic:
I tried with 1.03 but I still have the issue
[Teclast X98 Air 3G] microb77:
Ah, a shame... I was about to try this rom on my Air II 32Gb - I too need the cameras so I guess I will wait.

EDIT:

Well, me being me, I decided to go ahead and try it as well, for the sake of progress :)

HG6N (Air II 32 Gb)

BIOS is 2.02

On the 1st boot, it crashed and rebooted (I saw ViperFx showing up while I was on the language selector, and the tablet rebooted).

On the 2nd boot, it seemed fine, so I tried cameras. Tablet freezes.

:(
[Teclast X98 Air 3G] guvno:
Windows 10 reinstallation help please please

Please can someone help... I am trying to reinstall windows10 and I think I have fudged something up badly...

I have a HG9M and Android and dual boot is still working fine (BIOS is v1.08 and I have my product key) but obviously not windows...

It all started when I did a "reset PC" in windows10 as I am giving my tablet away and it had been upgraded from win8.1 to win10. The reset was stuck at 66% for ever and I tried a couple of things but in the end I got into a state where windows just showed a black screen with the mouse pointer showing and it was just stuck there and nothing was happening.

So I have win10 on a bootable usb stick and a usb hub connected and I can get it all to boot from the usb stick. The problem started when I got to select whether I want a fresh instalation or a upgrade. I tried the upgrade first but the install wizard just told me to reboot and start a repair. This did not work. So I decided to do a fresh installation instead. The problem here comes when selecting the partitions on which to install. 18 partitions comes up to select from and I choose the last one (38GB of which 31GB was free) when I chose that partition the installer said that a old version of windows already exists there and warned about not being able to use this old version and so on. Still i ignored this and said to proceed, I cant remember why but the installer would not allow me do this... It was not until I formatted this last partition 18 that I got one step further to be stopped again. I actually had to delete partiton 18 and then the installer allowed me to install windows in the unallocated space. The installer creates 2 further partitions (system and recovery) and then goes on to copying files but stopps immediately and complains about the EFI partition being formatted in NTFS... I really dont know what to do as I assume if I delete the EFI partition I will be in even bigger trouble? Can someone help? Perhaps someone has done a fresh win10 installation already? Which partitions should I delete/format to be able to install win10 and still keep my Android? Please help
[Teclast X98 Air 3G] iscle:
Hi, i would recommend to do a full format by installing a new android rom and then install a fresh copy of windows 10 after that, because you will only need to select one partition (the free space one) and everything would work. For the drivers i ended up creating a custom installation with the drivers updated for the tablet using NTLite.

I'm not sure if i ansered your questions!
[Teclast X98 Air 3G] whiget:
Great work Mirek!

I try to install rom from windows 10 using the same drivers as on win 8.1 and failed. adb drivers was incorrect (but windows recognize tablet correctly and i was able to check files on tablet) and installation stack on 11%. I downloaded new drivers IntelAndroidDrvSetup1.9.0 (https://software.intel.com/en-us/android/articles/intel-usb-driver-for-android-devices) and then adb recognize tablet correctly and installation was succesfull.

i have c6j7. camera is not working and sometimes freez tablet (not allways). I have 2.02 bios from mirek.

ps. Mirek jeśli jestś z Krakowa to służe tabletem do testów :)
[Teclast X98 Air 3G] ckdueotto:
#11413

Hi all.

(I apologize in advance because my English is not so good)

I am an happy owner of Teclast x98 air 3g (model C8J6) bought just five months ago. I hadn't any rilevant issues (freezing only and mostly with Windows 8) 'til today.

The tablet was on with 100% of charge when, suddenly, after an hour of stand by, the device died. It doesn't work anymore. I tried to press the power button, nothing. I tried to go dual boot, nothing. I tried to connect it the charger, nothing. I tried to connect it to the PC, nothing.

I don't know what to do. The device is dead.

Can someone help me?

Problem solved. After many attempts the devide has restarted. I don't know what was the cause of the freeze two hour long.

If the mod deems it necessary he can delete this post. No problem about.

Thanks.
[Teclast X98 Air 3G] kfor07:
mirek190_rom_v4.0 - android 5.0 and special "BOOT.IMG" ???

mirek190_rom_v4.0 - android 5.0

Hi Mirek,

Works this version well for the devices (c8j6) with the Special Boot.img ???

thanks in advance...
[Teclast X98 Air 3G] mirek190:
I don't know - try and tell us .

---------- Post added at 03:05 PM ---------- Previous post was at 03:03 PM ----------

After flash :

1st reboot is normal - then root and viper is setting up.

On air 3g c6j6 and air HG6N ( oldest devices ) camera not working in 5.0 and freez device and apps are using camera also
[Teclast X98 Air 3G] Franckydiam:
Hi Mirek

I can not solve my problem,

with your Flash Tool .bat, I always get this in droidbot mode, and i have "waiting for device"

E:installer device ignored

E:no valid installer medium found.

Could not open /sys/devices/virtual/backlight

and with MFT, always :

08/09/15 22:34:10.275 ERROR : Port 0/0/4 #0: Booting to droidboot.img failed - SN : Baytrail00006BC5

I can not start on android (bootloop), only DNX mode or Droidboot (but I think I have a problem with it) my tablet is not recognized.

How can I do to reinstall a clean droidboot image?

I have reinstall all driver needed, but in driver manager i have this (see picture)
[Teclast X98 Air 3G] capic:
and freezing on my c9j6
[Teclast X98 Air 3G] Stremon:
Hi Mirek,

Thank you again for this great rom 5.0 v4, it is really nice !

But sadly I still have some strange issues that I don't have with the official roms (I dead a clean install) :

- at low backlight level, the screen flickers a lot (it wasn't present in the 5.0 v3).

- the volume button are extremely sensitive, which makes them impossible to use to slightly change the volume (it goes almost from nothing to full volume in one push of the button). this bug was also present in the v3, but not in the other roms or windows.

- the whole UI is a lot more laggy than the v3. It is micro lag all the time, we can feel the system is really not smooth compared to what it used to be.

- also we in the quick setting menu, we can't access the settings by holding the buttons anymore. for instance we can't access to the wifi settings by holding the wifi button. same for bluetooth and the others.

My model is a 3g C5J6.

I feel like there is something changed in the gpu drivers, is that the case?
[Teclast X98 Air 3G] mirek190:
Have you installed Intel adb drivers and Google adb drivers from my rom ?
[Teclast X98 Air 3G] Franckydiam:
Yes
[Teclast X98 Air 3G] abo.adam:
hello [MENTION=2198172]mirek190[/MENTION] , i have c8j6 with special boot ( touch not work ) , with your new room 5.0 v4 is still not working , can you help me please ?
[Teclast X98 Air 3G] microb77:
OK thanks. Is this something you think you'll be able to fix in next release? I am back on KitKat for now, works well.
[Teclast X98 Air 3G] whiget:
try install this https://software.intel.com/en-us/android/articles/intel-usb-driver-for-android-devices drivers. worked for me. the same situation. after instalation windows 10 recognized adb device correctly.
[Teclast X98 Air 3G] siezed:
I was going to reccomend/request this as well, just a stock lollipop but debloated and perma-rooted, I def appreciate the tweaks and fixes but at this point they seem so varied and dependant on other factors that maybe a stock starting point is good and we can use a tool like pimpmyrom or something to apply the tweaks we want/need, but on that note I think most of what has been done by mirek in particular is fully customizable, especially the scripts he used which is nice to be able to just edit.
[Teclast X98 Air 3G] azzy12:
is there anyway to reduce gpu speed in windows ?

MSI afterburner does not work
[Teclast X98 Air 3G] mirek190:
Thanks for feedback .

All that things should be repaired in next release .

But if you want "ultra smooth system bar " ui is as smooth as should be - I checked - just remove 02fixoverlay from init.d

Then system bar ( all UI is fully smooth ) will be rendered by cpu and will be ultra smooth but that causing flickering in some apps .

You have to chose :

- ultra smooth system bar and flickering some apps

- system bar a bit less smooth but all apps works well.

[emoji16]
[Teclast X98 Air 3G] Franckydiam:
Victory !! :laugh:

I do not know why, I used exactly the same driver and it did not work, I tried again with the one proposed and there, yesssssss I was finally able to flash Mirek lollipop v4 with flash tool .bat!

Last, apart from some more white hair from yesterdays, you know what, I'm so happy :victory:
[Teclast X98 Air 3G] mirek190:
Those settings I changed not freez tablet.

Happens only on c6j6 and old air 2 HG6N where camera doesn't work .

I think that new rom has many changes inside and is even less compatible with those old tablets .
[Teclast X98 Air 3G] Franckydiam:
Now I no longer has to wait for the new version of Mirek lollipop with Xposed installed, and all will be fine :)
[Teclast X98 Air 3G] DANGERBANANAS:
In my log appears this:

* daemon not running. starting it now on port 5037 *

* daemon started successfully *

List of devices attached

and stopped then-
[Teclast X98 Air 3G] BoORDeL:
AIR 2 HG9N with 1.07 bios.

No problems at all, every thing works fine but perfomances are worst than 4.4

COC is unplayable even at 1600x1200x206dpi.

rolling back
[Teclast X98 Air 3G] picarddontoro:
---------- Post added at 03:55 PM ---------- Previous post was at 03:52 PM ----------

Hi, I have the same problem. I want to install a clean Win10. I flashed the rom mirek190_rom_v4.0 - Android 5.0 with full flash (with repartition). Android works well. I put Win10 on a bootable USB stick (I already have the license key) but now forcing in the bios to boot the USB stick it will not start; before installing the rom mirek190 the boot from the same usb stick working. Why?
[Teclast X98 Air 3G] mirek190:
I tried ealier replacing modules in boot.img but finally appeared it is hard coded in kernel and can't do nothing with it sorry .

You have to wait until teclast release proper kernel for it .

---------- Post added at 05:11 PM ---------- Previous post was at 05:06 PM ----------

You see - that's why I develop 4.4 and 5 .0 at the same time because some people prefer 4.4 and other 5.0 .

And 5.0 is not work well for everyone like you see ( older devices ) .

---------- Post added at 05:16 PM ---------- Previous post was at 05:11 PM ----------

Intell adb drivers installed ?
[Teclast X98 Air 3G] iscle:
i don't know, but i had to format the usb using a program called RUFUS in fat32 and using UEFI boot MBR mode... Try that! And i recomend to do a custom windows 10 iso with drivers because it will be a pain in the ass to install them later. Use NTLite to do it!
[Teclast X98 Air 3G] Franckydiam:
Mirek,

With Resolution Changer, what is the resolution you recommend for this tablet?:)
[Teclast X98 Air 3G] mirek190:
I try ... and hope it is not hardcoded in kernel ...

---------- Post added at 05:27 PM ---------- Previous post was at 05:22 PM ----------

1600x1200

Or sometimes ( some games ) even 1024x768
[Teclast X98 Air 3G] Franckydiam:
---------- Post added at 05:27 PM ---------- Previous post was at 05:22 PM ----------

[/COLOR]

1600x1200

Or sometimes ( some games ) even 1024x768[/QUOTE]

OK and for the DPI ? :)
[Teclast X98 Air 3G] haimg:
Report on Mirek190 latest ROM (on Air 2 HG9N)

Hi Mirek,

Reporting from Air 2 (HG9N), with Bios 2.02 installed:

After re-partition and full install, device rebooted during the initial setup (on select Wi-Fi networks page). After that, it works ok, without freezes or reboots. What I tested:

1. AnTuTu benchmark

2. Camera, shooting photo/video

3. General usage (installing apps, Chrome browsing, etc.)

Everything above works smoothly. What is weird or does not work:

1. Volume keys are hyper-sensitive: one click moves the slider 3-4 positions. Keys are basically useless, need to move the slider using on-screen touch.

2. Volume itself is super-loud and using the volume keys, can only be changed to either "mute" or "super-loud". Fixed by changing Viper settings.

3. Softkeys choice is very strange. Who needs a dedicated "screenshot" softkey??? Same for volume up/down keys, on a tablet with dedicated hardware volume buttons...

Question: Can I do anything about #1 and #3 above?

Thanks again for a great ROM!