yashsingh1/xdaforums huggingface dataset:
[Teclast X98 Air 3G] apedro:
Yes, I see the bios by pressing ESC. The issue is that I do not know how to flash an Android firmware as I do not get the droidboot screen now (holding power up button + Vol buttons does nothing). I cannot flash a rom because the Manufacturing flash tool does not detect the tablet.

Thank you
[Teclast X98 Air 3G] EricCrapton:
In addition to above I was checking how to enable 3G data in WIndows 10. NO such thing in my X98. I received a new 5C6J model with Windows 10 installed, I changed absolutely nothing to BIOS or Windows 10 and the SIM does NOT show up. Bloody incredible. I put this exact SIM in my Galaxy Tab2, adjust the APN and settings in Android 4.4.4. and I have full and flawless 3G data connection H+, so connection and SIM work fine it really is in the X98.

I do not know what is going on but I am really getting pissed off with this Chinese piece of junk. It is supposed to have 3G by default in Windows 10 default and it does not even see the 3G SIM. In Android I did upgrade to Mirek Lollipop V6 works fine and does see the SIM, I can even call,

but NO data

. How can I have problems in 2 operating systems?

Or can this be a wrong stock BIOS? How can I see what BIOS is installed?

Flashing MIrek Lollipop went smooth but for some reason the flasher does not see the X98 any more. Driver issue possibly. Installed various drivers multiple times using different methods as discussed here. Trying MFT and Mirek's bat file to flash. X98 is in DnX mode for sure, I did switch on USB developer. Restarted PC and X98 several times.

Also battery level drops off really steep at say 50-60% goes down to 20% in 30 min. Nowhere close to 8-10 hours. If X98 goes on like this it will surely find its way to the garbage can. Disappointed user.
[Teclast X98 Air 3G] mirek190:
Updated lolipop , kitkat , added flashing tool for x98pro and added tool to change 3 , 5 ,7 buttons in ll
[Teclast X98 Air 3G] rofejo:
No, they will not work

Sent from my Teclast X98 Air 3G
[Teclast X98 Air 3G] kostas-k:
I tried to make a clean install on Windows 10. Despite the fact that I have 46GB free space, when I choose the partition for installation, it says that there is not enough free space, same if I try to install Windows 8.1. Do you have any solution?

Never had this problem on previous time when installed Windows 8.1
[Teclast X98 Air 3G] jmglez18:
Upgrade to Android v5.0_6.1

I just upgraded my Air 3g (c5j5) to v6.1 (was 6.0) with flash-system_only_WIPE_DATA option has disappeared and I Windows 10.

When starting only and Android icon appears Enter (not where it should be Windows icon). If activated top left icons Dual Boot.

Any ideas or have to install everything again.

Thanks for your support.
[Teclast X98 Air 3G] jcinfo:
press vol + and power
[Teclast X98 Air 3G] Mikha777:
I can't help you for Android since I only use Windows... In meantime you could install Windows at least :)

---------- Post added at 01:47 PM ---------- Previous post was at 01:42 PM ----------

Look at my tutorial here http://sharetext.net/Oub.html to see exactly where is the free space. ;)
[Teclast X98 Air 3G] XICO2KX:
I have the same model and the same problem as you... :(

But I think mirek190 was looking into this issue! :confused:

Any progress so far on the Lollipop cameras bug, mirek190? :fingers-crossed:
[Teclast X98 Air 3G] mirek190:
I don't have such problem and I can't solve it ... but I can assure you someone is working on it :) who has such problem .
[Teclast X98 Air 3G] Al_Rider:
It only brings back OS selection menu if it switched off, not return missed OS icon.
[Teclast X98 Air 3G] oferpelled:
Boot Loop after upgrading to Mirek 190 V6.1

Hi

I have upgraded my teclast x98 from v6 to v6.1 by Mirek 190. Now I can't boot to android it loops all the time.

Windows starts fine. I also can't go to the DNX mode.

What can I do?

Please Help!
[Teclast X98 Air 3G] xloupas:
Hi Mikha777 and to all the guys here i have a teclast x98 air 2 hg9m i succesfully install 2.02 bios, mireks rom thanks mirek and win 10 pro the tablet works great except the front and back cameras not working in windows and in android, in windows the drivers are OV2680+OV5648 but no luck i am wondering if someone can point me out a solution to this problem or if i have to flash the 2.05a bios that i am reading about and where do i find it and a guide how to.

Thanks in advance and will be happy to read your replies and suggestions.
[Teclast X98 Air 3G] BoORDeL:
Strange i've got same model and camera works (android and windows).

Are you sure about the model u got?

EDIT: i've got bios 2.02
[Teclast X98 Air 3G] kostas-k:
I can see the free space, I tried to install as Unallocated space or after NTFS formatted. Both ways, I had the error "not enough space" despite the fact that I had 46GB free space. But finally I found the solution, I repartitioned the disk installing Android from scratch using Intel Manufasturing Tools and everythinh installed ok.

Report: On my C9J6, both camera work on Mirek v4.4.4 v5.1 and only rear camera works on Windows 10 Pro. 3G, rotation and touch work fine without any change

thanks to all
[Teclast X98 Air 3G] xloupas:
Sorry my bad the Model is hg9n
[Teclast X98 Air 3G] BoORDeL:
same hardware.

one is single OS the other dual OS.

does the camera work with stock android image?
[Teclast X98 Air 3G] TomaszD84:
Does GPS work in 2.05 for C9J8? I like how the 3G modem is now detected as a standard Modem on a COM port in Windows, but there is no GPS device in Android 5.0 Mirek 6.1 and Windows 8.1.

Obviously no cameras work in none of the systems (OVTI2860 unknown device), which I got used to, but no GPS is too much. Nobody mentions it anywhere, which is kind of weird.

Also, someone here had problems flashing the "BIOS" under the EFI Shell, you need to reboot into Windows mode so that 32-bit EFI is launched (select "Reboot to Windows" under Android's power menu), otherwise you'll have 64-bit EFI and despite looking exactly the same, it won't let you run the 32-bit EFI flasher that Mikha777 keeps recommending.
[Teclast X98 Air 3G] Mikha777:
At least your front camera should work under Windows with 2.02 or 2.05 :cowboy:

Here's the drivers I use in Win 10 :

https://mega.nz/#!4tIymJ6a!1EUMfs4ip8UD7SyzRqCJNt4Xb0uH_PCEmZ94PJL4uNI :cyclops:
[Teclast X98 Air 3G] xloupas:
yes with the stock android the cameras both front and back was working
[Teclast X98 Air 3G] TomaszD84:
How is your standby battery drain using Windows 10? I installed a clean 1511 Windows 10 version on my C9J8 2.02, got drivers from the usual places and the drain was absolutely unacceptable (dead in much less than two days from full charge) and sometimes I received a strange error and couldn't log in (clean installation with all patches...), to the point that I scrapped the whole thing and installed Windows 8.1 again, which has an almost iPad-level standby battery drain.

Again, what about GPS on BIOS 2.05 you link to, do you have GPS available with it?
[Teclast X98 Air 3G] vprasinos:
Standby with Windows 10 depends a lot on what you are running in the background AND possible driver drain. Go to privacy settings and disable all background programs first and see what happens over 2-3 hours of standby. After that do a "powercfg /sleepstudy" from an admin prompt and check the generated file. Make sure there is no driver that's causing the drain. If so, uninstall completely the offending driver(s) and check the drain again. Finally the constantly active wifi connection on sleep could be causing drain. Enable "battery saving" that disables wifi on sleep and check what happens over the same period.

Drain is something that can be solved but needs patience. If it comes from windows programs you will also get drain from 8.1. The only reason I can think for drain on clean installation of 10 vs 8.1 is driver incompatibility.
[Teclast X98 Air 3G] xloupas:
will try those drivers too i hope they will work but to be honest i dont have high hopes that they will work,or else i will do a new flash with android mirek 6.1 since it's out and then win 10 pro all over again.
[Teclast X98 Air 3G] TomaszD84:
All device drivers were installed correctly. I did perform sleepstudies, enabled all privacy settings and disabled wifi during sleep. The sleepstudies were looking very curious and uninformative, the tablet was getting woken up from deep sleep seemingly without reason, it was very difficult to ascertain what was causing it and I got very few results when googling (one Japanese or Chinese website with someone having similar issues with a Lenovo device).

Do you know how the battery applet in Windows 10 now shows how much time you have left on battery? It never got calculated, only percentage was shown.

Maybe the 2.05 EFI "BIOS" fixes these issues (had 2.02 then), but I want to actually have a usable device, I spent more time running powercfg and reinstalling operating systems than actually used the tablet itself. It's bad enough no cameras work and there's no GPS on 2.05, at least the 3G modem is usable in Windows now...
[Teclast X98 Air 3G] vprasinos:
What version of 2.05 do you have? 2.05b has GPS for devices that support it (older models based on Z3736F) but 2.05a doesn't. I quote Mikha's words from a previous post:

"2.05a is the version that come directly from Teclast with the source code but this version don't support GPS since it was not enabled in the DSDT/ACPI file"

Check this post to download an image of 2.05b (becareful to backup your windows key, because 2.05b removes it)
[Teclast X98 Air 3G] steelicon:
I cannot charge in Android but in Windows 10 I can charge the tablet, as well as when the tablet is turned off. Any suggestions?
[Teclast X98 Air 3G] Mikha777:
Standby time seem acceptable to me, have you done a sleep study ? https://blogs.windows.com/windowsex...raining-your-battery-while-the-system-sleeps/ You should be able to find from where the drain come.

I don't have a GPS but from the the feedback it seem that GPS is not enabled in 2.05a :(
[Teclast X98 Air 3G] TomaszD84:
I've already mentioned that sleep studies were inconclusive.

What is funny is that BIOS 2.05b brings back GPS, but takes away the 3G modem accessibility via a COM port in Windows, "Mobile Broadband" is back and it works even worse than before, no signal...

So 2.02 had GPS and "Mobile Broadband" in Windows that worked for some providers, 2.05a no GPS, but fully functioning COM port modem in Windows (Aero2 provider actually works), 2.05b has GPS, but Mobile Broadband does not work at all. In none of these do the cameras work (C9J8).

There's probably never going to be a BIOS with cameras, GPS and COM port 3G modem in Windows for my C9J8, I'd rather have 3G working, so I'm going back to 2.05a...
[Teclast X98 Air 3G] Mikha777:
I'm busy right now but when I will have some spare time I will pursue the DSDT fix for the BIOS 2.05a to have front Camera working

under Windows

. ;)
[Teclast X98 Air 3G] csabee69:
What is the last dual boot bios where cameras were working in both windows and android?
[Teclast X98 Air 3G] bo2000:
Hi!

I guess I bricked my Teclast Air III (not 3G) with the installation of Windows 10 x64 (how is that even possible?)

I've read a lot of tutorials, but none of them warned to install the 64bit version.

So I guess I need a flashing tool. I searched the forum and found some ebay links.

But what kind of tools do I need exactly? Can I just buy a "BIOS USB Programmer CH341A" and a "SOIC8 SOP8 Flash Chip IC Test Clip socket adapter"?

What kind of specs do these things need?

Is it important if it's an 5V or 3,3V version? The chip itself need 1,8V so what do I have to look for?

Thanks in advance
[Teclast X98 Air 3G] Mikha777:
1.03 but it have a HUGE drain in sleep mode. :cool:

---------- Post added at 10:54 PM ---------- Previous post was at 10:38 PM ----------

There is many warnings in this thread to don't try to install Win 64 bit on 32bit EFI Firmware like X98. :angel:

You need to buy the cheapest CH341 programmer you will find (they are all the same except for minor details) + with one Clips.

Seller Links ---> http://tinyurl.com/h9z5yns + http://tinyurl.com/zsk47wo

TUTORIAL & SOFTWARES I've made to Unbrick your X98 With CH341A: http://tinyurl.com/jag9nm2

Merry X-Mass ! :silly:
[Teclast X98 Air 3G] bo2000:
Thank you very much.

Ok, there are warnings in this thread, but not in the tutorials I've read :(

And I didn't even think about bricking my tablet with installing Windows.

I was more worried about flashing etc...

I'll try to get such a programmer

Update: ordered one. But won't be here before January :(
[Teclast X98 Air 3G] Mikha777:
I know it took almost 2 months from China to receive mine but at this price it's hard to tell something bad. :p

In USA/Canada the price would be over $50 .. but delivery in 2 week usually ;)

The only regret I had was to not have ordered one before beginning tweaking my X98 ;) :cyclops:
[Teclast X98 Air 3G] phoenix10:
As i dont care about gps and 3g

Which one tablet you believe its the best??

Air II - Air 3G - Air III

???

Which one to buy?
[Teclast X98 Air 3G] gesamgr:
the 3rd one
[Teclast X98 Air 3G] supercowz:
The x98 plus !

But Air III is cheaper

Envoyé de mon NX507J en utilisant Tapatalk
[Teclast X98 Air 3G] phoenix10:
But AIR III i think its only android...

Do i mistake??

Can be AIR III dual boot??
[Teclast X98 Air 3G] azooz2015:
Hi guys

I have proplem in my teclast air 3g

Every time try to flash my devices with diffrent rom

In beging its start saccessful after 10 percent

There message appear in my teclast (dnx mode filed and hardware cant handle )

And when the device start its going in to shell mode and i cant boot alin windows or android
[Teclast X98 Air 3G] cattolicboy:
Since you asking here in this thread in xda, I suppose you have interests about modding, so definitely the answer can be only one: AIR 3G!!!

It is also the most equilibrated and deeply tested device of the three.
[Teclast X98 Air 3G] phoenix10:
So thank you man...
[Teclast X98 Air 3G] Mikha777:
AirII = Faster Processor

Air 3G = You don't need 3G or GPS so you pay for nothing ;)

Air III = Newer but Lower CPU than Air II

So for me it's clear that if you can find a Air II it will be the best for you since it will be faster than the Air III and you will be able to run easily Win 10 or Android with the ton of Tutorial for the Air II. :cowboy:

Merry X-Mass.

If you think you will tweak it like Flashing BIOS... Make yourself a favor order at hte same time a CH341a progarammer + Clip, it cost less than $10 and if you brick your tablet during a flash you will not have 2 wait 1-2 months to receive it from China... I should have done that cause I waited 7 week to receive mine. For less than $10 it's worth it ! :p

Look at my previous post this week I've put a link from where I bought my CH341a for less than $10 with the Clip.

Merry X-mass :angel:

---------- Post added at 03:38 PM ---------- Previous post was at 03:34 PM ----------

Wrong he don't need 3G the Air II is the best FOR HIM since it don't have 3G/GPS it will use less power and will have more battery time than with 3G.

Also 3G and AirII are EXACTLY the same it just that the 3G/GPS module are not inside. Air III have a different design cause the CPU is not the same. :cool:
[Teclast X98 Air 3G] Mikha777:
Wrong he don't need 3G the Air II is the best FOR HIM since it don't have 3G/GPS it will use less power and will have more battery time than with 3G.

Also 3G and AirII are EXACTLY the same it just that the 3G/GPS module are not inside. Air III have a different design cause the CPU is not the same. :cool:
[Teclast X98 Air 3G] cattolicboy:
Wrong, your opinion is based on theoretical technical features, but at the moment we can't declare real benefits of one model over the other, if not basing on the reports of the users (most of them owners of the air 3g) in this thread.

Also, our main developer of android roms (mirek190) is owning an air 3g, so don't you think that the best suggestion, for compatibility matters, would be to propose this very model?
[Teclast X98 Air 3G] Mikha777:
It's NOT theoritical it's REAL and PRACTICAL, I'm not sure you have seen the 2 model of X98 opened side by side of if you really know what you are talking about.

I don't say my preferences or opinion: I talk bout FACTS,

REAL FACTS

not assumptions.

Cheers ! :silly:
[Teclast X98 Air 3G] cattolicboy:
The fact is that, statistically, I have seen more complains (especially for compatibility matters) for the air ii than the air 3g.

Again, the facts confirms that the air 3g is much more supported from the community and this, for me, it's the main reason to prefer it.
[Teclast X98 Air 3G] Mikha777:
You're NOT a reference... and

Your opinion

is

NOT

a fact :p

"There is a world outside your world that you have never seen" -Kamulito Matsagoshi
[Teclast X98 Air 3G] cattolicboy:
Ah yes, sorry, I forgot that you are "Mr. absolute reference".

It's good to know it, for me and others...
[Teclast X98 Air 3G] phoenix10:
Just a question its there any possibility to found x98 air 3g with Z3736F processor.. If yes were?
[Teclast X98 Air 3G] cattolicboy:
If you ask this, I suppose you are aware that the old Z3736F has a faster clock speed compared to the newer Z3735F and that this last one doesn't support anymore the GPS module.

It seems that the Z3736F is not in the production line anymore from teclast, so I think it will be hard to find and the only way to know it, is to ask directly at the sellers.
[Teclast X98 Air 3G] phoenix10:
Really thanks man..

I think i will go for x98 air 3g..

From were do you believe its the best online ship to buy it?
[Teclast X98 Air 3G] cattolicboy:
I bought it from geekbuying.com and it took 3 weeks to arrive (I had chosen normal mail delivery, no custom tax payed). Very satisfying service. ;)
[Teclast X98 Air 3G] phoenix10:
Thanks man :)
[Teclast X98 Air 3G] thek1ng:
Anyone have crashes with their tablet and having the screen looking like this?

https://drive.google.com/file/d/0B94XKXmHxVddcDNLWU1tRWs3Rzg/view?usp=sharing
[Teclast X98 Air 3G] csabee69:
Seems perfect for me :) Where can I find it and how can I flash it? My only flashing experience with this tablet was the 2.02 bios pack with a one click batch file (created probably on this forum :) I assume 1.03 was the factory bios and no flashing pack was created for that.
[Teclast X98 Air 3G] andyon2:
I have two big problems since this morning... :/

First: My micro usb slot has problems. I cant get my micro usb to usb adapter to work anymore. The cable seems to have a very loose fit... When i put it in, the teclast has volume problems under windows. It automatically drops the volume and I cant raise it then... Fortunately the charging cable still works...

Second: I first didnt recognized it, but when I start the tablet, I dont get the boot menu anymore... I have the dual boot version and it worked for almost 2 monthes now. Does anybody knows this strange behaviour?

Thx!!!
[Teclast X98 Air 3G] master.pumpgun:
Ok, as I have not enough posts to write something to mirek's development thread I would like to share it here!

Flashed mireks 4.4 v5.1 and touch wasn't working. Replaced boot.img file that is suposed to be repairing the problem - still no touch response.

Copied over boot.img from the stock kitkat and everything is working great.

Two months ago tried to flash mireks kitkat older versions that were for my C5J6 but had the same problem. Just replace the boot.img with the stock one and works!

After flashing 2 times the rom with not working touch after hard switch shutdown - the battery icon shows 3/4 battery??? But the battery is sure 100% full, this could be related to the batery issue many users have with battery drain. After booting to android battery shows 100% with voltage level of 4.297 and this is fine. I would like to know why windows has a diferent reading of the battery voltage???
[Teclast X98 Air 3G] Mikha777:
Just use my EZ EFI tutorial for flashing to whatever you want without batch file: http://sharetext.net/Wsb.html :cowboy:

Link to old Firmwares includinf v1.03 :

https://mega.nz/#!JoI2nJzY!vdeinj6jkGsrFZoqwXY0MFZOFtfUvgS6SjnM9QV2D4g :cool:

---------- Post added at 07:49 PM ---------- Previous post was at 07:43 PM ----------

For the fist problem it could be just the solder joint from X98 so resoldering it could fix it easily you can do it youself or ask to a friend who is comfortable with soldering.

For the second point: You have an option to always start with the OS of your choice that bypass the menu for convenience maybe you setup the option inadvertently. Press Volume button at the same time with the power button your Dual boot menu should appear, :angel:
[Teclast X98 Air 3G] Mikha777:
For the fist problem it could be just the solder joint from X98 so resoldering it could fix it easily you can do it youself or ask to a friend who is comfortable with soldering.

For the second point: You have an option to always start with the OS of your choice that bypass the menu for convenience maybe you setup the option inadvertently. Press Volume button at the same time with the power button your Dual boot menu should appear, :angel:
[Teclast X98 Air 3G] andyon2:
Thank you a lot :)

I fortunately have a friend who knows to solder ^^

I hope, he can help me.

I will try the trick with the boot menu this evening!!!
[Teclast X98 Air 3G] csabee69:
Thanks for the help!

I've made the update according to your description but something bad happened.

"Error 204 Data verification mismatch"

After the error message I've shut down the tablet and now I'm unable to power it back on.

I assume I will need the unbrick method above to get it back running?

Thanks!
[Teclast X98 Air 3G] swiatus85:
Hi,

I just received mine dual AIR III 3G, version C5J8 with bios 2.05 from banggood.

I delated all partition and install clean W10 Education version.

Could you please advice all working drivers expecially for touchpad and gsensor (rotating etc.)

thx
[Teclast X98 Air 3G] Mikha777:
Yep it's bricked :(

Look in my messages from last week, you will find a link to order a CH341a + cable for less than $10 on ebay, you will also find a tutorial with all the softwares needed to re-program your tablet, it's very easy you only need to take your time. :)

If you have any question jusk ask me ! :cowboy:

N.B.:

If in the future you flash the firmware and have a "missmatch error" just DON'T shutdown the tablet,, you just have to retry till it work, you only shutdown the tablet when the flashing is successful.

---------- Post added at 07:45 PM ---------- Previous post was at 07:37 PM ----------

Here's the drivers for Win10:

https://mega.nz/#!EtQAHboQ!_0yySnv-dN4_sBr1Qp3KsZWbXVsIf0Dj6SouzbqV0E4 :angel:
[Teclast X98 Air 3G] Mikha777:
Here's the drivers for Win10:

https://mega.nz/#!EtQAHboQ!_0yySnv-dN4_sBr1Qp3KsZWbXVsIf0Dj6SouzbqV0E4 :angel:

---------- Post added at 07:48 PM ---------- Previous post was at 07:45 PM ----------

Just use the EFI Shell : http://sharetext.net/Wsb.html :angel:
[Teclast X98 Air 3G] Mikha777:
Just use the EFI Shell : http://sharetext.net/Wsb.html :angel:
[Teclast X98 Air 3G] mikbe:
It seems I lost Windows 10 after flashing latest ROM without data wipe and repartitioning. Flash went well with no errors and Android works perfectly. Windows logo disappeared from boot menu. [MENTION=2198172]mirek190[/MENTION] did you change the default partition table in your latest? I flashed with MFT. My slate is C6J6.
[Teclast X98 Air 3G] swiatus85:
It's look that evrything works good expect CAMERA, and I can't instal WiDi.

Camera shown only black sreen, widi can't instal because my drivers are not supported.....
[Teclast X98 Air 3G] PeterTech:
Yes Mirek has changed his way of flashing to try and fix the battery meter problem described here http://xdaforums.com/x98-air/general/how-to-fix-inaccurate-battery-meter-t3266746 but a side effect for some is that the windows logo in boot menu can disappear if windows has been installed fresh from ISO. (Windows is not deleted just the boot option)

To get the windows logo back in the boot menu, you can try to run bcdboot c:\windows from your installation ISO at command prompt. (This has worked for some others)
[Teclast X98 Air 3G] maelever:
it works on teclast x10 hd?