yashsingh1/xdaforums huggingface dataset:
[Teclast X98 Air 3G] Kryogen:
Just flashed official 1.0 android system image but windows logo disappeared, i can see my files are still there from the recovery prompt but can't boot windows either from bios or boot selection menu, i can only boot from the windows usb stick or android.
[Teclast X98 Air 3G] benbraun322:
Your going to have to firstly install Android, the good news is that you can install any rom you want (your storage is probably gone already :/ )

What model tablet do you have C#J#?

Find an android ROM that you want and is compatible with your model number and download it to your computer.

That's the next step.

I strongly recommend you watch Hendrickson's YouTube video about how to flash dual boot, you can skip the flashing BIOS part because you already have the dual boot BIOS.

You can email me at ZackBBraunstein@gmail.com and I'll help you out over email, it's easier and faster and less annoying for other users that way.

From my BlackBerry Z30 or Teclast X98 Air 3G
[Teclast X98 Air 3G] soudara:
Instal kingo root in your PC , in you tablet enter in developper mode check debogage usb case , open kingo root in your pc conect your tab with usb normally kingo root conect to your tab and ask you for root it click yes after 2 minutes you tablet is rooted , go to playstore install super su and update binary in normal mode reboot your tab and now you are root
[Teclast X98 Air 3G] ujensen:
Reboot to windows from Android ?

Hi,

Is there any APP for Android that i can use to reboot directly to windows ?

I think i saw an APP like this in loliloop room, but i'm not sure.

I'm using mirek room. It has no option to shutdown or reboot to windows when i press the power button, so it's not simple to reboot from Android to Windows.

Thanks,
[Teclast X98 Air 3G] benbraun322:
Honestly, no.

You can however install xposed framework and get the shutdown button back.

From my BlackBerry Z30 or Teclast X98 Air 3G
[Teclast X98 Air 3G] sandroj:
Use 'Power Toggles' app from play store. You can get the shut down button back.

Sent from my Teclast X98 Air 3G (C8J6)
[Teclast X98 Air 3G] never000:
inverted front camera

Hello I have a c8j6 with firmware SUPERCOWZ X98 and work very well, but the front 2 mpx camera is inverted, I have change camera_profile.xml but nothing.

What else can I do?

p.s.

I have change original firmware because gps don.t fix position.

Thank you for help

sorry for my english I'm italian
[Teclast X98 Air 3G] wangiles:
I believed all the current x98 is with model c8j6. Mine too. I am thinking of optimising it but the fixes for both windows and android are still not stable yet for the commit. Or am I wrong to deduce this? :)
[Teclast X98 Air 3G] never000:
have you problem whith gps fix?
[Teclast X98 Air 3G] wangiles:
No problem on the GPS fix for the original ROM. I dare not use any other ROM. But I am inclined with mireks.
[Teclast X98 Air 3G] never000:
Have you c8j6 64gb with last firmware?
[Teclast X98 Air 3G] wangiles:
Yups. I have that one.
[Teclast X98 Air 3G] velow:
Me too. C8J6 Dualboot 64Gb. Have you got any problem to watch tablet connected to TV via HDMI in windows mode?:crying:
[Teclast X98 Air 3G] wangiles:
Didn't try that out though. No HDMI cable. Sorry
[Teclast X98 Air 3G] aek100:
I have also got C8J6 64 GB.

HDMI works immediately both on Android and Windows (no need for drivers, software or settings).

In Android the image to the screen is 4:3 (black bars left and right on TV), but in Windows as soon as the HDMI cable is connected the tablet screen goes 16:9 (black bars up and down on tablet) so it covers completely the TV!

When the cable is disconnected the tablet goes back to 4:3.
[Teclast X98 Air 3G] velow:
In android the only way to watch it is starting android with the cable connected and if i disconnect it have to reset android again , and in windows i cant do anything to wath it, i proved with 3 differents TVs and monitors, and with different HDMI cables.

In windows mode, have you got to select anything in windows as expand destop with a secondary screen, or something like that?
[Teclast X98 Air 3G] aek100:
Nothing to select, both in android and windows.

As soon as I connect the cable the image is shown on TV (16:9 with Windows), after disconnecting the cable Windows goes back to 4:3 automatically.

Even during boot there is image on TV (android - windows selection) but at that time the tablet is blank and all you can do is watching the loading of the OS.
[Teclast X98 Air 3G] Zyrus123:
Drawing on this thing ?

Hi guys, so to bother with silly questions, but... How well is this thing working with painting software like paint (lol), Photoshop, Auto Cad and etc. ? I looked all the internet and XDA threads , but even though everyone compared performance, screen quality and etc., no one actually said anything about touch input details or even tried to draw with pen.

I mean, this thing is a beast for its prices and I see it as poor man's Microsoft Surface. I newer had a tabled before and think it would be great device to start, but I am carefully deciding if its a device I need.

In short will I be able to draw like this?

Youtube: watch?v=Lmg7o0lRkbE
[Teclast X98 Air 3G] wangiles:
Photoshop is ok. Usable. Lower CS versions recommended.
[Teclast X98 Air 3G] 仰天坏笑:
Anyone has the useful recovery for this device？？？？

Can some try to make one ?

Thanks!!!!!!
[Teclast X98 Air 3G] bego9:
i've got my tablet in april with c5j6 64gb x98 air 3g

edit: i put my original rom back from merk because of the camera, headset and probably wifi issue because keep dropping.

So far so good.
[Teclast X98 Air 3G] mr.pants87:
I'm glad I wasn't the only one. After I switched to lollipop wifi has been working great.
[Teclast X98 Air 3G] Okluzhion:
How is Lollipop compared to KK at this stage? Is there any improvement in stability, smoothness, etc.?

Sent from my eXposed C6603
[Teclast X98 Air 3G] keshava108:
IMT doesn't see HG8N

Hey

I followed techtablets video tut, (the part to install android rom), booted into windows allowing unsigned drivers. Fastboot sees the device and i can initiate flash-system_only.xml, but i always get data transfer failure. tried all different usb ports and cables.

Flamin' IMT doesn't see the damn tablet so i haven't been able to use that. Any ideas?
[Teclast X98 Air 3G] mdabar:
Hi all,

I've got this tablet around 10 days ago. For the moment I'm very happy with the overall performance and the Dual Boot works really well :D

I have done my own review that you can read here -> http://xdaforums.com/android/help/t...-1-android-t2966208/post60429988#post60429988

For the moment I'm just trying and "learning" the Windows side, since it's been years without using it :P

But I'm looking forward both updates: Android Lollipop and Windows 10. Any ideas on how to do without affecting the dual boot?

Regards!
[Teclast X98 Air 3G] jcespi2005:
For android part, you'll need to use an XML and TBL files modified to not partition the internal memory. For Windows, just select the correct partition on install.
[Teclast X98 Air 3G] Patmic:
Try Links2SD

I use Links2SD to free up space on this tablet. It happens to include a widget that has Power off, Quick Reboot, Reboot, Recovery and Bootllader options. Kill 2 birds with one stone with that app...
[Teclast X98 Air 3G] Patmic:
SIM Card (Sprint)

Going to ask a creative question here...

I have an old Sprint data plan with unlimited data and an extra line that I'm not using. I have the SIM from the line. Is it possible to get this to work in this tablet? Has anyone tried this?

Thanks in advance for any ideas,

Patrick.
[Teclast X98 Air 3G] nrdmtt:
Just tested Lollipop on my X98 Air 3G (C8J6 64Gb). What I have done so far:

Rooted :D

All chines apps removed

Updated Google Play Services

Updated Play Store

Installed Link2sd and made play services and store system app

I have uploaded the root bat on my dropbox. You can download it there

(all credit goes to the user on teclast official forum. I have just put English sentences in root.bat and updated supersu to 2.49)

The only bug that I have found is that the camera auto focus that does not work.
[Teclast X98 Air 3G] HunchedoverPhone:
I have the c5j6 and I'm quite happy with it. A lot of the issues that plauged earlier versions are gone out of the box. There are no play store issues, no 3d issues in Windows, it runs at 60fps in Windows and the battery seems pretty good (5-7 hours of chrome and word use on Wifi with Bluetooth - Civ 5 will kill the battery quick though). I had to force stop the default launcher in Android in order to get the Google now launcher to work. I do find that this rom isn't as smooth as lollipop on my nexus 10, but that is the best rom I've ever used period. Cameras absolutely suck on this tablet but everything else seems on par with other Intel atom devices I've used - the Asus t100. The screen us to die for.
[Teclast X98 Air 3G] colo4you:
Just check the new Lollipop BIOS.

It's v2.0.2 which created on 21 Apr 2015. Hope that the official one will be released soon
[Teclast X98 Air 3G] ImJamIN:
Where i can find it? Can you upload somewhere?
[Teclast X98 Air 3G] xirc0m:
Any updated Custom Android ROM for X98 AIR II ( Tried installed HG6N Custom ROM)

Any updated Custom Android ROM for X98 AIR II ( Tried installed HG6N Custom ROM) ?

After Installed HG6N Custom Version Android, I seem to have a problem running updated FACEBOOK App ... FB App claims they don't support the Android version and I need to update it.... BTW I have Dual-Boot the Hardware HG9N using HG6N Custom ROM + W8.1 ... Anyone could help & input on how to update the Android ? THANKS
[Teclast X98 Air 3G] colo4you:
As far as I know, in order to modify the BIOS be able to use on all models. These 2 bytes need to be modified from "FE FE" to "FF FF". (Normally it's located at the address 0x400D and 0x400E. However, sometime it's not at these addresses. So Just search for the keyword "MFS" to be sure) The BIOS from Teclast forum was already modified these bytes to "FF FF" so I took a risk to flash it on my C8J6 machine. It seems that it DOES NOT brick my machine. When I start the windows 8.1, I notice that Win try to reinstall some drivers (I think it reinstalled Display driver because the screen was quite slow at first). However, after a reboot, everything seems to work fine. (Display OK, Orientation Sensor OK, TouchScreen OK, GPS OK, Front Camera OK, Rear Camera OK, Wifi OK, Bluetooth OK - Tested on both Win8.1 and Android 4.4.4)

I am checking if the battery drain issue is fixed in this BIOS version. I will report the result.

(Update: It seems that the battery drain is fixed too. Normally, with BIOS v1.07 DualOS (for C8J6), the battery drain in sleep mode of Windows 8.1 was about 3% per hour which was not acceptable at all. So I switched back to BIOS v1.03 WinOS (for X98 Air II - HG6N), the battery drain was dropped to 0.5% per hour. However, there was a wifi speed issue. After I install the wifi speed fix from official Teclast website, the battery drain became 1% per hour. Now I tested BIOS v2.02 (C5J6) for about 30 mins, the Sleepstudy reports that no battery drain at all which means that it's now much better than the stock BIOS (v1.07). I will update again when it sleep more than 3 hours to see how battery is dropped

Update2: after testing it for a night, I can confirm that the battery drain issue is fixed. The drain rate is less than 0.5% per hour which is a bit better rate that what we get from HG6N bios. See the sleepstudy graph in attachment.

Updated Issue: There was a "Teclast Switch OS" program (can download from the official Techlast Forum. I guess it only supports BIOS v2.02 ???). It is used for OS switching from Windows to Android with a single click from Windows OS. The switching method is normally a restart with a forced android OS. So it still takes about 2-3 mins to switch from Win to Android which is not very useful enough IMO. The issue occurs when I switch back to Windows. The date/time in Windows mode is wrong after switching back.

Another small issue I just found is a battery cell report. It only report one cell which is 14,440mWh not 31,xxx kWh. I will find a way to fix it.

The BIOS is uploaded in the official Teclast forum (http://bbs.teclast.com/forum.php?mod=viewthread&tid=396392&extra=page=1&filter=typeid&typeid=240). The BIOS is "X98_Air_3G_Dual.bin" located in the compressed file here, http://pan.baidu.com/s/1fM5Q2
[Teclast X98 Air 3G] nrdmtt:
Thank you for the update.

I have the C8J6 model too. How did you flash the bois? (Android, windows or from another pc?) I might try to flash it as well.

--- EDIT --

I have just updated my C8J6 bios, with the new one provided with lollipop release. Everything went smooth. Time for testing the battery drain problem.
[Teclast X98 Air 3G] colo4you:
I only flash the BIOS while running windows. I have not touched Android and Windows partition yet. (just use the one came with my machine)
[Teclast X98 Air 3G] keshava108:
I flamin' did it.

I tried a everything, virtual box win 7, fresh win 7. Finally it only workd when i connected the tablet to a usb hub hahaha random. Also probably helped that I put the right device ids the soc one and the one generated when connected in droidboot mode. Oh and i had to use the "old" manufacturing tool. Damn 15 hrs of reading and annoying ****. I think stock rom was pretty cool anyway, once i froze stuff with titanium, so now I have mirek rom and waiting for sweet lollipop, thanks contributors

---------- Post added at 08:52 PM ---------- Previous post was at 08:17 PM ----------

Actually, is there a "system flash only" way to go back to stock? Would that be using "fastboot flash system system.img" with the stock rom downloaded from teclast?
[Teclast X98 Air 3G] XICO2KX:
Thanks for the really great news, man! :highfive::victory::good:
[Teclast X98 Air 3G] djmvt:
well that went horribly wrong :(

tried flashing the 2.02 dualboot bios with tools found on techtablet in win 8.1 mode, flashing went ok, no errors but after a restart nothing...

tablet isn't booting anymore, no fastboot simply nothing. pc doesn't recognise the tablet as well.

I am afraid I flashed it the wrong way and bricked my device...

Just ordered the bios flash tools to flash it back the hard way, gonna take a while to get it but have to be patient hahaha...

live and learn...
[Teclast X98 Air 3G] insertvodkahere:
Whats your tablet model?
[Teclast X98 Air 3G] djmvt:
X98 air 3G 64GB c8j6.
[Teclast X98 Air 3G] azzy12:
happened to me as well :( Tried to upgrade my bios from 1.03 to 1.05, successful in windows but bricked upon restarting

Ordered the bios flash tool ~2.5 weeks ago and still waiting :(
[Teclast X98 Air 3G] colo4you:
Have you tried to start the tablet by pressing and holding "power" + "vol up" button for 10-20 seconds?
[Teclast X98 Air 3G] djmvt:
Yes, tried every combo possible for at least 30 secs each. Too bad, just wrongly flashed. Ordered the tools already, can take a month to arrive hahaha...

It's just a tablet, back to using the laptop for the next couple of weeks ;)
[Teclast X98 Air 3G] ZeAuReLiEn:
I updated my 64GB dual boot C8J6 tablet with the 2.02 bios. No bricking (hopefully !), I'll see if the drain under windows is fixed, and if everything works smoothly within the next days
[Teclast X98 Air 3G] Wallace4793:
Is there a planned bios upgrade for the air ii to solve the drain issue too?
[Teclast X98 Air 3G] kostas-k:
Please, check and inform as to ensure for battery drain, as I see, there is a risk trying to update BIOS. I have tried to update bios in the past only using X98 Toolbox through my PC and everything went ok.

Are we sure the BIOSy in Teclast forum if for all tablets?

"Στάλθηκε από το Sony Xperia Z1 Compact"
[Teclast X98 Air 3G] keshava108:
[/COLOR]Actually, is there a "system flash only" way to go back to stock? Would that be using "fastboot flash system system.img" with the stock rom downloaded from teclast?[/QUOTE]

ok, obviously, this thread has the lazy noobs, casuals and the awesome power users, I'm just gonna give a summary of the errors and eventual success for googles sake.

Bios: already had dual boot bios on HG8N, scared to flash bios after reading this thread of late

Android install:Accidentally wiped windows when I thought jce rom "androidonly" flash meant system only. Had data transmission error in fastboot and not recognized by IMT until i connected to my pc via usb hub (unpowered), and made sure correct Vid and pid (HG8N, model number on back)

Windows install: Had error w:\recycler\scratch when trying to use the automatic wimboot from teclast site (apparently there's a way to edit partitions and scripts to enable proper auto install, was beyond me). Downloaded official iso from microsoft and did it the techtablet guy way. Initially had error, "device drivers missing", redid iso to usb using rufus and also put usb on first slot of hub. Was naughty with activation.
[Teclast X98 Air 3G] ZeAuReLiEn:
So far on Windows I lost 3% of battery while in connected standby for 2.5 hours. Way better than what I used to face, but maybe I've got a remaining issue I'll need to review.

Regarding the BIOS in the Teclast forum it was mentioned that it was for C5J6, but it worked perfectly for my C8J6. But I can't guarantee it will be the same for everybody.

I flashed it from a Windows laptop connected through USB to the X98 which was running Android at the time. I started the .bat file at the root of the .RAR file, pressed ENTER then 2 (the line mentioning "BIOS", it was all in chinese...).
[Teclast X98 Air 3G] lokkiyo:
I recomend you to install the HG9N original ROM, and then edit the ROM with RootExplorer, in almost 2 hours i got my tablet customised by this way.

BTW, does your front camera work in Win8.1??

[Sorry for my English]
[Teclast X98 Air 3G] colo4you:
I tested it for more than 12 hours the result is even better than BIOS HG6N v1.03 without WiFi fix (by using HG6N bios, we need to sacrifice Android for a battery because it is not a dual boot bios)

However the issue I got is that the battery power reported is only 1 cell which is about 14,440mWh not 31,xxx kWh. I will find a way to fix it

However this fix makes the tablet becoming very useful again. What a good news!!!
[Teclast X98 Air 3G] colo4you:
Maybe this is just for information.

I notice that there are more than one version of C8J6 model. I saw someone posted a dumped bios of C8J6 in this forum. The inside of BIOS structure is different from mine even if the date and version are exactly same. Not sure if this is why someone brick the C8J6 by flashing 2.02 bios. But someone did not.

I will try to find a reason for this and keep reporting...

So for now I can't guarantee that flashing C5J6 bios on C8J6 will not brick the tablet....
[Teclast X98 Air 3G] louis89:
Worthy to buy?

Hi guys, I am thinking of selling off my iPad Air 16GB and get the Teclast X98 Air 64GB. Do you think that would be wise? Am interested in getting this due to :

1. Increased storage (also expandable with MicroSD)

2. Windows 8.1 - Windows apps

3. Higher flexibility compared to iOS

4. 4:3 aspect ratio

I will be using it to read PDF and epub ebooks, comics (CBR,CBZ), movies, TV shows, browsing the internet... Basically the stuffs that I am using my iPad to do now.

I would also like to use this as a downloader (the usual http and torrent) directly into the MicroSD so I can remove it and transfer to the computer upon completion. Therefore, the few concerns I have :

1. Will the battery drain a lot while downloading at night using WiFi? (screen off and no other apps running in the background other than downloader, eg, FreeDownloadManager and/or JDownloader. Would be great if someone here had been using it as a downloader so I may know how long can it last as a dedicated downloader - 6, 7, 8 hours... 12 hours? :confused:

2. Will the battery drain more when accessing the MicroSD compared to the internal memory?

Thanks for your help guys!

ps: I used another Chinese tablet in the past - Ainol Elf 2, which gave me tonnes of problems, such as overheating battery, battery draining even with no active apps in the background, and weird touch screen issues while charging (touch not registered or random movements). After 2 months of neverending torture, I finally sold it off and bought a Samsung Galaxy Tab 2, which I subsequently discovered 4:3 aspect ratio is more useful for me compared to 16:9... Which is why I am using an iPad Air... For now. :D
[Teclast X98 Air 3G] colo4you:
Can you tell me how you install lollipop on the tablet? Did you flash only the system.img and use the rest of the file (recovery.img, boot.img, droidboot.img, esp.img) from the stock version (v4.4.4)? or you use everything from the lollipop image provided in the Teclast forum? Thank you in advance

EDIT

------

It's okay now. I did Flash everything from C5J6 Lollipop android image. It's quite tricky at first because it will struck at the Intel Inside logo. I cannot access Windows anymore because I cannot access the OS selection screen. However, I did fix it by using doing follow steps. (hope it will be useful for other people.)

1. connect keyboard USB to the tablet

2. start the tablet by press and hold the power button for about 5 seconds

3. when there is something on the screen, just press DEL on the keyboard repeatedly

4. we will enter the BIOS/UEFI screen

5. just exit the BIOS/UEFI without save

6. we will be in the OS selection screen

7. just select Android

8. The android will be started with the application optimization screen that will count from 1 to 41 application (if you are using Lollipop for C5J6, it will be 51 applications if using C5J5)

9. Wait and wait. ...... done ..... Enjoy Lollipop.....
[Teclast X98 Air 3G] SuperRockmen:
I have the c8j6 64gb x98air 3g model. I can only say that the battery drains big time in windows... I can play a video and it drains 75 percent within 1 hour. That's after installing the battery Meter and monitoring the progress which states that its drains approximately 5k mw! Is there any fix for that? Now it cannot even last a movie length!
[Teclast X98 Air 3G] nrdmtt:
I do not know it this could help, but I have done the same.

What I have done on my C8J6 is

Install Android driver and IMT as described here (min 1:45). I had to install a newer version of the IntelAndroidDriver (v1.9), because my tabled wasn't recognized with the v1.5 version.

Download the LolliPop Rom from here

Install it with IMT (this will wipe the tablet) (SOCDevices: 8087/0A65 AndroidDevices: 8087/0FFF)

Rooted with this

Installed Win 8.1 Pro and all the driver

Booted on Lollipop and connected to my laptop (adb debug ON)

Updated the Bios with this (The .bat file is in Chinese. Just press "2" and wait when asked)

OFC, I can not grantee that this will work.

For installing widows u need:

An USB key (8Gb). Just download an win 8.1 pro iso. I used Rufus for creating the bootable usb key. Select MBR for UEFI.

USB Hub

Keyboard and Mouse

Just connect everything to the tablet, press "DEL" or "ESC" and enter into the BIOS. Go to "SAVE and EXIT", and under "Boot override" select your usb key.

I also have made a custom driver archive, with all the updated driver, searched one by one by myself. (currently uploading, will post the link later).

Install windows after you have installed android, or u will lose everything due to the repartitioning.

--- EDIT ---

Here we are : Drivers
[Teclast X98 Air 3G] djmvt:
Have to wait for the programmer to arrive, could take about 4 weeks. So for now no more teclast tablet. Oh and for people that have bricked the device: although in a YouTube video it is explained that it is really easy to open up the tablet with a guitar pick my screen cracked during opening. Talk about bad luck haha.

I am going to wait for the programmer first, let's see if it will come back to life, and if it does I have to order a new screen too...

Now let's find a good tutorial how to flash the bios in system...
[Teclast X98 Air 3G] c0manche:
Found this web page explaining how to unbrick complete with tools for the programmer

https://everythingisafile.com/?p=173

and in this video he points to the chip to reprogram https://www.youtube.com/watch?v=841pMJC_QOk