yashsingh1/xdaforums huggingface dataset:
[Teclast X98 Air 3G] grigoris_a:
Download the dual boot that has the .bat ( flasher) and replace the .bin file(bios file)

Edit flash.bat to correct the name of the bin(put the name of the bin you want to flash)

Then open cmd as admin and run flash.bat.

From Greece using TECLAST X98 air 3G C6J6
[Teclast X98 Air 3G] Petepe10:
The OTA is an incremental update.zip, the site update a full rom. Could be the same. I have no interest in starting over again from scratch, but testers welcome indeed. Would like to know what the WIFI improvement is, as waking up is sometimes erratic.
[Teclast X98 Air 3G] germancf:
I understand you want to tell me... first download X98 3G Air Air II Dual Boot Bios Flasher bat that contains the installer (.bat)

second download my X98 Air II (HG6N) Bios File for Windows 8.1 / 10

third edit the bat file to write in the second line of the edit the x98_air_II.bin and does not charge X98Air3GDuala.bin <<< - this does not charge can i change with the notepad or i need notepad++
[Teclast X98 Air 3G] grigoris_a:
You can edit with notepad flash.bat and replace X98Air3GDuala.bin with x98_air_II.bin

From Greece using TECLAST X98 air 3G C6J6
[Teclast X98 Air 3G] tumich91:
Hello,

I've bought Teclast X98 3g Air from Anna Fang with dual boot in 199$. Today arrived but when I turn on it run Android.. Don't asking for Windows. On Android i have 10gb internal rom and free 5.8gb so 2 partition should be on tablet but why not asking for change to Windows?

Thanks
[Teclast X98 Air 3G] mnitstanley:
Anybody tried this new BIOS for X98 Air II (HG5N) (HG6M) or X98 Air 3G (C6J6) (C8J7) products ?

This update states that it is compatible with Air II as well as Air 3G Android models.

You need to be on latest Android 4.4.4 in order to flash that BIOS.

Someone please report the BIOS version included in this update.

So if X98 Air II BIOS has no battery drain, then it shouldn't be there for X98 Air 3G too. Or does it mean that all those Air II models and Air 3G models are Android only ?

What is the part number of X98 Air II Windows ?
[Teclast X98 Air 3G] thehobit:
Bluetooth failed to start

I installed 1.0.94.2 found in this tread, yet driver still failed to start

status_device_power_failure

Any hint? Thanks
[Teclast X98 Air 3G] SUMMERBREEZE:
Thank you bro. I maybe consider later to flash windows only bios to my C9J8 (DUAL BOOT) and let everyone know my experiences :good:
[Teclast X98 Air 3G] mnitstanley:
Don't panic.

We want to remind you that this is the most frequently asked question in this thread. So you shouldn't have asked this question again.

Nevertheless, we are happy to help.

In return, you can help the next person who shall ask this question again.

Because most active users are bored to answer this question.

[IMG="Image Courtesy: OKQI Anna Fang AliExpress store product page"]http://g03.a.alicdn.com/kf/HTB1AEi_HXXXXXX0XXXXq6xXFXXXh/201104755/HTB1AEi_HXXXXXX0XXXXq6xXFXXXh.jpg[/IMG]
[Teclast X98 Air 3G] germancf:
Ok i just load the new bios x98_air_II.bin ..... and now? where's android?
[Teclast X98 Air 3G] grigoris_a:
Now you will flash dual boot bios again.

I suggest this one https://mega.co.nz/#!oBlChRCB!HreEhUaTS_z3LAd1nZ8dLeLEazQQYoaDbdgEAvxbzjc

From Greece using TECLAST X98 air 3G C6J6
[Teclast X98 Air 3G] germancf:
Dualboot Bios Tested C6J6 And C8J7 Dualboot Bios Tested C6J6 And C8J7 (3.6 MiB)

X98 Air 3G Air II Dual Boot Bios Flasher bat X98 Air 3G Air II Dual Boot Bios Flasher bat (3.9 MiB) > <<<<----- this, the second.

Ok say me good luck :D
[Teclast X98 Air 3G] olibertu:
It's true, temperature is growing too fast when charger is plugged and it's independent if it's Nokia 1.2A or original Chinese 2.5A power supply. I found out, that good "stress test" is run youtube videos in google chrome with connected charger - it always shutdown/suspend tablet.
[Teclast X98 Air 3G] hartamlimit:
lost imei x98 3g

ive managed to flash android but now baseband is unknown . i think i lost my imei ... how to get it back ?
[Teclast X98 Air 3G] SUMMERBREEZE:
thanks! this should be in the first page and sticky :good:
[Teclast X98 Air 3G] germancf:
yes i have dual boot now but.... touch screen in android still does not work :crying::crying:
[Teclast X98 Air 3G] grigoris_a:
Then maybe is a controller issue as mentioned in the Russian forum and work differently in Windows and you don't have issues there

From Greece using TECLAST X98 air 3G C6J6
[Teclast X98 Air 3G] SUMMERBREEZE:
Why dont you return your tablet to the selelr and get refund???
[Teclast X98 Air 3G] germancf:
a controller? what can i do? or only can wait

im from spain and to send to china is one month and the chinesse to here otro month (two month) and the chinesse can say "this person install bios, roms, wipes. .... unoficcial...." and not refund :(

---------- Post added at 10:55 PM ---------- Previous post was at 10:51 PM ----------

the first day everything worked fine (android and windows), was using the android browser and screen froze, I had to turn off (ten second in the button) and resstart in android desn't work the touch screen (only plug a mousse i can use android)
[Teclast X98 Air 3G] grigoris_a:
There is no way he will know if you installed bios etc... If you don't tell him.Now time is an issue but you probably have a hardware issue

From Greece using TECLAST X98 air 3G C6J6
[Teclast X98 Air 3G] germancf:
this is normal???
[Teclast X98 Air 3G] babsevensix:
Try to change launcher
[Teclast X98 Air 3G] germancf:
and the left capture??
[Teclast X98 Air 3G] grigoris_a:
Left is normal.Every time you switch os it appears.Did you try official rom?
[Teclast X98 Air 3G] rofejo:
I have the same problem and I cant update it too.
[Teclast X98 Air 3G] germancf:
no ididnt
[Teclast X98 Air 3G] SUMMERBREEZE:
in windows, can you use the touch screen with no problem?
[Teclast X98 Air 3G] germancf:
yes in windows, bios and dual boot i can work touch screen no problem.

The problem is in android mode only
[Teclast X98 Air 3G] SUMMERBREEZE:
then it is not a hardware fault. something else :confused:

maybe flash stock rom and see how it behaves
[Teclast X98 Air 3G] germancf:
i dont know, i desesperate.

i try install 3 diferent roms (1st page) and nothing
[Teclast X98 Air 3G] HDtracer:
Have you tried flashing a complete android rom?

Seems strange that windows works and android doesnt, i.e, bios must be ok on some level.

Maybe there is something in the android bootloader thats corrupt.

Sorry, just saw your post above.
[Teclast X98 Air 3G] stan788:
Can't install windows on dualboot

I flashed bios on my tablet to dualboot and mirek X98 Air 3G (C8J7) mirek190_v3.1 with partition table DATA_5_GB_SYSTEM_1_GB_CACHE_100_MB but when I try to install windows 8.1 I don't have any unallocated partition only partition with assigned letter so I can't install windows. I don't want to delete any of existing partitions because I don't know which one is used by android - my question is how to find the biggest partition? I also reflashed to lite rom and again X98 Air 3G (C8J7) mirek190_v3.1 and still don't see unallocated partition. Thanks for help
[Teclast X98 Air 3G] SUMMERBREEZE:
Could you please share a photo of windows install screen?
[Teclast X98 Air 3G] SUMMERBREEZE:
Your photos dont tell me anything, it seems you are at a wrong place.

Watch this video from 8:10 min

http://youtu.be/rLjayeQJg4Q?t=8m10s
[Teclast X98 Air 3G] babsevensix:
Yesterday my table's battery show 18%. Tonight I put tablet to charge. After 6 hours my tablet show 58%.

My charger output is 5-15V = 2 - 1.2A

It's normal?

---------- Post added at 08:05 AM ---------- Previous post was at 07:22 AM ----------

I don't understand, now battery show 72%
[Teclast X98 Air 3G] rwanek:
I know thus thread is read also by air II owners and this is important for me - Can anyone with HG5N (originaly android) check IF HDMI out is working in Windows 8.1? Mine is not working and seller claims it's because this tablet is android version and i should flash android back.

Thanks

via tapatalk
[Teclast X98 Air 3G] zarminas:
Try power off android or shutdown windoows and then charge battery.

& I would like not to miss this chance to ask about this tablet with dual boot:

I dont need the Android, but there is no option to buy this tablet only with Windows . And android OS takes place on eMMC which is needed to use in windows. May anyone knows the method with minimal risk and headache to convert this tablet to ONLY WINDOWS tablet and clear off the eMMC space from android partitions without reinstalling windows ?
[Teclast X98 Air 3G] grigoris_a:
Yes.You go to Disk management in Windows and delete all android partitions.And since you want Windows only you will probably need to change bios(with the data until now) or live with the battery drain.

From Greece using TECLAST X98 air 3G C6J6
[Teclast X98 Air 3G] Akitoyo:
Guys, my X98 Air 3G C9J8 arrived today :) I already ran an antutu benchmark on it and got ~32000 points, though I got a thermal throtting warning while doing the benchmark. If have to add that I charged it while doing the benchmark. I'll do a few more later. Another thing I noticed is that I can't get into the dual boot menu, I already tried pressing power + volume up while booting but it still boots into Android. But Android shows only 10GB disk space so there should be another windows installation. Anyway, I will charge my Tablet now and test it when it has more battery :)

---------- Post added at 01:19 PM ---------- Previous post was at 12:24 PM ----------

I did another 2 benchmarks with Antutu, worked fine no freezes. Futhermore, I got dual boot working.
[Teclast X98 Air 3G] kosrica:
I' ve started the discussion with the supplier today on aliexpress and of course they've send me the apk file fastmode to lower gpu frequency to 400. I've attached the file (3DGame update) if anyone wants to use it (I think it's the same from the first post), this one works with Teclast update client.

My question is if I want to try to change the gpu frequency let's say to 500, what do I have to change from the apk?

In the attached .zip archive in system\bin I've found a script preinstall_cleanup.sh with the following commands:

#!/system/bin/sh
log -t PackageManager "Start to clean up /system/preinstall_del/"
mount -o rw,remount -t ext4 /system
rm system/preinstall_del/*.*
mount -o ro,remount -t ext4 /system

su
echo 400 > sys/devices/pci0000:00/0000:00:02.0/drm/card0/gt_min_freq_mhz
echo 400 > sys/devices/pci0000:00/0000:00:02.0/drm/card0/gt_max_freq_mhz

It is enough to change echo 400 to echo 500 to lower the gpu frequency from 600 (default) to 500?

If the apk is signed do I have to do something else after I make this change to the script in order to apply it via normal Teclast update tool?

Thank you!
[Teclast X98 Air 3G] elvisi:
Hi all!!!

I've made a custom ROM for my Teclast x98 air II Dual Boot (HG7N) based on the latest teclast update (Android 4.4.4-V1.02) and JCEspi2005's air 3g custom ROM.

Description:

Fully rooted (Just launch SuperSU and update binary)

Deodexed

Zipaligned

Chinese Apps deleted (system should boot EN or ES, choose when downloading)

Nova Launcher as default Launcher

Google Play Fixed (integrated on System partition)

Audio fix by Frontier

Viper4Android

ES File Explorer

DPI: 264

Three XML, one stock, nopartition and the other one to flash SYSTEM partition

Original HG7N partition.tbl

Download:

X98 Air II (HG7N)-Android4.4.4-V1.02_elvisi (MEGA) -- h t t p s : //mega.co.nz/#F!S0B3hJoI!114VElC-x6_wd2T_S0vb2A

- Choose between english or spanish by default (EN or ES)

I've tested installing system only, and it works fine, stock flash.xml and flash_nopartition are as they come in the official teclast update, so I'm not sure how it affects windows partitions

Enjoy!!
[Teclast X98 Air 3G] Akitoyo:
[MENTION=6301462]kosrica[/MENTION] yeah it should work that way.
[Teclast X98 Air 3G] Perfectdevil:
Did anyone change default DPI 320 ?
[Teclast X98 Air 3G] elvisi:
Yes I have to 264
[Teclast X98 Air 3G] rudnik8:
Hey guys, my C9J8 with dual boot(instaled by teclast) just arrived and i'm testing it. I have some questions

1) Battery drain in windows sleep mode is absurd. I left it for night, and it went from 100% to 36% in 10 hours... And then i switched to android, and battery level was on 68%. Is there a way to fix it? Or just disable connected standby mode?

2) CpuZ in android is reporting only 4980mAh battery capacity, why? Is it normal?

3)I deleted every chineese bloatware app, other than teclast auto update, is there something else to delete?

4)Chineese charger is making very strange noises :/ I'm now using smartphone 1.8A charger, is it enough?

I have no problems with restarting under heavy load
[Teclast X98 Air 3G] Perfectdevil:
- DON'T USE TECLAST CHARGER it damage the device(check 2 last pages)

- about battery this tablet has 2 batteries 5000 mha+3500mha cpuz report only the biggest one

- battery drain fix not available under dualboot

Hope i helped

if any of my replays helped you hit me a thanks !!!!!!!!

if you want to donate me to advance my CODING LESSONs : paypal : ahabriyassine@gmail.com

my devices :

- XPERIA Z2 bootloader unlocked + existenz ROM + ABRICOT KERNEL

- TACLAST X98 AIR 3G DUAL OS
[Teclast X98 Air 3G] kosrica:
Did you tested it with asphalt 8, at least 2 races?
[Teclast X98 Air 3G] Perfectdevil:
I have no 3d issued what so ever And I've been playing asphalt 8 for hours

if any of my replays helped you hit me a thanks !!!!!!!!

if you want to donate me to advance my CODING LESSONs : paypal : ahabriyassine@gmail.com

my devices :

- XPERIA Z2 bootloader unlocked + existenz ROM + ABRICOT KERNEL

- TACLAST X98 AIR 3G DUAL OS
[Teclast X98 Air 3G] rudnik8:
I tested this tablet with hearthstone(almost unplayable on android, i heard its playable on windows) and youtube for 15-20 minutes and nothing happened. Sorry, i dont like racing games on mobile devices, they are trash

Ok, thanks, at least systems boots very quickly, so ill just shutdown windows or hibernate it

What about two different battery levels on windows and android?
[Teclast X98 Air 3G] Perfectdevil:
This tablet has 2 physical battery but the software recognize only 1 !!there's no 2 different battery levels!!! Only 1 battery level combined

if any of my replays helped you hit me a thanks !!!!!!!!

if you want to donate me to advance my CODING LESSONs : paypal : ahabriyassine@gmail.com

my devices :

- XPERIA Z2 bootloader unlocked + existenz ROM + ABRICOT KERNEL

- TACLAST X98 AIR 3G DUAL OS
[Teclast X98 Air 3G] Akitoyo:
And my tablet freezes with Real Racing 3 -.- I'll try Asphalt 8 now.

Edit: freezes as well. But the tablet doesn't get hot or so, it just freezes. So I suspect an voltage issue as well. Sucks though. I'll write my seller.
[Teclast X98 Air 3G] kosrica:
Yes, heavy 3d games put this tablet on freeze on Android although I've managed to play Asphalt 8 on Windows without any problems. The seller will probably give you a link with an apk to lower your gpu frequency as I've shown in a previous post.
[Teclast X98 Air 3G] Akitoyo:
I know, I posted the apk on xda :P anyway, I' think I'll return this tab.
[Teclast X98 Air 3G] kostas-k:
While trying to update my C8J7 through TeclastUpdate to android version 2.05 that came out yesterday, i have an error "assert failed: apply_patch_check ("system/app/Pinyin.IME.apk"...

I have tried to install Google Pinyin or put manually the application to system folder but with no success. Anybody has that error?
[Teclast X98 Air 3G] mirek190:
Why you are make your live difficult by trying to install that update ?

You have fully updated for instance my rom...just install.
[Teclast X98 Air 3G] Akitoyo:
I now tried Asphalt 8 on Windows as well and oh wonder it freezes as well...
[Teclast X98 Air 3G] j.jusko:
Hi everybody. Maybe one weeks ago somebody write about terminal for Android where I can save my command and don't need retype. But now I can't find it. Remember anybody name of it?
[Teclast X98 Air 3G] v0va:
Anyone interested in the stock case? I'm mounting this in a car and I won't be needing the case. Used for one day. I have the orange case.
[Teclast X98 Air 3G] the_jako:
I have installed in my tablet your latest rom (I think) but it doesnt have Power off button. Do you have and fix for it?

Thanks a lot!
[Teclast X98 Air 3G] Petepe10:
Terminal shortcut from the play store
[Teclast X98 Air 3G] kostas-k:
i don't want to install everything from scratch.
[Teclast X98 Air 3G] HDtracer:
Just do what I did, install the standard teclast ROM, do any ota updates, then root, add your own launcher remove Chinese apps etc etc.

Took about 15mins and was all back to normal.

If you install xposed framework and gravity box you will have the standard power off button and GB will give you the extended power menu.

Oh and the ROM will be odexed too. You don't need deodexed unless you want to do your own theming etc.

I also took the lollipop boot animation out of the Chinese lite ROM and got rid of the teclast animation.

Best thing is to get a paid copy of titanium backup, it will pay for itself the first time you do a batch app reinstall haha.
[Teclast X98 Air 3G] nee_vak:
Does this ROM have camera fixed? I'm running dual boot on my air ii HG5N, the only ROM that has camera in the proper orientation is the teclast 4.4.4 rom, but I can't even get ota update installed (not sure if its a build.prop issue or a partition one) just keeps giving error in recovery
[Teclast X98 Air 3G] elvisi:
Yes, its working fine for me.
[Teclast X98 Air 3G] mirek190:
For the time being - just if you want switch off completely keep power button around 10 sec.
[Teclast X98 Air 3G] germancf:
I forget to tell you. Thank you ver y much. Thanks for help me.

If you discover of touhc screen solution In androide say me something
[Teclast X98 Air 3G] rachidcool77:
how to reinstall windows 8.1 without erasing android and the other partition?
[Teclast X98 Air 3G] stan788:
:)

Thanks for help,

I found the problem which was corrupted windows on USB
[Teclast X98 Air 3G] bibi63:
If you have installed dual bios is not advisable to use the power button; hold the power button for about 12 s and tablet stops. Otherwise the battery runs out.

Not yet published a BIOS fix this bug?

---------- Post added at 07:06 AM ---------- Previous post was at 07:01 AM ----------

What problems has teclast charger? Why not be used? I've used it all the time.

Thanks.
[Teclast X98 Air 3G] kosrica:
Just for the record, is anyone trying to build a custom rom based on Android 5 lollipop? That would be really great!
[Teclast X98 Air 3G] BrocasHelm:
Since I didn't have much luck with Tina Wu on the issue of 3d graphics with the exception of the apk, I can now modify the system in a way that I want without having to show anything stock to her or aliexpress.

So my question is. If I go for 5gb android and the rest for my iso of windows, and I choose some of the custom roms, all I need to do for the 3d graphics fix will be an executable simple bash script that will only do a su command and the two echo commands and I will have to run it from terminal when I want to play 3d games in Android? No apk or anything more, right?
[Teclast X98 Air 3G] majkel_94:
LOL... if all Teclast chargers were faulty, all tablet will be damaged and Teclast would have to repair them all due to a warranty :D

Don't panic, charger is working ok, strange noise isn't dangerous :P
[Teclast X98 Air 3G] murrun:
Guys my tablet(Windows only HG6N) reporting the battery capacity as 14.432mWh. It should report 31.164mWh. Does anybody know what's jut happened overnight? I charged my battery but it's draining very fast becuse half of the battery missing. :mad:

edit: I found out that Hendricson solve this issue with flashing dualboot bios. I'll try this later.

Also found this at first page:

1.Fully charge the tablet

2 Run cmd as admin and paste this command

powercfg-setdcvalueindex SCHEME_CURRENT SUB_BATTERY BATACTIONCRIT 0

3 Use the tablet until it shuts down

4 Charge the tablet without pushing power button until it charges fully.(let it overnight)
[Teclast X98 Air 3G] soniyani:
How to battery meter issues

HI EVERYONE, HERE IS HOW I FIXED MY BATTERY METER (14432mw to 30000mw) ISSUES, its very simple:

My tablet started to display 14432 after a while. My tablet is C6J7 (Win 8 only). So I thought i'd flash my bios. Initially it was version 10.5.something from 10, but after i flashed using the techtablet.com bios it went to 9.6.9 from 16.9.14. But that did not help, so flashing the bios didn't seem so helpful. But after googling on the chinese website I found the most simple of fixes:

CHARGE (I did) BATTERY TO FULL(not sure if this is required).

GO INTO BIOS (Connect Keyboard, press DEL on startup)

DISCHARGE BATTERY UNTIL TABLET TURNS OFF BY ITSELF

RECHARGE TABLET OVERNIGHT BEFORE TURNING ON AGAIN (so that its fully charged, using the cable and charger they provided)

DONE

Now my battery is reading back to normal again, though i'm sure this issue will happen (hopefully not) again unless the guys at teclast decide to fix and publish a new bios. think this happened because i tried to charge the tablet using a variety of ways (e.g thin cable, via my macbook, whilst using my tablet, hubs) etc. If you only charge with the cable and charger provided, this probably would not happen (as often).

---------- Post added at 12:24 PM ---------- Previous post was at 12:18 PM ----------

The above method is probably the same as discharging fully, just that it uses the bios (as there is no critical battery settings) to fully discharge.

Whereas on windows you would have to set it so that the battery does not automatically turn off (using critical battery settings or something) when it reaches a certain % (probably like 3% or soemthing). The battery must be FULLY DRAINED therefore even 1 or 2% left in the tank seems to not fix the problem.
[Teclast X98 Air 3G] murrun:
Thank you. I think your method is the same as that i copied from first page. But instead of disabling critical battery shutdown with command line, you discharge battery in BIOS.

I'm charging my tablet with my Nexus 7(2012) charger. I guess using original charger is better for us now. :)
[Teclast X98 Air 3G] soniyani:
yea i think so too, but, do beware, letting the battery drain to 0% is not so good for the battery so remmeber to set your critical battery levels back when you fix the problem. and the original supplied charger is rated at 5v 2.5a, and the cable is a 30V rated. Therefore thats why other chargers/cable might not be so good

:)
[Teclast X98 Air 3G] vbeli:
bricked

Help. When I start to install windows the tablet stuck. Now the tablet can't open.

The only I can see is the attachment screen. Any help?

I am the only I did this?
[Teclast X98 Air 3G] PeppeBove:
How do you say that cable is 30v?

Can you teach us to understand quality cable? Thanks

Inviato dal mio ST15i con Tapatalk
[Teclast X98 Air 3G] lukas339:
Hi Mirek, I was trying to find a tutorial but I wasn´t successful. Could you please navigate me to some tutorial how to install your custom rom into my C8J7 device?

I have downloaded your v3.1 but I don´t know how to install it. Thanks!
[Teclast X98 Air 3G] Franckydiam:
The best way to flash is to follow this video from Hendrikson ;)

https://www.youtube.com/watch?v=rLjayeQJg4Q
[Teclast X98 Air 3G] jcespi2005:
Congrats friend ;)

Good work on this...
[Teclast X98 Air 3G] petruccig:
Hi folks,

the tablet should be delivered today and I will try to include in the second post of this thread the instructions to switching from Windows to Anroid very soon.

Can you confirm that the chinese version of Vroot don't contains malware?

Has anyone deleted on your x98 air 3g the chinese bloatware after done the root?

@ Frontier : What should I change in the instructions of the ANDROID => WINDOWS 8.1 Tutorial to use a Windows 8.1 PRO ISO version instead of the BING version?

Thanks in advance
[Teclast X98 Air 3G] Frontier:
Quite probably you should use a tool like Rufus to create the Windows 8.1 USB installation media but I never did so cannot tell if it works or not. :(
[Teclast X98 Air 3G] soudara:
i test buiding my custom windows 10 iso with drivers , in teclast forum windows 10 working good and latest update fix camera reverted , i testing today and tell you if working better than win8