yashsingh1/xdaforums huggingface dataset:
[Teclast X98 Air 3G] mike794:
bios update

Hi i have a C9J8 x98 with bios 1.03.it would be wise to update on 2.02 or better dont bother?if i update it there is possibility to have problems like brick?thank you
[Teclast X98 Air 3G] Frontier:
Grab the file from here: http://d-h.st/7OC

The IFWI update will not change the ROM version, only the IFWI version.

My X98 Air 3G repository is here: http://d-h.st/users/Frontier/?fld_id=40727#files
[Teclast X98 Air 3G] HDtracer:
Thanks.

I just read that people were saying that they were on V2.0.2, but that was a version that Teclast withdrew for some reason.

I just found this custom ROM on the forum that someone has cleaned up

http://bbs.teclast.com/thread-258308-1-1.html
[Teclast X98 Air 3G] G3n3R4L:
Changing to android is bad android, i lioe windows more, in fact it is better than android .... I dont get the lag i used tonget with the chinese devices on android, i willnsearch for the modified ubuntu 32 bit and let you know

Thanks
[Teclast X98 Air 3G] BoORDeL:
I agree with you.

Have a look here: http://ubuntuforums.org/showthread.php?t=2191557

and here https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1341944

Let me know General ;)

---------- Post added at 10:19 ---------- Previous post was at 10:10 ----------

Anyway this is the last post on launchpad about 32bit UEFI firmware LACK on 32bit linux distro:

"dan pinto (danpinto8) wrote on 2014-11-22:	#15

I can confirm being able to boot into an Ubuntu 14.10 64bit live usb by manually adding a 32bit compiled grub2 on my Asus x205ta which has a 64bit Bay Trail Atom CPU but only supports 32bit EFI.

It was able to install ubuntu until the bootloader part. It installed a 64bit EFI bootloader but that wouldn't work. I then tried adding the same efi I used on the livecd but I just get stuck at grub when I select it via rEFInd. I attempted to follow some instructions online to load linux from grub but was unsuccessful.

It would be great to add 32bit UEFI support. My guess is that at minimum you would need to add a 32bit EFI on the livedisk and in the grub2 installation stage add a check for 32bit only EFI and install 32bit grub with correct grub configuration. Everything else seemed to worked fine in the live usb stage when I tested.

I will try see if I can get the grub config figured out on my end this weekend but I'll need to learn how to set up grub2."
[Teclast X98 Air 3G] HDtracer:
Well I have flashed to 4.4.4 and the new IFWI ok, but i cannot get root.

Vroot says root permissions checking and then the usb connection seems to fail or something.

Kind of stuck now, I have no root access and cant do the playstore fix.

Has anyone had success rooting the 4.4.4 update with anything other than vroot?
[Teclast X98 Air 3G] martyan:
this vendor aliexpress.com/item/9-7-Teclast-X98-Air-3G-Windows-Intel-Bay-Trail-T-Quad-Core-Tablet-PC-2/32222560720.html confirmed that is 60 hertz. The problem is the price.

i.imgur.com/wJJZlkB.png
[Teclast X98 Air 3G] olixman:
I can confirm, seller replied that the screen is indeed 60Hz, and 3G data is working.

"Hi, what a coincidence! I just check the refresh rate for a customer from Japan (before it I didn't know what's refresh rate), and confirm that it's 60Hz.

For the second question, yes X98-AIR-3G-WIN can support built-in 3G."

Will order one soon. Price is still way lower than what you can get in Romania for the (almost) same config.

Edit. Forgot the picture. http://i.imgur.com/OG25eZ8.jpg
[Teclast X98 Air 3G] BoORDeL:
I've bought my X98 AIR 3G from that seller.

Fast and polite. (the price has raisen up about 20€. I think it depends on win licence).

Anyway let us know when it arrives
[Teclast X98 Air 3G] SUMMERBREEZE:
I HAVE LOST MYSELF IN THAT PAGE! is it possible to get the download link of that room? :good: worth to try :laugh:
[Teclast X98 Air 3G] G3n3R4L:
u think we can wait and take a copy of all the drivers when they order new one ?
[Teclast X98 Air 3G] BoORDeL:
We don't need their drivers; a copy of C6J7 SO is out and you can freely download it from teclast SITE.

We need to compare C6J7 BIOS with our C6J6.

I think we could solve our 48Hz video refresh issue with that bios.
[Teclast X98 Air 3G] SUMMERBREEZE:
So we are waiting someone who has C6J7 to dump the BIOS and put it here? :confused:
[Teclast X98 Air 3G] G3n3R4L:
i still dont believe its a bios issue, so far now everything solved without changing the bios, even the camera last guesses was the same idea, but it has been flipped with a driver change so maybe the vga also, dont u think ?
[Teclast X98 Air 3G] BoORDeL:
Nope,

still thinking it is a bios feature.

Anyway let's hope i'm wrong ... i'm still waiting for a good samaritan who will give us his C6J7 BIOS DUMP.
[Teclast X98 Air 3G] G3n3R4L:
ok, if you are taking the risk i couldnt agree more .... we will see, hoping that one day teclast will look on the customers who already paid and not considering only the new customers, maybe even the dual boot would be out ..... would be more than great
[Teclast X98 Air 3G] soudara:
hello

where to find the new bios and fix for camera inverted ?

the new bios can working on c6j6 ?

i just want to fix 48hz problem
[Teclast X98 Air 3G] SUMMERBREEZE:
You have not been in here for quite long time, we missed you! Camera was fixed somehow with newer drivers and some reg edits but it gave some touch screen issues to some of us (like [MENTION=1167021]Hendrickson[/MENTION] etc.) but 48Hz issue still is there, no fix yet! :rolleyes:
[Teclast X98 Air 3G] G3n3R4L:
still the 48hz not fixed yet, but the camera fix u can find it few pages back

some news man, i just spammed this seller to give me a link for the firmware or drivers, and he gave me that link ... im checking it now

http://jingyan.baidu.com/article/6b1823094fa0dbba58e15985.html
[Teclast X98 Air 3G] soudara:
i just check the link for files, it's old bios , not wast your time with that

hello summerbreeze , yes i have not time the last day i just back for check news, because i can see a windows version of tablet come out , but now i have little time if i find a good file and fix 48hz , im posting here

by
[Teclast X98 Air 3G] G3n3R4L:
yeah i just checked also .... such a furbo seller, it was a try anyway
[Teclast X98 Air 3G] Kryogen:
I downloaded it from BaiDu, though it has flipped cameras.

This is the rom I use: http://pan.baidu.com/s/1kTKMVcV

This is what i found and am going to test for the cameras: http://pan.baidu.com/s/1eQzs2um

I downloaded CPU-Z, SOC temperatures are:

dollar_cove_battery 28°C

SoC_DTS0 40°C

SoC_DTS_1 42°C

PMICDIE 17.1°C

skin1 34.6°C

I used the ROOT_ME script in the toolbox..
[Teclast X98 Air 3G] mirek190:
You can install it without any problem on 4.4 on every partition size ( just system partition must be bigger than 1024 MB / 1 GB ) that's it - just use system only xml.

Xposed don't work on Android 5.0 firt of all.

Xposed install itself files in system memory but your system partition will be formated and installed android 5.0 that means Xposed will be removed before instalation .

Rest apps are installed in data . That partition will not be formated .

You keep all instqllded apps.

But if you will have any problems just format data partition .
[Teclast X98 Air 3G] benbraun322:
Thanks so much for all of your hard work for this community Mirek!!

Your awesome.

From my BlackBerry Z30 or Teclast X98 Air 3G
[Teclast X98 Air 3G] arlly98:
love you

thanks
[Teclast X98 Air 3G] alexvvv:
Thanks
[Teclast X98 Air 3G] lokkiyo:
Hi Mirek which tools do you use to rebuild/edit the .img files?

I would like to cook a HG9N ROM

Thanks! :D
[Teclast X98 Air 3G] benbraun322:
[MENTION=2198172]mirek190[/MENTION] I loaded it up with absolutely no issues and I've been testing for the last 3 hours, and for a beta IT'S AWESOME.

One issue I have so far is that for some reason when I lock the screen it turns off then back on and then back off really quickly, kind of like a flicker.

And it could be because I don't have BIOS v2.02 but when I try the Switch to Windows app it just reboots back into android.

And is there a way to make the full quick setting bar come down with one swipe instead of two.

Right now I need to swipe down from top to get the notifications and then again to get the quick settings (brightness, WiFi, Airplane mode...)

From my BlackBerry Z30 or Teclast X98 Air 3G (C8J7).
[Teclast X98 Air 3G] azzy12:
hi guys so my SOIC clip finally arrived so I can unbrick the device.

Can anyone tell me how to clip the BIOS ? There's metal shield surrounding the bios so the clip wont go through.

thanks!
[Teclast X98 Air 3G] mirek190:
If I find proper mods then I make it.

---------- Post added at 08:09 PM ---------- Previous post was at 08:07 PM ----------

I'm using Archikitchen .
[Teclast X98 Air 3G] benbraun322:
Great thanks again.

I like this Beta more than any other ROM I've tested before so far :)

From my BlackBerry Z30 or Teclast X98 Air 3G (C8J7)
[Teclast X98 Air 3G] mike794:
Thanks thats a great and really smooth rom.an issue that i have is i cant use titanium backup.it says that its no rooted .how can i fix this?thanks in advance
[Teclast X98 Air 3G] mirek190:
My rom is 100 % rooted - you have to flash MY system.img and boot.img to obtain full root.

Not only system.img
[Teclast X98 Air 3G] sikke1:
Currently I can repeat this really annoying shutdown in Windows over and over again. It only happens when charging and eaven when screen is turned off and picture is going to TV trough HDMI. Makes it impossible to watch long movies or use the tablet to play internet streams for hours. I have a feeling the windows battery icon charging animation stops 10sec before shutdown is triggered. Charger plug is there displaying AC + charging. Just the animation stops.

Its no diffrence if 700mAh Samsung charger is used. Causes little heat. Cannot keep battery up, will cause little decay because tablet uses over 1A, but wont heat the unit so much.

Or

2A proper charger is used, which will cause overheating while playing heavy 3D games eaven in android.

I have modded my c8j7 cooling, and plan to modify it eaven more heavy duty, will heat whole backplate, got some 0.5mm thermal pads coming.

This wrong shutdown will not occur in Android eaven when playing 4hours heavy 3D games like world of tanks. With 700mAh good flexible cable charger from Samsung you will have very little battery decay and heating issues are minimal. Can play, suft, chat, 5hours easy.

Currently my conclusion is hardware / windows driver bug from charging IC.

-edit-

Teclast X98 3G model C8J7 was manufactured Android only? I bought second hand broken briked tab which I mended so no clue.. Soooo it might not be Windows compatible on the charging IC side [emoji1]
[Teclast X98 Air 3G] nolive72:
thanks to TamatiG putting me in the right direction by using an older version of link2SD,I can now move app to my external SD card:good:

I have been doing trials with a 2Gb card but am going to buy shortly a bigger one(64Gb)

please don't flame if this sounds like a noob question because I have been using only Android device so far and this is related to Dual OS usage

I want to achieve this

1)While in android,I want to move lareg size apps (done with Link2SD) and also large size games (obb files also with Link2SD or Foldermount) to the external SD card

2) while in windows,I want to use the external storage for media files (photos,music,videos) or install games as well

I am planning to create 2 primary partitions(as I did with my 2Gb card and was working well) 1st one being FAT32 format (available for Windows) and 32Gb and then the 2nd one being EXT4 also 32Gb(available for Android)

does that make sense to you? or you see it a different way:confused:

PS I still have the battery drain issue in windows but now reading more and more this immense thread,I can see I am not the only one:(hopefully a software fix will be shared soon:victory:
[Teclast X98 Air 3G] mike794:
I was using an older version of titanium backup after update it is working fine.thanks for the great rom
[Teclast X98 Air 3G] benbraun322:
Well yes the C8J7 is an android only 32 GB version, BUT I've got dual boot installed on mine and it never overheats or shuts down.

Lollipop works well and is very nice and Windows as well.

Only issue I have is my front facing camera won't work at all.

Not in Windows and not in Android.

I'm not sure if it worked before I changed anything (BIOS, android ROM...)

From my BlackBerry Z30 or Teclast X98 Air 3G (C8J7)
[Teclast X98 Air 3G] ImJamIN:
You can create the two partitions as large as you need. I suggest to format as ntfs and not fat32 so you can use it in windows without limitation of large files and you can move programs to sd.

And you can also use it in android because teclast has implement it in the kernel
[Teclast X98 Air 3G] nee_vak:
Which toolbox are you referring to?
[Teclast X98 Air 3G] Hayleyball:
Hello. As i said before, when charging, tablet wasn't overheating at all. So i thought that shutdown process was pointless. If it isn't i don't really care about anymore. Because tablet is not useful if i can't use it when charging.

Anyways i have solved this problem by disabling "hibernation'' with:

cmd ( run as administrator ) --> " powercfg.exe -h off "

I took the risk of getting CPU damaged. Still worthy i guess..

I hope this solves your problem too. Have a nice day.
[Teclast X98 Air 3G] mirek190:
Could someone download rar app and make benchmark on my rom android 5.0 ? I need result .
[Teclast X98 Air 3G] Perfectdevil:
Guys is there a custom recovery like TWRP or CWM for this tablet?
[Teclast X98 Air 3G] alexvvv:
mirek190 You could write a step-by-step on installing your firmware, it will help many.
[Teclast X98 Air 3G] nolive72:
thanks

I was under the impression the 1st primary partition had to be FAT or ext but then I will give ntfs format a try on my 2Gb card to see if it works

I am especially concerned with mounting folders in Link2SD since I had so many headaches with this in the last week or so

will comment here,that might help some other people
[Teclast X98 Air 3G] Mattycee:
Is there anyway to get the Boot to windows app to work? It reboots the tablet but just goes back into the Android install. Not a major issue but would like to be able to reboot into Windows from the Android partition. The app for the windows side does the same thing booting into the same partition as well??

The rom is brilliant apart from that.

Just out of interest is there any chance of deleting the cellular part of the rom for people like me who are using the X98 Air ii?
[Teclast X98 Air 3G] dagrim1:
Wondering about the last part myself as well... I know it's possible to freeze some of the parts but the 'cellular-icon' stays in my status bar.

I also sometimes get the issue that my cpu is locked at min speed btw, 498mhz. Running Antutu gives a score of around 14k in that case. If I check with cpu-spy I see this as well. If I use some cpu-control tool to change min and max speeds it 'triggers' the cpu and then it seems to work ok. But it bugs me quite a bit.

Anyone else recognizing this?
[Teclast X98 Air 3G] mirek190:
That's why I'm asking about a score from rar - benchmark. - should be around 1600 KB s but I had only 700 KB s on my beta 1 .0 - and wasn't fast for me enough. ..

I think yesterday solved that problem .

I also added some optimizations ( modified odm , min free , ext4 , modded scheduler and I/O, etc ) and now is far more faster and snappier even faster than 4.4 . [emoji2]

Now is very responsive and fast in any task.
[Teclast X98 Air 3G] dagrim1:
Unfortunately I'm at work now so I can not test it, if still needed I will check it this evening! (Will reflash the rom then).

And if you want any other tester for your rom, always willing to help ;)
[Teclast X98 Air 3G] Kryogen:
The one linked in the first post as far as i remember.

This is the script i used (extracted from tolbox) : http://www.mediafire.com/download/xb39bkcfc7lq13y/RootScript.rar
[Teclast X98 Air 3G] Chur2Much:
You have to flash bios for this..... Its on the telecast forums I did it and it worked but it was for the C5J6...... Other models I don't know
[Teclast X98 Air 3G] mirek190:
With version of air 3 g you have ?

And can you provide that bios you flashed ?

When I finish that rom I try to flash the bios not ealier.
[Teclast X98 Air 3G] broomeb:
Cant root and cant find sd host driver download

Have read and searched forum discussion but yet to find a satisfactory answer to two issues I have with the X98 3G (c5j6) 64GB dual boot running 4.4.4 stock.

Issue 1 - Can't root

Have tried Kingo, Vroot, SRS and the root from the Frontier toolkit. All say the tablet has been rooted but when I check with Root Checker it says the tablet is not rooted.

Anybody had a similar problem and come up with a solution?

Issue 2 - Discharging whilst in sleep mode

I have similar problem to many others - tablet discharges at a rate of around 3% per hour when in sleep mode.

I can't root in Android so haven't been able to try the Battery Calibration procedure as suggested.

However I did amend the critical event in Windows and allowed it to drain battery to 0% before turning itself off. Fully charged it whilst leaving it off but hasn't made any difference - still drains at 3% per hour.

Want to try to replace the SD Host drivers however I can't find a reliable download of a driver - all the links I have found lead to downloading driver manager software that then tells me the drivers are all up to date. Anybody who tried this procedure got a link to the actual driver?

Thanks in advance
[Teclast X98 Air 3G] Mattycee:
Is this for the reboot option in Windows/Android? I heard that if you flash the wrong bios file its hard brick that can only be recovered using hardware to reprogram the bios. I am scared to flash the Bios in case I brick the tablet.
[Teclast X98 Air 3G] Chur2Much:
Here is the post
[Teclast X98 Air 3G] david.halim:
Cant boot

Can anybody help me? i crashed my dual boot tablet by deleting some partition and it wont boot now , i dont have USB hub , wireless mouse and keyboard..

will below method work?

Whatever the case, make sure your USB Drive is formatted as FAT32! Very important!

I used this wimboot image that automatically uses WinPE to get through the whole install process automatically without needing a single mouse click, which also has all the drivers and everything installed and working properly:

Waiting for repost on mega...

Link: http://pan.baidu.com/s/1hqIfAle

password: zhec

Extract the downloaded files and then copy all the contents into the root of the USB Drive. NO NEED FOR RUFUS!

Plug in the USB drive via OTG cable or HUB, and choose the small Windows icon until it turns blue, then hit the grey button below and Windows installation should start.

Thanks
[Teclast X98 Air 3G] benbraun322:
Boot to Windows will only work if you have the latest BIOS v2.02 installed.

But this BIOS is only meant for the C5J6 Model and is known to brick many tablets.

I wouldn't risk it, just switch OS's the slightly longer way.

From my BlackBerry Z30 or Teclast X98 Air 3G (C8J7)
[Teclast X98 Air 3G] Mattycee:
I think you're right. I found a version for my tablet but thought better of it. I'll wait until its out of beta.
[Teclast X98 Air 3G] benbraun322:
All Teclast X98 Air 3G models have a battery drain.

BUT, you my friend are lucky because you have a C5J6.

Teclast has released a new BIOS along with their Lollipop 5.0 Beta.

The BIOS version is v2.02 and is ONLY compatible with the C5J6 variant.

This BIOS, as far as testing goes is known to have ZERO battery drain when in connected standby mode (sleep mode).

I've got a C8J7 and don't want to attempt to flash the v2.02 BIOS because I can brick my tablet but you should go for it.

It will fix your battery drain issue and then after you install the new BIOS you should install Mirek190's new 5.0 Beta (which is awesome) and then proceed to install Windows 8.1 (you can even install Windows 8.1 Pro if you want).

Your tablet should then be fully rooted and you will have no battery drain (and Windows 8.1 Pro).

Battery Calibration is different from battery drain, some tablets for some reason think that the battery is 1 cell and not 2 and when the battery will go down to 7% in Windows quite fast and then stay in 7% for a long time because it misread the amount of cells there are in the battery.

From my BlackBerry Z30 or Teclast X98 Air 3G (C8J7)

---------- Post added at 12:21 PM ---------- Previous post was at 12:18 PM ----------

Smart man. Don't risk it.

I would only attempt it if I already had the BIOS reprogramming clips or tools.

It's known to succeed with the reprogrammer and even if it fails and bricks I can just reflash with the programmer.

From my BlackBerry Z30 or Teclast X98 Air 3G (C8J7)
[Teclast X98 Air 3G] totor54:
to flash the BIOS v2.02 for C5J6 model. or download? thank you in advance.

for mirek190

I tested several hours the Rom . youtube. GooglePlay. feelink lucky not working .. The boot windows does not pass me back windows has android

very good rom

thank you
[Teclast X98 Air 3G] benbraun322:
This will not work because I'm assuming you deleted android as well, am I correct?

Can you access Android?

What happens if you shut down the tablet and then hold the Power, Volume + and Volume - buttons all at the same time for about 25 seconds?

It should bring you to a screen that says DnX Mode, Waiting for fastboot command.

Something like that.

If you can get to this screen then you can reflash android and then after you install Android you can install any version of Windows. I recommend Windows 8.1 Pro (but it is not licensed).

I had an extra license lying around from an old laptop.

I strongly recommend you watch Hendrickson's (TechTablets.com) video on YouTube it was very helpful to me and I'm sure has helped many other users.

Also you can email me at ZackBBraunstein@gmail.com if you need help with anything.

(ordered a laptop and I chose no OS and bought 8.1 Pro because I got a great deal for being a student and the laptop arrived with 8.1 Pro so I still had an extra license).

From my BlackBerry Z30 or Teclast X98 Air 3G (C8J7)
[Teclast X98 Air 3G] dagrim1:
Do you have a screenshot from the bios? I think I flashed the one supplied with the android 5.0 version by teclast, but not sure anymore (bricked my tablet in the process and have been fixing and reflashing a lot. But battery drain in windows has decreased a lot, which was a fix in this latest bios).

I see "Project Version: tPAD 2.01" and a build date and time of 04/21/2015 15:46:18
[Teclast X98 Air 3G] benbraun322:
Sorry could not understand.

What do you need a hand with?

Flashing the v2.02 BIOS on your C5J6?

I cannot help you with that because I have a C8J7.

But try and find someone who has it installed on their C5J6 and ask them how they installed it.

Do a search in this forum and maybe look back about 30-40 pages ago I remember a lot of people were attempting to flash the new BIOS and many bricked their tablets but I don't think those were C5J6 users.

From my BlackBerry Z30 or Teclast X98 Air 3G (C8J7)

---------- Post added at 12:37 PM ---------- Previous post was at 12:35 PM ----------

I've got a C8J7 so I haven't flashed the BIOS but I'm almost positive the version number on the BIOS is v2.02.

And YES it was released with Teclast's 5.0 Lollipop Beta.

From my BlackBerry Z30 or Teclast X98 Air 3G (C8J7)
[Teclast X98 Air 3G] dagrim1:
Have been able to figure it out, air 3g version is indeed 2.02 while the air II version is 2.01 (so I at least now now for sure I flashed the air II bios ;) ).

But yeah, the boot to windows app in android actually works! Had never tried it actually, hehe.
[Teclast X98 Air 3G] benbraun322:
Ahh you are a lucky man, I've got a C8J7 and I don't want to install v2.02 and risk bricking my tablet.

I'm not sure where, but I also saw an application for Windows 8.1 called switch to android which just does the opposite and... Is also only working on the newest BIOS.

I might have seen it on pan baidou. Or somewhere else......Or I can just be crazy, that's always a possibility.

From my BlackBerry Z30 or Teclast X98 Air 3G (C8J7)