yashsingh1/xdaforums huggingface dataset:
[Teclast X98 Air 3G] tecknight:
I suppose we are lucky to have so many good people supporting the X98 Air, but NO, Android ROMS are never transferable to any system that does not have the EXACT SAME Processor, processor speed, Graphics chip, memory, screen resolution, addressing, wifi chip, GPS chip, Bluetooth chip, camera chipset, etc.

You are going to be limited to running Chuwi Hi8 ROMs.

---------- Post added at 06:39 AM ---------- Previous post was at 06:12 AM ----------

Absolutely, you may use it as you wish.

---------- Post added at 06:49 AM ---------- Previous post was at 06:39 AM ----------

I remember that ROM. He called it Slimclast and he had every one of your tweak scripts on it with your name still in them.

My debloated with root was a mod of the first Teclast lollipop final image. I rooted it and pulled most of the chinese apps. and I removed the bogus droidboot and put the 4.4 droidboot back in.
[Teclast X98 Air 3G] Crazy_Oni:
If its right what mirek says, the Android 5 rom couldn´t help me to solve this issue. I have to use the Android 4.4 Version. I´ll give it a try.
[Teclast X98 Air 3G] air ll 64gb hg9m owner:
techknight, you told matt-24 to use ntfs on his sdcard....earlier in the thread someone said android reads fat32 so to use the sd card data on both os it must be fat32. is ntfs reading a new feature of android 5?

can you clear up what format the sd card should use ?

thanks
[Teclast X98 Air 3G] Mikha777:
Just Install the BIOS 2.05 and Windows will ask for the Comneon Drivers and you can find them here: http://kaopu.so/pan/comneon :silly:

2.05 ---> https://mega.nz/#!wgBjEbrI!Bn1HY_iSynNjpzE9Glsp3-5fcip7XfAge8HXhHph9gY

Regards. :D

---------- Post added at 10:55 AM ---------- Previous post was at 10:42 AM ----------

2 things can have happened here:

1- You did not really remove the ESP partition ;)

2 - You removed the ESR partition and Windows Installation recreated the partition.

The ESR partition is used in the boot sequence of OS that Support UEFI (Win 8 & Win10) and also can be used when you upgrade your BIOS since it's a part of the UEFI standard and manufacturer and programmer expect that it is installed as the first partition. Also it's used in by some Boot-loaders so if you remove it your system can boot sometime but some partition format will not be seen by the system like Mac.

Some users delete the ESR to recover few MB and it seem to work fine but it will usually "crash" sooner or later when the system will need to use the ESR for various reason (ESR is expected to be there by soft/hard dev). Running without ESR is a little bit like if you use your computer with bad registry keys, it could work till a software or hardware try to access them... :cowboy:
[Teclast X98 Air 3G] jagr:
you can set apn settings by going settings -> network -> mobile/cellular. on the right side click on your mobile provider and advanced options.
[Teclast X98 Air 3G] tecknight:
The Teclast Android releases have all been able to read NTFS and exFAT.

I will list the filesystems that can be read by both Teclast Android and Windows from most to least desirable

NTFS filesystem

Supports any size SD/partition. Max file size is not a problem.. Redundant, error correcting encoding ensures changes are immediately written to disk, so you can eject and remove at almost any time w/o risk of errors. Built-in Support for hard links and junctions, which are permanent redirections from one NTFS path to another.

exFAT filesystem

Supports any size SD/partition. Max file size is not a problem. Basic encoding that does not force changes to be written. Prone to errors when rebooted w/o committing changes. Does not support hard links or junctions.

FAT32 filesystem

Max partition size 32GB. Max file size 4GB. Basic encoding does not force changes to be written. Prone to errors when rebooted w/o committing changes. Does not support hard links or junctions.
[Teclast X98 Air 3G] mirek190:
As far as I remember exFAT not wotk on teclast yet .

FAT32 - I have 128 GB partition and works OK but is limit to 32 GB .

I not recommend NTFS partition - that partitions propably broke my sundisk sd card 128 GB ( hopefully warrant works and I got new sd card for free :) ) .
[Teclast X98 Air 3G] tecknight:
Looks to me like BIOS 2.05 came from an Air II, not an Air 3G.

That would explain the lack of GPS and 3G networking support

---------- Post added at 10:23 AM ---------- Previous post was at 10:17 AM ----------

I will try one more time, but I am pretty sure I tested it (exFAT) on the Lollipop final from Teclast and it worked.

NTFS has been working great on my Sandisk 64GB in Android and Windows.

How did NTFS "break" your MicroSD ?
[Teclast X98 Air 3G] B0IIE:
hey everyone,

first of all a big thanks to everyone who contributed to this thead! this thread was one of the reasons I decided to by a teclast x98 Air 3G 64 GB with Win10 and Android 4.4.

I´ve tried to gather as much information as posible to start modding the tablet tight away. All I whant at first is a clen installation of bios android and windows.

This thread by Mikha777 will help with bios. And if I read correctly it is best to update only to 2.02 and not to 2.05 as there are problems with 3G.

This thread by teckknight will help with android and according to this thread I´ll pick a android version which matches my version.

I´m only having a bit of a ptoblem to find a corresponding post for updating Windows. I only found this thread but am not 100% sure if that are the correct files and what to do with them. Also I think I saw a thread where tecknight wrote he would write a tutorial on updating windows 10 over the weekend but couldn´t find it anymore.

Could someone point me to a tutorial of somekind or a thread on how to apdate Win 10

Thank!!
[Teclast X98 Air 3G] cattolicboy:
An essential information: you should also tell us the model number of your Teclast ....
[Teclast X98 Air 3G] B0IIE:
I dont have it in my hands yet. I hope it´ll arrive tomorrow (I whant to be prepared when it arrives.)

But is this info required for the windows update?
[Teclast X98 Air 3G] shorns:
Hi everyone, long time reader, first time poster, thanks for all the great information and help thus far.

Can't find much information about this one; Has anyone had any hardware issues with bluetooth?

x98 Air 3g C5J6

Stock everything except recently upgraded to win 10. A few days ago bluetooth stopped working, no particularly recent updates have been done. In my device manager it has an entry for "realtek bluetooth UART bus driver" and says it cannot start due to a STATUS_DEVICE_POWER_FAILURE.

Booting into android doesn't help, it has a switch to turn on bluetooth but it doesn't work, which makes me think this is a hardware issue, any ideas where to start with this one? All other networking, 3G etc is working fine.

Cheers.
[Teclast X98 Air 3G] Mikha777:
The latest BIOS is v2.05 if you have an X98 from the

first models with Front Cam GC2235

they don't have the same Front Camera as the latest. With any BIOS higher than 1.03 you lose the ability to use the Front Camera in Windows for Android I'm not to sure since I don't use Android but I'm pretty sure somebody else will with more knowledge than me on Android should answer.

Here's a chart to help to know what mode l you have http://techtablets.com/forums/topic/x98-air-3g-model-numbers/ :cyclops:

Also with BIOS 2.05 don't support GPS BCM4752 at this point, I will resume my work on DSDT table next week-end to try to fix the Front Camera problem under Windows (If I'm successful it could fix also some problem for Android Users). After if some want to help in testing I will try to fix the GPS problem but I will need some Beta tester since My X98 don't have GPS ;)

With BIOS 2.05 you have BIG improvements on the battery leaks when the X98 is in sleep mode but sadly Teclast engineers don't have integrated in the DSDT the GPS BCM4752 + Front Cam GC2235.

You can use any BIOS for X98 Air II or G, there is no problem at all. :cowboy:

For Win10 you can update with a USB Drive direct from Microsoft http://tinyurl.com/orqlq2b Just be sure to choose the

32Bit Version of Win 10

;)

---------- Post added at 12:10 AM ---------- Previous post was at 12:04 AM ----------

Uninstall the driver via the devices manager and reboot and reinstall the driver lot of time it can fix the "STATUS_DEVICE_POWER_FAILURE" error if it's not related to an hardware problem. :fingers-crossed:
[Teclast X98 Air 3G] shorns:
Uninstall the driver via the devices manager and reboot and reinstall the driver lot of time it can fix the "STATUS_DEVICE_POWER_FAILURE" error if it's not related to an hardware problem. :fingers-crossed:[/QUOTE]

Yeah done that, no dice, plus it would work under android if that were the issue wouldn't it?
[Teclast X98 Air 3G] vpx:
+1 do not use NTFS partition on SD card under android. It allows you to copy files >2GB under Windows or in SD card writer, but there is problem in android, because cannot seek to position on file index >2GB . Tried on clean install.

Is here anybody, who has NTFS SD card and there for example movies with size>2 GB ? Are you able to play them in android correctly (try seek to the end)? If yes, maybe I have broken SD card slot, but only under android.
[Teclast X98 Air 3G] jagr:
i'm ok to beta test, would like 3G to be detected properly as a mobile broadband network adapter as well instead of a comneon modem
[Teclast X98 Air 3G] tecknight:
Yes, based on the devices supported and not supported, BIOS 2.05 has to be an Air II BIOS.

That is why it has no GPS or 3G networking support. BIOS 2.02 is an Air 3G BIOS, so it has GPS and 3G networking support embedded.
[Teclast X98 Air 3G] mirek190:
Ntfs partitions are writing many things concerning its own file system specification and doing it very often comparing to very simple FAT32 .

I think my sdcard 128 gb just reach limit of writings (the cart was full in half ) and I couldn't write nothing on it anymore - only reading .
[Teclast X98 Air 3G] Matt-24:
You were right! Formatted in ntfs and now it's all working :)

Inviato dal mio X98 Air 3G utilizzando Tapatalk
[Teclast X98 Air 3G] siezed:
Hey i have this issue as well i mentioned awhile back, any luck with a fix? Couple things that might help, its caused by the tablet disconnecting and connecting, its the same software action as unplugging the tablet, waiting a few minutes then plugging it in, over and over,but i dont think its actually disconnecting or a charger or cable problem, as its only android. i posted a battery graph showing what it does but the search seems to be down for me cant link it.

I have ran battery calibration apps, i think they just deleted the battery stats file in android but maybe they messed something up? have you ran these? im running mireks 5.0 5.1 rom, are you as well? i believe it happens with all roms now though, but hasnt always happened. I saw technight asked for a log file, i cant get the log to work either not sure why i tried all the log apps on the play store.

Anyways, its main concern for me is it's destroying the battery, because i know lipo cycles between 80%-full when on the charger to avoid degradation, and a technique to "top off" a lipo is to unplug when its full then plug back in and charge for a bit, forcing a full charge, and this i think is doing that over and over. perhaps a "feature" one of the calibration apps modifying the battery charging file to force a full charge?
[Teclast X98 Air 3G] chrissss91:
Hi Siezed,

I'm not sure, but IIRC it was the same under Windows 10.

I've drained the battery completely, charged it for a night, then I powered it on and done a battery calibration under Android.

The matter was still there, I rebooted to windows (I usually only use Android), lauched HWinfo to see the battery capacity (I don't remember the result), redone a full drain/full charge and it seems it desapearded oO.

I've also noticed screen burn :crying: when I play too long to Clash of Clans. Fortunately it desapears when I turn off screen and change the active app for a minute.

I'm a bit disapointed since I feal that this device will not last long (at least as long as my HP TP which has at least 1 year of screen on on CoC :cool:).

Sorry for my English.
[Teclast X98 Air 3G] kosidroid:
maybe i've got a problem related to whats posted above...

the last few days i noticed an incredible battery drain. the battery went from about 50% to 5% in about half an hour max. Then it stopped and was at 5% for quite some time... I could watch the percentage drop like it was nothing, didnt matter if some game was running or just browsing through app drawer... Screen-on-Time was only about 2hrs.... also charging only went up to 99% then stopped, i THINK i also had screen turning on every now and then but not sure as i didnt really think about it then....

i charged battery to max (which was 99% even with restarting and plugging back in a few times), then used some recalibration app and now charged back up through the night. this morning it showed 100% again. I really hope the huge battery drain is gone now, but i honestly dont think so. in battery status i also could see that android system was >30%, was listed on top of display.

i flashed mireks v5 together with current dual boot bios / Got a X98 Air 3g C8J6.

(sorry to not have exact information and also no screenshot right now, dont have the tablet with me and at work - will post again later)

*screenshot added, current screen on time is about 1hr10min*
[Teclast X98 Air 3G] B0IIE:
But what about the drivers? They aren't included when I download directly from Microsoft. Right?

Or is it just an update I'm doing and not a whole new installation? So I wouldn't need rufus and so on??

I'm planning to use the tablet mainly in Windows mode. So problems concerning the android side dint bother me much.

The only thing that might hurt is that the 3g functionality gets lost when updating to bios 2.05.

GPS would be nice to have but isn't a must have. That being said, I would be happy to be a beta tester for your gps fix. Maybe I can give a little back to the community.
[Teclast X98 Air 3G] ikecomp:
First of all, great rom mirek190. I'm currently on version 4.1 on my Air II and have no complaints. I do have one question though related to the HDMI out. When in windows 8.1, I plug in the cable and it automatically detects the connection and outputs a fullscreen 1080p image to my tv. This is what I would expect. When I plug in the cable for android (mirek190 v4.1) it also detects the presence of the plug but it does not adjust the resolution properly to my tv. What I see is basically a square box in the middle of my screen instead of a full 1080p image.

Is there a tweak or file i need to flash to correct this? Should I use the included resolution changer app and if so what settings should I use?

Thanks in advance
[Teclast X98 Air 3G] Mikha777:
Most of the drivers if not all are included ,if for some reason you need one just go here: http://techtablets.com/2015/07/teclast-x98-air-3g-windows-10-update-and-windows-10-drivers/ ;)

N.B.

: IIRC you need Rufus only if you download the ISO file instead of building the image directly to the USB drive.
[Teclast X98 Air 3G] 09294:
Hi everybody

I saw a new Teclast office in Spain for Europe (ww.teclast.es) . Teclast placed it at http://www.teclast.com/en/. They want to sell in europe international customized devices upon European style, differents to european versions sold in China (from Gearbest and similar places). They started with a X98 PRO presale. Interesting, interesting. Bye
[Teclast X98 Air 3G] Nathaphong:
Hi Mirek :D

thanks for your roms, I do really like them but on Lollipop v5 I'm experiencing two main problems: games freeze and the battery stop charging at 80% (I've tried the calibration but nothing changed)

On your kitkat v4 games were running well without freezes and no problems with battery.

I'm thinking about flashing back to kitkat but I heard you're working on a new version of it. Should I wait or it will take so long before it's ready?

Teclast air II hg9m (lollipop v5)
[Teclast X98 Air 3G] Petepe10:
Bluetooth keyboard

Maybe this was posted before, but there seems to be an original teclast keyboard for the x98. $22 at gearbest

http://www.gearbest.com/tablet-pcs/pp_239759.html
[Teclast X98 Air 3G] tecknight:
I have a 64GB NTFS partition and have used it extensively, but I have never tried a video > 2 GB yet. I will try one today.
[Teclast X98 Air 3G] kosidroid:
Okay i thinki have some kind of huge battery issue... Yesterday battery went down to 2% and i plugged it into the charger when i went to sleep. When i just got up i unplugged it (after about 8hrs) and it says 91% charged only...

Anyone can help me on this? I'm not sure when this started, maybe related to flashing v5 and bios lately... Gonna flash mireks4.4 later to see if it works better.

Or is this some known behaviour / known bug and will be fixed?

Thx a lot!
[Teclast X98 Air 3G] Cozla:
I also have battery issue. It's drop from full to 3% very quick and then it take normal period of time to discharge and turned of.

Sometimes when i charge battery it drops to about 80% just after i unplug charger. I have deleted battery stats but it didn't help.

Wysłane z mojego Redmi Note 2 przy użyciu Tapatalka
[Teclast X98 Air 3G] articsilverfox:
Yeah I got similar battery performance, in fact I think everyone with this tablet has a ****ty battery performance.

Its just what you get with a low priced tablet. Everyones chasing a rabbit down a rabbit hole trying to find a solution with OS and bios updates but at the end of the day I don't think it can be fixed to a level where its going to even remotely compare to an iPAD etc its just how it is with a budget tablet.

Get your self a power bank and move on is what I say... http://www.banggood.com/buy/power-bank.html
[Teclast X98 Air 3G] mirek190:
The battery is OK - only indicator is extremely not accurate .

Mine sometimes drop very fast to 2% and works few hours ... and sometimes indicator works OK ...
[Teclast X98 Air 3G] kosidroid:
oh well... not too good, but okay at least i am not alone :)

strange this behaviour started just a few days ago, before that i always had quiet good battery life (at least it felt like it was good :p)

so nothing i can do about this i guess :-/
[Teclast X98 Air 3G] Cozla:
Is there aby chance to fix it? Before everything was ok with indicator and i don't even know what is the cause. The issue is present on KitKat and Lolipop.
[Teclast X98 Air 3G] majkel_94:
Maybe 2.05 BIOS make some changes... have you flashed 2.05 BIOS? :P
[Teclast X98 Air 3G] Cozla:
No i have 2.02 and don't want to risk flashing BIOS without 100% sure that new BIOS fix the problem. Before on 2.02 the indicator worked correct.
[Teclast X98 Air 3G] Lordof9:
Hey, i got a C5j6 (fw2.05) and running mirek190's Lolipop (v5.0). Its a dual boot with Windows 10 and Android. I also got this strange and heavy battery drops with Android. Tried a full charge and recalibrate with almost no success. The tablet is in planemode all the time. I have no SIM card in it. Wi-Fi is always enabled. Seem there are only battery drop while operating with the tablet but never on standby.

Greetings
[Teclast X98 Air 3G] ZilverZurfarn:
On the note of battery life - As I don't use 3G data very often, I took out the SIM card. The battery life increased significantly!
[Teclast X98 Air 3G] Crazy_Oni:
Hmm i have the AIR II, but istn`t at the quick settings the option to turn mobile data completly off?

Or it´s the automated search for near mobile networks.
[Teclast X98 Air 3G] ZilverZurfarn:
Didn't matter if I had mobile data on or off - No significant change in battery life. Taking out the SIM however made a (to me) noticeable difference.
[Teclast X98 Air 3G] hbeil:
replacing ANDROID Rom a big problem

Hi guys. I just noted that the Teclast X98 Air 3G is perfectly suited for Android 5 - Lollipop.

However, upgrading to that seems to be a path with many obstacles.

I have a Dual Boot 64 GB tablet. On the Windows side updating to Win 10 was a non-event, updating the BIOS to 2.2 a nobrainer.

Simple. I love Microsoft and Apple for that experience.

But the Android community seems to be left out in the dust. Inline upgrades seem impossible. We have to load ROMS and with some bad luck you'll end up with a barely usable ROM or a bricked machine.

The instructions on this forum are all similar in that that they do not explain why you would have to do some steps.

They go only: root here, Bios there, Rom here.

So here are my questions:

1. Do I have to root my device to wipe and replace my ROM? After all, we are putting the tablet in program mode when doing so. Should not matter.

2. Do I need to upgrade the BIOS to the Version 2.2 to load the Lollipop ROM?

3. The Manufacturing Flash Tool does not give any meaningful error messages that would allow troubleshooting. So why do I get stuck during the first few lines in the updating process?

Android 4.4.4 is currently on the machine, it is rooted, but I am not able to load X98_Air_3G_Dual.bin into the machine. THAT Process just stalls. So do I need to finish that step first? How can I make it install it. It just doesn't.

And then why does MFT give up on me?

See this image on dropbox:

dropbox.com/

s/

mytc4pjorxxd75b/

2015-09-23_114407.gif

Cite: To prevent spam on the XDA forums, ALL new users prevented from posting outside links in their messages. After approximately 10 posts, you will be able to post outside links. Thank you for understanding!

/Cite.

It always stops at the same spot. What is the problem?

I spent two nights upgrading Android with no success. I am short of selling the Pad and buying a new one . The new ones come with win 10 and Android 5 pre-loaded. A much better solution.

I cannot understand the positive feelings against Android - regardless of version _ I find the system hard to use, it mimicks Apple sometimes, soon Windows. There is no user friendly concept behind it. From my point of view it is a programmers toy. But not everyone has the time or knowledge to handle that. There are so many Android run handhelds out there. But they are all stuck in old Systems. No wonder that developing for Androids is such a challenge.

However. Maybe someone can help me out here. What are the required steps and why the heck is the Rom uploading failing on me?

Thanks guys
[Teclast X98 Air 3G] Crazy_Oni:
Interesting. So you don't have the option to choose automated scanning for mobile networks or not? so then it´s a possible solution, thank you, to remove the sim card.