yashsingh1/xdaforums huggingface dataset:
[Teclast X98 Air 3G] Graf Schmidt:
Android Lollip

A user some pages before asked if it was possible to install Lollipop Android.

Is it a bit premature to run some tests?

Maybe the device still lacks some new drivers for Lollipop?
[Teclast X98 Air 3G] juaaslo:
Thanks [MENTION=6077373]Graf Schmidt[/MENTION]!!!

I hope some guys can "adapt" what required. [MENTION=2198172]mirek190[/MENTION], could you explain what should be changed? Is this related with which batch BIOS applies for? I still have doubt about differences between versions and why ROM/BIOS work in different version of tablet, but still the difference is kept.

Thanks in advance!
[Teclast X98 Air 3G] antony84:
Hi, thank for this!

I would know if you have battery drain problem in windows sleep mode with this bios...

Also, is your wifi working correcly?
[Teclast X98 Air 3G] bibi63:
I think the dual bios is not so good.
[Teclast X98 Air 3G] melvincz:
I've tried to flash that file using the flash device C6J7. It doesn't even boot. Seems to be like bricked :) Flashing back the Air II BIOS (I've bricked the device accidentally, so I don't have original C6J7 BIOS - BUT I NEED IT!!!) the device comes to live again. Don't know what's wrong, guys.
[Teclast X98 Air 3G] mirek190:
We are using dualboot bios air 3g form leak adapted on Chinese forum so far. Is very old.

As sone people said single bios for windows or dual boot bios for air 2 do not have battery drain problem

PS.

Could someone post here dual bios for air 2 ? I don't want look all thread to look for it .

Because I finish work in 3 hours and at home try compare bioses and try adapt new one by using hex editor.

---------- Post added at 05:00 PM ---------- Previous post was at 04:56 PM ----------

Try compare that bios and other dual boot with the help hex editor - should first bits different . Just replace them from old one and should work.
[Teclast X98 Air 3G] Graf Schmidt:
WiFi is working perfectly and I didn't see any battery drain.

The only problem is sound not working perfectly :D.
[Teclast X98 Air 3G] murrun:
Guys, AIR 2 3G user here... I want to flash Android Rom but Hendrickson's video guide warn users about this parameters. Is this parameters O.K. with AIR 2 (without 3G)
[Teclast X98 Air 3G] antony84:
Good, to be sure, did you leave tablet in windows sleeping for some hours? How much was the battery consumption in %?
[Teclast X98 Air 3G] melvincz:
The BIOS provided by GrafSchmidt is the dual one? That's not my cup of tea, I'd like to stay with Windows only. That's why I don't have any dual BIOS to compare with.
[Teclast X98 Air 3G] Hendrickson:
I remember when I had my C6J6 first on Windows it was so much brighter the screen, well I turns out I remembered correctly, if you want a super bright display and don't mind the 48hz, then the first bios is so much brighter I just tested it in the sunlight today and its much better. Indoors the screen is so bright at max it burns my eyes.

Around 70 lux more bright in fact. Shame they turned down the max brightness on the dual boot bios.

---------- Post added at 04:37 PM ---------- Previous post was at 04:35 PM ----------

Yes it's fine, I have flashed my Air 3G and Air II with this no issues.
[Teclast X98 Air 3G] SUMMERBREEZE:
will this work also in mireks rom?
[Teclast X98 Air 3G] Graf Schmidt:
Nope I've never left the tablet in sleep mode with Windows 8.

---------- Post added at 04:03 PM ---------- Previous post was at 04:01 PM ----------

The bios I provided is from a dual boot air 3g.
[Teclast X98 Air 3G] antony84:
So, we cannot know if this bios is battery drain free! Can you please leave the tablet in sleep (windows) for some hours, and see how much battery it got on wake up?

Thank you!
[Teclast X98 Air 3G] Graf Schmidt:
Sleep mode/Hibernate, correct?

With what OS should I check battery then, still w8.1 ?
[Teclast X98 Air 3G] antony84:
This problem occurs only with windows, android has no problem, so you have to check it with win8.1.

And we are speaking of sleep mode, no hibernate.
[Teclast X98 Air 3G] the_jako:
I'm looking for that bios too. Anyone have it?
[Teclast X98 Air 3G] Akitoyo:
Guys, finally my local store has this item in stock :P Just reordered it :)
[Teclast X98 Air 3G] SUMMERBREEZE:
I am happy finaly you ordered it, it is great to see that you wil stay with us :)

You did a great job with gpu (pre-solution) :good:

I had ordered also on 8th Jan and it will deliver to me next week. I will let everyone know with my experiences
[Teclast X98 Air 3G] mirek190:
I'm asking about dual bios for air 2 again I need it to compare ....
[Teclast X98 Air 3G] jcespi2005:
Should work, but better try and report back ;)

Sent from my OnePlus One ;)
[Teclast X98 Air 3G] Franckydiam:
USB problem

Hello everyone,

I have a problem with my newly received C9J8 8.1 and my PC.

With the USB cable of origin, when the tablet is Android, it connects well and is recognized by my PC, but when it is in Windows, it does not appear at all.

I think I installed Windows drivers (using video in Hendrickson Method with "x98 Teclast pilot air 3g win"), so I do not understand.

Can someone help me?

Thank you in advance

;)
[Teclast X98 Air 3G] Graf Schmidt:
I've never understood properly the extravagant ways M$ used just to turn off a damn pc :D.

Suspension, sleep and hibernate are of course not the same thing. Under "turn off", "log out" etc, I have only "suspension" which is not the same as sleep.

How do I trigger "sleep" function? I surely need a keyboard with the right button on it. If that's the case, I can't run the test.
[Teclast X98 Air 3G] acc007:
No, it doesn't, at least on my mirek's rom. It has /etc/init.d directory, but if you create script file inside and give 755 permissions, it won't be executed during startup. I came up with a solution for mirek's rom, see this post: http://xdaforums.com/showpost.php?p=58127642&postcount=4790
[Teclast X98 Air 3G] jcespi2005:
Sure this method works fine on both ROMs as this script is launched on every start up...

Sent from my OnePlus One ;)
[Teclast X98 Air 3G] Akitoyo:
Just to be sure, the Air 3G with 2,16Ghz CPU is the C9J7 right? C8J7 would be the Air II?
[Teclast X98 Air 3G] grigoris_a:
Please check with Windows 8.1 .After Windows loads let it sleep by itself.Wait 15min and then push power button.Unlock it and then let it sleep again on its own.Wait another 11-15 minutes and open it again.

Open cmd as administrator.write this command powercfg /sleepstudy

You will find the report generated in /windows/system32 as sleepstudy.html

Στάλθηκε από το X98 Air 3G(C6J6) μου χρησιμοποιώντας Tapatalk
[Teclast X98 Air 3G] xxLeoxx93:
Guys, better ask here: http://xdaforums.com/android/help/teclast-x98-air-ii-t2935267
[Teclast X98 Air 3G] SUMMERBREEZE:
C8J7 is Air 3g also. (android version)
[Teclast X98 Air 3G] Akitoyo:
Crazy. So whats the difference between C9J7 ane C8J7? Do I see my version on the tab? I already looked at the screenshots of the bios, I didn't find a product number there :P
[Teclast X98 Air 3G] SUMMERBREEZE:
dual boot bios and come as android/win 8.1 flashed together from the factory. the only difference :)
[Teclast X98 Air 3G] Akitoyo:
Awesome! I ordered the DualOS version, C9J7:) thanks!
[Teclast X98 Air 3G] Graf Schmidt:
Lol, it should be written on the back of your tablet.
[Teclast X98 Air 3G] Akitoyo:
I don't have it here. I ordered it one hour ago or so.
[Teclast X98 Air 3G] SUMMERBREEZE:
also in android/settings/about the tablet

should be somewhere there

---------- Post added at 07:29 PM ---------- Previous post was at 07:28 PM ----------

at least you will have a legit windows copy and you will not be bothered with flashing stuff anymore
[Teclast X98 Air 3G] microb77:
OTA?

Maybe this is a silly question but is it possible to get the OTA updates with Mirek's ROM?
[Teclast X98 Air 3G] Akitoyo:
Yeah, first thought about getting the Air II without 3G. It was 28€ cheaper, but only android and I didn't want to change everything right after receiving the tab:P

They use Windows Bing versions, don't they?
[Teclast X98 Air 3G] qrious:
sleep mode

I found this on the Onda site ...may help...

Change SD host driver

Unfortunately there is a problem with the Intel SD host controller driver that's used by default. This problem prevents your tablet from entering a proper sleep state, which makes your tablet lose battery in sleep mode.

To fix this you can change to a generic SD host controller driver like this:

Enter desktop mode and go to Device Manager

Expand SD host adapters. then for each of the three entries in the list do the following:

Open the device, go to the drivers tab and select update driver

Select "Browse my computer"

Select "Let me pick from a list..."

Pick the driver called "SDA Standard Compliant SD Host Controller" and install it
[Teclast X98 Air 3G] mikbe:
Check the fourth post of this thread. But anyway that fix doesn't work.

It's a BIOS issue as mentioned dozens of times already. And it seems Air II with dual BIOS suffers from the same bug.
[Teclast X98 Air 3G] Akitoyo:
Does this batterie issue only occur on non dual os systems? I once read that.
[Teclast X98 Air 3G] mikbe:
It only occurs in dual OS systems and in Windows to be exact.
[Teclast X98 Air 3G] mirek190:
What is command do copy bios from device to the file in FPT ?
[Teclast X98 Air 3G] andreiv26:
Just bought a Teclast and it freezes :)

Hey guys!

I ordered my Teclast x98 Air dualboot 3G a week ago and it arrived today. Unfortunately, my tablet (like many others from what I hear) freezes when I try to play a game in Windows and even when I open multiple tabs on IE Metro. When I say freeze, I mean the screen just goes black all of the sudden and the only solution is to keep the power button pressed for more than 5 seconds and shut it down.

I have read in some previous threads that there is a GPU solution for Android, but I was wondering if any new BIOS version with a fix for this has come out yet. I know that Hendrickson on his blog had a driver update for the INTEL HD cards. Has anyone tried that?

Please let me know if there is a solution for this or do I have to wait more for Teclast to release a BIOS fix.

P.S. Are there any GPU frequency-tuning software for windows which I can use to lower my GPU frequencies on my Teclast?

Thanks in advance guys,

Andrei

:)
[Teclast X98 Air 3G] Akitoyo:
[MENTION=6353809]andreiv26[/MENTION]

No new bios. Only the work around for android is available.
[Teclast X98 Air 3G] Ed Banger:
My X98 Air 3G from the aliexpress sale has arrived. Everything was working quite good until i restarted and did the windows updates. However, after the reboot the mobile data (sim-card modem) isn't working anymore. Is there a driver I should install?
[Teclast X98 Air 3G] Graf Schmidt:
Is sound working perfectly to you?
[Teclast X98 Air 3G] smartchip:
Unfortunately, there aren't many options for tuning the bay trail's integrated graphics under Windows. The fix in Android sets the GPU clock speed at 400mhz instead of allowing the GPU to burst when required. Seems stable enough.

I've found that in Windows you can enable "Display Power Saving Technology" (under the "Power" options of Graphics Properties) and set the slider to Maximum Battery. This turns down the screen brightness a little, but seems to help. Where I used to get freezes on Torchlight 2, I'm now able to play continuously for about an hour without freezing. Don't have any other games to test with, so don't know how helpful this is on more intensive 3D games. Give it a try.
[Teclast X98 Air 3G] andreiv26:
Actually I think it was my fault. I was playing on the tablet while it was charging. The freaking charger adapter is so hot and also the tablet's back turns really warm to hot even.

Ever since I'm playing on the tablet running on batteries it got really cold and it doesn't seem to get warmer. The tablet didn't freeze anymore and I'm playing for one hour already. I should mention I'm testing the Half Life 2 game. Let's hope it was just because of the charging in my case...
[Teclast X98 Air 3G] mirek190:
I modified C9C8 bios - but I need someone with flash programator because I don't know that bios brick the tablet or not !
[Teclast X98 Air 3G] Akitoyo:
[MENTION=2198172]mirek190[/MENTION] what did you change? What should it fix?:p *excited*
[Teclast X98 Air 3G] SUMMERBREEZE:
Welcome to the desperate X98 Air 3G owners club! :D
[Teclast X98 Air 3G] mirek190:
This is my first attempt - I compared first my dumped c6j6 ROM to dual boot bios that works on 100 % and was trying to find differences in first sectors and last ones - later compares that differences in c9j8 and change few bits from dualboot bios.

If still won't be working then I use bios tools to unpack bios and just replace drivers inside....

btw.

Today I should finish build CWM and hope will be works fine :p:fingers-crossed::fingers-crossed:
[Teclast X98 Air 3G] Akitoyo:
[MENTION=2198172]mirek190[/MENTION] sounda great. So you try to solve the Windows battery issue? Would love to test it, but I haven't got my tab yet:/
[Teclast X98 Air 3G] antony84:
In windows we have sleep, hybrid sleep and hibernation. We are speaking of sleep mode, but i don't know which button you should trigger to go to sleep, maybe someone can answer you (my tablet is on the way.. didn't get it yet).

---------- Post added at 11:36 PM ---------- Previous post was at 11:33 PM ----------

[MENTION=2198172]mirek190[/MENTION]

Are you sure 1.05 bios have battery drain problem fixed? [MENTION=6077373]Graf Schmidt[/MENTION] didn't confirm it.

I follow the thread from months, and i read only single bios C6J7 and single bios of Air II are working good. So seems all dual boot bios have battery drain problem...
[Teclast X98 Air 3G] Graf Schmidt:
Ok if "sleep" it's been translated to italian "sospensione", and it's triggered by power button as well, then it still drains battery (I can't see no reason why it shouldn't).
[Teclast X98 Air 3G] grigoris_a:
Of course it drains.But it should not drain more than 5% per 16hours.That is connected standby.The problem all face with dual boot is a drain of 5-7% per hour.You can see that if you take a sleep study report.

Στάλθηκε από το X98 Air 3G(C6J6) μου χρησιμοποιώντας Tapatalk
[Teclast X98 Air 3G] Graf Schmidt:
Then tomorrow I'll run a few more tests, with battery fully loaded, but in an hour I've seen a considerable drop to the order of 2-3% of the battery.

I'll take a better look tomorrow anyway.
[Teclast X98 Air 3G] grigoris_a:
You don't have to let it sleep an hour.15 min will do.If after that take a sleep study report and the period is marked in red then you are off spec.

Στάλθηκε από το X98 Air 3G(C6J6) μου χρησιμοποιώντας Tapatalk
[Teclast X98 Air 3G] antony84:
A fast question: for entering in bios, i need a keyboard? If yes, to connect a keyboard, i need an OTG cable? I would check my bios when my tablet will arrive next week.
[Teclast X98 Air 3G] SUMMERBREEZE:
YES for both of ur questions
[Teclast X98 Air 3G] whymoo:
Taipower OS, tUI 2.0, tOS

Official forum post

http://bbs.teclast.com/thread-264340-1-1.html

Official download links

C6J6 http://pan.baidu.com/s/1ntNwwdz Password: 5jks

C6J8 http://pan.baidu.com/s/1bn6LLnx Password: y4ed

C9J7 http://pan.baidu.com/s/1dD3tR3r Password: xqxj

C9J8 http://pan.baidu.com/s/1bnq6JIf Password: u2qb
[Teclast X98 Air 3G] timumi:
Caution:

These are trial Android OS released in the Teclast forum for beta test, you'll not be able to get future OTA updates.

You will have to reflash official OS in order to get official updates.
[Teclast X98 Air 3G] sauliusz:
http://cloud.video.taobao.com/play/u/865143597/e/1/t/3/p/2/21646749.swf

First video I have seen of Onda V919 3G
[Teclast X98 Air 3G] Perfectdevil:
Are you MAD?? You want to play call of duty on this tablet????
[Teclast X98 Air 3G] abanglek:
clock different fix for dual x98

I'm creating windows registry for that issue, double click & restart.
[Teclast X98 Air 3G] BPM:
just for showcase ;)

played 3h farcry 2 on the tab yesterday. works well ;)
[Teclast X98 Air 3G] moonmilk:
C9J8 model... 99% to 92% in one and a half hours in sleep mode with occasionally unlock for fun... Battery drain or not?

Sleep mode in a sense that I push the power button once

Update: i think im in connected standby mode instead of sleep... Sorry new to windows os..Fill me in if im wrong :/
[Teclast X98 Air 3G] cvfancypants:
Charging Issues Solved for me

Hey, 1KeNnY1KeNnY1, I watched your video on youtube. I also have a teclast x98 3g. At first, I thought I was having the same problem with the tablet, but it seems that this tablet barely charges when using stock chargers (even when at 5V 2.1A). Have you tried the Belkin BoostUp (5V 2.4A)? I'm currently using that and I get around 800-3000 mW (depending on usage) charge rate from the battery bar pro program while using it. It jumps to ~6,000 mW when off. Experimenting with cables and chargers, I notice that tablet tends to charge when either the voltage is higher than 5V (like a samsung note 3 charger) or the amp is higher than 2.1A (like the Belkin Boostup). It is

important

to note that I was using the given micro usb which I noticed has 30V rating written on the cable (maybe that is why the cable is a bit thicker). The tablet didnt seem to like the other cables I had.

So out of 8~9 chargers I had (most of them being 5V 2.1A) these combinations worked for me:

Included Chinese Charger (TP-U25)- 5.0V/2.5A + Included USB cable

Belkin Boost Up (F8J040kr)- 5.0V/2.4A + Included USB cable

Samsung Charger (EP-TA11KWK)- 5.3V/2.0A (attached USB cable)

None of the chargers worked with any other cables for some reason while the table was on.

Portable Power Banks seemed to only work when the tablet is not in use (sleep/off). Although the power banks seemed to maintain the battery or slow the discharge of the battery (haven't tested how long).
[Teclast X98 Air 3G] pixelgr:
Teclast x89

Hi i got the teclast x89 win only now there is a dual boot version any1 got bios etc etc to make the x89 dual boot?

Or will x98 bios work?
[Teclast X98 Air 3G] mirek190:
This is not threat for x89 !!
[Teclast X98 Air 3G] grigoris_a:
Please open cmd as administrator and type powercfg /sleepstudy

Then go to/windows/system32 and find the file sleepstudy.html and upload it.
[Teclast X98 Air 3G] d-dsn:
Did you have everything working in the beginning and your tablet developed this charging issue when you plugged in an USB OTG hub? We others have developed this charging issue by using those cheap OTG hubs.

I have been charging my tablet with the supplied chinese charger (fingers crossed) and occasionally with the one that came with Asus TF700 -tablet. In the beginning both of these chargers worked flawlessy, but now neither one will charge, except when turning the device completely OFF. Asus charger is 5V/2A. I can try 5.3V with a laboratory power supply tonight, though I don't know if the tablet checks data- and data+ for some voltage etc.
[Teclast X98 Air 3G] Nuja:
hi,

Anyone know why install-recovery-2.sh wont execute at boot ? its permission is 755, when i execute it maunaly it works (checked with cat) but at boot its not executed :crying: . (im using mirek's rom)
[Teclast X98 Air 3G] FrGeorge:
I have the same problem. I can change the frequencies using

echo 400 >/sys/class/drm/card0/gt_min_freq_mhz

echo 400 >/sys/class/drm/card0/gt_max_freq_mhz

but the install-recovery-2.sh file is not executing at startup. It's not working either when i try sh command. Gives me the following error:
[Teclast X98 Air 3G] Nuja:
to be clear: for me the commands work, executing the .sh file work, its just no being executed at boot.
[Teclast X98 Air 3G] jorjee001:
Hello Friend, I just buy X98 Air II Dual OS and found some problem on Android system.

The brightness auto dimming up and down by itself. But This tablet no light sensor and cannot set auto brightness.

Anyone can help?
[Teclast X98 Air 3G] 1KeNnY1KeNnY1:
Charging issue

Hello buddy,

thanks mate. I tried all chargers and cables, even the stock one that came with tablet. It does not charge when it is on. Before that everything was working. The charger HUB is to blame, so people BEWARE of using the powered HUBs you could brick your tablets, and so far there is no possible repair.

I tried to update the BIOS for the newest version even different like C9J7, but no change after Bios update.

BTW other mate form my country (having Android OS) had the same issue after using cheap USB HUB, he repaired the issue with reinstalling the battery management drivers and now it charge for it ! But I tried to update, uninstall Microsoft ACPI driver, but no change. I will have to try re-installing Intel battery management services, that came with tablet, I have downloaded drivers, just need to find time to test this out.

as for other things

here are drivers you can download for Teclast X98 Air II / 3G

http://pan.baidu.com/s/1gdDxxBl

and also here are all related topics on chinese forum with same issue I experience, there are quite more also on 3G version

http://bbs.teclast.com/forum.php?mo...xtra=page=44&filter=lastpost&orderby=lastpost

http://bbs.teclast.com/forum.php?mo...extra=page=5&filter=lastpost&orderby=lastpost

http://bbs.teclast.com/forum.php?mo...xtra=page=12&filter=lastpost&orderby=lastpost

http://bbs.teclast.com/forum.php?mo...xtra=page=12&filter=lastpost&orderby=lastpost

http://bbs.teclast.com/forum.php?mo...xtra=page=16&filter=lastpost&orderby=lastpost

http://bbs.teclast.com/forum.php?mo...xtra=page=22&filter=lastpost&orderby=lastpost

http://bbs.teclast.com/forum.php?mo...ge=22&filter=lastpost&orderby=lastpost&page=2

As for the Battery power bank, it is possible to release maximum 12 Watts, and was charging with 7,4 Watts before I got an problem of no charging.

---------- Post added at 03:01 PM ---------- Previous post was at 02:54 PM ----------

I am using same HUB that Hendrickson is using for few months.

After first try, like in the video I have made, after that final full charge, I am no longer able to charge the tablet in Windows / ON mode.

So I think there should be a warning, that using powered HUBs could damage the charging on your tablet.
[Teclast X98 Air 3G] Heavy-MatIll:
Selfmade cable 18 AWG

It does not check for DATA- and DATA+. To increase charging current i made my own cable out of 18 AWG wires. The cable is only being used for charging so i only connected VCC and GND. With the 2 m cable I get between 2.1 A and .7 A (depending on how full battery is and maybe temperature of charger?) when the screen is off and 2.4 A while using the tablet/screen on. I am using the original charger and Android OS x98 Air 3G.
[Teclast X98 Air 3G] rwanek:
I have a hdmi out problem on my HG5N windows-transformed AIR II - the TV says "no signal" but when I disconnect it says "check signal cable" so there must be some connection, but I checked on 2 TVs, one microHDMI-HDMI adapter, and now on single microHDMI-HDMI cable. "No signal" on both TVs, is it hardware failure or something in Windows, maybe have to activate it somewhere, BIOS, newer drivers?

I have windows with bing from this topic, everything is working OK, just this hdmi-out is not working.

is your hdmi-out working out of the box?

thanks for the tip!
[Teclast X98 Air 3G] FrGeorge:
3d fix

Found another way to set the gpu frequencies with ease.

Download app Command Runner from play store and make a command with the two lines :

echo 400 >/sys/class/drm/card0/gt_min_freq_mhz

echo 400 >/sys/class/drm/card0/gt_max_freq_mhz

You can save the command and run it after reboot.

Only works if you are rooted.
[Teclast X98 Air 3G] bibi63:
Can I revert original bios? Dual bios not good yet.

Thanks.