yashsingh1/xdaforums huggingface dataset:
[Teclast X98 Air 3G] moonmilk:
So everyone is having this issue as well? I need to know because if its faulty I might have to send it back because I use headphones a lot.. Can anyone confirm that headphones with microphones like the iphone headpones do have a problem with the headphone jack?

Update: I use a normal 3 pole 3.5 headphones without microphone and it works perfectly.. My 4 poles iphone earphones can't work properly..

Can anyone confirm this for me? Thanks Lots guys
[Teclast X98 Air 3G] mirek190:
Yes that's true .

Teclast uses open standards for jacks not iPhone standards .
[Teclast X98 Air 3G] Kaiser Souze:
I've turned off, but after turned on it enter in bios setting.

What I do for show android logo? Esc?
[Teclast X98 Air 3G] xusso:
Should be Volume + and power button at the same time.
[Teclast X98 Air 3G] lrobberl:
Ok guys I finally got my tablet, model C9J7 and apparently I've won the Chinese lottery!

The first thing I did was to test RR3, version 3.0.1: no freezes and actually good responsiveness... (I played for like 5 minutes with the highest settings, and it worked fine, apart from two thermal throttling, or whatever that was, notifications).

Now I'm doing the benchmark with the application that SUMMERBREEZE put in previous posts, and it works fine (1080p). Again no freezes and around 8-9-10 fps each time I try it.

What do you think? Am I right to think I'm lucky or should I do more tests?

How can I know the amperage at which the tablet is charging? How do I check all the battery stats? Cause I don't want to have problems with cells not recognized or stuff like that... How do I check it?

EDIT: can it be that the GPU has been underclocked? I don't think so cause I bought the tablet right on the 18/12... The fix wasn't out yet... Anyway how can i check it to be sure?
[Teclast X98 Air 3G] keijo922:
Unresponsive screen

My beautiful tablet doesn't response to touch.

I have always kept the tablet in a case and never dropped it, so there shouldn't be physical damage, I haven't flashed the device either.

Restarting doesn't help either. Any tips how I could resolve the issue?
[Teclast X98 Air 3G] ahmed1994:
What did u did!? Suddenly?? Or it is new from package ??
[Teclast X98 Air 3G] Hendrickson:
Wifi issues is related to Bluetooth use.

Okay, I haven't been using my bluetooth keyboard or mouse for a while and I tried it again today and I found my Wifi performance is horrible when using the mouse.

I can run speed test and get 100% exact same speeds and my desktop without BT in use.

Connect my mouse and move the mouse around when the test runs and the speed is horrible.

So those that have wifi issues, check if your using bluetooth, disable it and retest speeds and see if its related.
[Teclast X98 Air 3G] Jote:
This could be hardware problem. Both are working on 2.4GHz and interference might be the problem. Either failed antenna design or "leak" on pcb.
[Teclast X98 Air 3G] mirek190:
That's normal because wifi and bluetooth uses the same frequency ....2.4 GHz.

If we had wifi on 5 GHz then won't be any problem.

But you can improve performance - check in your rooter settings. Find something like control packages or wifi noisy environment .

After setup such settings on my rooter and now while working my bluetooth headphones I have ping 20 ms and speed 30 mbs.

Earlier I had 100 ms and 1 mbs .
[Teclast X98 Air 3G] Hendrickson:
Do we know if the realtek 802.11n chipset supports 5Ghz wireless? I'll check my router for a setting.
[Teclast X98 Air 3G] cassopolis:
stuck

Hello everyone

I really need helped. Someone try to uninstall on the tablet android, so now I have a black screen with "dnx mode waiting for fastbood". I try to reset with the power button and volume it doesn't work. what should I do you reset and reinstall correctly android and having my tablet back:)

thanks
[Teclast X98 Air 3G] smartchip:
Yep, Wi-Fi + BT on 2.4GHz = interference.

Check that your Bluetooth devices are at least BT 3.0. Read somewhere that the interference is mitigated. You can also switch channels on your router to find a less crowded one.

Seems I'm fixing stuff with this tablet more than I'm enjoying it.
[Teclast X98 Air 3G] SUMMERBREEZE:
it seems good :) u r one of the winners of the lottery :D
[Teclast X98 Air 3G] LuHash:
Just reminding, because I see no replies :)
[Teclast X98 Air 3G] HDtracer:
Hi, I cant find any headphones with mic that work on this table. Like you say 3 pin all good, any 4 pin sounds like you are underwater.
[Teclast X98 Air 3G] gangrel76547:
I've got an hg6n Air II. When I first got it, using Bluetooth would not only slow down my internet, it would cause it to randomly disconnect on Windows. I checked the teclast drivers site and noticed an update that had WiFi in the title. I installed it in Windows and since then I've had no problems using WiFi and Bluetooth together. No clue what it is or does, but my problem is sorted. Leaving it here in case it might help someone else.
[Teclast X98 Air 3G] microb77:
How to update Android Kernel on Dual Boot

Hi all,

So, my tablet runs on the dualboot found in the 2nd post. Windows runs well, so does android. I am really interested in one of the alternative bios, as mine still has some of the chinese apps which I can't seem to uninstall correctly.

Right now, the only time I got to re-install one of the 2 OS (either windows or Android), I had to go through the whole process of

Use Intel Flasher to flash Android then re-install windows (as the former always "wipe out" windows).

There HAS to be a way to just re-install android once it is running, no? Anyone could point me to a tutorial on how to do this? Or can't it be done?

Thanks!

:confused:
[Teclast X98 Air 3G] mirek190:
Yes is possible just use my rom with XML file - flash only system ( android ) - windows won't be touch.
[Teclast X98 Air 3G] microb77:
Using Intel Manufacturer Flash, right?
[Teclast X98 Air 3G] mkumar12345:
Tablet bricked - trying low level flash

Hey guys, my tablet bricked due to a faulty bios. So I am trying the low level flash using

1) "EEPROM Flash BIOS USB Programmer CH341A" and

2) "Flash Chip IC Test Clips Socket Adapter Programmer"

I opened up the tablet. I have the .bin bios file and also the CH341A software.

I connected the CH341A to the Test Clips. But the Bios chip itself on the tablet has a metal cover and the opening is so small that I can't get the clips to attach to it. Please see attachment for an image.

How can I attach the clips? Do we need to open up the metal cover? Can someone who has done this provide some guidance?
[Teclast X98 Air 3G] ImJamIN:
Which version is your tablet?

it's different from the other photos...
[Teclast X98 Air 3G] mkumar12345:
Its the Teclast X90HD. But I am guessing the process would be the same as for X98 Air, and some of the people here have probably done this? Does the X98 chip have more space around it to easily put the clips on?
[Teclast X98 Air 3G] d-dsn:
Charging problem

Regarding the issue when tablet doesn't charge when powered ON, but charges when powered OFF:

My tablet developed the same issue yesterday after using a cheapo USB OTG hub. I had connected the other end of the hub to a +5V USB charger and my intention was to charge and have USB simultaneously. After plugging them in my tablet gave me an error about "USB device malfuctioned..." and charging inside Windows haven't worked ever since. USB devices like memory stick do work, even the that cheap hub works great.

If I boot my tablet to BIOS and swap USB OTG with charging cable, it still doesn't charge. I can tell it by sensing the charger temperature. Do we have an HW issue or potentially ****ty quality chinese USB hubs?

My hub is this one from eBay (couldn't post a link):

White OTG Multifunction USB 2.0 HUB+Micro USB TF Card Reader for Samsung HTC
[Teclast X98 Air 3G] microb77:
Ok, I would like to shed some light here in case someone else does the same thing I did.

I installed the DualBios following the 2nd post, and it works well. I did it a couple of time, not knowing I could only re-install Android.

I used Mirek's bios, and using the Intel Manufacturer tools, I was able to re-flash Android (only) using flash-system_only.xml, nothing else.

It worked like a charm! Android runs just fine, so does Windows.

My next question, following the tendency, is will we (and when will we) see 5.0+ on this tablet? :D
[Teclast X98 Air 3G] access222:
won't turn on

I tryed to boot windows from stick to install windows..and didnt boot and turn off now is not turning on.. any help?
[Teclast X98 Air 3G] mirek190:
In my opinion even port cm 5.0 to our tablet shouldn't be a big problem beacuse the tablet uses standard hardware for intel and kernel hasn't drivers inside , drivers are as modules so shouldn't be a difficult to port it I guess.

Or maybe teclast resale android 5.0 :)
[Teclast X98 Air 3G] Hendrickson:
That tablet isn't an X98 Air 3G, mine didn't look like that, just remove the metal shield top cover. On the Air II just pull back the metal heat spreader. I've flashed my Air 3G and Air II without an issues. Both done with the battery connected and charged.

No effect for me, using both my bt mouse and keyboard renders wifi so damn slow I can even download a 1mb file. Will a 5Ghz wireless N router fix this anyone know?

I have a pair of quadbeat 2 LG headphones and they work with a cheap ebay iphone to android converter plug.

Looks like another tablet he used as a reference I think, that is no X98 Air 3G / Air II.
[Teclast X98 Air 3G] HDtracer:
Hmm wonder if I have more of a problem.

I have some quad beats but haven't tried them with an adapter ( got one some where).

My Logitech UE6000 headphones have an Apple specific cable and mic but have the same problem.

Also whenever I plug in any 4 pole plug Google now/voice search goes into a continuous open, speak now, close, open speak now, close loop until I unplug the headphones.
[Teclast X98 Air 3G] mkumar12345:
This is the X90HD tablet sorry should have mentioned. I am having a strange issue. I fire up the CH341A Programmer software and when I plug in the CH341A USB port to the computer the software shows a message at the bottom right saying "Connected" but as soon as I plug in the clips to the chip on the tablet, it immediately changes to "Not Connected" and all the buttons get greyed out. What gives?

I do get a Windows sound when I connect the clips to the chip so it is detected but I can't do anything in the software. Is it a driver issue or are one of the connections not correct. I connected the programmer to the clips as shown in the attachment and I am using the 25XX port on the Programmer.
[Teclast X98 Air 3G] Graf Schmidt:
I've got my Teclast x98 Air 3g (C9J8) today from EtoTalk, and it seems to have audio issues.

In fact audio isn't working on android and in win8.1.

Under Android I can only play sound notifications under audio options, so defective hardware it's unlikely. Custom ROM problems? Am I the only one with these issues?
[Teclast X98 Air 3G] Hendrickson:
I remember it made the audio beep noise it was connected and then I just went ahead and flashed it. Sounds like maybe its a driver issue or your connecting it the wrong way maybe? pin 1 to pin 1?
[Teclast X98 Air 3G] lrobberl:
I have one problem..

Wifi seems slower than my connection is on both Windows and Android. I tried the hendrickson fix, updating both Bluetooth and wireless drivers but things didn't get better. I disconnected Bluetooth, so it cannot affect the slow speed issue but the problem is still there... Any ideas?
[Teclast X98 Air 3G] aaurin:
Win 8.1 with Bing

Hello,

once again: do you have any working mirror for Windows with Bing that I dont have to activate?

KR
[Teclast X98 Air 3G] Kaiser Souze:
Hi,

I did installation of Windows 8.1 PRO like a charm.

Now I have a complete dual boot tablet.

Only 2 question:

1) Windows show message on desktop about secure boot.I've tried to disable it from bios,but I can't find the option in bios.Anyone had fix similar problem?

2) I don't understand if when the tablet is turned off I must press only power button or power + vol up buttons contemporanely.. and for how many seconds.

Thank for your help
[Teclast X98 Air 3G] gangrel76547:
5 GHz router won't help. The tablet does not have dual band wifi. It only has 2.4 GHz. And yes, before anyone asks, I have a dual band router running a 5 GHz network. The tablet doesn't see it.
[Teclast X98 Air 3G] access222:
My tablet dosent want to turn on anymore and it dosent show is charging when connected to charger.Any one has this problem?
[Teclast X98 Air 3G] mirek190:
Yes.

Try to change rooter configuration.

Add option for noisy environment or increase control packets - check on Goole.

---------- Post added at 02:03 AM ---------- Previous post was at 01:59 AM ----------

I have dual rooter too . And in know perfect that is working only on 2.4.

As I suggested people if want using bluetooth at the same time they must improve settings in rooter.
[Teclast X98 Air 3G] slayer_lionhart:
Is there any else solution for drain battery in windows? I have tried the solucion of few pages before but it didn't work for me....

This solution was this:

main problem is very old (year 2006) driver of "Intel SD Host Controller", they are 3 in Device manager. Only thing what you need is update driver.

1) start Computer Management (hold My Computer and select Manage)

2) select Device management

3) find SD Controllers, if you click on it, there are 3 "Intel SD Host Controller"s

4) hold on every one controller, select "Update Driver", select driver from computer, and there is another option "SDA Standard Compliant SD Host Controller", install driver, confirm restart of computer after last update install

5) reboot
[Teclast X98 Air 3G] Hendrickson:
Thanks for the info, I will just have to use an external Wireless N dongle when using BT... :( My Wireless 300M router doesn't have any packet control or for noisy environments settings.
[Teclast X98 Air 3G] mkumar12345:
I am using Windows 8.1 on my host computer to perform the flash. There may be a driver issue. When I tried to manually run the SETUP.exe file to install the driver it keeps failing saying "Driver Install Failure". However when I connected the SPI Programmer to the computer's USB drive some driver was automatically installed by Windows.

So I am not sure why the manual driver install is failing. Any ideas?

I made sure Pin1 to Pin1 is connected as per the attached diagram.

Also in the attached diagram, where it says "Open > Program", "Close > On Flash". Does closed mean I should keep it on or take it off?

This is getting to be really frustrating due to lack of clear directions anywhere! Very much appreciate your help Hendrickson!
[Teclast X98 Air 3G] arthurdub:
is there an adb driver I need for me to change any shell options. It doesnt seems to locate the device as of now.
[Teclast X98 Air 3G] HDtracer:
Try searching for "minimal adb and fastboot" program on the web.

Has all the drivers etc and works well.
[Teclast X98 Air 3G] abanglek:
Hi everyone, i'm reporting for my x98 3g 8jan qkqi. Yah, arrive yesterday, I'm just opt for free ems snail mail.

Hardware: C9j8, Toshiba ssd

Software: W8.1, android 4.4.4

So far I'm not doing too much stress test, just few time antutu on android (33.7k-34.9k score) & geeks3d furmark on android (2fps 1080/720 test - nothing to shout about). So far nothing weird, just got warning when too much stress. I think I'll not further test it, as I know it's not severe if i got bad gpu, because for normal apps & casual games no weird behaviors.

Issues: Out of box yellow/brown-ish screen temperature, but it's cure after few hours, now I'm happy to see it's more white. Wifi is bad, seriously.. Not only speed, but connections itself. I have wifi inference wifi issues at my house that create blank spot in some area. When other device still survive, this tablet had lost the connection. I hope it's temporary or maybe later I'll try to hardware hack the antenna. It's still okay, but not perform well.

So far I'm done change total English in windows & rooting & install closed in android. Maybe later if I will re-partition as I'm definitely using windows on this tablet, android just good to have features as I'm using windows phone.

---------- Post added at 12:21 PM ---------- Previous post was at 12:19 PM ----------

*Xposed -why my phone change I to -closed
[Teclast X98 Air 3G] mnitstanley:
If C6J6 | C8J7 | C9J7 | C9J8 have the exact same hardware, then why do we Teclast have separate software download page for different batches ?

The brand of eMMC and difference in partitioning & BIOS could be the only difference between these models.

Then why so many ROMs ? Why these ROMs are not interchangeable ?
[Teclast X98 Air 3G] 84.hp.bluestacks:
after clearing some of the 32gb version, now come the 64gb version......

http://h5.m.taobao.com/we/pc.htm?feedId=430340049
[Teclast X98 Air 3G] access222:
Dose Screen Cast work for you guys?Conecting to my tv. and tv just say loading.
[Teclast X98 Air 3G] vpx:
1) you can't set it in BIOS, it should be solved by installing KB fix from Microsoft, just Google it

2) it looks, that you have not set power button to sleep, but to power off, try change it in power options in win control panel
[Teclast X98 Air 3G] vpx:
I have another hint to try. I think battery drain may be caused by OneDrive sync (even it is turned off), in my case is OneDrive on SD card. I will try to completely disable it and will measure it.
[Teclast X98 Air 3G] Jiri_S:
Great news ! :)
[Teclast X98 Air 3G] ImJamIN:
Hi to all,

Can you look at your bios version?

Thank you
[Teclast X98 Air 3G] abanglek:
Em, I don't have keyboard around me (just have lappy), but according to msinfo32, Ami 5.6.5 21/11/2014..
[Teclast X98 Air 3G] ImJamIN:
Hi jcespi2005,

I've tried to fix GPU issue with install-recovery-2.sh file, but with no luck; the frequency remains the same.

Do you have test it with your rom ?
[Teclast X98 Air 3G] Graf Schmidt:
How do I enter the BIOS? Wireless keyboard and hitting "DEL" before POST ?

Ok, done, but I need to post external links, and I must wait 5 more messages :|.
[Teclast X98 Air 3G] craigg123:
In your router settings change your wifi channel to 11, should fix the issue. It worked for me at least. If the wifi channel is on auto it will usually use channel 6 which is the standard channel and the same that Bluetooth uses, that's why you have the interference.
[Teclast X98 Air 3G] Graf Schmidt:
I can't read chinese :D.

And how much USD/EUR are 1200 yuan? :D

---------- Post added at 11:39 AM ---------- Previous post was at 11:32 AM ----------

I would really like to see Lollipop on Teclast x98. The problem is, you would lose dual boot

every

time you flash new ROM:D.

But of course I find little use of Win8.1 without keyboard and mouse - resolution is too high and display far too small.
[Teclast X98 Air 3G] ahmed1994:
I found 1200¥ equals 209$ ???
[Teclast X98 Air 3G] Graf Schmidt:
Still for now I can't see it on EtoTalk.

Anyway, this is

my

BIOS screen:

Do I need an upgrade in order to make sound work?
[Teclast X98 Air 3G] mirek190:
Bluetooth uses almost whole range between 2.3- - 2.4 GHz around 85 Mhz maybe chanel 11 will be better.
[Teclast X98 Air 3G] ImJamIN:
No, your bios it's the newest since dual boot. So you should make a dumb of your bios to share with us...:):beer:

p.s.: we know that there is a newest bios tpad 1.09 but we haven't find it on new x98. Probably your bios 1.05 can have sound problem, but if you want to be sure that it's a bios fault, first make a backup of your bios, then you should test bios version 1.03. But be careful
[Teclast X98 Air 3G] Graf Schmidt:
I'm not sure it's wise to roll back to 1.03. Bricking probability is very high.

I could share my 1.05 though, but I have to find the right guide to do it :D.

Could my sound issues be related to defective hardware? The speakers are not "loud" enough, but again I don't know if that's intended.

The only guide I found is this:

http://ao2.it/en/blog/2014/11/21/teclast-x98-air-3g-cheap-intel-bay-trail-tablet-getting-acquainted

Not sure though if it's safe.
[Teclast X98 Air 3G] mnitstanley:
It is strange to see that some C9J8 is shipped with BIOS v1.0.3 and some with v1.0.5. However, the Intel GOP driver version remains the same so probably some other fix like battery drain included but not the GPU fix.

Even stranger to see v1.0.5 is dated 12/30/2014 but the awaited and rumoured v1.0.9 is dated 12/29/2014. :confused:
[Teclast X98 Air 3G] vpx:
So I tested it.

Conclusion: disabling OneDrive sync and OneDrive service nor disconnect MS Account from profile will not increase battery life :(
[Teclast X98 Air 3G] ImJamIN:
HI,

I don't think that downgrade can brick tablet, but, I understand your position.

So, this is the method for dumb your bios:

- install all driver that you find in the first page (iSocUSB-Driver-Setup, IntelAndroidDrvSetupx.xxex and if you want ManufacturingFlashTool_Setup)

- download fpt from here http://www.mediafire.com/download/lk13snj439vs6w4/fpt.zip

- reboot to Android

- tick Debug USB under Developer Options

- connect X98 to pc

- Run FPT backup

Now, you'll see a new .bin file in you directory. Rename it to C9J8_1.05.bin (so we know that it's a new version); zip and share it.

Thank you
[Teclast X98 Air 3G] jcespi2005:
Nop, sorry, no problem with my C6J6, games works fine for me ;) but you should create a script on init.d folder inside /etc with 0775 permissions...
[Teclast X98 Air 3G] ImJamIN:
I've already tried it but no success.

If I use terminal i can set it, but with script .sh or init.d the value aren't overwritten.
[Teclast X98 Air 3G] Graf Schmidt:
Ok, just to be clear and to procede with extreme caution: I've installed iSocUSB-Driver-Setup, IntelAndroidDrvSetupx.xxex without having the Teclast plugged in. Is that good ?

A backup procedure should be a read only, but ... with this chinese hardware bricking it's a scary possibility :D.

Ok, backup done... I just need to find where the backup is now, under /data I can't find anything.

P.s.: I must assume adb.exe is unable to create directory where those doesn't exist. there is no /local/tmp/*whatever under /data. And try to find _bios.bin with es file manager does not return any values.

P.p.s.: could be a superuser problem, the one I can't see any folders in /data.
[Teclast X98 Air 3G] germancf:
not work touch screen (only android)

help me I'm desperate. First sorry for bad English. I received the tablet and I could use it as normal until being in android and internet browsing I was frozen and had to force it to turn off. Once in android again I see DOES NOT work TOUCH SCREEN, I have to use a mouse to use android. In windows and dual menu if it works normal.

I follow the tutorial to change the rom, I used the two in the tutorial (c6j6) and still not working the touch (android)

.

What I can do?
[Teclast X98 Air 3G] jcespi2005:
Do you enable the "Trust system user" on SuperSU? Just in case...

Anyway, i'll give a try to find a solution on boot to write those values ;)
[Teclast X98 Air 3G] antony84:
Sorry, but my question is... we wrote a lot of pages here, but someone sent email or other to teclast reporting wifi e drain battery problems?

They know about 3D game feeze, but i think and i'm worry they don't know about other problems.

Could someone writing english better than me send them an email reporting detailed problems?
[Teclast X98 Air 3G] mirek190:
Have you tried use orginal teclast windows with bing ?

People say on that windows battery drain not exist.
[Teclast X98 Air 3G] the_jako:
Is there any mirror of that windows?? The chinese sitr doesnt work for me :(
[Teclast X98 Air 3G] antony84:
Really i read all people having dual boot bios have battery drain, only people having original windows bios don't have this problem!