yashsingh1/xdaforums huggingface dataset:
[Device Reviews and Information] gufte:
Did a factory reset on Android and now the Dual Boot option is gone. I can boot to Windows via BIOS but my Touchscreen is simply not responding in Windows anymore. Is there a way to get the Dual Boot option back without having to go to BIOS first? And anyone with an idea of how to repair my windows touch? :(
[Device Reviews and Information] gufte:
You got a PM :) WOuld be glad if you could help me.
[Device Reviews and Information] Deen0X:
Hi!

i updated the Teclast X89 installation guide, and included a mirror for download files and add some other stuff (Battery bug fix, etc.)

Teclast X89 (E7ED) Files (Mirror)

hope you found useful.

Zalu2!
[Device Reviews and Information] Neo Polonais:
My firefox is always crashing when i try to go to your web site
[Device Reviews and Information] Deen0X:
may be some plugin?

i never heard about firefox crash when opening my blog. (anyway, i use chrome)
[Device Reviews and Information] Neo Polonais:
maybe, i pimped it a lot, but your blog is the only site doing this, never had that crash before [even your homepage]

anyway, i just wanted to share about 1_Toolbox.cmd file and the flash bios option. I recommend to never use that option for flashing bios, instead flash bios straight from the tab [windows]. Like i said i used the X98 dual bios file from there and it worked like a charm
[Device Reviews and Information] suitengu:
Finaly i have received my usb hub with the 3 way switch : http://fr.aliexpress.com/item/Scolo...-Computer/32312012852.html?recommendVersion=1

With the type of hub we can charge and have the otg function. These are the functions :

-1 OTG without charging (to use otg without charger in fact)

-2 OTG with charging

-3 Charging without otg

All work ok with the X89.
[Device Reviews and Information] agunghost:
Review

Is it working as advertised?

Please, give us your review using this OTG.
[Device Reviews and Information] Neo Polonais:
I have the same

The usb output is a little to long so there is a little space between the black part and the tab, otherwise it works as expected (windows and android).

Useful if you want to reinstall windows (2 usb sticks)
[Device Reviews and Information] Shrelf:
I am getting the "throtteling brightness due to thermal event" message frequently in Android when running processing intensive apps, even more often when i'm also charging the device.

I figure this is due to the CPU or other components not being cooled sufficiently.

I was wondering if it may be possible to open the tablet and put some kind of better cooling on the CPU, maybe transferring the heat to the case more efficiently.

I tried to open the tablet today but didn't want to break anything so I stopped.

Couldn't find a guide for opening it in a safe way, just for the x98, which seems to come apart much more easily.

Has anybody disassembled the tablet or knows how to do it without breaking it?;)

If anybody has a solution for the brightness-throttelilng I would of course also be thankful.

cheers
[Device Reviews and Information] ibfragalot:
Is this tablet still a buy?

I've done a LOT of research and I think this is the best. Here's my Top 3 (Retina, prefer smaller)

1. Teclast X89

2. Teclast X98 Air II

3. Teclast X90HD

4. Cube i6
[Device Reviews and Information] yeahman45:
does it heat up?

I have a chuwi vi8 and it gets warm in matter of mins of light use... which is annoying.
[Device Reviews and Information] Shrelf:
it does heat up a little, but the problem is not it being warm in your hands but the screen being dimmed, which is especially bad outdoors.

I found a kind-of-solution to that : http://xdaforums.com/showpost.php?p=58659639&postcount=6151

As long as you don't put the values too high it shoukd be fine.

I have another Problem though: I have two x89s, rooted the first one and replaced the systemui files to fix the 100% battery bug as in [MENTION=3410188]Deen0X[/MENTION]'s guide. It works fine ever since.

Today I tried the same with the second one, but I forgot to set the correct permissions before I copied the files. I was supposed to set them to rw- r- r- , but now they are set to rwxrwx--

Now the top and bottom bar are missing, so i have no home/back/app switch buttons and no notifications ect. anymore.

I also seem to have lost root access, at least for writing. I can still see all directories but cannot change anything anymore, so I'm stuck with the broken system.

Root explorer says it is read only and when I hit "mount r/w" it tells me that the device is not rooted. Also Kingoroot on my PC tells me that the device is not rooted and re-rooting fails.

Please help me on this, I have no Idea how to fix this!!

Is it really possible that I screwed the whole system by not setting the permissions right?

Thanks!

Edit: managed to set the right permissions via adb, now it works fine
[Device Reviews and Information] Riona69:
My quick take after using this for a few days (asked a friend in China to buy online for me):

1) Rooted and applied the battery fix... however fix doesn't seem to work and had to unplug the power for a few minutes before I can use.

2) Wifi is weaker than my Note 4 & iPad Mini 1, some APs can't be detected which is frustrating, and sometimes constant dropping of signal!

3) Battery life seems ok but I didn't really monitor this.

4) Screen display is ok but colors seems flat (compared to Note 4 and iPad Mini 1).

A funny thing though.... At the back it says 32GB but in Android only shows:

Total space 7.75GB, ROM Internal Storage 2.0GB, Internal ROM 10.0GB.

Can someone help explain?

For the price I think it is an acceptable alternative to branded tablets although one has to put up with some bugs/quirks. BTW the flip case I bought for it doesn't fit so it feels kinda naked compared to my iPad Mini 1.
[Device Reviews and Information] ibfragalot:
A funny thing though.... At the back it says 32GB but in Android only shows:

Total space 7.75GB, ROM Internal Storage 2.0GB, Internal ROM 10.0GB.

Can someone help explain?

This comes up a lot. So it has 32GB total, but remember this is split between two OS's. Windows and Android. Each will get a portion. So it looks like Android has got 10GB, and of that you have 7.75GB remaining. The rest is allocated to Windows (Makes sense, its much larger). The 2.0GB is the RAM (Used for fast and temporary storage by Applications while running.)

Interesting about 'battery fix' - what is the problem there?
[Device Reviews and Information] leoste:
II received the tablet, tested it and it was working fine until I decided to update windows using windows update. Fist it didn't want to restart and now it one hour to restart windows. I wanted to change the admin account to the one I use with all my pcs and everything is in in chinese How can I change the display language to english or spanish?
[Device Reviews and Information] Stevethegreat:
Try this method: http://xdaforums.com/xposed/modules/tool-installer-xposed-installer-zenfones-t2983589

It worked for me.
[Device Reviews and Information] natna:
I also have the 100% charging in android problem + something completely new.

After charging in android and crushing, the screen gets "stripy".

All the colours are ok tested with a screen tester app, but greyscale has wash up degradation and lighter coloured stripes.

It came after the first charge crush and it took almost a day to get back to normal.

Nope, that's no "moire effect" from the camera. It is a problem!!!

It is created in android charging and it doesn't leave with a simple restart. It is also present on windows.

Until the screen self heal :D after a few hours.

When charging in windows there is no problem.

Every time I got a charge crush in android I got the same problem in a different level. The first time was the worst one.

Of course I loved the performance of this little devil, especially in win8.1, but I hate this problem.

Such a poor quality check...

The fact that when it happens it's present on both OS, tells me it's a hardware problem.

It seems to me, as if the crappy android rom, wants to destroy the hardware :D

Of course I don't want to wait 3 months for a return or fix from fastcardtec or Teclast!!! (since DOA is not the case, since I used it / installed apps etc)

I don't know what to do.
[Device Reviews and Information] XDAPORTER:
optical bonding

Does anyone know if the digitizer is optically bonded to the lcd screen in the x89 ? I want to use in my car, but sun light will wash out the picture if the tablet is not optically bonded.
[Device Reviews and Information] suitengu:
The digitizer is not optically bonded on this tab.
[Device Reviews and Information] ntemis21:
is there any cm rom for this?
[Device Reviews and Information] sJaguar:
Teclast x89 (E7ED) Brick ...

Hi

I have this tablet but is is bricked ....

now when plug with usb to pc, pc not find anything ..

when power on tablet . not see anything . only after minutes cpu is heating ...

it is possible any way for fix it?!
[Device Reviews and Information] xerics65:
USB drive not detected

Hi guys, i had this issue with my x89 when i plugged in a flash drive via OTG cable, it shows USB storage removed instead of detecting the flash drive. It cannot be mounted and cannot detected in any file browser. Anyone help pls? thanks alot.
[Device Reviews and Information] guvno:
Would you buy a x89?

Hi all happy (and unhappy) X89 owners.

I am thinking of buying 2 X89 units for my kids. The smaller size makes them perfect in my opinion and the fact the the screen seems as good as on a X98 (which I currently have) seems great.

Reading this whole post however worries me that these X89 units come with quite a few issues, some HW related. Does anyone have any updated info?

Also, one of the really nice things about the X98 is the great ROM support out there. I am running a custom lolli ROM on my X98 and I love it. Are there any good custom ROMs for the X89 out there, perhaps with all the bloatware removed etc ? Would you recommend the X89... Or does anyone know if Teclast are now planning on releasing a X89 'Pro' (Cherry trail) platform ?

Thanks for any feedback
[Device Reviews and Information] suitengu:
The situation is unchanged. No firmware update and no passionate like mirek for the X89.

Nethertheless this tab is realy great for 150€ until the 100% battery bug is fixed.

The hardware is almost the same as the X98 air 2 (and the mainboard is exactly the same). I think only minor changements are needed to adapt mirek's work for the X89.

edit: It's in fact an X98 "HGxN" with a smaller screen. I think roms for these tabs should work ok :

HG6M – Android (32G)

HG7N – Dual (32G)

HG8N – Dual (32G)

HG9N – Android (32G)
[Device Reviews and Information] guvno:
Thanks for replying. Yes. The X89 would really benefit from someone like Mirek... I suppose as the HW is similar to X98 it might not be too much work to port his ROM... Still as the chipset is one step down from the X89 there will be differences... Screen is the same (resolution, but smaller in size) but digitizer might be different as it is smaller.

I find it sad that Teclast has (apparently) dropped their support for the X89... At least for the X98 they did release 2 or 3 further ROMs
[Device Reviews and Information] ruicaio:
New firmware

Someone already tested this new version?

h++p://blog.geekbuying.com/index.php/2015/09/02/teclast-x89-dual-boot-e7ed-win8-1-android4-4-newest-firmware_183669-released-20150902/

I can not find the changelog.
[Device Reviews and Information] guvno:
Same question as ruicaio above. Anyone tried this new release? Does it address any of the issues found on the X89 like the "charging problem" ?
[Device Reviews and Information] aitnog:
it seems to be the original teclast release - nothing new - android 4.4.4 v1.06 and windows 8.1 . the filenames have no chinese signs and there is a howto in english.

btw lewa os 5 for the x89 seems to have no battery bug and looks quite nice, but no gapps include - but can be side loaded
[Device Reviews and Information] guvno:
Custom ROM for X89

So is there a custom ROM for the X89 somewhere? Lewa OS 5? Where can I find it?
[Device Reviews and Information] aitnog:
there are 3 custom roms i know about.

lewo os 5 http://bbs.lewaos.com/thread-271623-1-1.html chinese and english

remixos http://bbs.teclast.com/thread-512508-1-1.html

teclast os 1.01 http://bbs.teclast.com/forum.php?mod=viewthread&tid=391638&highlight=x89

i could not test the remix rom yet, my bios got damaged and i am waiting for the flash tool
[Device Reviews and Information] Logseman:
After installing Windows 10 from the Media Creation tool (occupying all the available space) it seems that i can't access the DnX Fastboot mode. I can turn the tablet on with the combination and the DnX notice will show up, but it will appear only for a couple of seconds before it loads Windows again.

Is there any way for me to install the Android bios so it allows me to flash the Android OS in the tablet?
[Device Reviews and Information] aitnog:
long and dangerous way:

1. boot the tablet to windows

2. flash the android bios - you will loose dual boot

3. enter DNX-Mode

4. flash android rom with intel mft

5. boot to android

6. flash dual boot bios with ifwi.apk

check http://bbs.teclast.com/thread-389148-1-1.html (google translate is your friend ;) )

if you only want to flash the android partition it's easier to use fastboot, no bios flashing needed
[Device Reviews and Information] Logseman:
I've learnt a lot since I wrote that message.

First of all, one can flash the Android bios simply by plugging in a USB stick with the BIOS files and booting in the EFI shell. This fires up the "startup.nsh" script that updates the BIOS.

Once I updated the BIOS and reached the DNX mode I managed to flash Android. However, with the files in Deen0x's tutorial you only get 10 GB for yourself, which is a waste if you don't want Windows. Therefore I also modified the partition table in order to leave no space for Windows and have the whole tablet's space for Android, with 25 GB in /data.

I'm eyeing the custom roms, but I'd greatly prefer to wait until Lollipop is available for our tablet. Are there any Z3735F models with Lollipop?
[Device Reviews and Information] Logseman:
Well, I won't need to wait for Lollipop anymore. I was tinkering with the settings in order to reduce the tablet's per consumption and it doesn't turn on now. I've bricked it.

I imagine a BIOS reset would cure the issue, but I have opened the tablet and I see no jumper or battery, and from what I've read in other forums for TV sticks and other form factors the BIOS in these Z3735 thingies is unassailable hardware wise.

Maybe a BIOS programmer could help, but I don't know which one would be good, the cost it would have, or if it would work at all.

Let my tale be cautionary for you all. If you change the BIOS settings you risk a brick.
[Device Reviews and Information] aitnog:
welcome to the club of people who bricked their tablet by killing the bios ;)

it's german but google translate will help you: http://www.android-hilfe.de/thema/teclast-tablet-unbrick-anleitung.664569/

when applying the clamp you have to be extremly careful to not rip of some of the small smd parts - I was not careful and bricked my tablet completely :( ... but ordered a new one.

lollipop is available for the x98 (mirek's rom) - i tried it and it boots but the touchscreen is not working properly and bios 2.02 from the x98 Ait II seems to be needed.
[Device Reviews and Information] guvno:
Too bad...

I still think the X89 is one of the best 7.9" tablets out there... Too bad Mireks ROM does not work on this HW... Apparently Mireks ROM does work for the X98 Air III which is also running on a Z3735 SoC and since the X89 is using the same resolution it seems most of the HW would be the same but obviously as the screen is smaller the digitizer will be different and this is perhaps why the touch screen is not working properly... Perhaps a quick PM to Mirek asking him to rebuild his ROM with the right support for the X89 digitizer would be a good idea?
[Device Reviews and Information] suitengu:
I asked him how to do. We need a custom kernel (the boot.img in the rom package). In fact we only need to exchange the touch screen driver in mirek's kernel.

I don't have time and knowledge, but it should be quite easy to adapt his rom.
[Device Reviews and Information] Gede:
Is it possible to make the X89 Windows only without too much bricking danger? I don't use the Android part, and would like the extra space for Windows....

Thanks....
[Device Reviews and Information] Gede:
Another question, I had a winrar install program on the desktop.

I installed it, but its in Chinese. It has the same icon as that Android program, the colored M.

It installs itself in C:\Program files\MicroVirt\Dualboot and has files activate, afuwin.exe, amfldrdrv32.sys extfs.sys, MicroVirt.exe, MicroVirtAT.exe.

It starts at startup in the tray, and has options, in chinese...

Does anyone know?
[Device Reviews and Information] Gede:
Ok. I set the boot option to Windows bootloader. Then, deleted all raw (android) partitions with the Windows disk manager. Merged the free space with the system drive (C:)

Android gone, 24gb free on C:

?
[Device Reviews and Information] mklmkl:
[MENTION=4332352]guvno[/MENTION],suitengu: I was able to install at least mirek190's X98 KitKat Rom.

Procedure is quite simple - download mirek190's KitKat Rom and replace 'boot.img' with the 'boot.img' file from the X89 stock Rom. Works for me without flaws.
[Device Reviews and Information] Laus_bub:
[MENTION=5762863]mklmkl[/MENTION]

Hi, I also tried to flash mireks Rom (its version 7 now). I installed both drivers he mentioned and afterwards set the tablet in the DnX mode. I started his batch file and selected "1" and I've connected the Tablet after the message in the DOS Box, "waiting for device". The tablet seemed to be recognized correctly and restarted. But then nothing happended at PC side.

Problem might be that I 've the operating system selection enabled - since the tablet restarted to android. So I set the tablet again in DnX mode. Connected it and the still running dos box recognised it again and tried to flash mireks android version. But it didn't work. In every step of the running script appeared an error message "failed to write". So the script compleated without writing something.

I think it might be a problem with the operating system selection or the fact that my tablet is rooted ...

Anyone any suggestions?

I tried this with windows 10 and also windows 7 - same result. Tablet always restarts after first connection and then connection didn't work, even after manual restart in DnX mode ...

Thanks for help and suggestions!
[Device Reviews and Information] mklmkl:
In case you are already in DnX-Mode you have to boot to "droidboot" manually or extend the ".bat" file (confer with the ".bat" file delivered by mirek with his Lollipop ROM v7.0).

If you are in the ROM directory "fastboot.exe" should be in the "data" subfolder. Necessary commands (before starting the ".bat" file) are:

data\fastboot.exe flash osloader ROM/efilinux-userdebug.efi

data\fastboot.exe boot ROM/droidboot.img

Good Luck!
[Device Reviews and Information] Laus_bub:
[MENTION=5762863]mklmkl[/MENTION]

thanks for help!

As far as I understood I have to do the following steps:

Tablet in DnX Mode, connect to PC, run DOS Commands

data\fastboot.exe flash osloader ROM/efilinux-userdebug.efi

data\fastboot.exe boot ROM/droidboot.img

correct?

Then start the bat file?

Thanks!
[Device Reviews and Information] mklmkl:
Exactly!
[Device Reviews and Information] Laus_bub:
[MENTION=5762863]mklmkl[/MENTION]

ok, I tried these steps but it didn't work.

I entered the first command and it worked. Second command with droidboot.img and it worked also but the tablet restarted.

I reenabled DnX Mode and started afterwards the .bat file.

Problem is I start option 1 clean install and the tablet reboots again. When I reconnect in DnX mode the bat process is showing "waiting for device".

When connected the batch file starts.

Unfortunately it shows "failed. remote unknown command". And this happens to all steps of the script following.

Any ideas?

did you try the version 6 and have the os selection enabled?

Problem might be the reboot, but iam not sure ...

Thanks again for help!
[Device Reviews and Information] mklmkl:
Sorry, I'm currently out in Norway for skiing :) without access to my laptop.

Can you try the following - take the '.bat' file from mirek190's Lollipop 7.0 Rom and use it for the installation of the KK Rom. You only have to make sure that the files that should be flashed are in the correct locations (or alternatively adapt the '.bat' file). Then the starting point is definitely the DNX mode.
[Device Reviews and Information] Laus_bub:
[MENTION=5762863]mklmkl[/MENTION]

I tried several times, but it didn't work. Always the same problem. Aber I start the bat file the device starts rebooting after the bat file execudes the first codes ...

Anyone else tried and the same problem?
[Device Reviews and Information] pogodancer:
A few questions for making the E7ED x89 new:

1. Which is the best dual-bios and where to get it ?

2. Is there a partition.tbl for 8GB or maximum 10GB for Android only and the remaining space for Windows ?

3. The stock boot.img is the only file to be exchanged in mirek's rom for the X98 Air 3G ?

4. Are there working installation files for Win10 ? Or aren't drivers available for x89 ?

Thanks.
[Device Reviews and Information] aitnog:
to 1. Stock BIOS has dual boot. Taking the BIOS from another tablet could cause side effects.

to 2. mireks rom includes various partition tables

to 3. boot.img includes the kernel and drivers and must be taken from the original x89 teclast android. Only mireks Kitkat rom works with this boot.img

to 4. you can install windows 10 using a usb-hub, keyboard an windows 10 usb-image. most hardware works, but a lot of drivers have to be installed manualy and can be taken from air 3g etc
[Device Reviews and Information] rfiore:
Hi did you solved it?

Can you install an Adroid Lollipop version or maybe a Miui version on this Teclast? I want an Android experience...windows isn't good for only finger use.

Thanks a lot
[Device Reviews and Information] suitengu:
I've done this, just replacing boot.img and flash using option 1 of mirek script. It do not work, it have screwed my droidboot partition.

Using bios i can still boot windows. Other boot options get me to "efi shell".

Power + vol- do nothing (for sure droidboot broken). Power + vol- + vol+ get me briefly on DnX mode but not enough time to let use intel manufacturing tool because boot carry on efi shell.

Have you any idea how to fix this ? Surely a commend in efishell.

edit : some news, i found an other bios for the X89 i now manage to enter in dnx mode. I think i can unscrew this tab with intel manufacturing tool. After that i will reinject my the original bios.

Next i will try to only flash system.img from mirek.
[Device Reviews and Information] rfiore:
All this stuff is ok also for x89 Kindow?

Is it the same hardware but different screen?

I think so..I want modding this android!
[Device Reviews and Information] rfcclub2011:
I have the same problem. Maybe fastboot partition is damaged. The only thing I see in Internet is droidboot.img is related to fastboot.

fastboot flash fastboot droidboot.img

I don't think we should mess with them, because it can make error happen. Maybe we can try flash ROM directly using fastboot, instead of reboot to fastboot using fastboot boot ramdisk like that.
[Device Reviews and Information] suitengu:
Mirek's rom is definitly incompatible with X89 dualboot bios. You can run it with X98 bios but you will have batterie drain on windows.

My tab is repair, all i needed is in Deen0X mega:

flash android bios --> Dnx mod ok

flash android 1.06 using flash.xml and intel manufacturing tool.

flash "windows bios" using adb debuging

Instal windows with winpe