[Teclast X98 Air 3G] StardustOne:
Yes I tried this method 2, but it does not work, it still crashes the play store as soon as I open it and Google+ also crashes.

The tablet from my colleague came with some kind of 4.4.2 and he did the teclast offered download to 4.4.4, unfortunately he must have tried when it was offered online and as it seems this has completely disrupted everything, some programs now are version 4.4.2 others are already 4.4.4, it is a real mess in that box.

I wonder what Teclast is up to because I wil not recommend this tablet to any other colleague, everyone I know would be better off with a Pipo or Samsung :(.

The Intel Android ADB driver seems to be the problem, it does not seem to work properly on my first computer I tried. On that system I had installed some Samsung ADB because someone in this forum recommended this, but this is a joke, it is not a Samsung phone, it is an intel device.

Instructions here in the forum are so ambiguous, sometimes I need to plug the tablet in, do something to power it on, then I need to check the Intel tool, then I need to power the tablet on, not very helpful and not very consistent.

I do not have a clue how this intel tool really works and how I can force it to do at least a clean update for this tablet, it simply does not work.

And to make this thing work, is it enough to just plug it in and let Windows 7 find the Intel ADB driver? It sometimes does not even do anyhting when I plug it in and if one USB port did give me a failed driver cannot find anything, do I then need to reboot and try again? Teclast is the worst, but it is most likely Intel's fault, they cannot write software that works.

Okay, I now see an Intel Android Phone entry in the device manager, so far so good (and it seems to find the device only if it is powered off and plugged in), but this is my 2nd computer I use to try to install a new firmware on that crippled device.

And ah finally it finds the device, and fails after 5%. Failure IWFI flash failure. This is crap..

Here is what the logfile found:

# Manufacturing Phone Flash Tool Logs generated on 2014-11-22T10:05:44

######################################

#### Flash tries 1 ####

#### Flash failure 1 ####

#### Flash success 0 ####

#### ####

#### Fail IFWI 1 ####

#### Fail ENUM 0 ####

#### Fail Modem 0 ####

#### Fail OS 0 ####

######################################

11/22/14 10:03:20.404 INFO : Manufacturing Flash Tool V 6.0.43 (build on Sun May 18 12:29:29 PDT 2014)

11/22/14 10:03:20.414 INFO : Loading settings from C:/ProgramData/INTEL/Manufacturing Flash Tool.ini

11/22/14 10:03:20.454 INFO : Using Qt version: 4.8.1

11/22/14 10:03:20.454 INFO : Using XFSTK version: 1.5.5.

11/22/14 10:03:20.464 WARNING: Please select a flash file...

11/22/14 10:03:29.837 INFO : do_new_medfield_device STARTING TO FLASH

11/22/14 10:04:35.682 INFO : Loading Flash file (D:/X98_Air_3G_(C6J6)/flash.xml)

11/22/14 10:04:35.683 INFO : GP_Flag is set to 0x80000045

11/22/14 10:04:35.693 INFO : Ready to flash!

11/22/14 10:04:46.091 INFO : do_new_medfield_device STARTING TO FLASH

11/22/14 10:04:46.091 INFO : Port 0/0/1 #0: IFW flash started - SN : Baytrail51953470

11/22/14 10:04:46.091 INFO : Disabling xFSTK wipe out ifwi option

11/22/14 10:04:46.091 INFO : Disabling xFSTK Misc DnX

11/22/14 10:04:54.376 INFO : Disabling xFSTK wipe out ifwi option

11/22/14 10:04:54.376 INFO : Disabling xFSTK Misc DnX

11/22/14 10:04:54.376 WARNING: Port 0/0/1 #0: Retry IFW Flashing - Serial: Baytrail51953470

11/22/14 10:05:03.582 INFO : Disabling xFSTK wipe out ifwi option

11/22/14 10:05:03.582 INFO : Disabling xFSTK Misc DnX

11/22/14 10:05:03.582 WARNING: Port 0/0/1 #0: Retry IFW Flashing - Serial: Baytrail51953470

11/22/14 10:05:12.786 ERROR : Port 0/0/1 #0: IFW flash failed - SN : Baytrail51953470