Teclast X98 Air II Intel Bay use Trail-T Z3736F Quad Core at 2.16 GHz it got 9.7 Inch IPS screen with a resolution of 2048*1536, 2GB of ram and 32GB of internal storage. With no surprise it catch the attention of many with a price around 200 euros.
You can find the tablet in different versions, the main difference it’s about been the tablet dual boot or not but you can find also other variants which seems to have minor hardware differences and different bios.
In this scenario you can understand how easy can be to brick your device just flashing the wrong bios version, turning this nice toy in a piece of junk. But before you buy a new one you should try to recover your device with this easy guide.
This procedure can be also used to unbrick many other devices such as IPcam and routers, most of them uses in fact the same eeprom series, 25XX or 24XX series to be precised.
It’s easy to understand which eeprom we got, in this case, for instance we got a a 25xx series:
This is important to connect the programmer correctly.
What we need:
1) A Teclast X98 Air II or similar, of course
2) The Bios for you tablet version
3) A CH341A 24/25 series EEPROM Flash USB Programmer
4) A SOIC8 IC Test Clips Socket Adpter
You can find a kit at this address:
I would strongly recommend to buy this kit as has already been tested but any programmer should be just fine.
Please we aware that this procedure has been tested in Windows 7 only, it’s essential that you use the right software / driver combination, most of time when you use the wrong driver the software seems to be unreliable.
1) Install the software that you can download from here:
password is supercowz
you can also try a Linux version available here:
2) Download the Bios from here:
3) Connect the clip on the chip:
Be careful about the clip orientation, it must follow the dot on the chip!
4) Connect the USB cable
5) If the cable has been connected in the right way you should see Device State: Connected on the bottom right side
6) Load the Bios on the software
7) press Erase
8) press program
When you power on the bios the first time, depending if you are flashing a different platform bios (for instance you had an android tablet and you are flashing a bios for windows) it’s possible your tablet will boot up to UEFI, if does you tablet it’s fine, you just need to install the OS.