TXCZ A20

This HTPC uses the same formfactor as the Langcent H6S but has a different board and therefor different settings.

= Identification = The board has "TXCZ_A20_V1.0" printed on it.

In android, under Settings->About Tablet, you will find:


 * Model Number: BBA22
 * Build Number: BBA22-UI4-V2.0.4

= Sunxi support =

Manual build

 * For building u-boot, use the "" target.
 * The .fex file can be found in sunxi-boards as

Everything else is the same as the manual build howto.

= Tips, Tricks, Caveats =

FEL mode
Due to a lack of USB device ports, FEL is not possible.

= Adding a serial port (voids warranty) =



Device disassembly
There are no screws, only clips. Just turn the device upside down and push your plastic tool between bottom and top cover.

Locating the UART
There is a 4 hole connector labeled J10, all you need to do is solder on some wires according to our UART howto.

= Pictures =

= Also known as =


 * Ninss Tech BBA22

= See also =


 * Langcent H6S: a highly similar device using the same formfactor.