Wedo HD22

The WeDoInnov HD22 also knows as EU3000 TV BOX, can be bought from different sources.

= Identification = The device does not have any identification on the housing itself. It is shipped with Android (4.2.2).


 * Model Number: TV BOX
 * Build Number: HD22_4.2.2_V2.0_20140422

= Sunxi support = It is supported but not 100%.

Current status
Basic functionality works well including the RTL8188 Wifi (after manual editing the FEX file) with the EU3000 configuration. However the Camera does not work, currently there is no driver for it.

Images
Factory image can be downloaded from manufacturers support page

Pre-built images for other boards might work, but not tested!

HW-Pack
Generating a HW pack for the HD22 is easily done.

BSP

 * The U-Boot knows the HW as eu3000 (.fex)
 * kernel works with the "sun7i_defconfig"

Manual build

 * For building u-boot, use the "eu3000" target.
 * The .fex file can be found in sunxi-boards as eu3000.fex

Everything else is the same as the manual build howto.

= Tips, Tricks, Caveats = The system came with half rooted. Some software detected as a rooted device but could not perform some actions. It is however easy to root by apps on the play store.

Some of the early models have OmniVision OV5640 camera. Be careful they probably not manufactured with t anymore, even if Alibaba advertise like that!

Boot log can be found here:

To run linux you do not have to wipe the stock OS sitting in the NAND. If you build the Linux and prepare a bootable uSD card, it will work and boot up into the SD card's system first. If anytime you need the stock Android, just unplug the uSD card.

FEL mode
This is not checked yet, but the PCB has an extra switch on it not externally accessible, might worth a try.

Device disassembly
It is easily done, it is hold together three small screws and some plastic pegs. The PCB held in place by two screws.

Locating the UART
The RX/TX pads just located close to the A20 processor as shows on the image. The pads are tiny, be careful when soldering to it! The GND can be taken almost from anywhere (metal parts of some of the connectors, or the test pad next to the RX pad, but it is not easy to solder!

= Pictures =

= Also known as =

EU3000 TV BOX

= See also =