All source code to IO Client and example are available at


To update the Android system software on your OpenOTT board, go to Settings/System Update.


For recovery installation from the bootloader, you can also download system images from


To update using a recovery system image,


Place the .signed file on the root of a USB mass storage device (flash or HDD)

Rename it to MstarUpgrade.bin

Insert the USB device into your OpenOTT

While holding the standby button, power you board on/off

Keep holding the standby button, and you should see the software upgrade progress on the video output


Click here to download schematics.


Click here to download mechanical 3D files of min PCB and tuner print


Click here to download files for 3D print of box (with tuner)