The MK802 $74 mini PC ships with Google Android 4.0. It also ships with root access enabled, which means it’s possible to delete important system files or make other changes that could leave you with a less-than-useful operating system.
The good news is that it’s possible to boot an alternate operating system such as Ubuntu Linux from a microSD card (although I’ve found that sometimes the MK802 doesn’t want to read the card).
But it’s also possible to re-install the original MK802 firmware.
If you have a 64-bit PC, you can also download the 64-bit version of LiveSuit.
Once you’ve done that, here’s how to use the tools to re-install the firmware (or install alternate firmware) using a Windows PC:
1. Unpack the MK802_recovery.rar file to a folder on your PC.