MX2 recovery problem I'm hoping someone can help me with the problem I have.
I have a MX2 Android TV Box and flashed it with Matricom firmware, running 4.2.2. When I try to access the SD card in recovery mode it doesn't allow me to do this -
Apply from EXT,  update from SD card, then it's blank. I've formatted several times and confirmed the files are there but they don't show in recovery.
When I open Winzip/File manager on the box I can see my files there. 
I want to flash the box again but can't from SD because the files won't show.
I'm not sure what to do with 'Update from ADB', (is this an option)?.

I don't have a lot of knowledge with these things but want to learn if someone can help me.
Thanks
Sideloading (usually seen as apply update from ADB) is a form of adb push wherein the ZIP file, say ROM.zip, will automatically get flashed by the recovery once ADB finishes copying it to the phone. The command you use on the PC is

adb sideload &lt;file.zip&gt;

Chances are if you're using a stock recovery (see if it says 3e at the top of the recovery screen), only official ZIPs from the manufacturer will get through verification; whereas third-party ZIPs will stall at Installation aborted.

But if you're using CWM (or another custom recovery), you can pretty much sideload anything you want.