Xiaomi Mi Box 4k - SPMC (latest)- Backup Issues

Question

I don't know if this is the right subreddit for this question but here is goes.

I've setup my Xiaomi Mi box with SPMC. Now that it's the way I like it I would like to save it. I installed the Backup Addon and used three different USB sticks but it says "the media might not be rewriteable" I click ok and it tries to copy it to the USB stick but then at the end it says "not all files were copied".

Does anyone know what I can be doing wrong or why it's not working? I've plugged in the USB while the box has been on and off with the same result. I've also tried to us USBWizard and it doesn't even work.

NedSc · Accepted Answer

Android will automatically create a special folder on the USB drive for each app that tries to save something. There should be an SPMC folder in there that it has permissions to write to.

dzigg · Answer

USB sticks is read only on an android TV marshmallow, unless you set it as an internal storage. Another options is to root the device, although I'm not sure how to do it.