Thank you guys for putting in so much time and energy and giving us such a great experience!

I installed UT a few times now (mostly from my Macbook OS Moyave) to my Nexus 7 2013 and it works like a dream.
Really good piece of software, easy to use and clear menus+instructions.

I wish, other ROMs were flashable so easy, hehehe

Awesome job on this one - keep UT going strong! A simple, working, easy to use installer is an important step to spread out UT to the masses.

Well done!

Cheers

@SnowyMtnWeb Hi, I was able to re-install Android OS (more specific: LinageOS with nano Gapps)

The thing was (I assume) the difference in "bootloader".
I had to flash TWRP onto my Nexus first, so that ubuntu "recovery" gets overwritten (sorry, don´t know how to explain)

After that, I was able to install Android ROMs again. Before, I did not flash TWRP recovery on my nexus and I think this caused my attempts of re-fitting Stock ROM to fail! (not 100% sure, but possible)