So it took me way too long to figure it out, and I had the tablet lying around. The tablet is a SM-T550, make sure to install Heimdall's GUI and get the certain file, and then the instructions are really straight forward. Sorry if the instructions aren't super clear, I did do it a while ago and I remember lk2nd was a pain to install. The wiki stuff: https://wiki.postmarketos.org/wiki/Samsung_Galaxy_Tab_A_9.7_2015_(samsung-gt510) Edit: realized you asked about functionality. Stock home buttons don't work on any of the DEs I've tried, the screen sometimes has a little freakout so don't use it if you're epileptic, the battery percentage sometimes works, and it's slow (depending on your tasks) but usable. It can play a YouTube video in 480p without too many issues. It is a good option if you have only $50 and want to run PMOS on a tablet.