Thank you for the response DD3Boh and for your hard work on development all these years. I'm trying to figure out where to find official ZUI 3.5 or 4.0 and I've become very confused at this point. Does it matter if I install an Indian or a Chinese version? Is QPST the same as QFIL? I get the impression that the ZUI roms I'm finding have been modded and perhaps they aren't what I should be flashing. I don't want to brick my phone during quarantine because it would be difficult to find another one right now so I want ensure I get this right. If you could provide a link to the proper files I should be using I would greatly appreciate it.
Edit: Also, is there any difference if I use 3.5 or 4.0 ? Is there any reason to prefer one over the other? Perhaps your testing has been done on one of them specifically and is less likely to have bugs?
ZUI 3.5 CN: https://androidfilehost.com/?fid=6006931924117892400
ZUI 4.0 CN: https://androidfilehost.com/?fid=6006931924117892419
No, 4.0 or 3.5 wouldn't make much difference.