Default [Q] can't flash roms or access internal memory or system

I attempted to flash the MOAR rom 8.0.0, and I first flashed the ML1 radio beforehand, then I reset like normal after flashing a new rom.

Waited 15 minutes at the Samsung Galaxy S3 logo and did a battery pull, second boot got me into the rom which then had a system UI error and reset, it was then perpetually stuck on the logo, no amount of waiting would get past it.

Then i attempted to restore my old rom from backup, but while going into TWRP this mysterious message appeared that never happened before:

Updating partition details...
E:error opening '/data/media/0/Android/obb'
E:error: I/O error
E:error opening '/data/media/0/Android/obb'
E:error: I/O error

I can't wipe anything as somehow everything on my phone has become read-only, and installing a new rom has no effect, even rooted ADB can't push files to the internal memory, any ideas on how to fix?

Update:
Nevermind, fixed the problem by using TWRP to do a complete format, phone now works fine, I didn't find anyone with the same problem as me using a search, so leaving this thread might be a good idea for future searches.