So, I bought a PS Vita 1000 (the version without internal storage and with OLED) these days, a 16GB SD card and another with 4GB, and a SD2Vita adapter with a 128GB SD card.
The guy who sold me showed me that some archives and apps were corrupted, but since I somewhat know how to temper with modded consoles, I said it was fine.
I brought it home, and after noticing everything was pretty much corrupted to nothing useful, I deleted and reinstalled everything and installed some games. It was working at first, but the same problems came back (softblock screen where any input would be useless besides turning off forcefully, eternal loading screens for apps, any app, from settings to Vita Deployer).
I tried uninstalling VitaDB and installing the fixed version from GitHub, I tried fabric mode, rebuild data, QCMA.
Maybe the problem was in the internal partition made by the IMCUnlock? I tried using the vdep to fix it, but I was stuck on a loading screen and the console turned.
There's always something that stops me: using final h-encore? PSN can't connect to the Vita; restarting from fabric and formatting memory card and SD2Vita? Problem persists; taking off the memory card and the SD2Vita? Still happens. Any ideas? I'll try linking some videos that showcase some of the problems. ( videos are accelerated )