I have a Samsung Galaxy S3 mini, GT-8190.
The first symptom was that my phone reboots itself constantly. My phone is rooted. I have TWRP installed.
I tried to flash a stock rom with Odin, it seemed to go well, but when the phone rebooted it was the same as before. I tried wiping the data with TWRP but when it reboots, everything is there again. I tried uninstalling the apps manually, but when I reboot the phone, they appear again. It's like I can't change anything in the internal memory. I can't do a factory reset, it reboots exactly the same as before.
It is like the internal memory is completely frozen. If I uninstall a program, it reappears on reboot, If I install an app, it disappears, If I turn off the wifi, it appears ON when reboot...
I'm going crazy with this, please ask me if you need any more information.