Samsung SAGA issues
Call comes in, lights up the screen, but then phone doesn't ring (using a default ringer and have tried changing ringer) and if it does ring, the screen will be lit with the caller id info for a good 15 to 20 seconds before the ringer goes off.
Another issue, call comes in, I go to answer it using the button above the talk button whic...
(continues)
I would look for the old version on the web. People have been cooking their own ROMs (firmwares) on Windows phones since the beginning. It would take some digging, but I'm sure you're not the only one with this idea (given the problems my people have seen).
Wish I could point you in a better direction. Look for a ROM of the old software.