I'm trying to do the OTA update of 2.3.340 and it's failing. I had previously unrooted 2.3.15 early on using a fairly manual method. I had frozen some apps using titanium. Prior to the running the OTA, I unfroze all of the frozen apps. Since I have a Titanium backup, it wouldn't be the worst thing if I have to blow it all up to get the OTA. Can I sbf back to a previous version and then get the OTA? What version do I go back to? Does 2.3.320 allow me to get the OTA? How do I do it?