w7ox wrote:
Installing 3.0.1 had no adverse effects here. So I don't think it's 3.0.1 so much as something which happened in the process of installing it for some users.
What I said also. As I'm a "charter" iPhone owner I've seen posts about problems after every upgrade, and invariably the people with problems attribute it to bugs in the software and want to downgrade to the previous version. Which doesn't usually fix it, because the problem is caused by something that went wrong in the upgrade process itself, and was not a flaw in the new software. Sometimes it does fix it, but that's because the downgrade process wipes the phone. Doing a clean install would accomplish the same thing.
For 3.0.1 especially there's no way it can be the software; all this update did was add a couple of lines of code to check for buffer length on incoming SMS messages (a guess, based on 40 years of programming experience).