OK guys......a "Word to the wise" from someone who learned the hard way!
I just upgraded my iPhone 4 to v4.1 and considering that my company blocks iTunes and I have a 6GB Rogers data plan, I did it over tethering. Seemed like fun at first but then it turned out to be a BIG MISTAKE!!!
The download was OK, heck, even the upgrade was OK. However, when the first part finished, I BRICKED my phone. Apparently, after the initial upgrade, the iTunes has to talk to Apple for some more information. The phone simply showed a USB cable with a link to iTunes and although my phone was plugged into iTunes, it had no way of talking to it as this was a device with no OS on it.
After PANICKING and troubleshooting for about 5-10 minutes, I realized that this has to do with no Internet connection for iTunes. I had to run around between three places to find free WI-FI (God bless Starbucks) to get my phone to work.
A lesson learned for sure……DO NOT upgrade unless you have a constant Internet connection.
As far as the update is concerned…….. I have to say, the new OS is VERY responsive. The phone seems a lot faster at loading apps and I am actually able to type an entire sentence without misspelling words in vertical mode. In the past, I’ve always had to switch to horizontal mode to ensure the keys registered properly. This may or may not have anything to do with the update but I surely find it easier to type now.
Hope this helps!