Originally Posted by John Clark
No, you don't need to wipe the device first.
However, I do recommend when jumping up in major OS upgrades (i.e. 5.x to 6.x) that you do not transfer 3rd party apps. I would uncheck them during the upgrade and then download and reinstall the correct versions for OS6. I would check with the developers of said applications to see if they support OS6. Many times the version they have available is different for the different OS's. If they don't offer a download specifically for OS6 then you can try the OS 5 version and see if it works. A little research beforehand goes a long way.
i very agree with that.last time i've tried to upgrade to os.6 from .os5, i've tried to take with me a version of DocsToGo, and i've ended not to be able to use it with the new .os6, cause it wasn't recognise that version.so i totally agree, doing a clean instal, much more than that you'll save a few mb.i would say my bb is working fine, like i said i've put it to charge last night, so i'll see how many days will last.