If for say, a problem occurs while install this, worse comes to worse all I would have to do is reinstal 4.5 right?

Or can it completely screw my phone up?

Yes. Make sure you backup first.

Thanks!

After downloading the file....how do I install it?

Anybody getting the "This application is not compatible with your device and cannot be loaded" error message?

i gotta go back to an earlier version, vz navigator isnt working anymore. i have found the music home, but it wasnt until iafter i tried my bluetooth stereo headphones and hit play/pause on them, i then found the media player since it was running.

I've tried everything......The dumb thing just wont work....I erased the vendor...I tried the app loader...This thing sucks.......

i installed last night, first thing i noticed was the cool new alarm clock, and the MUCH needed picture viewer enhancement, you can now view the next image by scrolling left or right. the browser also has enhancements. but i think the BEST enhancement is THREADED SMS. yes finally. ok now for the bad. Blackberry App world can not connect. and the buzzkill that makes no sense to me, i no longer have the default OEM blackberry music player. this was very upsetting as i didnt find out until i was on the road, blackberry hooked to aux jack in my truck and i couldnt find the player to play my music.. also the new OS takes up WAY too much resources, the phone is very laggy now.

Make sure you guys delete the vendor code, if your having trouble uploading

The app loader will not allow it to download?

Why wont it load.........This thing sucks......I tried using the desktop manager....and nothing works...

it wont let me either? do you have sprint?

They have the instructions above... you use the apploader, not the desktop manager....
http://blackberryrocks.com/how-to-upgrade-black...

Look is not much different. Drop down menus now appear like they would in the newer BB's. However, it almost takes up too much space with the smaller resolution. Now has a file browser in it, which was definitely missing from the 8330 previously. PDF is still not natively supported, need to use your attachment service from the BES or a 3rd party app still.
Media has some visual modifications, the player is updated, you can now scroll side to side to view the next or previous picture.
Messages window now allows 2 line display, however, if you're using one of the "today" themes, that view messes up for "today" screen.

BBM v4.7 installs, it successfully downgraded my v5 install. The only options it gave when install OS v5 was to delete or downgrade. However, it has a lot of the same features as v5 did. I dont know if 4.7 was out with other models yet, but I'm fairly certain this is new to the 8330.

A welcome improvement!

ohhhhh... trying this out...
It's nice to be the IT manager and abuse powers to just pull another should I coaster a bb...

gosh man! 8830 gets no love lol :(

whose the first person with some cojones to try this one out? lol