I upgraded but when i waited for it to load it just kept showing the hourglass thing and never loaded. so I tried wiping it with the jl cmder and it took me several tries to get it to connect and i finally got it to erase, but now my computer cant detect my phone at all for me to upload my old OS. When I turn my phone on it just shows 507 code. any ideas what i should?

Unplug your BB, delete the DM and the O.S. from your PC, through add remove programs. Restart your PC, re- install the DM, re-install the BB O.S. and go from there. I had this same problem last week.

I'm not having a problem yet with my phone not (knock on wood). I also want to upgrade to 8320AllLang_PBr4.5.0_rel75_PL2.7.0.66_A4.5.0.52.ex e, do I need to uninstall the previous 4.5 (46) beta version from my laptop first before installing 4.5.0.52?