[pamon]

Ok... have an 8700C that I need to upgrade the firmware on. It's an original 8700C via Cingular that I got unlocked and am using it on TMO. Running 4.2.1.66 on it now.

Question: Where would I go for the firmware update? TMO or Cingular? Since it's a branded Cingular phone yet unlocked do they have to provide the updated firmware or can i use the 8700G update on TMO?

Looked on TMO's site and for the 8700G they have 4.1.0.346?

I'm confused....

[NJBlackBerry]

You can use any firmware on the 8700. RIM writes it all; the carriers test and release it. Looks like T-Mobile never released 4.2 for the 8700. Lots and lots of issues with 4.2 on the 8700...

You can use an unlocked 8700 on T-Mobile.

[jeremyckitching]

Wirelessly posted (BlackBerry 8700g: BlackBerry8700/4.2.1 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/100)

You can actually find the latest version of the 4.2 OS as a sticky at the top of the 8700 forum. I am running it (4.2.1.101) right now.