You will want to download this to your PC, from this link. First, choose the 8700c software in the drop down box.
Then, there are two choices, download the second choice, that has the specs as stated below.
https://www.blackberry.com/Downloads...E4F82F9F00E7D4
BlackBerry Handheld Software v4.1.0.529 (Multilanguage)
Package Version: 4.1.0.529
Consisting of:
* Applications: 4.1.0.377
* Software Platform: 2.0.0.152
* File name: 8700M_PBr4.1.0_rel529_PL2.0.0.152_A4.1.0.377_AT&T. exe
* File size: 47.23MB