How can I get my new Z10 restored from my previous Z10's back-up file?

The problem I am running into is that the most vital portion of data I need moved over (contacts, messaging conversations, etc.) refuse to restore to my new device. The error message that I am receiving in Blackberry Link refers to unsupporting software. I realize that the problem is caused from differing software packages on the two phones. I've had to move from AT&T to Verizon, so my ATT supported phone has the 10.2.1.3014 software release while the Verizon supported phone has the 10.2.1.2976 software release. I've tried doing a device switch with the old phone plugged in and a device restore from a back-up file, neither of which has ended in success.
Since my AT&T service has been shut off, my phone appears to be unlocked (feel free to correct me if I am wrong). I'm wondering if my solution is to load the same Verizon supporting software package onto the old device and then reattempt the device switch/device restore. Please let me know if this is a viable solution, and if so, how can I accomplish this?

Get Darcy tool and rename the back up files to the same os number then you should be able to back up,.
http://forums.crackberry.com/bb10-le...-tools-956835/
Here is the link.