A few months back I purchased 6 encryption 0105956V67 boards from a user here on Batlabs for installation in my XTS3000's
The local M shop have just rung me to advise that 3 of the boards have firmware v3.53 and 1 has v3.51 and 2 had v3.55
The v3.55's are working fine, the lower firmwares won't talk to the KVL3000 (DES XL/DES OFB algos)
The XTS3k's all have the same firmware and host and flash. I have been assured by the user here that he had used them all as per this quote "I've keyloaded all of those boards with a T3011DX KVL, so I know that works."
I have asked the person I purchased these from and he has limited knowledge (but more than me

Any clues on getting firmware upgrades or other workarounds as the M shop has put it back to me.

Thanks in advance
Mike