Please upload your file and I check it version. Version is in two byte before part-number (x1027-x1028 - HEX address and value too) for 006B121102.GCD and so 006B121100.GCD.
All files what I see on the Noeman and myself is equal absolutely...
In copy form 34xx a 006B121102.GCD have version 1.08 and I have such file copied from Nuvi 37xx (do not see any sense upload the same file). In this thread the version is 1.07!