The GMA file is pretty much impossible to crack, or generate a GMA code of our own due to the extremely sophisticated encryption algorithm.
Others had figured out how to get around the GMA file check, but I have no idea how it was done.
And Garmin has added another layer of protection to their most recent firmware/software versions.
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Thread: *.gma - What's inside?!
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10th April 2018, 02:17 PM #1VIP Master
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23rd February 2019, 05:13 AM #2Member +
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By disassembling a firmware, locating the routine that performs the check, and bypassing it.
Originally Posted by timp4411
It’s done by changing only four bytes, which is probably one or two instructions for a 16 bit processor.
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