Thread: Dakota 20 firmware study

I'have used the sd method for reading the region in GPS. I've the following RGN number in GPS: 5, 14, 15, 16, 34, 41, 43, 45, 86.
I've used rrgn with rgn number from 0 to 149. In the following i report only the commands that results with an error.
Dakota 20 Software Version 5.80, UID: , HWID:
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Parsing "rrgn,3,1:/Garmin/Updater/3.bin"
Error
Parsing "rrgn,10,1:/Garmin/Updater/10.bin"
Error
Parsing "rrgn,17,1:/Garmin/Updater/17.bin"
Error
Parsing "rrgn,19,1:/Garmin/Updater/19.bin"
Error
Parsing "rrgn,21,1:/Garmin/Updater/21.bin"
Error
Parsing "rrgn,44,1:/Garmin/Updater/44.bin"
Error
Parsing "rrgn,46,1:/Garmin/Updater/46.bin"
Error
Parsing "rrgn,48,1:/Garmin/Updater/48.bin"
Error
Parsing "rrgn,49,1:/Garmin/Updater/49.bin"
Error
Parsing "rrgn,50,1:/Garmin/Updater/50.bin"
Error
Parsing "rrgn,51,1:/Garmin/Updater/51.bin"
Error
Parsing "rrgn,74,1:/Garmin/Updater/74.bin"
Error
Parsing "rrgn,75,1:/Garmin/Updater/75.bin"
Error
Parsing "rrgn,76,1:/Garmin/Updater/76.bin"
Error
Parsing "rrgn,77,1:/Garmin/Updater/77.bin"
Error
Parsing "rrgn,93,1:/Garmin/Updater/93.bin"
Error
Parsing "rrgn,131,1:/Garmin/Updater/131.bin"
Error
Parsing "rrgn,15,1:/Garmin/Updater/15.bin"
Error
Parsing "reboot"
Error
Error: Failed to write last ID out to device
When gps ends the commands, don't reboot and don't write the file 'last_id.bin' that disable another update execution, and the gps enter in a loop with the loader/updater.
Solved without extracting the sd by forcing the gps to enter usb mode by very long pressing (>30 s) the power button, as works with Datota 20.
Have to observe that the rgn 15 was extracted, but with a rrgn error, and i don't know if are a good extracted file.
Now some questions.

Code:

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