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Getting preboot back increases the options now so there still might be a solution. Try to flash the lowest available version of 6xx firmware named OUT.RGN.V2.30V2.60 is the lowest I can find:
To find the GCD, extract [don't run] the EXE and look in Nuvi folder for Garmin folder containing GUPDATE.GCD then convert with RGN_Tool to out.rgn. If you fail let me know the error message Updater displays.Code:Please Login or Register to see the links
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13th September 2018, 10:26 PM #17Important User
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Last edited by Butters; 13th September 2018 at 10:32 PM. Reason: Correct typo in version number.
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