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I wanted to reinstall my System on my Garmin Zumo 390LM. Fot that I downloaded the gcd-File from http://www.gawisp.com/perry/. I exactly downloaded the zumo3x0_GCDFile_420.gcd. It should be the actual firmware-version 4.20 of the Garmin Zumo 3x0. I placed it in the Garmin-Folder on the Zumo 390LM and renamed the file gupdate.gcd. Now you should just reboot it and it should start flashing. My zumo starts normal and not in flashing-mode.
Does anybody has experience with this? I think I have to enable anywhere the flashing-mode, but I do not know where.
Since two month the system of the Zumo is instable. I already made a factory reset. But it did not help. Now I wanted to give it a try to reinstall the system.
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