Thread: nuvi 2589 acting strangely after GarminExpress Update

Originally Posted by Butters

Regardless, you shouldn't need to access preboot, is there a reason you wanted to do so?

Oh, do you mean after formatting it with RMPrepUSB, I can go straight to Garmin Express to reload all software and maps? I was just following the "How to unbrick step by step" instruction #3 to "Flash ORIGINAL firmware into the unit, using GarminCure3 and Updater.exe." I made .rgn file using the original nuvi25x9C4_880.gcd file downloaded, copied it to the same folder as the Updater.exe files, then double clicked to launch updater and trying to put device into preboot so that I can flash the .rgn to the device. But since I have trouble to put it into preboot mode, the Updater's USB Device field never get a chance to recognize the connected device (although my pc and Garmin Express seems still picking it up as Mass Storage), therefore can't go any further. (See screen attached)

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But if you are saying I don't need preboot, I assume I don't have to use GarminCure3/Updater to flash the device with the .rgn file anymore, and can go directly to Garmin Express to update software and maps? Would you please confirm that's ok? Since the instruction has this step I just want to make sure I can go directly to Garmin after formatting. I I now got 12 items in Garmin Express to be loaded instead of 9 like before. Please advise. Thanks a lot for your help.