Try Another Cable ?
Try Another Computer ? Prefer Win10
Garmin Drivers ? (Normally installed by express).
GarminCure 3 by Kunix Works (I think you used it before)
Maybe that device has a corrupt region 41 or a Hardware Fault. (Difficult to fix @ this Stage)
Try to put Maps on SD Card to make it Navigate.
Format SD to FAT 32 on another Device or Card Reader.(NOT NTFS)
I think you have the correct RGN File, Try an OLDER version. Sometimes it Wakes them up.
Try to PM Neil, Kunix, Catymag, Lolypop (they got Magic to fix difficult situations)
Also look @ this [Only registered and activated users can see links. ]
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