What i have and what have happened:
1) Nuvi 3590LMT, SW 8.10, HWID 1258.
2) Device suddenly froze in navigation mode. After soft reset first stage of booting was normal but without "loading maps" and the screen became strange - many pixels with an inscription "not image found". Next resets (soft with holding power button) - same picture. But there are some clickable letters on screen - so i have made "clear all user data" - with no result globally.
3) PC (i tried different units with installed Garmin drivers) not sees device, updater.exe (nuvi in pre-boot mode) too - i can't use GarminCure3.
4) I have NV backup, so i tried to restore it - result - boot screen with "system software missing" and error in log file.
5) And checking of SD showed that it broken totally - RMPrepUSB can't recognize it, Windows can't format it.
But the device can still enter in pre-boot mode, so - experts, help me please if possible![]()
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