Okay did as you said, flashed cure firmware (ver 5.50), Formatted with rmprepusb, loader basic folders from an slightly older device nuvi154lmt , flashed original (ver 5.50), device still powering off after 3 secs with computer and car charger. I may need files from your device. Which garmin do you have?, Appreciate your time. Thanks

Nuvi 3597LM Shutdown after Garmin Logo

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rabunz Reviewed by rabunz on . Nuvi 3597LM Shutdown after Garmin Logo Hello, I have a Nuvi 3597lm shutting down after Garmin logo is shown for 3 secs both with Car charger and Computer connection. Installing cure firmware (Ver 5.50) allows the device to stay on when connected to the computer and internal storage is accessible (Ver 4.00), with car charger it still powers down. After flashing with cure firmware(v5.50) I ran rmprepusb and formatted the internal storage(after backing it up) and then flashed original Firmware (v 5.50). After that it goes back to Rating: 5