Thread: nüvi 1490 LM - from boot looped to dead? - case slosed

I got a Garmin nüvi 1490LM with a boot loop. No idea what happened to it to get into that state.

I installed the Garmin USB drivers, was able to put the device in pre-boot mode.

I checked with "g7towin", I have HW-version 972.

I downloaded the "nuvi13xxand14xxseries_GCDFile__630.gcd", converted it in GarminCure3 to Cure, send my device to pre-boot mode and flashed it via Updater (the nüvi shortly display "LOADER LOADING" and then "SOFTWARE LOADING").
The "Erasing..." step of flashing the firmware ended with the nüvi restarting and "boot looping" again.

I also tried QuickCure, wich finished successfully, but the loop loop was still there and no MSM.

I stumbled upon this thread: [Only registered and activated users can see links. ], dumping NV (Ldr.bin & update.txt in folder Garmin\Updater\0972\), which was creating files on the SD card. see attached XXX

Butters suggested in post #14 to manipulate (replace first occurance of "0C 80 A0 E1" by "0C 80 A0 E3") the extraced boot.bin from "nuvi13xxand14xxseries_GCDFile__630.gcd" and flash it while SD card only contains Garmin\Updater\0972\update.txt

That lead to a short green chart on the nüvi device. I restarted an the chart got bigger. At one step I was asked about the maps I guess.
Finally the storage even was shown in Windows, so I guess this was the MSM.

I decided to update via Garmin Express, which found the nüvi and ran a small software update, which did not finish as the device got "lost" again in Windows.

Since then I am not able to turn the device on anymore, neiter by power button nor by plugging in the USB cable attached to my PC.

I tried different USB ports and cables, but that is not the issue as posts and cable are working with another non Garmin device and fine before.

Is there anything I can do to revive the nüvi?

Thanks