My TX2 device does not boot after flashing with nvmflash.sh

I generated a clear massflash blob as described in README_Massflash.txt (Jetpack4.4.1) on my development Ubuntu 18.04 Linux PC. Copied the archive to new directory and untar it. After successful flashing the device does not boot (No nvidia splash screen). The logfile shows no problem everything succeeded. Flashing the device with flash.sh and the same image is no problem. I don’t know what’s the difference between flashing with flash.sh and nvmflash.sh. I did everything as it is in README_Massflash.txt

Hi,
Please try this package for JP4.4.1:
https://forums.developer.nvidia.com/t/massflash-utility-for-jetson-tx2-for-jetpack-4-4-4-4-1/158896/2