I would like to backup the stock rom of my brand new FP 3 on my own.
I don’t trust the download links mentioned in the following guides:
Is it possible to create an image of the complete stock rom using adb and fastboot?
Or should I temporary boot a downloaded twrp image using the following command: fastboot boot twrp.img
And once booted to this image, navigate to backup the system.
What is the recommanded procedure to create an image of the stock rom to backup the stock Android of the FP3?