Yes, this is my very first step (just right before I would be up to re-flash …):
$ git clone https://source.puri.sm/Librem5/librem5-flash-image.git
Next one (up to the method I use) for me would be:
cd librem5-flash-image
@carlosgonz, yesterday, after: uuu -lsusb, I typed following:
# ./scripts/librem5r4-flash-image --variant plain --dir /home/user-name/Documents/Build_11XXX/Download --skip-cleanup --skip-flash
And now can confirm that sudo uuu flash_librem5r4.lst method of flashing Librem 5 worked for me (actually on my phone) flawlessly: External battery charger for Librem5 - #48 by Quarnero.