The actual console messages seem normal. It also looks like the basic install is correct. Between the other power supply and the provided power supply doing the same thing I’d have to say most likely it is a hardware error, but since something could have gone wrong during a flash I’d say to flash again.
It sounds like you’ve used this module on other carriers, so one thing I’d suggest is to look closely to see if it is mounted correctly and that there is no pin damage.
I also see that it still needs a lot of updates:
697 packages can be updated.
404 updates are security updates.
You might try doing those updates in case it is a software issue. Before you update note the location of two libglx.so files in “/etc/nv_tegra_release”:
grep libglx.so /etc/nv_tegra_release
You should see “/usr/lib/xorg/modules/extensions/libglx.so” and “/usr/lib/aarch64-linux-gnu/tegra/libglx.so”. If the command “sha1sum -c /etc/nv_tegra_release” shows the xorg version as bad after the update, then just copy the tegra version over this. These libglx.so files are exact matches…some rare updates might accidentally overwrite the xorg version. When that happens the GUI will fail, but console won’t be affected.
Package updates take a very long time and I’d actually suggest re-flashing first. I doubt updates will help, but consider that the update process is often set up to start automatically ("unattended upgrades) each boot and the update process itself might be hitting a snag. Once this is already updated you’ll know automatic update isn’t going to run for an hour after each reboot. If it still fails, then I think you have a partial hardware failure.