Raspberry Pi won't boot? New Raspberry Pi 5 not booting? Try these Raspberry Pi troubleshooting tips.

If Raspberry Pi monitor is not working and there is no display after boot, follow the solutions mentioned in this post to resolve the issue, ...

Early versions of the Raspberry Pi could only boot from SD cards, but newer ones can boot from any USB device, like an external drive or USB stick. Here's how.

You can now boot the Raspberry Pi 3 from just about anything. The documentation for these new boot modes goes over the process of how to put an image on a USB thumb drive.