[How to do instruction] Boot USB. Move sd-card to USB Drive

[Tim Curtis]

Adding .bin files to moOde is not necessary for USB boot.

There is an option in System Config for enabling USB boot on the Pi-3* models. 

Code:

USB boot (Pi-3*) ENABLE (i)
For Pi-3B, 3B+, and 3A+ this option programs OTP memory to enable booting from USB drive. After OTP is updated the system can boot from either uSD card or USB drive.

Its a one time operation and once enabled the message below will appear under the option.

Code:

USB boot is already enabled