HOW TO ENTER# BIOS IN LENOVO #IDEAPAD #S340 xD hahaah #lol
TL;DR: Shutdown the device, then plug in the USB stick. For example, if one wants to boot from a USB stick.
Press the little hole on the right-hand side of the device with a SIM eject pin, and voilà! The boot menu is available. Cheers! #TechTips #USBBoot #Gadgets