The main difference is the Cisco 3850 switch run IOS-XE so you have to copy the.bin file to the flash on the switch and then install the software on the switch. The Cisco 3850 IOS upgrade procedure is very easy but it is a bit different than the usual software image of previous switches i.e 3750 etc.
Do you want to perform a Cisco 3850 IOS Upgrade? This short post will show you how to upgrade the software on a single Cisco 3850 switch or a 3850 stack, using TFTP and USB.
