Find the latest Firmware : https://software.cisco.com/download/release.html?mdfid=284846029&softwareid=282046477&release=3.3.0SE&flowid=45549

Setup TFTP Server ( Download : http://tftpd32.jounin.net/tftpd32_download.html )

Copy Bin file to TFTP Directory

3650-SW1#copy tftp flash

3650-SW1#Address or name of remote host []? 10.1.1.250
3650-SW1#Source filename []? cat3k_caa-universalk9.SPA.03.06.06.E.152-2.E6.bin
3650-SW1#Destination filename [cat3k_caa-universalk9.SPA.03.03.01.SE.150-1.EZ1.bin]?<enter>

3850-SW1#software install file flash:cat3k_caa-universalk9.SPA.03.06.06.E.152-2.E6.bin switch 1-4

The install should ask you to reload which will restart the whole stack ( All Stack members should run the same IOS ) 

If the SSH console disconnects during the install progress you will need to do an Manual Reload Command