My Cloud FW v04.05.00-353 upgrade to OS5?

@harrysas
See the User Manual Chapter 3.
My Cloud Personal Storage User Manual (wdc.com)

  1. Using the provided Ethernet cable, connect one end of the Ethernet cable into a router
    or network switch port.
  2. Connect the other end of the Ethernet cable directly into the Ethernet port located on the
    back of the device

The WDMYCLOUD does not have wi-fi
WDMyCloudImage

WDMYCLOUD 1st Generation now on my Network only - My Cloud OS 3 Personal & Network Attached Storage / My Cloud - WD Community