[xeroaura]

Download the IPSW from here: https://ipsw.me/

Manually install through restore. Example: http://osxdaily.com/2010/11/23/how-to-use-ipsw-files/ (Click restore instead of update button for a full wipe)

[jvagner]

Wish that I could but I'm stuck in an endless cycle shown here: https://imgur.com/a/nnt1f75

...and iTunes is unusable during this cycle.