Step #1 Updated from sealed box (unlogged initial version) to 184.108.40.206 (C432CUSTC432D1)
#2 Updated from 220.127.116.11 (C432CUSTC432D1), to 18.104.22.168 (SP52C432E2R1P2)
#3 Updated from 22.214.171.124 (SP52C432E2R1P2), to 126.96.36.199 (C432E1R1P1)
I now see "Your software is up to date" on 188.8.131.52 (C432E1R1P1)
Bought unlocked, SIM-free, NO SIM in whilst any of these updates came in and installed, device has never seen a SIM since I broke the seal.
I hope that's of help to someone.