How to "downgrade" a PS4: full tutorial by Modded Warfare - Wololo.net
SonysNightmare 🏴☠️ on Twitter: "🔥 FINALLY AFTER HOURS AND HOURS OF WORKING AND TESTING FINALLY THE MOMENT HAS COME A DOWNGRADE TOOL FOR PS4 ✅️ LOAD PS4 DEBUG PAYLOAD FROM ANY HOST
Reverting a PS4 from 10.01 to a Jailbreakable Firmware (Full Guide) - YouTube