This method involves deleting the setup application file from the iPad's system. While "untethered" (meaning it survives a reboot), it is not a full unlock; you may face issues logging into iCloud or using some system services.
His method was insane: chain three ancient exploits. First, Phœnix (for the kernel), then a custom heap-spray to bypass the iCloud daemon, and finally a persistent launch daemon that would trick the activation ticker into thinking Apple had blessed the device forever. Every reboot, the fake ticket would reload before the real iCloud check ran. Ipad 2 9.3.5 Icloud Bypass Untethered
But if you own one collecting dust? The transforms it from e-waste into a dedicated kitchen recipe viewer, a bathroom Netflix player, or a kid's drawing tablet (the app "Paper" by FiftyThree still works great). This method involves deleting the setup application file