Free, fast (5 minutes), reversible. Cons: Not a permanent unlock; you cannot use cellular data or make calls; functions as an iPod touch/Wi-Fi tablet.
The 4S uses a specific USB chipset. By sending a malformed iBEC iBoot payload via the Arduino, you can patch com.apple.springboard to skip setup on the fly. ios 936 icloud bypass best
Because iOS 9 does not use the modern HTTP Strict Transport Security (HSTS) standards enforced in iOS 10+, attackers (and legitimate bypass tools) can intercept the activation server traffic using fake DNS records. This is the most popular "best" method for iOS 9.3.6 because it requires no computer, no jailbreak, and no disassembly. It redirects the device to a fake activation server. Free, fast (5 minutes), reversible