It exploits a checkm8 bootrom vulnerability (yes, checkm8 works on the 4S, though it’s tethered). It permanently patches the activation records on the device.
Scammers are rampant. Avoid "iCloud unlock software" that asks for your credit card without a demonstrated screen share. Avoid anyone who claims they can permanently convert a 9.3.6 device to a "clean" status in Apple's database. That is impossible. The server never forgets the original owner.
This article is for educational purposes only. Bypassing an iCloud lock on a device you do not legally own is illegal in most jurisdictions (Computer Fraud and Abuse Act, etc.). This information is intended for users who have purchased a used device with a valid proof of purchase or for security researchers. UnlockUnit, F3arRa1n, and similar tools should only be used on devices you own. The Last Stand of the iPhone 4S: The Complete Guide to iOS 9.3.6 iCloud Bypass In the rapidly evolving world of iOS security, the number "9.3.6" feels like an archaeological relic. Yet, for millions of users worldwide, the iPhone 4S and iPad 2 (the only devices that officially run this firmware) remain daily drivers, media players, or legacy devices for children. ios 936 icloud bypass best
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.
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. It exploits a checkm8 bootrom vulnerability (yes, checkm8
For the remaining 10% who need signal bars, the iRemovalPro tool is worth the $12. Just remember: You are not hacking Apple. You are exploiting a decade-old vulnerability that Apple has chosen not to patch because the hardware is obsolete.
Proceed carefully, verify your ownership, and enjoy your legacy device. Avoid "iCloud unlock software" that asks for your
(by TheMasterMike) is currently the industry standard for A5 devices (4S/iPad 2) on iOS 9.3.6.