Compatibility: Best for iPhone 4s and iPad 2 (32-bit only). Price: Free (Open source)
Sliver is a multi-tool famous for bypassing iOS 15, but version 7 specifically includes a plugin for "iOS 9.3.5 Tethered Bypass." This is the go-to iremove tool for hobbyists. iremove tools ios 9.3.5
iRemove Tools operates differently on iOS 9.3.5 than it would on a modern iPhone 14. On contemporary devices, iCloud bypass is often tethered (requiring a computer to boot) or involves complex "checkm8" hardware exploits. However, iOS 9.3.5 is susceptible to a specific set of vulnerabilities that existed in the 32-bit codebase. Compatibility: Best for iPhone 4s and iPad 2 (32-bit only)
The software functions primarily by exploiting bugs in the setup process and the communications protocols between the device and Apple’s activation servers. By intercepting or manipulating the activation request, iRemove Tools can trick the device into believing it has received a "go-ahead" from Apple’s servers, effectively skipping the authentication step. This is often achieved through a "host file blocking" mechanism or by utilizing the "Jailbreak" tether. Because iOS 9.3.5 can be jailbroken using tools like Phoenix, the system partition becomes writable. iRemove Tools utilizes this access to delete or patch specific system files that enforce the Activation Lock. On contemporary devices, iCloud bypass is often tethered
The result is a device that boots and functions on the home screen. However, the solution is rarely a "clean" restoration of the device. It is a functional bypass.
For devices like the iPhone 5c or iPad 4 (both capable of running iOS 9.3.5), advanced iRemove tools use the CheckM8 bootrom exploit. This exploit allows them to inject custom code into the device’s low-level boot sequence, effectively tricking the iOS system into believing the device is already activated.