If you the device and need help recovering access, here are legitimate steps:
The instructions below explain how to navigate, bypass, or remove the lock legally and safely. Understanding the Challenge on iOS 9.3.5
: Some advanced users use an Arduino with a USB Host Shield to execute a checkm8-based exploit for A5 devices. However, this is complex, often tethered (requires re-running after every reboot), and typically leaves the phone without cellular signal or iCloud service access . iphone 4s activation lock bypass ios 9.3.5
If you can contact the previous owner, they can unlock it remotely. They must log in to iCloud Find Devices , select the iPhone 4s, and choose "Remove from Account" .
The original proof of purchase (receipt showing the serial number). Valid government-issued identification. The device itself. If you the device and need help recovering
For most hobbyists, the is the most practical way to salvage the device for basic web browsing or media playback, while the Arduino method serves as an excellent technical project for iOS modification enthusiasts.
: These tools are used to put the device into pwnDFU mode , allowing you to delete the Setup.app file or downgrade the iOS version permanently. If you can contact the previous owner, they
When the device tries to move to the next screen to activate, tap immediately.
This method works by redirecting the device's activation check away from Apple’s servers to a third‑party one. However, it is only a temporary solution. After the bypass, you are often limited to basic browser functionality and cannot access the home screen or other features. This method has a low success rate (around 30% on iOS 8–10) and fails completely on modern iOS versions. It is also not entirely secure, as third‑party DNS providers could potentially log your traffic.
A: Apple requires the original proof of purchase (receipt with serial number). A second-hand purchase from eBay or a friend does not count unless the original buyer opens a support ticket.