For users who want a native iOS experience without buying an Arduino, certain desktop software suites utilize software bugs within iTunes backup restorations to skip setup steps. Tools such as , Frpfile , or legacy versions of 3uTools can occasionally force-activate an A5 device. Step-by-Step Instructions
Activation Lock is an anti-theft security feature designed by Apple that links an iOS device to its owner's Apple ID and password. It automatically activates when "Find My iPhone" is enabled and is designed to prevent anyone else from using, selling, or erasing the device, making it a significant barrier for those who have forgotten their credentials or purchased a second-hand phone that hasn't been properly cleared. For the iPhone 4S, which runs iOS 9.3.5 as its last supported version, the lock is enforced by a system process called Setup.app . Removing or bypassing this lock is the primary goal of all the methods discussed below.
A free, open-source tool designed for simplicity. It aims to remove the iCloud activation lock using a fully local processāno servers, payments, or accounts are needed. iphone 4s activation lock bypass ios 935 extra quality
Deleting setup.app results in a "tethered" or "bypassed" state. The phone will boot past the setup screen, but it will never get cellular service or make phone calls, as Apple's servers will still refuse to generate cellular activation tickets for the unauthenticated device. Final Verdict
: Since some bypass methods are tethered, install a tweak that puts the device into a deep sleep simulation when the battery hits 1%, preserving your bypassed system state from a hard shut down. Summary Comparison of Methods Difficulty Success Rate Requirements Permanent? Arduino Hardware Exploit Arduino Uno, Host Shield, Mac/PC Yes (Untethered) DNS Server Redirect Wi-Fi Connection only No (App Portal Only) Software Backup Exploit PC, Custom Script Tools No (Often Tethered) For users who want a native iOS experience
As security tightened, the community turned to hardware. Because the iPhone 4s uses the A5 chip, it is vulnerable to the exploit, which cannot be patched by software. This led to a more permanent, "extra quality" method involving an Arduino Uno and a USB Host Shield. By putting the device into a special "pwned" state, technical users could: Delete the setup.app file to skip the lock entirely.
This permanently deletes the setup application that holds the Activation Lock screen. Click . It automatically activates when "Find My iPhone" is
Connect your iPhone 4s to the Arduino Uno setup using the 30-pin cable.