Despite the prevalence of scams, several legitimate, technically sound methods exist to bypass Activation Lock on an iPhone 4S running iOS 9.3.5. None are "plug‑and‑play"; they require patience, attention to detail, and sometimes a second computer. However, each has been demonstrated to work by the security research community.
You can turn off Activation Lock by signing in to iCloud or resetting your Apple Account password. How to remove Activation Lock - Apple Support
Activation Lock is automatically enabled when the feature is turned on. It links the device's hardware serial number to a specific Apple ID on Apple's activation servers. Even after a factory reset via iTunes, the device will still require the original owner's credentials to complete the setup process. Legitimate Removal Methods
architecture. Below is a report on the current known methods as of April 2026. 1. Hardware-Required Method (Arduino + USB Host Shield) iphone 4s activation lock bypass ios 935 exclusive
If you bought the phone secondhand, ask the previous owner to remove the device from their account via iCloud Find My .
: A popular free tool for older devices that often requires an Arduino board for the A5 chip in the iPhone 4s. Hardware Exploit (Arduino)
Remove the existing DNS and enter one of these based on your location: USA/North America : 104.154.51.7 : 104.155.28.90 : 104.155.220.58 Rest of World : 78.109.17.60 Activation Help to connect to the custom server. Software Tools (Windows/Mac) You can turn off Activation Lock by signing
This guide is for educational purposes and for legally owned devices you wish to recover. Bypassing Activation Lock on a stolen device is illegal.
Ensure your iPhone 4s is running iOS 9.3.5 or 9.3.6.
His journey led him through forum threads where experts debated the merits of using Arduino or Raspberry Pi Pico to exploit the A5 chip's vulnerabilities. Others suggested simpler, software-based paths like iRemove for older Windows versions or the A5_Bypass_OSS tool found on GitHub. Even after a factory reset via iTunes, the
: For a more robust bypass on the A5 chip (iPhone 4s), experts often use an Arduino board USB Host Shield
This is a tethered bypass . If your iPhone 4s runs out of battery or is rebooted, the Activation Lock will return. You must re-run the Sliver tool every time the phone restarts.
If a solution is marketed as "exclusive" or requires payment before you can verify its legitimacy, treat it as suspicious. The most effective iPhone 4S bypass methods are open‑source and freely available to everyone.
The A5 bypass tool (often called ) interacts with the device at a low level, installing a custom activation record that allows the system to boot normally without requiring the original Apple ID credentials. Unlike many checkm8‑based solutions, A5 bypass tools can be untethered – the bypass persists across reboots.
Reset the password and use the new credentials to unlock the device. 2. Apple Support Activation Lock Removal Request
Despite the prevalence of scams, several legitimate, technically sound methods exist to bypass Activation Lock on an iPhone 4S running iOS 9.3.5. None are "plug‑and‑play"; they require patience, attention to detail, and sometimes a second computer. However, each has been demonstrated to work by the security research community.
You can turn off Activation Lock by signing in to iCloud or resetting your Apple Account password. How to remove Activation Lock - Apple Support
Activation Lock is automatically enabled when the feature is turned on. It links the device's hardware serial number to a specific Apple ID on Apple's activation servers. Even after a factory reset via iTunes, the device will still require the original owner's credentials to complete the setup process. Legitimate Removal Methods
architecture. Below is a report on the current known methods as of April 2026. 1. Hardware-Required Method (Arduino + USB Host Shield)
If you bought the phone secondhand, ask the previous owner to remove the device from their account via iCloud Find My .
: A popular free tool for older devices that often requires an Arduino board for the A5 chip in the iPhone 4s. Hardware Exploit (Arduino)
Remove the existing DNS and enter one of these based on your location: USA/North America : 104.154.51.7 : 104.155.28.90 : 104.155.220.58 Rest of World : 78.109.17.60 Activation Help to connect to the custom server. Software Tools (Windows/Mac)
This guide is for educational purposes and for legally owned devices you wish to recover. Bypassing Activation Lock on a stolen device is illegal.
Ensure your iPhone 4s is running iOS 9.3.5 or 9.3.6.
His journey led him through forum threads where experts debated the merits of using Arduino or Raspberry Pi Pico to exploit the A5 chip's vulnerabilities. Others suggested simpler, software-based paths like iRemove for older Windows versions or the A5_Bypass_OSS tool found on GitHub.
: For a more robust bypass on the A5 chip (iPhone 4s), experts often use an Arduino board USB Host Shield
This is a tethered bypass . If your iPhone 4s runs out of battery or is rebooted, the Activation Lock will return. You must re-run the Sliver tool every time the phone restarts.
If a solution is marketed as "exclusive" or requires payment before you can verify its legitimacy, treat it as suspicious. The most effective iPhone 4S bypass methods are open‑source and freely available to everyone.
The A5 bypass tool (often called ) interacts with the device at a low level, installing a custom activation record that allows the system to boot normally without requiring the original Apple ID credentials. Unlike many checkm8‑based solutions, A5 bypass tools can be untethered – the bypass persists across reboots.
Reset the password and use the new credentials to unlock the device. 2. Apple Support Activation Lock Removal Request