Because that is the last version the iPhone 4s ever received. Users stuck on that version cannot upgrade to a newer, more secure iOS. This means they cannot use the "iCloud Bypass via iOS 15 loopholes" that exist for newer phones.

When using any third‑party tool, particularly closed‑source or paid software, you are trusting the developer with access to your device. Malicious tools can:

You will be redirected to the custom DNS portal, allowing you to use streaming apps, web browsers, maps, and games. Official Channels: The Safe Alternative

The tool utilizes custom ramdisks to write the older operating system directly to the NAND flash memory.

A (soldered correctly to interface with the Arduino). A standard 30-pin Apple cable. A computer running macOS or Linux. Step-by-Step Technical Execution

This method acts as a "tether" bypass. You cannot use iMessage, FaceTime, or push notifications. If the device reboots or loses power, you must repeat the process. However, for getting a locked iPhone 4s to act as an iPod or a basic dialer via VoIP apps, this remains the exclusive go-to.

Note: For a legacy device like the iPhone 4s, physical Apple Store technicians rarely process these requests in person; the online portal is your best option. Method 2: The Arduino + USB Host Shield Hardware Exploit

: If the original owner is available, they can sign in to iCloud.com/find , select the device, and choose Remove from Account to instantly release the lock.

: If you can contact the original owner, have them log into iCloud Find My from another device, select the iPhone 4s, and click Remove This Device .