Even if the tool "works," you may not get a fully functional phone. Some free bypass tools are "tethered" (meaning you have to reconnect to the computer every time the phone restarts), or they offer "WiFi only" functionality, meaning you will not be able to make cellular calls, send SMS texts, or use mobile data on the device.
Searching for "iCloud Unlocker 725 Full" leads you down a path full of technical complexities and security risks. While these tools do exist and can sometimes work on older hardware, the free versions often expose your device to malware or bricking, while the working versions are often paid. icloud unlocker 725 full
Most websites offering the "Full" or "Pro" version claim it supports: All iOS versions (including older legacy versions). Even if the tool "works," you may not