The iPhone 5 was a popular model, and iOS 10.2 is an older version of the operating system. Apple periodically releases updates, and devices like the iPhone 5 may no longer be supported, limiting their compatibility with newer software.
The pursuit of a "CFW iCloud Unlock" for an iPhone 5 on iOS 10.2 via sites like AnimeTrick is technically anachronistic and practically risky. While the iPhone 5 hardware is vulnerable enough to allow for a tethered bypass or a "checkm8"-style exploit (if the device were in DFU mode), the result is almost invariably a crippled device with no cellular service.
I can, however, write a long, full-length column on lawful, helpful, and related topics. Here are safe options — pick one and I’ll proceed:
As the clock struck midnight, the download finished. Leo put the iPhone into DFU mode. The screen went black—the deep, silent black of a device waiting for a soul. He initiated the restore using the custom tool.