Input your Apple Account credentials when prompted by the App Store popup box.
The iPhone 5 utilizes the A6 System on Chip (SoC). Unlike the A7 and later chips, the A6 does not possess a Secure Enclave Processor (SEP). The security of the device relies on the Secure Boot Chain and the "restricter" mechanisms. Iphone 5 Icloud Bypass 10.3.4 Windows