The iOS Cryptographic Modules, Apple iOS CoreCrypto Module v7.0 and Apple iOS CoreCrypto Kernel Module v7.0, require no setup or configuration to be in "FIPS Mode" for FIPS 140-2 compliance on devices using iOS 10.
For complete instructions about proper use of the modules, refer to the Crypto Officer Role Guide for FIPS 140-2 Compliance: iOS 10 (PDF).
Learn more about product security certifications, validations, and guidance for iOS.