Possible.
SHSH Blob Saving Guide (iOS 7 Era) Source: The iPhone Wiki / TinyUmbrella Documentation iphone 5s ios 7 downgrade
| Model | Downgrade to Original OS (iOS 7) | Reason | |-------|-----------------------------------|--------| | iPhone 4s | Yes (iOS 6/7/8/9) | Bootrom exploit (limera1n) + OTA signing for iOS 6.1.3 | | iPhone 5 | Yes (iOS 6/7/8/9/10) | OTA signing for iOS 8.4.1, then dual-boot | | | No (only dual-boot) | No bootrom exploit; SEP mandatory from iOS 8 onward | | iPhone 6/6+ | No | Same SEP issue + stronger nonce entanglement | Possible
However, as with any new software release, some users found iOS 7 to be less than satisfactory, whether due to performance issues on older devices, dissatisfaction with the new interface, or simply a preference for the familiarity of iOS 6. If you're an iPhone 5s user who upgraded to iOS 7 and now wishes to downgrade back to iOS 6, this article will guide you through the process. as with any new software release
