Jailbreak iOS 7 untethered for all devices running on iOS 7.0 - 7.0.4. One click + 1 min. and you can install new Cydia iOS 7 with iOS 7 confirmed design. What the next? BiteSMS iOS 7 version coming soon (betas has been released). Appsync for iOS 7 confirmed. :) We have good news for all, who wait Mobile Substrate for iOS 7 on ARM64 CPUs, because it compatible with all of the iPhone 5s, iPad Air, and iPad mini with Retina Display. Saurik just announced that a iOS 7 version of Mobile Substrate is out with support for iOS 7.0.4 - 7.0 and ARM 64.
JB 1: Uninstall old Cydia Substrate and Substrate Safe Mode
JB 2: Reinstall Cydia Substrate
JB 3: Install a known working tweak example Barrel