Last chance to restore your device to iOS 11.1.2 with futurerestore!
iOS 11.3 is now out and its SEP is incompatible with iOS 11.0-11.1.2. This makes it your last chance to restore to iOS 11.0-11.1.2 using the SEP from iOS 11.2.6. Once iOS 11.2.6 is unsigned you’ll be out of luck, which could be any day now!