Apple Stops Signing iOS 11.3.1 Firmware; Downgrading No Longer Possible For Electra iOS 11.3.1 Jailbreak<img style="float: left; margin-right: 10px" src="
![](http://www.iphonehacks.com/wp-content/uploads/2016/12/downgrade-ios-firmware-194x129.jpeg)
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Apple has stopped signing iOS 11.3.1, just a few days after releasing iOS 11.4 which included a number of features such as Messages on iCloud, AirPlay 2 etc.
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Apple Stops Signing iOS 11.3.1 Firmware; Downgrading No Longer Possible For Electra iOS 11.3.1 Jailbreak