Downgrade from iOS 11.3 to iOS 11.2.6 on iPhone, iPod or iPad

iOS 11.3 comes with lot of handy features. However, luckily you can currently downgrade to iOS 11.2.6, if you want to avail Electra and other utilities. This guide will teach you how to downgrade from iOS 11.3 to iOS 11.2.6 on iPhone, iPod or iPad.