HOW TO UPDATE WITHOUT BLOBS IOS 14 TO UNSIGNED VERSION 15.1FOR PREPARE JAILBREAK..See discription
open this link and see guide how to update unsigned version 15.1 for prepare latest jailbreak this method work last date 13march therefore hurryup if you want jailbreak on ios 15 come on..if you have any question text me on whatsapp 03416757787 good luck
https://ios.cfw.guide/updating-Dallas