android write protection and flashing roms

alright guys i know you need root to flash roms and if your like me with the droid turbo xt1254 running 5.1 well your SOL on root for now and verizon has our bootloaders locked so i was thinking when you update it verifies motorolas signature on the update so with that being there we cant flash w/o root even then mofo root only did so much for the 4.4.4 users that paid not beeing able to disable the write protection so could we some how get motorolas signature from and OTA zip and put that on or into an img or in a ROM and bypass it this way thus not needing root idk this idea has been in my head for a bit and id love to see what you guys think until then i will keep tryin on this god forsaken update