I am not new to rooting and have rooted my nexus 5 twice before using CF Auto root. However I unrooted it with the Wugfresh toolkit so now my bootloader is locked without any sign of tampering or ever having been rooted. I recently rooted my for a third time using towelroot. But i started experiencing some issues and am now unable to unroot it. Pls help me. NOTE: My Bootloader is LOCKED.