Hard bricking happen when you do something stupid. Also in general there is a Thread How NOT Brick your Phone. Anyway, to get root you have to downgrade again to .534, I recommend to root with Bin4ry, then update directly to .136 with instructions given by NUT Here
. You cannot keep root updating system via OTA, you will lose everything.
IF I HELPED DO NOT SAY THANKS, CLICK IT.
My Evolution: Sony Xperia Z1 - UB + 4.3 Rooted + Deodexed, HTC HD2, HTC Diamond 2, HTC HD Blackstone, Nokia 7070 Prism, Qtek 9100, Nokia 3100, Motorola T720i, Nokia 3310, Sony Ericson PF 768 (Blue)