I'm still at firmware .230 (Generic DE) smok.y: How did you remove old update?? and what you mean with "i give full Access back for playservice under admin section"??
sorry, I'm newbies
thanks
Use towelroot from Geohot (Just like Narry84 said).
it works for 4.3. (I can confirmed, it works for me)
and then install SuperSU from PayStore
that's it
Just Install Sony PC Companion (Download from Sony). Put USB Cable between your Xperia Z and PC and then start PC Companion Program. The Program search automatically for newest Firmware for your phone and then just Update. that's all.
(Sorry for my Bad English)