Rumoured to be tomorrow morning for z1 O2 in the UK. Z1c gets it later on the same day. According to posts in O2 forums.
Just got the 4.3 update on O2, in the UK, via Sony PC Companion. On non-rooted, branded O2 phone.
Sent from my C6903 using Tapatalk
Turn off and hold volume button down it should say.
Unrooted and rooted again using your tool. Used towelroot to root the phone originally. Somehow I lost recovery and stupidly updated SuperSU via play store. Could no longer recover or give root permissions.
Your tool sorted it out on the Z1. U...
That's my question also. Well there ever be a way to unlock the bootloader without using the official way. Which is only for unlockable phones not sold by providers. Other handsets could have the their bootloader unlocked, unofficially.