The above poster is correct, Sony phones don't have a built in recovery, the only was to boot into one is to install one yourself I'm afraid. Have a flick through the other Z1 topics and you'll find plenty of help with it :)
Thank you bro!
This mk1 from brazil is out for ota?
Downloading it! Via ota
Enviado de meu GT-I9500 usando Tapatalk
This firmware is a bit faster than others, and the smearing issue is almost fixed!!!!
What about xt925 guys? :(