I just wanted to confirm something and put my mind at rest. I really don't like the idea of all the O2 branding or bloatware on my Sony Xperia Z1 (C6903). After typing in the *#*#7378423#*#* code into my phone, my Bootloader unlocking status is set to NO.
Does that really mean there is absolutely nothing I can to to Root my phone and get rid of my carriers control and stupid branding? And if not, why is this?