Using PCC or SUS

[CAmit]

Hi, i just got new system update notification (12.1.a.1.201), for my sony xperia sp. Its size is 9.4mb.
I wanted to ask should i update through PCC, SUS or directly in my phn via wifi ?
What are the benefits of updating the phn with above mentioned methods ?
N whr can i get sus ?

[CAmit]

Camera shortcut appeared after restarting the phn, but sometimes it disappears.
Anyway, thanks for the help.

[_alexdon_]

Anytime.Please report any other problems if they occur.