Originally Posted by MOHAMEDEG
Sony Update Service does not support this option
Maybe because it is a shortcut, go to where SUS is installed (Primary Drive/Program Files/...) find "Update Service.exe" and try the same on that.
If this doesn't work then I am not sure, you could try asking on the Sony forums
where you can find Sony representatives who could give better, specific, help.
Previous Devices: Xperia X10 mini pro
, Xperia X8
, Xperia Live with Walkman
& Xperia L
Current: Xperia SP
Android: 4.3 (stock
Build version: 12.1.A.1.205
Kernel version: 3.4.0 (stock
Baseband version: -20