Share your experience!
good day. i want to make a back up of my current ICS with build number 6.1.b.0.544. i mean everything. because i want to try the new .75 update. and if problem/bugs do really exist. i want to restore my old one. because some says it varys according to phone/country. is it really posilble? if so,how ?
thanks 
You have to download PC companion,you have the option of backing up there,and also for updating you can use PC companion or Sony Update Service.
http://www.sonymobile.com/gb/tools/pc-companion/
http://www.sonymobile.com/gb/tools/update-service/
Take care of what you backup and make sure you let PCC make his job,without interrupting the backup.
alexdon is right.folow everything on the link.
i would also suggest to wait for the jellybean update.
sir,i mean if i could back up my current ICS build. and restore it. i want to back up my current ICS build .544 and restore it.
PCC companion can back it all up