can i root my xperia s, back up the rom, then unroot and update to ics and see if the ui is laggy and slow besides having issues with it, and if it actualy is laggy and slow root again and go back to gb via the backup i did?
after i back up ill update to stock ics not a custom rom so i can see and some users say that the dialer takes up to 5 secs to open and the fast capture only works 30% of the time, and as i said i will only root on gb to back up the rom not on ics
Also you don't need to root to manually upgrade or downgrade - Rooting is for installation of custom roms and having access to the root of your phones files to uninstall the bloatware that under normal circumstances is uninstallable - Rooting also if using the right software will let you overclock your phone or in my case underclock giving much much longer battery life as I don't use mine for games
i mean i want to backup gb and i dont want to update to ics unless gb rom is backed up, so if i dont want ics ill go back to gb via cwm recovery, will it work if i root and go to cwm and backup the rom then update and if i want to go back to gb i could just restore from the backed up rom
you don't have to do all that, the only way I know to backup your firmware is with PCC/SUS and flashtool, unless you want to flash the global generic firmware.
