From the Notes of PS3ita Manager it seems to be a Temp change. They also have a tool that permanent changes it, but dont think its written for 4.46.
Dont need to uninstall MM. Just Install, load it up, u need to do a few configs when u first start up like screen size, Games directory then press start and it should be something like network settings then Change Console I.D
Last edited by dyceast; 07-20-2013 at 12:01 AMReason: Automerged Doublepost
Thanks I was able to change the console id and go online just updated my fifa 13 squads... I wish there was a problem which could be able to change my console id permanently without hardware flasher as I dont know anything about them do I even have them but all the same thank you for your help.