So here is what you should do
starting from a fresh vita on 3.01 firmware, do the following:
sign into your psn account by going to: settings > PSN > Sign In
- while there, go to automatic update and untick "download update files for applications" (this only applies for ps+)
you can sign out now.
go back to Settings > System > Auto-start settings
- while there go to download update file for system software and untick that as well.
go back to settings and go to Network > Wifi settings > tap on your wifi network and delete it, then untick the wi-fi to turn it off (that way without a remembered network your psvita will never autoconnect to your home network)
to finish everything of back on settings tick flight mode.
DONE there is no way that your vita will update itself, unless you want to.
Advertising