Since upgrading to iOS 9.3, some users are reporting a strange line of text appearing beneath the Slide to Unlock entry on the iPhone’s lock screen. It reads something like this:
INTERNAL_INSTALL_DECLARATION, INTERNAL_INSTALL_LEGAL_INSTRUCTIONS INTERNAL_INSTALL_LEGAL_CONTACT
Alas, right now I can’t tell you how to fix it. I will as soon as I learn how.
However, I can tell you what it is. It’s part of a new feature added to iOS 9.3 to let the user be aware that the device is managed by an employer or other agency. 9to5Mac wrote about this in the beta stage.
In theory, this should only appear if a management profile has been added. You can check this by opening the Settings app, tapping the General heading, and looking for a Profile heading. Then tap it and delete the entry that might be causing this. If you don’t see the Profile entry within Settings, then you don’t have any profiles added to the phone – in theory, at least.
As for getting rid of it, well, all we can suggest is the ol’ backup and restore trick. Remember that if you do this then you’ll have to re-add any Apple Pay cards, and reconfigure the likes of Touch ID, because this sensitive info isn’t included in backups.