Thanks for keeping us updated, and you're welcome.
Oh, so even in Wi-Fi things were odd. At any rate, it seems that the issue has been resolved by a hard reset... hopefully it stays that way. If things go wrong again, try to take note of the last thing/s that you did on your phone. I've read in the fora that installing certain apps (in the past) caused certain phones for certain users to start acting up... from the minor "Loading lag" to not being able to boot up the phone.
P.S.
Has your Mom considered "upgrading"?
