Welcome to Android Central! The OP mentioned in the title that it's a G2.
It might be worth doing a factory reset (after backing up or syncing all of your data). I usually recommend a system cache partition wipe after major system updates, but unfortunately that isn't possible on the G2. If the reset doesn't help, bring the phone back to your carrier and show them how their update messed it up. Ask them what they can do for you, since it was working fine before their update caused problems.
And FYI, iPhones are not immune to update problems, either. All you need to do is look through the various mainstream tech sites about recent iOS 7 and iOS 8 updates.