Ipod 5th generation glitches
Hello I dropped my Ipod 5th gen this summer, then 2 months later I got it fixed now it's been 5 weeks since it's been fixed. Now my Ipod has some issues with minor pixel glitches when loading or playing apps, now I just experienced a blue glitch screen and 2 seconds later my ipod shut off. I turned it back on it's working ok but it's lagging ALOT, the guy who repaired my Ipod said the digitizer was broken but he repaired it, is there something that may corrupt my Ipod? Please tell me what's wrong before my Ipod breaks.
iPod touch (5th generation), iOS 7.0.2, Ipod digitizer had been replaced