problems after upgrade

[jojonavarro69]

i've put some music on my memory card from my pc and returned it to my phone......................... after that when i try opening the album it says something like it failed to run............... so i read some posts here regarding that and updated my phone.................... now the phone has been like reformatted i tried running the album and it works though its filckering only when i'm in the album plus the i can't connect on my wifi it works perfectly fine before the upgrade

[Alexander1]

Go to settings > apps > the tab all > music player > clear data. Restart the phone by press and hold the power button and volume up at the same time until the phone vibrates.

What happens when you are trying to connect to your WiFi network? Do you get any error message?