`` Android -LRB- operating system -RRB- : How can I solve '' `` Unfortunately System UI has stopped '' '' and '' `` Unfortunately Gallery has stopped '' '' messages on a Samsung S4 after I upgraded from Android 4.4.2 to 5.0.1 ? ''
I have a Samsung Galaxy S4 i537 running Android 4.4.2 . How can I update my phone to Android 5.0 Lollipop ?