Update Android 4.4.2 To 5.0 ((hot)) Download

Since you will likely sideload the update: Go to Settings > Security > Unknown Sources → .

The update to 5.0 is a "must-have" for aesthetics and app compatibility, but "proceed with caution" for older hardware with limited RAM. Key Improvements Material Design update android 4.4.2 to 5.0 download

This is the safest method. The manufacturer pushes the update to you. Since you will likely sideload the update: Go