The first reboot takes a very long time (5–10 minutes). This is normal. Do not remove the battery.
Basic phone users (Call/Text/Music). If you don't care about looks and just want a phone that never crashes, ported CyanogenMod 11 is your answer. It is based on the same Android as stock, but without Samsung’s lag. galaxy pocket neo custom rom free
Widely considered the "gold standard" for this device. It offers a clean, near-stock Android experience, better RAM management, and the ability to overclock the CPU to 1.2GHz for improved responsiveness. The first reboot takes a very long time (5–10 minutes)
Here is the practical guide to getting that onto your device. near-stock Android experience