[Question] Help me please - Star S7589

[OviEcc]

Hello everybody! I'm happy to find this forum. I'm form italy and nobody can not help me and I hope you can help me. I have an Star s7589, in the first days it work good, but from 3/4 days I can't use it because it's continue going to crash. I try to reboot it, I try to factory reset but nothing is change. Now I want to try a new rom, but I don't how can I do it... Please can you help me to do it??? I'm very unhappy now for my mobile phone ... I hope to use it very quikly... Thank you..