hey so last night i installed some stuff in installer then pressed the home buttin, it reset and did all its stuff then said setting language. so it said this for about 5 mins so i decided to restart my iphone. when i did it just has the black screen with the apple logo and doesnt turn wrong

anyone know how to fix this ?
maybe just restore and re unlock?

also would there be away to back up all your contacts to your comp withouut having it on?
i forgot to save them to my sim card