brahim Tanjawi , Find links below to help in the changing of screen on your device link #1 video and link #2 guide, 3rd link is just 1 of many sites you can get replacement screen, you can do a google search for better pricing. Good luck.

I hope this helped you out, if so let me know by pressing the helpful button.

https://www.youtube.com/watch?v=XFDI3bKm...

http://www.formymobile.co.uk/s5570disass...

https://www.aliexpress.com/store/product...