My mp3 mp4 has a smashed screen?

when went to bed last night i put my mp3 mp4 on charge and when i woke up in the morning i switch my mp3 mp4 on then i went to the toilet and when i came back to my room my mp3 mp4 in the middle and when to my bed i heard a crunch and when i turned around i talked to my self and i said why was my mp3 mp4 in the middle the room so when i looked the screen it was smashed so do you how to mend it and the way i haven't got screwdriver to un do the screws so can you send my a screwdriver