ACER ASPIRE 7540-1734 LAPTOP 17.3" LCD LED Display Screen

hello once again and this is a bit of a problem I've got here this is a friend's laptop um yeah it brought it to me mask if I can fix it I'll fall yes I could I honestly for it could be a software problem but it looks like something more serious because every time when you turn it on switch it on and it comes on and we have no screen the screen won't work put it on play on chip using my charger because of all so here I've got a laptop a nice a laptop but slightly different model lines are mines and s fire 17:30 this is a 7 540 I'm really a lot of difference if this one's a little bit wider but this one ain't coming on I've Eve I've tried looking at phone line tutorials which I've seen some good videos and good tips and a one that really I want to look at is the updating the BIOS and he gave me a tip whoever done this is to switch it off already downloaded the pile onto a flash drive um