So when I turn on my lenovo laptop the power light stays on for a few seconds then it goes of (the while laptop shuts down) and then when I try to turn it on again it does the same thing and I've only used my new laptop for 3 days and then it does that.
Please someone help me!!!!
Certainly looks like a power supply issue. Since it is a brand new laptop, under warranty, I suggest you rush to have it replaced. I also suggest you insist for a replacement not a repair as you may have a lemon.