Hello, i've got a problem with my phone. It's LG Nexus 5 what i got in october. The problem is that it ran completely out of battery and now it wont activate or charge properly. It shows that it's charging for 8 seconds, then the screen goes black and it turns on the screen again few seconds later. If i try to activate it, then it shows the Google logo and the screen goes black. What should i do?

Thanks!

 

I don't have warranty for the phone.