Q: Can't recover iPhone 5

Hello guys,

I bought an iPhone from a guy and he said that when he was trying to update it to version 8.1.3 but it failed somehow. Then he said when he connected his iPhone 5 to his macbook it turned on and showed him the apple logo and then red itunes logo. Now I got the iPhone. It wont start or boot the apple logo. I connected it to my pc running windows. Got it into DFU mode and tried to restore it. It downloaded and extracted the software but after that it was giving me the waiting for the iPhone. After like 3 minutes of that I got the error 4005. I tried restarting the pc updating the pc and itunes. Nothing helped. The phone is on the charger for more than 20 minutes and notihng happens. I am hopeless.

Hope anyone can help