u/Baguette-With-An-F

I bought a phone from a friend of mine who had forgotten his passcode we signed in to iCloud and removed the phone from find my and his apple account. I had to plug it into my computer using the apple devices software. The phone is recognised in recovery mode and when i reset and update it. it downloads and extracts the software the phone responds well until the very last portion of the progress bar when i get an error 10 which is a connection or hardware issue. It behaves this way when booted into DFU also help/ advice?