Lumia 1520 Failed Roll Back To 8.0 And Now Not Turning On Or Charging.

Was attempting the roll back to 8.0 using the instructions from wpcentral and it downloaded and all that just fine but the installing portion kept eroding out and telling me to do volume down power to reset and then it would start the install over then do the same error. Until the last time, I held volume down and power and the phone went off but no vibration. Software or computer don't recognize anything being plugged in. Phone was over half charged so doubtful the battery died but I left it plugged in for three hours on a wall charger and nothing happened. Tried multiple chargers too. I'm sure I have to get it replaced but figured I'd ask just in case. Any ideas?