Hey 21-Million, I heard you were still having issues with this - as LoboGuara mentioned, the next set of possible set of issues might be the connection from the external drive to the pi itself.
I would try the following, in this order:
- Recheck all the connections of the drive, try plugging it into one of the USB2.0 slots (the not blue ones) on the pi and see if that boots up again.
- If you have one, try using a different drive enclosure or USB cable to connect the drive to the pi, we’re trying to see if it’s the drive itself, or just the connection between the drive on and the pi.
- If that still doesn’t work, then we’re probably looking at formatting the drive, or replacing the drive entirely. Before you get that far though, I’d like to see some logs, could you follow these steps and paste it into something like 0bin.net? How to Generate Debugging Logs