Well true the original error of 01000000 is because the Sd card is no seated properly. Also, you might wanna make sure the e3 flasher is on its metal case properly. The metal case should of cam with the e3 flasher. Also, make sure the clip is on the chip properly and that you have applied a lot of pressure.

Don't worry about the "black screen, no HDD activity, and no USB activity" Just remove the clip and see if it boots up properly
If not make sure to get a valid dump bro with no errors and when you reflash it, it should come up back to normal.