Here is some error that might be seen
CHECK YOUR PHONE SELECTION
BAD POWER TRANSISTOR OR CABLE NOT CONNECTED AT ALL
caused by short circuited phone, wrong polarity when using JIG type cable, etc
measure vbatt on cable before decide to change the power transistor!!!
BAD POWER TRANSISTOR #2
– on normal phone, SCAN OK, BOOT ONLY OK on FIRST TIME, NO SCAN AFTER. – collector and emitor is shorted out.
on this error: check card reader (bend, badly soldered) also possible your windows is bad, check also usb cable for box.
image original by gbluez