Fully Diagnose!
Check for sound (if getting sound, check LCD cable connection and LCD)
If shorting (boots/fan running but no display):
Check charging port connection
Check battery connection
Unplug everything (speakers, cables, etc), plug in one by one to find cause of shorting
Check charger, either the charger itself or the plug in can go bad!
Light indication! (blinking orange=battery, charging issue) (flashing blue light= 720/740 blue light error can be sent to re-flow)
When sending to solder/re-flow team, please:
If more than one motherboard in box, label which motherboard needs repair
Bag parts if they do not fit into the box
Make sure to take tape off CPU (silver square on motherboard)
Remove motherboard from device/bag/label!
***DO NOT RE-FLOW NEW MOTHERBOARDS-mark as defective and request a new one on the work order.***