Case:
The customer responds that the disk is not transferred after the hard disk is powered on, and all data in the hard disk must be restored.
Solution:
It is generally a problem with the circuit board without power. The use of a universal meter is really short -circuited by the spindle chip.I found a plate type differently but the plate type is the same, so I changed it.It is normal for power -to -turn.But still do not recognize, the question is there?By the way, I forgot to change NVRAM. I originally thought that I did n’t recognize it after changing it (Hitachi ‘s disk had to be matched after the NVRAM had to be matched). I did n’t expect that OnePlus was completely normal.The data recovery is successful!