(1) If the pad still has a black screen at this time, you can contact the after-sales e-mail: service@flsund3d.com
(2) If the pad can be turned on normally, you can continue to check down the list
If there is no problem with the 8P cable, turn on the machine and check if the power light will be on. If the power light is not on, it is the problem of power supply, contact after-sales service to deal with it
If the power light is on normally, you can continue to check down the list
After checking this step, please feedback all the checking results to the after-sales mailbox for processing
Refere video:
https://www.youtube.com/watch?v=MWBjypvM7s0