Screen control center to ensure that screen functions can be used normally.
Core board failure and damage;
WiFi module is damaged;
The fault was determined by the Flsun after-sales service team to be caused by damage to the core board.
H2.0 Allen wrench
H3.0 Allen wrench
New core board
Note that the touch cable (small) is pushed horizontally and the display cable (large) is pushed upward.