How to solve LK1 LK4 white screen during printing

Formatting tool download link, https://drive.google.com/drive/folders/1TgCT1CBsjI4-7prSu1nEUXxQ6vhsJzms?usp=sharing How to calibrate the screen, https://drive.google.com/drive/folders/1EO1OFx1dqBdErCaYGewP3RYOAYsOGxom?usp=sharing Firmware download address, https://www.longer3d.com/download-center