What happens when e055 appears on the computer sewing machine fault display screen?

The screen components will explain such failures.

90%

Above.

1. Test the external monitor to see if there is any similar situation in the external monitor, so as to judge whether the fault is caused by the host part or the screen header part;

2. The external display is normal. Please plug and unplug the screen cable connectors on both sides again, and fix and check whether the screen cable wiring at the screen axis may be squeezed and interfered by other components;

3. The above operation is invalid. Replace the LCD screen for testing. If the fault disappears, it is an LCD screen fault, and the fault still basically exists as a screen line problem.

4. The external monitor has a similar fault, so you need to consider updating the graphics driver and flash memory.

Insert or restore the system;

5. Software problems can't be eliminated, so replace them.

cpu

Test to determine the reason for the failure is

cpu

The reason is still the motherboard.