Display test failed #10120 (SL1/SL1S)

This article is also available in following languages: 

What happened?

The printer is displaying the message: Display test failed, check the connection between the display and the A64 board.

Error name: Display test failed

Error code: #10120

 Issued when the printer was not able to test the print display.

How to fix it?

Check the cable connection to the mainboard. Be careful as the print display flat cable is very fragile.

Original Prusa SL1 display cable	Original Prusa SL1S SPEED display cable

How to replace the part

How to replace the print display (SL1) [進行中の翻訳]