5 Replies Latest reply on May 22, 2015 3:55 AM by wenganxiang

    My LCD screen shows only 2 lines of blocks!


      I am using Geeetech Prusa I3B, with LCD 2004 smart controller, and the printer has been working perfectly for a couple of months. Yesterday, when I was printing, the LCD suddenly showed only 2 lines of blocks!

      At first, I thought it was just constrast issue, but after I adjusted it, the screen still not worked, I checked the connection of LCD for many times, and I can confirm the connection is fine. I can not find any other solution. Can somebody help me? Thank you in advance.