<p>this problem can be solved by turning the slots on the display, as in the image below. Some Chinese displays are inverted from factory.</p>

<p><a href="https://i.sstatic.net/ZXR8k.jpg" rel="noreferrer"><img src="https://i.sstatic.net/ZXR8k.jpg" alt="enter image description here"></a></p>

CC BY-SA 4.0
2019-01-30T22:11:31.513Z
Yes, my experience was the same, I didn't know you could turn the plastic all the way around, good to know for next time! I just cut some extra slots...
0scar
CC BY-SA 4.0
2019-01-30T22:43:05.590Z
I've just switched the slots and it worked like a charm, it made my day!
David Souza
CC BY-SA 4.0
2019-01-30T21:45:31.993Z
2019-01-30T21:45:31.993Z
3D TECH BRASIL
<p>After uncommenting the <code>REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER</code>, the display is blinking and no characters are shown on the screen, I have already switched the cables between <code>EXP1</code> and <code>EXP2</code>, but it did not succeed.</p>

CC BY-SA 4.0
2019-01-29T23:17:54.710Z
This question could use some more information and pictures. It is a fact that some of the cheap displays have the EXP ports upside down, I have had that myself so I cut out some slots for the notches on the cable connector.
0scar
<marlin><full-graphic-smart-controller>
LCD full graphic smart controller, no character display and screen blinking
David Souza
# LCD full graphic smart controller, no character display and screen blinking

(Asked by: username_0 on 2019-01-29)

After uncommenting the `REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER`, the display is blinking and no characters are shown on the screen, I have already switched the cables between `EXP1` and `EXP2`, but it did not succeed.

**Tags:** marlin, full-graphic-smart-controller
> **Comments:**
> **username_1**: This question could use some more information and pictures. It is a fact that some of the cheap displays have the EXP ports upside down, I have had that myself so I cut out some slots for the notches on the cable connector.  

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## 1 answers

### Answer by username_2 on 2019-01-30. Score: 6 | Accepted answer

this problem can be solved by turning the slots on the display, as in the image below. Some Chinese displays are inverted from factory.

[![enter image description here](https://i.sstatic.net/ZXR8k.jpg)](https://i.sstatic.net/ZXR8k.jpg)

> **Comments:**
> **username_1**: Yes, my experience was the same, I didn't know you could turn the plastic all the way around, good to know for next time! I just cut some extra slots...  
> **username_0**: I've just switched the slots and it worked like a charm, it made my day!  

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