# Screen turns on show S and turns off

**URL:** <https://forum.snapmaker.com/t/screen-turns-on-show-s-and-turns-off/27977>\
**Category:** Snapmaker 2.0 (3-in-1)\
**Created:** [November 22, 2022, 1:08pm UTC](https://forum.snapmaker.com/t/screen-turns-on-show-s-and-turns-off/27977 "2022-11-22T13:08:45Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![alex2](https://avatars.discourse-cdn.com/v4/letter/a/45deac/32.png) [@alex2](https://forum.snapmaker.com/u/alex2)\
**Post date:** [November 22, 2022, 1:08pm UTC](https://forum.snapmaker.com/t/screen-turns-on-show-s-and-turns-off/27977/1 "2022-11-22T13:08:45Z")

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Hello,

The screen does not work.  
I tested what would happen if I plug the screen alone into my pc. It boots and then obviously says that the machine is not reacting.  
Though if I plug it into to the controller box it just boots shows the ‘s’ for a couple seconds and then just turns black and nothing happens.  
But I can control the printer via pc even though the screen does not work.  
Thats why I assume that the port for the screen on the controller box is broken even though it’s ‘breathing’ (Although before it’s breathing it is lighting up bright for \<1s).  
I also mesured the voltages that the power supply outputs. They are all fine.

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**Author:** ![xchrisd](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/xchrisd/32/1503_2.png) [@xchrisd](https://forum.snapmaker.com/u/xchrisd)\
**Post date:** [November 24, 2022, 6:51pm UTC](https://forum.snapmaker.com/t/screen-turns-on-show-s-and-turns-off/27977/2 "2022-11-24T18:51:42Z")

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You have to email support if you need a replacement.

It should be possible to connect the hmi touchscreen to another usb port with an adapter usb-a to usb-c, it would work the same way like the usb-c port should do.