Hello, I have installed the TFT28 LCD but really need to be able to resume after tool change so have to install the ones with button.
What should I change in the firmware to have the ENH12864Z.
Or if there is another way to resume after tool change pause.
I am using MKS Gen l, + TFT28 LCD touch + Repetier.
Any help is more than welcome please.
Sorry, but are you turning the power off when do a tool change? You’re supposed to turn off the spindle obviously, but keep the Marlin Microcontroller running.
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@makesomethingcool My question is what do I have to change in Merlin to use this screen with button, I can not make the Repetier resume from pause in the touch screen (TFT28). But if you have any idea how to resume from touch screen, please share 
The V1 firmwares all have support for that screen enabled. You should just have to connect it to the EXP1 and 2 ports. If it doesn’t turn or, or it is blue, you might have the cables wired backward. There are 4 ways to attach them. One way works and the other 3 are harmless.
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What do you mean “resume from a touch screen”?
I use Fusion 360 and Marlin (the fish - not the wizard lol). Fusion creates tool paths and turns them into gcode using a thing called “post processor”. In the post processer code, you can tell it what to do on a tool change. So, for instance, I have an M0 command that says “Put tool #4”. You then put in the tool it asks for and hit the button on the screen to move on, where I then call a routine to home the Z axis for that new tool. Once that’s complete it asks you to “Turn on the Spindle”, etc.
If you are using Fusion and Marlin I posted my post processor on this forum somewhere, and I’m sure you can find others.
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What Manolo is saying is that they want the screen to work, so they have a button to press.
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ah… so your screen doesn’t work? In your post it was unclear what was wrong.
@manolo , inside confiuration.h, find the line below and try removing the “//” at the beginning:
//#define REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER
This should enable most generic LCD screens with a rotary button switch.
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Thank you That is it.