can a touch screen that has been upgraded to 2.5.3 work with a main controller on 2.5.2?

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if yes then does the same apply to a slave controller (slave controller on 2.5.3, master on 2.5.2)?

thanks.

[Cyknight]

It's very likely going to give you grief. Best bet is to have everything updated to the latest version, though in some situations you can factory restore units and then go to your current master version

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thank you.