How to remove the watermark on tablet

I purchased a perpetual OEM license for GoJS. It works fine on website.
I am working on to wrap this into my android app. How can I remove the watermark? I tried the new generated key but no lucky.


Presumably you do not see a watermark when viewing the diagram on your website, even from the tablet, do you?

So are you running in an app of some kind? How was it built? You may need an unlimited domains license: GoJS Deployment -- Northwoods Software

If so, contact to ask for that licensing option.