You will get the quickest answers if you ask the questions in the author thread for the device type handler that you are trying to use. The author will automatically be notified when posts are added to the thread, and other people who are using the same code may also be able to help.
So it depends on which DTH you are trying to use. The following is the most popular for that device so if that’s the one you’re using, ask your question in the following thread: