Which Tablet do you got? H6 pen with 4096 sense only Work with Ubook pro n4100 and 8100y chips. Meanwhile h3 pen Work only with the Ubook, because you worte your question in the wrong Thread If you own a Ubook pro. However i dont have this isssues with the Ubook pro and the h6 pen. There is also an Update for the h6 pen in the Ubook pro Thread.
Update:
I need to Update it there a newer Version of the normal Ubook which only Support the h6 pen, you should ask the Management and Show them you Version number, its found behind the device
And did you Update the TP driver ? You can find it Here