Hi there,
After checking with related departments, we do have some models that support finger touch only and not supporting pen touch. It is the panel hardware difference and limitation. So it can not be changed to the other way.
MotoWiz's suggestion is one way to check, if you would like to double confirm, let me know.
I will send you PM and you may share the product SN with me.
Really sorry for the confusion.
Thank you.