1. Make sure that the pen has not been dropped. (Please note: If the pen is dropped, it may cause abnormal line drawing)
2. Please upgrade the firmware. If the problem is not resolved, go to the next step.
How to upgrade the firmware please click the tutorial
3. Please replace the pen nibs:
How to replace the pen nibs, please click the tutorial
4. If you have tried the above and the problem is still not resolved, please contact the Parblo staff.
Please sign in to leave a comment.