After wallPen OS 3.0 has been installed, the procedure for new updates is described in the following video:
Video - How to UPDATE within 3.0 (4:12 mins)
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Download - wallPen OS 3.0.31 - Update from 3.x
Click on the links with the right mouse button and then "Save as..."
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Please open a support ticket if you have any difficulties with the installation and we will be happy to help. Thank you!