Trying to update software to iqpanel2.8.1 as the Patch Tag. but I get an error message.
This may be an issue due to the current version on the panel. Can you try updating incrementally? Try updating to 2.5.3 first using the steps here:
Then update incrementally in this order: 2.6.3 > 2.7.2 > 2.8.1
Does that work?