Do you have ActivManger installed? If this is missing or out of date this could be why you are unable to calibrate. To download this please go to http://www.PrometheanKB.com and search for article 10902.
Please let us know if this solves your issue.
Promethean Technical Support
(Support Case: 574261)
- Release notes for ActivInspire v2.21 (released 5 January 2021)
- Release notes for ActivPanel Elements Series v4.3.0 (released 16 December 2020) and v4.3.1 (released 7 January 2021)
- Release notes for myPromethean portal v1.4 (released 2 December 2020)
- Release notes for ActivConnect OPS-G v2.4.4 (released 16 October 2020)
- Release Notes for ActivPanel Elements Series v4.2.0 (released 30 September 2020)