Replace B2150 with B2250 when service is expired?

Hello, 

Thank you for your question. I understand you are asking about the license compatibility and if you contact support directly we can review the license details and see if it is eligible for the software compatible with the B2250 blade. However, without active support I would suggest contacting sales directly as they will have more insight into chassis, blade, and license compatibility. They will be best fit to review your current license with possible license renewal or the possibility of a lab license that may best fit the budget you have available. 

If any of this information helps please let us know, or if you have any follow up questions. 

Thank you, 

Melissa