We were trying to upgrade to version 4.2(6d) from 2.2(4p), the upgrade via GUI failed on the spine. this spine was showing up inactive on the fabric interconnect. so, we contacted TAC to solve it, he recommended installing a new certificate SSL on the spine. Now during boot of the spine, it shows 'certificate verification failed, re-program it ... ', it fails to boot and enter into a boot loop.
Is there any way to reset everything on the spine and run it as NXOS mode, despite the model is just for ACI (N9336PQ)?