Asr1000-rommon.173-1r.spa.pkg Link

verify /md5 bootflash:asr1000-rommon.173-1r.spa.pkg

If you need to manually force a boot from a previous working version, look for the physical configuration register toggles or contact Cisco TAC immediately to prevent a permanent brick state. asr1000-rommon.173-1r.spa.pkg

Run the upgrade command targeting the primary route processor (R0). If you run a dual/redundant supervisor setup, you must repeat this process for the secondary slot (R1). verify /md5 bootflash:asr1000-rommon