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Hi there!Go to the lowest 7 version and install it. If all goes fine you can then move up to higher one. Dont forget to back up your current files ALWAYS!
Hi there, please have a read on this link, which I feel will be of help for you on the ASR's upgrade procedures and more: https://www.cisco.com/c/en/us/td/docs/routers/asr1000/configuration/guide/chassis/xe-16-7/asr1000-software-config-guide-16-7/iss...
