I have downloaded this IOS filec2951-universalk9-mz.SPA.152-4.M7.bin.
Now, please let me know the steps to upgrade the firmware on ISR C2951 router.
1. Copy the IOS into the router;
2. Change the boot variable string to instruct the router to boot the IOS;
3. Save the config; and
4. Reboot the router.
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