Router# configure terminal Router(config)# no boot system Router(config)# boot system flash:c800-universalk9-mz.SPA.159-3.M10.bin Router(config)# end Router# write memory Use code with caution. Verification and Troubleshooting
The flash memory must have at least 30MB of free space .
If you are running into specific error messages, I can help you troubleshoot. Please let me know: What is the ? What is your router model ? Are you using USB or TFTP for the transfer?
Router# ping 192.168.1.50 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.50, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5) Use code with caution. Step 3: Copy the New IOS Image to Flash Memory c800universalk9mzspa1593m10bin install
Never upgrade firmware without a rollback plan. Back up your existing configuration file and current IOS image to your external server.
rommon 2> tftp 192.168.1.100 get C800 Universalk9mzspa1593m10bin
After the router reboots, verify the installation was successful: Please let me know: What is the
Connect via a console cable with settings: 9600 bps , 8 data bits, no parity, 1 stop bit, and no flow control.
Once configurations are saved, execute the reload sequence and confirm operational success. Post-Install Verification
Router# verify /md5 flash:c800-universalk9-mz.SPA.159-3.M10.bin Use code with caution. Router# ping 192
Look for the available physical compact flash and onboard RAM. Next, verify available storage space: Router# show flash: Use code with caution. 2. Required Tools and Software
Windows Firewall blocks port 69, or there is an ACL mismatch.