Frequently Asked Question

How to factory default a Cisco SPA3xx or SPA5xx
Last Updated 3 years ago

Save the attached script as a BASH script on a Linux or Mac machine and use it to reset a locked phone you may have purchased second hand. NOTE: this script can take SEVERAL days! It works by doing a brute force attack against the phone to discover the password. Once discovered, the script will record the password on the LAST line in a file it creates while running (password.txt). You can then use this password to unlock and factory default the phone. The script requires the LAN IP of the phone and serial number. You set these in two variables in the script before executing. Then have PATIENCE!

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