Cisco 7975 Factory Reset

Factory Reset of Cisco 7975:

1. Unplug the power cable from the ip phone and then plug it back in.
2. While the phone is powering up, and before the Speaker button flashes on and off, press and hold the hash # key.
3. Continue to hold # until each line button flashes on and off in sequence in orange color.
4. Now release the hash # key and type the following sequence 123456789*0#

Factory Erase including Splash Screen:

Follow the above instructions, For the key sequence in Step 4 use this

3491672850*#

 Start the ftp server. It should be loading the firmware.