How to #upgrade CP-7942 through #TFTP

Upgrade firmware on Cisco phone:

Step 1 Unplug the power cable from the phone and then plug it back in.

The phone begins its power up cycle.

Step 2 While the phone is powering up, and before the Speaker button flashes on and off,

press and hold #.

Continue to hold # until each line button flashes on and off in sequence in amber.

Step 3 Release # and press 123456789*0#.

You can press a key twice in a row, but if you press the keys out of sequence, the factory reset will not take place.

After you press these keys, the line buttons on the phone flash red and the phone goes through the factory reset process.

Do not power down the phone until it completes the factory reset process and the main screen appears.

If you looking to download a firmware for you Cisco phone and you don't know which one you need visit this website showing below:
http://sluppend.com/1AIE

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Please watch: "HOW TO REPLACE #IPHONE 8 BATTERY SOLUTION WITHIN 2 MINUTES | BY SAMER .INC|"
https://www.youtube.com/watch?v=6B223...