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The factory reset gesture depends on the brand of phone. Use the section for your phone — the gestures are not interchangeable.
The Yealink hold-OK gesture does not reset a Polycom phone, and the Polycom keypad sequences do not reset a Yealink. Make sure you are following the steps for your brand.
1

Hold OK

Hold down the OK button for several seconds.
2

Confirm the reset

A confirmation screen asks for permission to factory reset. Press the OK soft key to reset.
The phone reboots and resets.

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Polycom 400 series

These steps cover the Polycom VVX 400, 410, and 415. Use them when you do not know the admin password.
1

Hold 0 1 3 during a power cycle

Power cycle the phone, then simultaneously press and hold the 0, 1, and 3 dial-pad keys until you hear a confirmation tone (or for about three seconds).
2

Cancel the boot

Press the Cancel soft key during the boot process.
3

Hold 1 3 5 during the countdown

During the countdown, simultaneously press and hold the 1, 3, and 5 dial-pad keys until the password prompt appears.
4

Enter the MAC ID

Enter the MAC ID of the phone, then press OK. The MAC ID is on a label on the underside of the phone.
The phone power cycles and comes back factory reset.
Your MAC ID is available on request, or in your VOXO Portal if you have access.
A factory reset clears the phone’s registration. If the phone won’t reconnect afterward, see Troubleshooting.