OptipooptiPoint 410 standard S - cannot be reset by keys

[Straces]

Hello, i have configured SIP optiPoint 410 standard S (V7 R6.10.0), we made some network changes and phone device cannot get IP, how can i make factory reset on the phone? On HFA version it was possible by keys (i think 289) or enter admin menu (i think 103), but on SIP version i cannot do it..
How can i make factory reset device? I cannot use web - phone did not get IP.
I cannot enter admin menu - it is missing in phone menu.


Thank you

 

[masviss]

optiPoint 410/420
To perform a factory reset:
• Remove the LAN connection.
• Press hard keys '2', '8' and '9' simultaneously,
• Press the '*' hard key
• Enter the standard factory reset password "124816",
• Terminate by pressing the '#' hard key.