vp 2009

[Yealink_Michael]

hi

you can try to long press the OK key for more than 10 seconds and then release to press OK key again to rest the phone to factory , after that , the password should be admin !

if the firmware is really old like 22.x.x.x ，then please try below :
1、Input the following string *#5702000#;
2、The phone will enter the test model, and the LCD display “KeyBoard Test”
   
3、Press the “OK” button twice, then the phone will resume the configuration, the passwords will be restored to the factory default.

TKS & BR
Michael
Yealink WIKI : http://support.yealink.com/