Yealink EXP50 User Manual page 71

To reset the EXP50 color-screen expansion module via phone user interface:
Press Menu->Advanced (password: admin) ->Reset Config->Reset to Factory on the
1.
host phone.
Press the Reset soft key on the host phone.
2.
The LCD screen of the host phone prompts the following warning:
Press the OK soft key on the host phone.
3.
The LCD screen of the host phone prompts "Welcom Initializing...Please wait".
The host phone and the EXP50 color-screen expansion module will be reset to factory
settings sucessfully after startup.
Reset of the EXP50
Note
then all custom settings on the host phone and the EXP50
be overwritten after resetting.
Using the Yealink EXP50 Color-screen Expansion Module
color-screen
expansion module can lead to resetting the host phone. And
color-screen
expansion module will
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