Yealink T46S Skype for Business User Manual page 229

Click Browse... to locate the firmware from your local system.
2.
Click Upgrade to upgrade the firmware.
3.
The browser pops up the dialog box "Firmware of the SIP phone will be updated. It will
take 5 minutes to complete. Please don't power off!".
Click OK to confirm upgrading.
4.
T46S phones can also be upgraded from the Skype for Business server. For more information
on how to upgrade the T46S phone from the Skype for Business server, refer to
Phone Firmware from Microsoft Skype for Busniness Server
How to reset your phone?
Generally, some common issues may occur while using the phone. Your system administrator
may ask you to reset your phone to factory configurations after you have tried all
troubleshooting suggestions but still do not solve the problem. This operation will delete all
your personal configuration settings, and reset all settings to the manufacturer default setting.
Note
Check with your system administrator if you want to keep some personal settings before
resetting your phone.
To reset the phone via phone user interface:
Press Menu->Setting->Advanced (default password: admin) ->Reset to Factory.
1.
Press
2.
Option field.
Press the Save soft key.
3.
or , or the Switch soft key to select the Reset to factory from Reset
Troubleshooting
Updating
.
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