EXP39 Firmware Update

[JasonHayes]

How do I update the firmware? I have a T27P. I also have an T26, but following the instructions from Yealink, I run into issues as my T26 is on Firmware 6.73.0.60 and the option "Advanced", is no where to be found. I have searched under, Settings, Upgrade????

Yealink Instructions....
1. Update your T26 firmware to version 6.60.0.101 or update your T28 to version 2.60.0.101.
2. Enter the web setting page of T26 or T28, Upgrade->Advanced->Zero Active, choose Enabled
option.
3. Reboot the T26 or T28, the phone will enter to page as below when it is initializing.
Press OK button in 5 seconds, phone will enter the page as below:
Connect your EXP39 and it will upgrade automatically.The screen keeps white in upgrade process.