400HD Series IP Phones for Skype for Business
Version 1.2.196 42 Document #: LTRT-08459
6. In the About screen, scroll down to Version info
Note: After upgrading firmware for phones whose firmware is between Version 0.124 and Version
0.150 inclusive, the upgrade may be displayed as failed in the Microsoft Teams & Skype for Business
Admin Center. Touch Version info and confirm that the phone’s Firmware version is upgraded to
Version 0.158 and later. All future upgrades will be indicated as ‘Completed’.
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