[YMCS/YDMP Free Trial Program]Yealink would like to offer Free Trial Program of Yealink device management service for our current eligible customers. You can see the details below.
https://www.yealink.com/ydmp-freetrial-2020


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Yealink T28P Firmware Upgrade Fails
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Post: #9
RE: Yealink T28P Firmware Upgrade Fails
Hi wish2have,

Sorry for the late reply.
I think you can find the solution in forum "software protection" or asking Lydis for upgrading your firmware to their custom firmware.
(This post was last modified: 06-03-2014 03:45 PM by Yealink Support.)
06-03-2014 03:43 PM
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RE: Yealink T28P Firmware Upgrade Fails - Yealink Support - 06-03-2014 03:43 PM

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