I got problem with Trio 8800 after upgrading to version 5.7.2 or 5.8.0 .The phone shows that there is newer version of software -5.5.2 and it makes self downgrade over the night. I tried to upgrade software via USB and HTTP interface. Either of this solutions failed in the end.
Solved! Go to Solution.
have a look at the FAQs:
Feb 02, 2016 Question:How can I prevent a Polycom VVX Business Media Phone to be downgraded / upgraded automatically via Skype for Business and/or Office365?
Yes I saw that. You use your Trio with SfB in O365 enviroment, right? MSFT has integrated v.5.5.2 in O365 and Trio wants to download that version, although you installed newest one. Please refer to the FAQ and it will solve your problem.
Yes I use SfB. After uploading lyncDeviceUpdateEnabledOFF.cfg still got same problem. It reverts back to 5.5.2.
Hello @jjkl ,
welcome to the Polycom Community.
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UC Software 4.0.0 or later via the Web Interface Utilities > Phone Backup & Restore > Phone Backup > Phone Backup. Please rename into .TXT or Zip the file to attach.
Since UC Software 5.9.0 simply provide this via the Web Interface Diagnostics > Download Support Information Package
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