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IP 650 Dowgrade from 4.1.X to 3.1.X

Frequent Advisor

IP 650 Dowgrade from 4.1.X to 3.1.X



Is it possible to downgrade from 4.1.x to 3.1.x. I know it's possible to downgrade from 4.1.X to 3.3.X but then may I downgrade from 3.3.x to 3.1.X ?


Thx !

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Polycom Employee & Community Manager

Re: IP 650 Dowgrade from 4.1.X to 3.1.X

Hello DavidG,

The community's VoIP FAQ contains this post here:

Oct 7, 2011 Question: How can I setup my Phone / Provisioning / Download / Upgrade / Update / Downgrade Software?
Resolution: Please check => here <=


The above post and the Polycom UC Software 4.0.x Upgrade and Downgrade Methods (Engineering Advisory 64731) document explain the process.


Please ensure you always check the community FAQ and/or utilize the community search before posting any new topics or follow up post’s.

Please ensure to provide some feedback if this reply has helped you so other users can profit from your experience.

Best Regards

Steffen Baier

Polycom Global Services

The title Polycom Employee & Community Manager is a community setting and does not reflect my role. I am just a simple volunteer in the community like everybody else. All posts and words are my own & do not represent the views of Employer.


Notice: This community forum is not an official Poly support resource, thus responses from Poly employees, partners, and customers alike are best-effort in attempts to share learned knowledge. If you need immediate and/or official assistance please open a service ticket through your proper support channels.
Please also ensure you always check the VoIP , Video Endpoint , Skype for Business , PSTN or RPM FAQ's
Message 2 of 2