Snom PA1 - Unable to update firmware




I recently bought 2 new Snom PA1’s to use as intercoms with our Lync 2013 environment. One install went fine while the other had some issues.

On the first PA1 I upgraded the firmware to the latest version, 8.7.5.35, from here: http://wiki.snom.com/Snom_PA1/Firmware

Unfortunately, this version does not work with Lync 2010 or 2013. You must install the UC Edition firmware in order for the Snom PA1 to work correctly with Lync 2010 or 2013.

On the second Snom PA1 I updated the firmware directly to UC Edition 8.8.2.26, from here: http://downloads.snom.com/snomuc/snomPA1-UC-8.8.2.26-SIP-f.bin


The upgrade worked fine and I was able to configure the PA1 and integrate it into my Lync 2013 environment.

I then went to upgrade the first Snom PA1 to the UC Edition from the current 8.7.5.35. I went to Setup >>> Software Update and pasted in the URL http://downloads.snom.com/snomuc/snomPA1-UC-8.8.2.26-SIP-f.bin. I then clicked Load and nothing happened. After several failures and a couple hours of research I finally open up a help ticket with Snom.

It turns out the issue is “Hidden Tags”. If this option is turned "On" the firmware update fails to load. Once I clicked “Use HiddenTags” to “off” the UC Edition 8.8.2.26 firmware loaded and installed correctly.


To turn “Use HiddenTags” option off go to Setup >>> Advanced Settings. Click on the QoS/Security tab then scroll down to Security. It will be the second option down.



Click the off parameter, click apply, wait for the page to refresh, then try your update again. Hope this helps. 

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