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Problem updating T20p from 9.70.13.9
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RE: Problem updating T20p from 9.70.13.9
Firmware Version 9.70.13.9 is a custom version which is protected from being upgraded. So please ask your distributor for help.
04-11-2014 07:19 PM
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RE: Problem updating T20p from 9.70.13.9 - Yealink Support - 04-11-2014 07:19 PM

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