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+---- Thread: T22 won't upgrade (/showthread.php?tid=3910)
T22 won't upgrade - lonvoice - 06-04-2015 06:32 AM
I have an unused T22 that won't upgrade to 7.72
It says it is upgrading, and even that it succeeded, but still shows:
Firmware Version 7.60.23.17
Hardware Version 5.0.0.55
?
Additional info - I've tried 7.70 to see if an earlier version would work as a stepping stone, but it didn't.
Trying to go back even earlier, using firmware 7.61 (link 20 on http://www.yealink.com/SupportDownloadfiles_detail.aspx?ProductsID=63&CateID=186&flag=142 ) seems to be a config file rather than a firmware?!
(and I have factory defaulted it first)
RE: T22 won't upgrade - Flora_Yealink - 06-04-2015 08:28 AM
Thanks for your information , I have forwarded your post to the person who will contact you through the email .
Best Regards!
Flora
RE: T22 won't upgrade - lonvoice - 06-05-2015 05:20 AM
Haven't heard anything yet?
RE: T22 won't upgrade - Flora_Yealink - 06-05-2015 02:55 PM
We are checking with the local distributor and will let you know if any update.
Best Regards!
Flora