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T22 won't upgrade - Printable Version

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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
Hardware Version


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 ) seems to be a config file rather than a firmware?!

(and I have factory defaulted it first) Smile

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!

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!