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All keys grey out T48G
Author Message
complex1 Offline
3CX Adv. Cert. Engineer
*****

Posts: 696
Joined: Jan 2014
Reputation: 22
Post: #2
RE: All keys grey out T48G
Hi,

Please upgrade the phone to the latest available firmware and try again.
Do not forget to reset the phone to factory default after the upgrade.
http://download.support.yealink.com/down....0.110.zip

Hope this helps.

Best regards,
Frank.

I'm Dutch, not English. Sorry for my imperfect grammar.
06-06-2017 05:08 PM
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Messages In This Thread
All keys grey out T48G - c99hris - 06-06-2017, 02:55 PM
RE: All keys grey out T48G - complex1 - 06-06-2017 05:08 PM

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