Yealink Forums

thanks for your time. We bought two yealink sip-t38g IP phones used from a company who upgraded their phone system. they both have fonality firmware (38.70.181.11) which doesnt allow us to upgrade the phones firmware to the latest FACTORY yealink version. can someone send us the instructions and FACTORY yealink firmware so we can remove the fonality firmware, thank you

or provide an email address and we will email you requesting this information thank you!

Hi Mike,

Thanks for reaching out to Yealink. We've opened another email ticket following up on this issue - will update the status on the email thread. Thank you.

Regards,
Joe @Yealink

It seems that it is possible.
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I have the same issue