Hard reset a T20P and erase config

[quang11]

Please help, we are having the exact same issue. Our customer's numbers are getting ported over to us in less than 12 hours and we just found out that their phones have pre-existing passwords and the usual holding down "ok" for ten seconds didn't work. Also recovery mode did not reset logins.

We use Yealink for all installs except for conversion, thank You.


"I have a problem with a T20P phone. It is auto provisioned by my upstream provider, and we were testing before we rolled out a hosted solution.

The phone was operational when the testing was completed. An upgrade was then done on the phone to the latest version of broadsoft software, 9.71.193.6, but at the same time the test account was deleted.

Now I need to reset the phone, but nothing works, web interface, Pressing the OK button or uploading a new rom via TFTP, as the provider had set a unique password that was lost when the account was deleted.

So in short I do not have the admin password for either the web gui or the OK reset, and the TFTP upload retains the current config.

Any ideas on another way to recover the phone???

Thanks in advance"