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default username/password not working after firmware upgrade
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Mauro Offline

Posts: 58
Joined: Nov 2012
Reputation: 1
Post: #2
RE: default username/password not working after firmware upgrade
I hope Yealink staff may help you (I'm just a user, and I wish to do some more tests with when I have some time, to take a look if I get some password problems like you).

Just to tell a story, once I managed to gain access to a T28 after we lost its password...
(Using a temporary TFTP server and temporary changing TFTP setting in the DHCP) I created a MAC-specific autoprovisioning file containing the username/password lines ONLY... so the autoprovisioning updated the password and so I was able to log in, without losing any other setting at that moment. Good. Once inside, I exported the current configuration, to get a backup... when later switched back to the usual DHCP setting (and usual TFTP server, which contains the "complete" provisioning files) and rebooted, the phone re-applied that provisioning, overwriting part of user customizations (the part that was in the complete provisioning)... I expected this, so I then imported the configuration I previously saved, so restored the customizations.... but then it automatically re-applied the provisioning file once again, overwriting part of user customization again, and I didn't expect this. Bad! Well, at that moment, I gave up and managed to manually make the few user customizations the provisining had overwritten (fortunately, they were just a couple of things... otherwise, I may have removed such parts from the "complete" autoprovisoning file and loaded from the backup again, so another repetition of the provisioning would not have changed them again).... anyway it was still better than performing an hard reset (in that case, I fear I would have had to re-do all the configurations of all the three EXP38 (3x38=114 buttons... expanions modules buttons are not mentioned in our autoprivioning file, and I don't even know if it is possible to autoprovision them)...
Well, thinking about it now, that time I could have had a similar result by simply making any small change on that phone normal provisioning file (or "re-generate" it)... to have it restore the password specified in the provisioning at the price of overwriting a few user customized options...
(This post was last modified: 11-24-2012 12:40 AM by Mauro.)
11-24-2012 12:39 AM
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RE: default username/password not working after firmware upgrade - Mauro - 11-24-2012 12:39 AM

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