Need to factory reset some T26, T28and T46 IP phones without admin password - Printable Version +- Yealink Forums (http://forum.yealink.com/forum) +-- Forum: IP Phone Series (/forumdisplay.php?fid=4) +--- Forum: Configuration (/forumdisplay.php?fid=24) +--- Thread: Need to factory reset some T26, T28and T46 IP phones without admin password (/showthread.php?tid=17373) |
Need to factory reset some T26, T28and T46 IP phones without admin password - SupCryp - 06-29-2016 05:14 PM Hello, One of our customers has been attacked. The attackers managed to place a few admin passwords and change the configuration so a long press on OK asks for the password. They tried admin/admin and admin/(empty password), all returns as incorrect passwords. They also tried to unplug the power cable, they kept the OK button pressed down while re-plugging in the power cable, same problem. So we are stuck for now. Any hint ? Thanks. RE: Need to factory reset some T26, T28and T46 IP phones without admin password - imabev - 07-05-2016 11:02 PM Pressing and holding the "ok" button for 10 seconds resets these phones to factory. It will ask "reset to factory?" - press the button for yes or ok. The only other reason why i think this may not work is that you are resetting to factory but its still getting the provisioning template from the server (with a different password). RE: Need to factory reset some T26, T28and T46 IP phones without admin password - SupCryp - 07-06-2016 06:13 PM Thank you, but no provisioning is used and the attacker managed to put a password PLUS he enabled the phone so it asks for the admin password after you press OK for ten seconds! |