Reset Yealink phone to factory settings (lost password)

T73/T74

Press and hold the OK key for 5 seconds

Then press OK on the screen to reset to factory settings

T53/T53W/T54W

Press and hold the OK key for 5 seconds

Then press OK on the screen to reset to factory settings

T57W

Press and hold the redial key for 5 seconds

Then press OK on the screen to reset to factory settings

T41P/T41S/T42S/T46G/T46S/T48G/T48S

Press and hold the redial key for 5 seconds

Then press OK on the screen to reset to factory settings

MP54/MP58

Press and hold * and # together for 5 seconds

Then press OK on the screen to reset to factory settings

AX83H/AX86R

Press and hold the center button in the middle of the cirlce for 10 seconds

Then press OK on the screen to reset to factory settings