help me!!!
Firstly, I’ve installed a Yale YDM 4109 and foggoten the master code. I had removed the batteries and then remove the inside escutcheon but cannot find the reset button. And the second problem is when I touch the keypad with my palm, the door doesn’t lock.
Any help would be great. Thanks!
See the attached from the manual for reset button location and instructions.
Does the deadbolt react at all when touching the screen? Have you replaced the batteries?
Hi Warren,
Thank you for your instruction. I had followed your instruction, but it doesn’t work. And the manual doesn’t attach the reset button location. These are the manual of Yale YDM 4109 and the picture of the inside lock I photographed, so please watch it and help me again.
Thanks so much.
Yale YDM 4109
This is actually biometric mortise cylinder lock which is not Alarm.com compatible and not one we sell, support, or are familiar with unfortunately. In fact it appears this model is largely sold in Asia.
You’ll want to contact your vendor where the lock was purchased for any instructions on a reset.
Oh, thank you very much, Jason. You’re right. I am from Vietnam, but why do you know this model is sold in Asia?
why do you know this model is sold in Asia?
All support documentation and retailers appear to be from Asia. Unfortunately we would not be able to assist with this product. 
No problem. Thanks for your help.
By the way, I saw that Gateman F50 has the same design and usage as Yale YDR 4110 but the prices of them are different, are they the same producer? And there’s a reset button in the front body of Yale lock, what is it for?
hey Jason, I’ve just called for after-sale service, he said that he couldn’t reset the lock to the factory default. and he had to send my lock to the factory to reset T-T.
This is an Alarm.com service and equipment technical support forum. We do not have familiarity with nor support the products being referred to above. Unfortunately we cannot assist. Please contact the vendors of these products with any questions.
Hi Sharon, I have the same lock and the same problem (Couldn’t factory reset). Did you get your lock factory reset from the company? If yes please let me know how? Thanks in advance.
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