M19 Operation Guidelines - Change Master Code

[@enjelcubol5407]

I had the same issue with the Master Code not being able to be reset to a new one. I tried a dozen times and kept getting the flashing red. WHAT DID HELP: USING THE PHYSICAL KEY TO UNLOCK IT... Then proceeding with the instructions in the video. I kept failing with my new personal master code of only 4 digits... But entering a new 6 digit code worked! Hope this helps anyone with the red flashing errors.

[@dougrozander5087]

i bought one of these from amazon and it refused to let me change the master code

[@dominicthan7424]

I have the same issue, can’t change master code. This needs to return!

[@vvdd903]

same issue. not able to change master code. flashes red. i follow exact instruction.

[@kokuju9766]

It’s busted it only flashes red

[@vvdd903]

Pressing the set button once and follow the same instruction worked for me. don’t hold the set bottun

[@chaparro644]

como le hago

[@YardProd]

Mine too just keeps flashing Red after pushing 4 and unlock key. Have done it with door open, door closed, faster, slower....same result can't change master code.

[@jrozco9225]

My M19 just flashes red after I input the master code and press the unlock button, my locks basically useless if any thief can just input 123456 unlock.

[@rlauzon1948]

It only flashes RED on any changes I want to do.