Hello.
I have the garage opener in the title. I think it is the 1356M model, but not sure (I don't have the original documentation). I'm attaching pictures of the units to help identify it. It's an old unit, no doubt.
The handheld opener(s) stopped working. I can't put my finger on a specific trigger or a time it happened (about 4 months ago). The wall button works just fine (wired, so not really related).
I tried deleting all codes and reconnecting the handheld, but it didn't work.
There seems to be some difference between the manual I found and the instructions on the unit itself.
The manual says to click the learn button, release it, then hold the remote button until the light blinks. On the device, however, it says to hold both buttons until it blinks.
I tried pairing the original remote, a new generic one, and a new LiftMaster one... I think I'm doing something wrong (since I managed to program it before).
I can share more pictures if needed, or the manual I found; I just don't want to overload the post.
Thanks for any advice!