Remote control not working brand new sony rm-lj301 remote

SOURCE: i have a brand new

You may need to recode the remote since you changed batteries, and the newly installed batteries are new, and installed correctly.

SOURCE: sony RM-Y180 remote control

Did you install the batteries correctly?
Some remotes (Universal) need to be re-programed when you install new batteries.
Go to remotefinder.rca.com/default.aspx?site=rca for proper codes.

SOURCE: TV remote RM-ED002 for main TV works fine except volume

I had the same problem with sony remot control RM-ED002, take remot control apart and clean inside with damp cloth and dry with kitchen towel, thats it now use it! ;-)
When i opened mine it was some kind of moisture under volume and channel buttons, cleaning and drying it helped.

SOURCE: my remote for the harmony 550 says welcome to

First I would check to see if any of your buttons are sticking. I have found that this is a common problem with the 550 remote. I really like this remote but if nothing works check your buttons to see if any are pressed under the plastic. This remote can only work one button at a time so if one is being pressed it will not work.

SOURCE: how can i open my sony rm-ed009 remote control

insert wide flat blade (such as a wide flat bladed screw driver) into seam along one side. Twist carefully until seam starts to prise apart - carry on until you hear the "crack" of the press-tabs coming apart and repeat along the the length of the seam until you can carefully pull it apart.