Regarding remote controls that can learn, many say "can ONLY learn from IR original remote which is working well, please make sure that your original remote is an IR remote control and it is working well before place an order."
Of course it has to be IR and of course it would help a lot if it worked all the time, but why does it have to be an original remote, and not a universal?
They learn by shining the output of the first remote into the new remote.
In one case, I have a universal remote that has been assigned to my model device. It works fine. How could it be so different from the original remote that a learning remote could not learn from it? Plainly it uses the same frequency or encoding or it woudln't work.
I know they have "regions" for DVD's so by electonic/programming means you cannot play a DVD in the wrong region, so they could if they wanted have an accompanying code that differentiates an original remote from a universal remote, but why would they go to such trouble?
And who would implement it? Do the makers of original remotes accept that there are universal remotes** but want to make them slightly less valuable by not letting a learning remote learn from them?
Or would the makers of universal remotes or learning remotes put some limitation on them? Why? I don't see how it could increase sales.
And aren't they all made by the same companies anyhow?
**Don't they provide the codes so that universal remotes know the frequencies for all the various commands?