Wanted my over cigarette-format large transmitter replaced by a little.
Have "herumprobiert" the Teach for 15 minutes because the remote controls easy to copy settings could not be found. Have set back the same again and again after each unsuccessful Anlernversuch. (A button and B button simultaneously until blue LED flashes quickly, I could imagine, however, that this is not necessary. Only once reseten probably sufficient.)
Shortly before the resignation I had the idea while I held the key to be programmed down to the (really large) existing hand transmitter at a distance of 0.5 to 2cm wander ... Behold, now he has copied the settings immediately. Apparently sits the actual transmission part of the old transmitter not at the top, but rather in the middle. Now works properly and also the coverage is good. 20m straight line without obstacles are not a problem. He feels (unexpectedly) at very high quality.
The Teach requires patience, but then this little hand-held transmitter is really hit! The price is great!
-> Strong buy recommendation from my side!