Learn and match does not find my remote control.: The IR frequency used by the original remote is not in the learneable frequency range of the RC9800i.
The RC9800i can only learn remote controls with a carrier frequency between 20 and 70 kHz and a dedicated 455 kHz B&O. This frequency range covers more then 99% of all remote controls.
In case your original remote uses another frequency, you can only use the database. You will need to use in this case the Select & Try option or the AutoScan option.