Hi Anghel!
I came across this having some trouble myself and thought I should reply in case you never figured it out/ in case it’s unclear for any future users. You’ll want to press [NO] then hold down the [DATA ENTRY] encoder for the parameter locks you want to erase while live recording. You also need to hold down the encoder long enough for the patterns to cycle through, like digimatt said above.
For any new people: for example, if I live record some tuning changes on the sample SRC page and I don’t like how they sound, all I need to do is re-enable live recording, hit the [NO] button, then push down the encoder for tuning. A message will pop up saying “Erase locks”, so you’ll know that it’s erasing the lock associated with that parameter.