Battery Problem/Needs Refresh

Having a problem with my Mavic 2 Zoom battery. Its been sitting for a while. I contacted DJI a little while back. They had me do a series of hooking up the charger and holding the power button down. (A few other sequences) I lost the page to do this. Does anyone know how to do this??

There is no magic sequence to revive an over-discharged battery. If the battery does not charge when hooked up to a known working battery charger, then it’s time to replace it.