Most of the time, people interested in buying a drone look at the prices charged by the manufacturer or accredited re-sellers first. Then when they see a 'bargain' (compared to the costs they have already looked at) they like the idea of getting...
I'm sure this will be here on the site already somewhere, but my searches didn't find it, so copying here. Much more detail on those battery error code lights than in the manual !
(Graphic courtesy of Drone DJ)
From a Drone savy member of the forum named GadgetGuy from an post long ago.......This just may be whats happening
""You have to be inside the unlock when you launch, because the area outside the unlock automatically becomes an NFZ. If you...
this has happen to me with an Autel evo 2 pro drone ,since most batteries are SMART batteries they have firmware in them and can go corrupt
**** happens