Well, yes, I think its pretty much understood that manufacturers rarely manufacture 100% of the components that go into their products. OEM however, should mean that it meets the manufacturers specifications, and if it doesn't, the manufacturer should take responsibility for the consequences. They would then take it up with their supplier.Not in my book.
Taken literally it means that the manufacturer supplies parts to DJI and possibly, in this case even propellers. It DOES NOT mean/guarantee that the part supplied is made to DJI standards.
That's pretty high on the geek scale there. I'm not there yet.Attached are the CsvView plots for motorRPM, drone pitch and roll for a mini 3 that had a whoopsie. I think it is safe to assume that ther RPM need to be multiplied by 10.