For those of you who are seeing the four red lights and cannot power up your drone and are using aftermarket batteries knock offs they will not work with the new firmware update so get a OEM dji battery and your problem will be solved
I have seen reviews on non DJI batteries that work with the newest firmware. Not all non DJI batteries will work, but some will. Some are guaranteed to work in writing.
banggood has some with over 50 reviews and all positive that they work with the latest firmware.
So your statement is not entirely true.