Anyone experiencing this? No drone is not on nor the battery, no it's not after flying, newest firmware updated, all batteries do it. Fan stays on the entire time even after battery fully charged.
I have read multiple posts from this Google search that indicated that the fan would momentarily turn ON when it was first plugged in, but not run continuously.
Others have said it's a circuit board noise? I'm not sure about that one. ?
You might be able to do factory reset or something with the DJI assistant and a PC to flash the firmware?
I'm not sure how it's accomplished but others here have more experience with the software side.
Mine does not do that. Totally silent when charging. How hot was the ambient temperature when you were charging? Using a "regular" Samsung USB charger (which charges my Samsung phone at a high rate), my Spark is totally silent. I've got all the latest firmware / software. This is what it sounds like on mine, during the whole charge cycle. My house is at 70 degrees F. Spark Charge Video The noise you hear is the TV in the other room. I had to turn off my computer, as the fan was making too much noise to hear the "silence".