My EX4 fell down due to a link drop and a resulting wall strike. In a brief evaluation, the camera broke down. I replaced the camera board carefully but something more is wrong (both red LEDs still blink). Therefore I can't unfortunately tell anything else so my opinion is neutral. There is a lack of diagnose info. A pro is the seller's agility to send de parcel, something really fast.
unable to proof as my main board is not working