Hi guys, my eachine 250 fell into a water filled trench. I cleaned it, dried it, after six days I turned it on the problem is that it has a constant beep and after a couple of flights it shut off. I noticed that a couple of connectors on the control board were rusted so I cleaned it with electrical cleaned and put some WD 40. I let dry but the problem persists i suppose the the control board is bad. Would some know where I can buy one.
