Hi, new here and I wish I wasn't posting this. Only had my I1 for a few days - lots of test flights, and no problems. Yesterday at a local park - did all the pre-flight checks, hit the takeoff btn, it lifts off and hovers, then no response from the RC. Quickly hit the land btn. It started to roll to the right, lost power and landed. Checked everything again, bit shaken. tried again and everything worked fine. This morning same thing happened again - took off, hovered then no RC control, started to drift, lost power dropped to ground and slid down the bank into the river. Retrieved it, but wont turn on now. Any suggestions would be great.