Hello! I recently purchased a (used) FC40 without battery, so i had to buy a new one. The connectors inside the aircraft needed soldering because some of the insulation on one of the wires to the battery was gone. I tested the aircraft with a battery, it connected successfully to the controller, and i managed to start the propellers before the remote LED on the front of the FC40 started to blink. I guess it was because lack of GPS-calibration. But i found out the the aircraft was fully working. So i changed the battery wire, put the drone back together, but when i turned on the RC and then the aircraft, the remote LED only blink orange. I have tried to pair it with the aircraft over and over, but nothing happens. The red/orange blinking light inside the drone lights up red when the RC is not turned on, and blink orange and red when i press the button to pair it. And of corse the LED turns off when i turn on the RC. In the manual it says when the remote LED blink orange, the transmitter signal is lost. Can someone help!? -Freddy.