I recently purchased a blade cx and everything was going great till the other day. Everything is trimmed out, lipo charged fully, new batteries in the transmitter but when i give it full throttle it wont lift off the ground and spins to the left. The 4-in-1 unit will blink red and green (the manual says this is a crystal problem) Could this mean i need new crystals, or maybe a new lipo? I have never overcharged or discharged too much. Any thoughts on what is wrong? Thanks

[link=http://www.4-rc-helicopter.com/index.php?action=artikel&cat=10&id=59&artlang=en]Check this reference[/link] - you need to adjust the 4-IN-1

the crystal in the 4 in 1 might be loose. pull it out and re-install it again. this has happened to mine once