Manta 4 channel rc quad-copter will not calibrate properly

Push the "Fine-tune Strafe left/right" (located under the right joystick) towards the right and hold it in postion, then turn the controler ON.

Maybe battery is not accepting charge. I would try using a new battery.

If it lifts steadily but has no height check the battery may be at the end of its life.

HTH

You can get a new USB charge lead for a few pounds from your supplier or Ebay.

the instructions that came with the toy are wrong. you have to turn on the remote first, then plug in the quad. Push left throttle up, then down. It should work now.

Try to operate while holding it... Or have someone else holding it, if you can feel where it's want to go while sticks are in neutral, trim it the opposit way. Good lock Have you look at gyro gain? Try to lower it as too fast makes it instable.

Turn on remote control first then heli

Hi. I have the same issue.
RC has brand new batteries, switches on and see to work properly.
Quad is charged. But LED will not blink.
RC and Quad do not see to connect.
RC lights keeps blinking.

What happened ? As far as I know nothing unsual. I bumbed the quad slightly on the roof of the living room where I was fligh it. Nothing unsual. I landed it a bit roughly. Then it stopped responding. I assumed charge was empty but when I charged , nothing happened.

Turn on the remote control first then the heli the instructions are wrong
(I have the heli)

Try this one. http://www.skytechhelicopter.com/BrookStone-796083p-17-Tail-Motor-for-796083p-Stunt-Copter-RC-Helicopter