begginers error

[rattattatta]

Hello, im new inn this hobby, and i have two choppers that im having a bit of a problem with.
I have a blade mcpx and this problem: It suddenly startet to pitch aggresevly to the right, and now im not even able to make it hover. Maybe a broken component? Transmitter is Dx5e.

Second chopper is a twister 3d storm and this is the problem: i just bought it, and the tail rotor dosn't generate anny counter spinn. The radio is a standar twister r/c radio (not sure of the exact name)
Sorry for my english. Hope someone knows some tips

[Imzzaudae]

See
MCPX setup service and flying links for newbies
https://www.helifreak.com/showthread.php?t=506789

You will find a video on how to clean the servos.

This is likely the problem!

The Storm 3D is another issue all together.
Turn the head counter clockwise. Do the tail rotor blades rotate up from the bottom
towards the front ?

Are the tail rotor blades on the right way around?

Tail belt tight.

Next we need to address weather the tail gyro is working.

[rattattatta]

Thanks for the reply I got my storm 3D functioning propperly now (Just a radio setting), and I will look into the link and figure out the mcpx as well !

[rattattatta]

Cleaning the servos didn't work, think they might be broken

[rattattatta]

After cleaning the servos, still doesn't work. The left and right servo doesn't respond at all, probably broken.

[Imzzaudae]

Take at least a 10 power magnifying glass and look at the little white gears. If there is a speck of dirt in the gears the little motor cannot turn! Clean the gears if it's a dirt speck!

Also the gear teeth can easily get bent in a crash and stop the gears from meshing and bind the servo.
I have trimmed bent gear teeth with a sharp razor so they mesh but it's better to replace the gears. (EFLH1068)

Try it again.

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Plug the forward reverse servo into the right and left servo slot on the main board.
and see if it works. If it works the other servo is bad.

Replace the servo