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Old Apr 02, 2015, 06:09 PM
GamerEdie is offline
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KK 1.2.5 HC ESC Calibration; Motors spin up

Hi all.

Trying to calibrate my ESCs on a KK 2.1.5 HC.

Here's the thing: I'm doing it right, I'm pretty sure:

1) Turn on transmitter, move throttle to full
2) Hold down buttons 1 and 4;
3) While holding down buttons, plug quad into battery;
4) Programmer screen reads "Throttle pass-through";
5) Keep holding buttons....

At this point, I should hear a beep, but what happens is all four motors turn on at full tilt but not in a smooth way but a bit like they're pulsing. They do respond to the throttle being turned down.

I've also tried the "disconnect motor 1; plug in quad; hold down 1 and 4; plug in motor 1" method. Same result.

Bad FC?
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Old Apr 03, 2015, 10:00 PM
Oldgazer is offline
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United States, VA, Richmond
Joined Dec 2013
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Disconnect the RX channel 3 from the KK board.
Disconnect an ESC and plug it into the RX.
Disconnect 2 motor leads from the other ESCs (this will let you hear just the ESC you are calibrating).
Turn on the TX, put the throttle stick to HIGH.
Plug in the battery.

At the double beep, lower the throttle.
The ESC should give a confirmation beep.
SLOWLY raise the throttle just enough to get the motor to spin.
Lower the throttle and unplug the battery.

Rinse and repeat for the remaining ESCs.
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Old May 27, 2015, 12:38 PM
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Hi Oldgazer,

I have almost the same problem. I made a video of my problem:

S500 with Hobbyking KK2.1HC (1 min 32 sec)

Problems with the Hobbyking KK2.1HC Flight Control Board. The transmitter is a Futaba T6EX. The main problem is that everything is working, but the motors can't running. After many tries, nothing. I tried to press the button 1 and button 4 at Power ON, to calibrate the ESC-s but just get this text: "throttle pass through" and no beeping sound, what should be.

I tried what you write, but I can't understand. If I connect the ESC to the RX directly it spins. But after I connect back to the KK nothing happening. The Throttle doesn't work.

Please help me, I have been trying to fix this problem for hours..
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Old May 31, 2015, 10:55 AM
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Joined Oct 2014
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my first question to you about the kk board is what firmware is it flashed with .... some issues with the kk boards are firmware related..

would suggest flashing the board with the latest... stevies 1.19 or RC911s ++AIO rev 4

just my 2 cents.
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