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Byme-A FAQ


Q1: When A560(+Byme A) is powered on, why the servos don't move with joysticks toggled?

A: 1) Make sure the biding is done and the signal output of receiver is SBUS or PPM.Please refer to the user manual for the detailed steps.

2) Level the aircraft on the ground and power it on and the transmitter. The aircraft will do auto checking, which takes about 1 minute. When it's done with success, a music tone from ESC will be heard.Then try operating the transmitter to see if servos move.


Q2: How many flight modes are there for Byme-A?

A: There are totally 5 modes: Vertical, Angle/Stabilize, Horizon/Acro, Rate/Gyro and Manual. They are with gyro assistance except the Manual Mode. The default channels to change flight modes are CH5 and CH7 of transmitter.


Q3: Why the ailerons move automatically without joysticks toggled after the aircraft is powered on?

A: 1) Check if Byme-A is well fixed.

2) Check if the flight mode is non-manual one. Because when at Vertical/Angle/Horizon/Rate Mode, gyro assists to stabilize. If the aircrafte is not well leveled, ailerons/servos will automatically adjust certain angles to balance.

3) Make sure the Byme-A head(arrow) points to the aircraft head. Byme-A should be fixed horizontally on the fuselage instead of vertically.

4) Recalibrate the aircraft: Level the aircraft and switch the flight mode as Manual. Pull both joysticks of the transmitter to outside corners for 3-5s until the green indicator on Byme-A flashes once.  


Q4: Why the motors move automatically when the aircraft is powered on even the throttle joystick remains at the lowest position?

A: Make sure the throttle phase of the transmitter is set as reverse.


Q5: All servos move accordingly to correct channels with joysticks toggled when at Manual Mode. But if the flight mode is changed as Vertical/Angle/Horizon/Rate Mode, why are all channels reversed?

A:  As gyro doesn't function at Manual Mode, all channels/servos work correctly to the transmitter joysticks means the transmitter functions well. But if they are reversed when other flight modes are changed to, phases on flight controller also need to be set, following below steps

Note Make sure attitude calibration is done before servo phase calibration. Because flight controller will auto identify NOR/REV and modify gyro direction when doing attitude calibration.

Neither the always-on nor off green led means reversed phase. Only toggling joysticks can check if the corresponding servo phases are reversed.


Q6: The transmitter functions well when calibrating servo phases. That is all aircraft servos work correspondingly to the transmitter joysticks. But servos don't move when calibrating flight controller phases. Why is that?

A: It's because of the Manual Mode. When calibrating flight controller phases, please switch to Angle/Stabilize Mode.


Q7: After calibration done, all aileron surfaces aligned with Manual Mode. But all surfaces move a bit when switching to other flight modes. Why is that?

A: Please do the calibration with Manual Mode and all surfaces aligned means calibration is done successfully. Because there's gyro assisting in other flight modes and it will modify the aircraft angle to increase balance. Therefore, deviation is normal.


Q8: When A560+Byme-A is thrown to take off, the aircraft head seems heading to the ground and the throttle needs to pull immediately. Why is that?

A: It's because of the calibration angle. Please calibrate the aircraft with a certain angle (approx. 20°), which is easier to keep flight altittude with Angle/Stabilize Mode. Attitude calibration only needs to be done once and Byme-A will record.

In order to calibrate, please pull both joysticks of the transmitter to outside corners for at least 3 seconds. When the green indicator on Byme-A flashes once means calibration is done.