If the motors can be controlled to rotate through the Motors page of the configurator but the drone cannot be armed through the remote controller, you can refer to the following tutorial to troubleshoot the issue.
1. Check the arming switch
On the Modes page, verify if the arming channel on the remote controller is correctly configured. When the arming switch on the remote controller is activated, the joystick should be within the yellow zone.
When the arming switch on the remote controller is turned off, the joystick should be outside the yellow zone.
2. Check Arming Disable Flags
In Betaflight or the app, observe the prompts in the "Arming Disable Flags" section on the homepage.
For a comprehensive explanation of Arming Disable Flags, please refer to the official Betaflight website: https://betaflight.com/docs/wiki/guides/current/Arming-Sequence-And-Safety
Below are some common Arming Disable Flags and their meanings along with possible solutions:
(1) MSP
This flag appears when connected to the configurator or app. It disappears when disconnected and doesn't require attention.
(2) RXLOSS and RX_FAILSAFE
The flight controller hasn't received a signal from the receiver. Please check if the receiver settings are correct.
(3) THROTTLE
The throttle isn't at its lowest position. First, check if the throttle stick on the remote controller is at its lowest position. If the issue persists even after lowering it, refer to the following article to check if the receiver channel mapping is correctly configured:
How to adjust channel mapping on a receiver?
(4) ANGLE
The drone isn't leveled. Place the drone horizontally on the ground (under default settings, the drone should not tilt more than 25°).
(5) RPMFILTER
The RPM filtering (bidirectional Dshot) feature is enabled, but the ESCs are not providing RPM data to the flight controller. Firstly, power the ESCs using a battery as they may not function properly when only connected via USB. If the error persists even after supplying power with a battery, refer to the following article for setup instructions:
How to enable bidirectional dshot (by RPM filter) in Betaflight configurator?
(6) ARMSWITCH
The arming switch has been activated, but there are still other arming disabled flags present. Disarm the drone, address any other arming disable flags, and then attempt to arm the drone again.
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