FV-31 Cypher Wiki

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Revision as of 13:44, 7 August 2019 by FlexTeam (Talk | contribs) (FV-31 Cypher)

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Welcome to the Flex Innovations - FV-31 Cypher Wiki

FV-31 Cypher

Aircraft Info

Manuals and Documents

Product Information


CAUTION: You must disconnect all motors, or securely restrain your Cypher when making and/or testing configuration changes

Configuration Tools for Betaflight

Use a Configuration Tool to Set or Reset the Angle/Six Axis Level

NOTE: The wing leveling six axis mode is named ANGLE mode in Betaflight lingo.
  • Place your Cypher on a level surface. Check that wings are level. You may want to shim the nosewheel up 2-5mm to set a more positive angle. (The angle relates to trim speed and can be set to taste).
  • Connect to your configuration tool and navigate to the Setup page.
  • With the Cypher level per above, click the Calibrate Accelerometer button.
  • Note the settings are now zeroed out. You are finished. Disconnect.

Troubleshoot ARMING Difficulties

  • Click this link to see notes on trouble shooting including a complete list of Prevention Flag Meanings
  • Review notes at link above for Betaflight 3.5
  • Note your Cypher's Arming Disable Flags using the Betaflight Configurator on the Setup page in the Info box at right.
  • Some common (beep code) Examples:
    • (2) FAILSAFE - Rx signal indicates Failsafe
    • (3) RXLOSS - No valid Rx signal found - Check Tx and Rx on and bound and connected
    • (7) THROTTLE - Throttle too high - lower throttle
    • (8) ANGLE - Cypher must be level within 25 degrees to arm
    • (13) CLI - CLI mode is active - Exit CLI and/or Disconnect configurator
    • (17) MSP - Connected to configurator - Disconnect

Experimenter and Tech Corner

Entire Betaflight Wiki here for reference

  • Click this link for the Betaflight Wiki
  • Note that FV-31 Cypher code is based on Betaflight version 3.5. It is unique code, and it is not possible to build it with the 'generic source code'.
  • Note that the FLEXF3 Board/PCBA is hardware specifically developed by Flex Innovations for the FV-31 Cypher.

Enabling Telemetry

Optional Electronic Adjustments

Power and Accessory Notes



CAUTION: You must disconnect all motors, or securely restrain your Cypher when making and/or testing configuration changes