Pika Manuals- 8 - Pika2、 Install Betaflight- Betaflight is an open source flight control procedures, specific introduction can refer to website:https://github.com/betaflight- for the firmware required by PIka, please click the following link to download the firmwarename: betaflight_3.2.5_OMNIBUSF4SD.hexn Latest version of firmware download website:https://github.com/betaflight/betaflight/releasesn Be sure to download the betaflight_3.2.5_OMNIBUSF4SD.hex version. (You can select the latest version)- Install driver and ground station Betaflightn https://github.com/betaflight/betaflight/wiki/Installing-Betaflightn Ground station Betaflight - Configurator download address (you need to install Chrome browser) :u https://chrome.google.com/webstore/detail/betaflight-configurator/kdaghagfopacdngbohiknlhcocjccjao/reviews3、 Install the Receiver- If you choose the BNF version, you can Bind use the frequency and do not need to install the receiver again.- if you choose the PNP version, you will need to install the receiver on your own, Please click the following steps toconnect (such as the Frsky r-xsr receiver) :n note:must dismantle propeller for debugging.n Open the screws of the PIka, open the top vtx board, and you can see the flight control board on the secondfloor.n The flight control board will have three welding locations: 5V,GND,S.Bus, Welding in the corresponding positionn Finally, fix the receiver and lock the corresponding screwn As shown in the picture below: