Master 5V2 FLASH THE FIRMWARE

Flash Firmware 【Local】

Download the firmware

betaflight_4.4.0_STM32F7X2_SPEEDYBEEF7V3_5e6581e4.hex

1. Open Betaflight Configurator.

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2.①Press the boot key ②Plug the USB in the FC . The BF recognize the FC in DFU mode. if your BF cannot recognize the DFU mode, please refer: https://docs.speedybee.cn/fpv/fc-flight-controller/flight-controller-faq/how-to-fix-blackbox-not-logging-or-empty-log-files.html

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3.Click "Update Firmware"

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4.Enable Expert Mode ,  choose FULL chip erase. choose Load Firmware[local],choose the firmware we download

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5.Click Flash Firmware

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