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I cannot flash bootloader or any firmware to 2.3 #154

@wanderlust-vlad

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@wanderlust-vlad

I wanted to move my setup (Spider 2.3 and Paspberry Pi Zero 2W) from USB connection to UART.
Reconfiguration of Pi according to the FYSETC documentation was easy, but when I tried to reflash MCU - there trouble came.
First I've tried to do it via sdcard - name of the file changed, led blinked...but host could not connect to the MCU.
Then I tried to reflash via DFU (with STM32Cube programmer) - flashing was done but verification showed up some errors.
Bootloader is gone, MCU is not detected by ls /dev/serial/by-id/*
I tried to flash it via DFU from my Pi, but dfu-util --list shows this:
dfu-util: Cannot open DFU device 0483:df11 found on devnum 3 (LIBUSB_ERROR_ACCESS)

When I try to flash bootloader (taken from this Github), I receive the same verification errors as during flashing the firmware.
image

How can I finally flash my MCU?

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