I cannot flash bootloader or any firmware to 2.3

[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.

How can I finally flash my MCU?

[JD13xs]

Did you set the jumpers for DFU mode? I find DFU mode easier.

…

On Thu, Apr 4, 2024, 2:53 PM wanderlust-vlad ***@***.***> wrote: 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.png (view on web) <https://github.com/FYSETC/FYSETC-SPIDER/assets/128132691/e7383403-434d-4d40-8fb2-b2c4df453e42> How can I finally flash my MCU? — Reply to this email directly, view it on GitHub <#154>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AQ3HKG57VVGFSF36V7BJI2LY3WOSDAVCNFSM6AAAAABFX2JA22VHI2DSMVQWIX3LMV43ASLTON2WKOZSGIZDMMRYHE4DEMY> . You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>