Can't boot into Bootloader mode

WeActStudio / BluePill-Plus

STM32F103C8T6/GD32F303CCT6 Core Board Doc

GNU General Public License v3.0

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Can't boot into Bootloader mode #13

Open DansDesigns opened 2 years ago

DansDesigns commented 2 years ago

When I plug in the STM32f103 board into the USB, Windows does not recognize the device. I have the right drivers installed and it has been working but suddenly stopped. I tried to reupload the STM32duino bootloader via the STM32 Programmer and the ST-Link but when I press KEY and NRST, nothing happens - just continues to show the power led?

Can anyone help?

DansDesigns commented 2 years ago

I solved the issue by erasing the first sector in flash memory, re-downloaded the stm32duino bootloader, flashed it via st-link and stm32cubeprogrammer with "Verify Programming", "Run After Programming", " Full Chip Erase" and "Download File" selected..