The summary: 1.) Disconnect your board from usb or other voltage supply.

2.) Connect the BOOT0 Pin with High (3V).

3.) Plugin the usb cable again.

4.) Download a write programm to the board which doesn’t configure the PA11 and PA12 Pins.

5.) Disconnect the usb again.

6.) Disconnect the BOOT0 from High (3V) again.

7.) Plugin the USB again and see if the board works normal again.

8.) Please like and subscribe for more videos

Error in launch sequence Failed to start GDB server Error in initializing ST-LINK device.

Reason: No device found on target

Target no device Found

STM32 ST-LINK Utility

CubeIDE Problem Occured

Stlink device bulunamadı hatası