Im trying to flash first program into STM32U575ZIT. For some reason I m getting the next error: stm32 failed to start GDB server error in initializing st-link device REASON:no device found . I updated the ST-LINK and still not working.

[why 3.3v when u can 5000V]

tried to update the ST-LINK with the cubeIDE after that with the ST-LINK TOOL and at the end I tried to install the latest driver with device manager .

the STM32U575ZIT is pack fresh .

(nucleo)

[TDK]

Is this a nucleo board?

Does STM32CubeProgrammer connect?

[why 3.3v when u can 5000V]

yes and yes

[MM..1]

Show schematics how you connect your ST-LINK

[why 3.3v when u can 5000V]

yes, and yes....

[why 3.3v when u can 5000V]

A picture of how I connected it

[why 3.3v when u can 5000V]

for some reason led 1 to 3 are blinking in order from 1 to 3

[TDK]

The debug tools are not super consistent. If STM32CubeProgrammer works, your hardware connection is fine.

Power cycle the board and try again. Try rebooting your system. Yes I know it's annoying.

There may be something STM32U5 specific here, but I also see odd behavior like this with other families occasionally in STM32CubeIDE.

[MM..1]

Version CubeIDE ? GDBserver version? Try switch to othet debuger in IDE config, setup support for debug low power modes , connect under reset ...

[MM..1]

boards is released with blinky project loaded

And for normal use with stlink power connect isnt necesary

Too your connected wires if use SWDIO pins can block Stlink to work.