Unable to connect to STM32L452REY6

[Ashu123]

Hello Team,

We are facing an issue while programming our MCU from STM32Cube Programmer.
 The error we are having is shared below:

18:50:44 : ST-LINK SN : 36FF70065648343856411043
18:50:44 : ST-LINK FW : V2J43S7
18:50:44 : Board : --
18:50:44 : Voltage : 3.25V
18:50:44 : Error: No STM32 target found!

Out of 100, 30 boards are unable to connect with STM32CubeProgrammer.
MCU we are using is STM32L452REY6.

[Amel NASRI]

Hi @Ashu123 ,

If you still face an issue to connect your boards with STM32CubeProgrammer, I suggest the following:

• try to connect with the mode set to "Under Reset"
• perform a firmware upgrade.

You find some more recommendations in the article How can I connect to my STM32 evaluation board using STM32CubeProgrammer.

-Amel