Connection failed when trying to connect STM32L053R6T6 using STM32 ST-LINK Utility Version 4.50 as a latest version.

When we connect STM32L053R6T6 using STM32 ST-LINK Utility Version 4.20, it works normally.

But when trying to connect it using STM32 ST-LINK Utility Version 4.50 as a latest version, it fails.

Please refer to the attached files.

Please let us know how to solve this issue asap.

Thanks.

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Guru

Try backing off the connection speed on CM0 devices

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