Error unable to read device id from rom table

Forum|Forum|2 months ago
March 5, 2026
2 replies
251 views

Hello every people.

I am new member. We have issue . We have one computer ( PC ) , it is working normaly, but when we setup for other devices , SMT32cube programmer not working. Plz caution , one PC working normaly, we received from custommer. New device although we setting , they are not working.

They show error :

Error ST-LINK error DEV_CONNECT_ERR

Plz help us.

Thank very much

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STM32CubeProgrammer

Best answer by VietNam_2026

Thank you. after many attempts. we fixed our issue. Maybe our document is wrong. My document

Thank you your knowledge, I have been learning very much from it.

V

VietNam_2026Author

Associate

Peter BENSCH

Technical Moderator

Welcome @VietNam_2026, to the community!

Your screenshot shows a very old firmware version V2J29S7 for your ST-LINK/V2, which suggests that you are using a clone. Please check this again. You are welcome to insert a photo of the front and back of the ST-LINK using the camera button.

Regards
/Peter

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V

VietNam_2026Author

Associate

Thank you for your knowledge, under picture is device, we are using it.

\

Peter BENSCH

Technical Moderator

That looks like an original ST-LINK/V2. Please start the firmware upgrade with the current STM32CubeProgrammer (light blue button in the middle right). After that, you should have the firmware version V2J46M33 or V2J47M34; otherwise, there is something wrong with your ST-LINK.

In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

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