STM32F401VBH3 can not identify the communication IC and burner communication is not successful how to solve the problem

[chanyang]

[Roger SHIVELY]

Hello @chanyang ,

This post has been escalated to the ST Online Support Team for additional assistance.

Should anyone else want to verify a products authenticity, identity or get a rough estimate of the manufacture date, please submit your request directly to the ST Online Support Team at https://my.st.com/ols

Just be sure to submit a photo of the products top marking when you submit your case.

Regards,

Roger

[Tesla DeLorean]

TBH I'm not finding the presentation compelling. If you put devices in RDP 1, or they arrive in that mode, probably not going to be readable second go around.

ST-LINK Utilities have been obsolete for years, and not seeing ANY of the connectivity data.

These things drawing excessive current? Stand up to X-Ray analysis showing a different die, or bond-out, or board level failings?