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Hello evryone, i want to ask why RDP byte of my STM32F407 MCU can't be changed from level 1 down level 0 by using STM32 cube programmer? Thanks you everyone.

HHIEU.1
Associate

‎2021-06-18 3:24 AM

 
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Amel NASRI
ST Employee

‎2021-06-18 5:49 AM

Hi @HHIEU.1​ ,

Is there any error message displayed by STM32CubeProgrammer while trying to change the option bytes?

Do you face the same issue if you try with STLink Utility?

-Amel

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