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I have a hardware in which I am using the 144 pin STM32F407ZGT6 and it workings fine. I upgraded my MCU to STM32F767ZGT6 and I am not able to program the IC. Read protection is enabled and it is not getting removed.


The MCU is brand new. I have tried multiple hardware, multiple MCU ICs, multiple programmers. I have upgraded my programmer and also tried the STM32CubeProgrammer also. The MCU is not getting hot and current consumption is nominal. On the same hardware I am able to de-slder the 767 and solder the 407, and the 407 works. I have tried to connect PDR_ON to ground, still the same issue. I have attached the screen-shots of ST-LINK Utility and my schematic for the controller. Please help me out.