@Muthamizh wrote:
i don't find any stldr file for my stm32f429i series.
How? any loader? already provided you one.
Also in the CubeProgrammer, this is the list of all loader available for this board. And the one in the red rectangle corresponds to the NOR Flash loader.

I used this Loader with STM32F429-EVAL board and it works well.
I don't think the error you are showing has a relation with the loader.
Could you please share your project (in PV if you don't want to share it in public) so I can do a test?
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