Need help in erasing the device: STM32H735IGK3

Saista · ‎2026-04-16

Hi
I need help in erasing the device: STM32H735IGK3, This device is getting erased only till sector 0.
There were total 8 sectors.
I am following the steps given in Reference manual for erase operation but still it didn't work.
Could you please suggest something to resolve this issue with Erase?
Or please point out the reason which is throwing this issue.
Thanks!
Saista

KDJEM.1 · ‎2026-04-16

Hello @Saista and welcome to the community;

Could you please try to test with an available example STM32CubeH7/Projects/STM32H735G-DK/Examples/FLASH/FLASH_EraseProgram at master · STMicroelectronics/STM32CubeH7 · GitHub with NbOfSectors = 8

I hope this help you.

Thank you.

Kaouthar

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mƎALLEm · ‎2026-04-16

Hello,

You need also to tell how you need to erase the flash? in your code or using the tools.

How to write your question to maximize your chances to find a solution

If you need to erase the flash in your application, that's what @KDJEM.1 suggested.

If you need to erase the flash with tools, please use STM32CubeProgrammer and this button for full flash erase:

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