Locked STM32 F4 Disc. by Read Out Protection Level 1

[Daniel Kusche]

Posted on January 18, 2018 at 09:45

Good morning,

I got an issue with the ROP-Level (read out protection) and therefore the MC is locked for further flash – actions. The power supply has been interrupted during an flash – action. I assume that this is the reason why the ROP level has been set to 1.

However, I checked the common sources and pages for troubleshooting / handling for that issue. I tried the ST-Link utility tool and the J-Link command line / J-Link unlock tool.

I’m not able to reset the ROP level to 0, neither with the on or the other tool. Please see the attached screenshots (two for J-Link and 5 for ST-Link).

May you can give me a few hints to fix that issue?

Kind Regards, Kusche

[Daniel Kusche]

Posted on February 06, 2018 at 11:04

Kindly reminder

[AvaTar]

Posted on February 06, 2018 at 11:27

Tried a mass erase within the ST-Link tool ?

Didn't check recently, but former versions had such a menu point.

Or the system bootloader via the Boot0/Boot1 pin trick ?