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How "Disable Read Out Protection" ?

Question asked by musatoff.constantine on Oct 3, 2012
Latest reply on Apr 27, 2017 by Khairnar.Dhananajay
I have demoboard with STM32F417 and ST-Link v2. After some software fault, read out protection was activated. STlink utility print 
20:07:57 : Connected via SWD.
20:07:57 : Device ID:0x411 
20:07:57 : Device family :STM32F4xx
20:07:57 : Cannot read memory!
                  Disable Read Out Protection and retry.


What I mast to do to disable read out protection. I can't to do full erase of chip with the same error:
ST-LINK_CLI.exe -c SWD UR -OB RDP=0 WRP=0xFFFFFFFF -ME
STM32 ST-LINK CLI v1.3.0
STM32 ST-LINK Command Line Interface


Connected via SWD.
Device ID:0x411 
Device family :STM32F4xx


Updating option bytes...
Could not update the option bytes!


Full chip erase...
Read out protection is activated



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