Mass erase not disable security

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Mass erase not disable security

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lyz
Contributor II

i configure FSEC register by follow figure:

lyz_0-1670207157572.png

lyz_5-1670208069902.png

 

example code as follow:

lyz_2-1670207557076.png

inside, 

lyz_3-1670207649072.png

mass erase enable, now, chip is secure. but now,

lyz_4-1670207761601.png

mass erase not disable security. option as follow:

lyz_6-1670208305649.png

button yes, not disable security.

unlock kinetis commander also disable security. 

please tell me why? Thanks

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1 Reply

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Robin_Shen
NXP TechSupport
NXP TechSupport

Hi lyz,

Have you tried the new version of J-Flash software? Did you select allow security when chose device?
Mass erase should be able to unsecure the chip.
Please read the value of MDM-AP status and control registers by refer to:https://community.nxp.com/t5/S32K/Unbricking-S32K146/m-p/937227
Please input connect command first.
You can also try program the chip after mass erase using the loadbin command.


Best Regards,
Robin
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