error: Device is secure. Erase to unsecure

Navina — Wed, 26 Nov 2025 05:06:51 GMT

Hello Team,

I was testing A/B partitioning on the S32K144 using the A12323 document.

First, I flashed the S32K144_Memory_Partition project into RAM.
Then, I flashed the S32K144_FOTA_Gateway_example into Flash.

On the same board, I tried flashing a CAN application. The first time it worked successfully.
However, when I attempted to flash the same application a second time, it failed with the error: “Device is secure. Erase to unsecure.”

Now I am not able to flash anything.

Thanks.

Re: error: Device is secure. Erase to unsecure

lukaszadrapa — Thu, 27 Nov 2025 09:01:42 GMT

Hi @Navina

As I wrote in previous thread:

Do you have Segger J-Link probe or Lauterbach debugger to read MDM-AP? Unfortunately that's not possible with Pemicro.

There's a rare scenario when the device can be locked. Please check this thread:

https://community.nxp.com/t5/S32K/Unbricking-S32K146/m-p/937227

To confirm it, it's necessary to read MDM-AP.

S32Kのトピックerror: Device is secure. Erase to unsecure

error: Device is secure. Erase to unsecure

Re: error: Device is secure. Erase to unsecure