"Access protection is enabled" on nrf52 DK

RE: "Access protection is enabled" on nrf52 DK

Mark G. — Fri, 16 May 2025 19:20:03 GMT

Hi Maria,

I have the same issue now.

/nrfutil device recover
❌ Failed to recover 1050396622, Timed out waiting for response from worker.
Error: One or more recover tasks failed:
* 1050396622: Timed out waiting for response from worker. (Generic)

nrfjprog --recover
Recovering device. This operation might take 30s.
[error] [ Client] - Encountered error -21: Command recover executed for 30153 milliseconds with result -21
[error] [ Worker] - Encountered error while performing post-recover cleanup. -90: Access protection is enabled, can't read device version.
ERROR: Recover failed. Please make sure that the correct device family is given
ERROR: and try again.
NOTE: For additional output, try running again with logging enabled (--log).
NOTE: Any generated log error messages will be displayed.

Any other ideas?

RE: "Access protection is enabled" on nrf52 DK

sjmerel — Thu, 08 Jun 2023 16:14:31 GMT

--eraseall also failed with the same error. However, "nrfutil device recover" worked and I am now able to flash the devkit. thanks!

RE: "Access protection is enabled" on nrf52 DK

Maria Gilje — Thu, 08 Jun 2023 16:04:58 GMT

Hello,

[quote user="sjmerel"]in case it helps, the label on the board says:[/quote]

This helps us, thank you.

Does the --eraseall command work for you?
If not, please follow Joakim's instructions from this post and upload the log to your next reply here.

Best regards,

Maria

RE: "Access protection is enabled" on nrf52 DK

sjmerel — Wed, 07 Jun 2023 15:26:49 GMT

in case it helps, the label on the board says:

PCA10040

3.0.0

2023.10

1050308588

RE: "Access protection is enabled" on nrf52 DK

Maria Gilje — Wed, 07 Jun 2023 12:17:17 GMT

Hello,

I have been assigned to your case, and will take a look at it as soon as I can. Thank you for your patience.

Best regards,

Maria