Enable APPROTECT by nrfjprog seems not work (9160)

[Tim Chao]

I try to enable APPROTECT by nrfjprog but seems not work, I still can read the memory after device (PCA10090) reset.

Here is the commands I test to enable APPROTECT

$ nrfjprog --version
nrfjprog version: 10.22.1 external
JLinkARM.dll version: 7.80c
$
$ nrfjprog --deviceversion
960058665 - NRF9160_xxAA_REV2
$
$ nrfjprog --memrd 0x00FF8000
0x00FF8000: FFFFFFFF |....|
$ nrfjprog --memwr 0x00FF8000 --val 00000000
Parsing parameters.
Writing.
$ nrfjprog --memrd 0x00FF8000
0x00FF8000: FFFFFFFF |....|
$
$
$ nrfjprog --pinreset
Applying pin reset.
$
$ nrfjprog --memrd 0x00FF8000
0x00FF8000: FFFFFFFF |....|
$
$ nrfjprog --memrd 0x0
0x00000000: 20000BF8 |... |

Use --rbp ALL get same result, too.

$ nrfjprog --rbp ALL
Protected the device against read and debug. Only a --recover, --debugreset,
or --pinreset operations will work from now on.
$
$ nrfjprog --memrd 0x0
0x00000000: 20000BF8 |... |
$
$ nrfjprog --memrd 0x1000
0x00001000: 22300114 |..0"|

If I did something wrong?

[Håkon Alseth]

Hi,

 

We're looking into this internally.

Which operating system are you using?

 

Kind regards,

Håkon

[Tim Chao]

Hi,

Ubuntu 22.04.3 LTS (GNU/Linux 6.2.0-26-generic x86_64)

[Håkon Alseth]

Hi.

 

Thank you for sharing and my deepest apologies for the inconvenience this has caused.

I can confirm that I do see this issue on my side as well.

If you run an older version, for instance <=v10.18.1, it should work as intended.

 

I have notified the nrfjprog team about this issue and they are looking into the root-cause.

 

Kind regards,

Håkon

[Achim Kraus]

Is this solved?

My versions are

nrfjprog version: 10.23.2 external
JLinkARM.dll version: 7.94e

Ubuntu 22.04.4 LTS

[Håkon Alseth]

Hi,

 

This was addressed in v10.23.1 (https://www.nordicsemi.com/Products/Development-tools/nRF-Command-Line-Tools/Download):

 

Kind regards,

Håkon

[Achim Kraus]

Thanks!