nRF54L15DK is not working after nrfjprog -e

[Sunil vignesh]

Hi, I used nrfjprog -e to the nRF54L15DK and problem is 

in Programmer

20:36:52.569	Initialising the bundled nrfutil device
20:36:52.627	Required component nrf-udev is not detected. Install it from https://github.com/NordicSemiconductor/nrf-udev and restart the application
20:36:52.691	Using the bundled core version for nrfutil device: 8.0.0
20:36:52.734	Getting serial port options from the persistent store for 001057767813.pc-nrfconnect-programmer
20:36:52.734	Getting serial port options from the persistent store for 000069408497.pc-nrfconnect-programmer
20:36:52.734	Getting serial port options from the persistent store for A50285BI.pc-nrfconnect-programmer
20:36:52.735	Device connected with the serial number 001057767813
20:36:52.736	Device connected with the serial number 000069408497
20:36:52.736	Device connected with the serial number A50285BI
20:36:52.788	Using nrfutil-device version: 2.12.3
20:36:52.788	Using nrf-device-lib version: 0.17.81
20:36:52.788	Using nrf-probe version: 0.40.1
20:36:52.788	Using JLink version: JLink_V8.18
20:36:55.409	Selecting device with the serial number 001057767813
20:37:03.090	Error: Failed with exit code 1. One or more device info tasks failed: * 1057767813: Emulator error: Failed to open connection (Generic) Message: Operation device-info failed, Emulator error: Failed to open connection.
20:37:03.268	Reading readback protection status for Application core
20:37:03.269	Failed "reading readback protection status for application core". Error: code: 1, description: Generic, message: Batch task protection-get failed, Emulator error: Failed to open connection
20:37:03.308	Error: Failed with exit code 1. One or more batch tasks failed: * 1057767813: Emulator error: Failed to open connection (Generic) Message: Batch task protection-get failed, Emulator error: Failed to open connection.
20:37:09.738	Error: Failed with exit code 1. One or more device info tasks failed: * 1057767813: Timed out waiting for response from worker. (Generic) Message: Operation device-info failed, Timed out waiting for response from worker.
20:37:09.738	Selected device with the serial number 001057767813
20:37:09.738	Using nrfutil device to communicate with target via JLink
20:37:12.707	Reading readback protection status for Application core
20:37:12.707	Failed "reading readback protection status for application core". Error: code: 1, description: Generic, message: Batch task protection-get failed, Emulator error: Failed to open connection
20:37:12.760	Error: Failed with exit code 1. One or more batch tasks failed: * 1057767813: Emulator error: Failed to open connection (Generic) Message: Batch task protection-get failed, Emulator error: Failed to open connection.
20:37:12.760	Error: Failed with exit code 1. One or more batch tasks failed: * 1057767813: Emulator error: Failed to open connection (Generic) Message: Batch task protection-get failed, Emulator error: Failed to open connection.
20:37:12.847	Device connected with the serial number 001057767813
20:37:13.808	Getting serial port options from the persistent store for 001057767813.pc-nrfconnect-programmer
20:37:13.809	Device connected with the serial number 001057767813
20:37:13.838	Getting serial port options from the persistent store for 001057767813.pc-nrfconnect-programmer
20:39:06.270	Device connected with the serial number 001057767813
20:39:07.243	Getting serial port options from the persistent store for 001057767813.pc-nrfconnect-programmer
20:39:07.244	Device connected with the serial number 001057767813
20:39:07.273	Getting serial port options from the persistent store for 001057767813.pc-nrfconnect-programmer
20:41:02.561	Device connected with the serial number 001057767813
20:41:03.528	Getting serial port options from the persistent store for 001057767813.pc-nrfconnect-programmer
20:41:03.528	Device connected with the serial number 001057767813
20:41:03.586	Getting serial port options from the persistent store for 001057767813.pc-nrfconnect-programmer
20:41:12.234	Selecting device with the serial number 001057767813
20:41:21.507	Error: Aborted before start executing nrfutil ["device","device-info","--serial-number","001057767813","--json","--log-output=stdout","--log-level","off"]
20:41:21.621	Error: Aborted before start executing nrfutil ["device","x-execute-batch","--serial-number","001057767813","--batch-json","{\"operations\":[{\"operationId\":\"0\",\"core\":\"NRFDL_DEVICE_CORE_APPLICATION\",\"operation\":{\"type\":\"protection-get\"}}]}","--json","--log-output=stdout","--log-level","off"]
20:41:26.563	Error: Failed with exit code 1. One or more device info tasks failed: * 1057767813: Timed out waiting for response from worker. (Generic) Message: Operation device-info failed, Timed out waiting for response from worker.
20:41:26.563	Selected device with the serial number 001057767813
20:41:26.563	Using nrfutil device to communicate with target via JLink
20:41:29.536	Reading readback protection status for Application core
20:41:29.536	Failed "reading readback protection status for application core". Error: code: 1, description: Generic, message: Batch task protection-get failed, Emulator error: Failed to open connection
20:41:29.586	Error: Failed with exit code 1. One or more batch tasks failed: * 1057767813: Emulator error: Failed to open connection (Generic) Message: Batch task protection-get failed, Emulator error: Failed to open connection.
20:41:29.586	Error: Failed with exit code 1. One or more batch tasks failed: * 1057767813: Emulator error: Failed to open connection (Generic) Message: Batch task protection-get failed, Emulator error: Failed to open connection.
20:41:29.679	Device connected with the serial number 001057767813
20:41:30.639	Getting serial port options from the persistent store for 001057767813.pc-nrfconnect-programmer
20:41:30.640	Device connected with the serial number 001057767813
20:41:30.666	Getting serial port options from the persistent store for 001057767813.pc-nrfconnect-programmer
20:48:34.765	Device connected with the serial number 001057767813
20:48:35.738	Getting serial port options from the persistent store for 001057767813.pc-nrfconnect-programmer
20:48:35.738	Device connected with the serial number 001057767813
20:48:35.770	Getting serial port options from the persistent store for 001057767813.pc-nrfconnect-programmer
20:50:57.896	Selecting device with the serial number 001057767813
20:51:12.228	Error: Failed with exit code 1. One or more device info tasks failed: * 1057767813: Timed out waiting for response from worker. (Generic) Message: Operation device-info failed, Timed out waiting for response from worker.
20:51:12.228	Selected device with the serial number 001057767813
20:51:12.229	Using nrfutil device to communicate with target via JLink
20:51:15.198	Reading readback protection status for Application core
20:51:15.199	Failed "reading readback protection status for application core". Error: code: 1, description: Generic, message: Batch task protection-get failed, Emulator error: Failed to open connection
20:51:15.261	Error: Failed with exit code 1. One or more batch tasks failed: * 1057767813: Emulator error: Failed to open connection (Generic) Message: Batch task protection-get failed, Emulator error: Failed to open connection.
20:51:15.261	Error: Failed with exit code 1. One or more batch tasks failed: * 1057767813: Emulator error: Failed to open connection (Generic) Message: Batch task protection-get failed, Emulator error: Failed to open connection.
20:51:15.339	Device connected with the serial number 001057767813
20:51:16.308	Getting serial port options from the persistent store for 001057767813.pc-nrfconnect-programmer
20:51:16.308	Device connected with the serial number 001057767813
20:51:16.337	Getting serial port options from the persistent store for 001057767813.pc-nrfconnect-programmer

log.txt

2025-10-09T15:17:45.235Z INFO Initialising the bundled nrfutil device
2025-10-09T15:17:45.235Z DEBUG Started watching devices
2025-10-09T15:17:50.315Z DEBUG Requested nRF Util's core version 8.1.1 is already installed.
2025-10-09T15:17:57.362Z INFO Successfully installed nrfutil device version: 2.13.2
2025-10-09T15:17:57.376Z INFO Using the bundled core version for nrfutil device: 8.1.1
2025-10-09T15:17:57.472Z INFO Using nrfutil device version: 2.13.2
2025-10-09T15:17:57.472Z INFO Using nrf-device-lib version: 0.19.0
2025-10-09T15:17:57.472Z INFO Using nrf-probe version: 0.45.0
2025-10-09T15:17:57.472Z INFO Using SEGGER J-Link version: JLink_V8.18
2025-10-09T15:17:57.473Z WARN Outdated SEGGER J-Link. Your version of SEGGER J-Link (8.18) is older than the one this app was tested with (8.60). Install the newer version from https://www.segger.com/downloads/jlink
2025-10-09T15:18:01.255Z DEBUG Selected device: nRF54L15 DK
2025-10-09T15:18:01.276Z DEBUG Changed step: Info
2025-10-09T15:18:02.659Z DEBUG Changed step: Connect
2025-10-09T15:18:04.048Z DEBUG Selected device: nRF54L15 DK
2025-10-09T15:18:04.056Z DEBUG Changed step: Info
2025-10-09T15:18:09.003Z DEBUG Changed step: Rename
2025-10-09T15:18:13.799Z DEBUG Changed step: Program
2025-10-09T15:18:27.407Z ERROR Failed to initialize worker: Timed out waiting for response from worker.
2025-10-09T15:18:31.590Z ERROR Trace channel disconnected unexpectedly.
2025-10-09T15:18:31.590Z ERROR Worker terminated by signal 9.
2025-10-09T15:18:31.591Z ERROR Error output of terminated worker: 

How to recover nRF54L15DK

does we need to update the nRF5340 JLink debugger?

[PjGlasso]

Don't ask how I know... 

Reboot, should be back in business. 

HTH

GL :-) PJ

Ok, Ok..so I thought I was erasing the External board(Xiao nRF54L15) I had connected to the debug out P19, Ah NO I wasn't , I erased the DK

after a few choice words and some meditation, I found the info.

AND...Welcome to level 3 

[Sunil vignesh]

Hi,

Yeah I tried to recover the board as you said but, it didn't work

[09:49:45] =========== Toolchain validation report for nRF Connect SDK Toolchain v3.1.0 ===========
📦 Using the nRF Connect SDK v3.1.0 at /home/sunmac/office/ncs/source/v3.1.0
No issues were detected with the toolchain.
[09:56:45] nrfutil-device recover --serial-number 001057767813 --json
[09:56:59] Error: One or more recover tasks failed:
 * 1057767813: Timed out waiting for response from worker. (Generic)


[09:57:48] nrfutil-device device-info --serial-number 001057767813 --skip-overhead --json
[09:58:02] Error: One or more device info tasks failed:
 * 1057767813: Timed out waiting for response from worker. (Generic)

also in Programmer it shows like 

[Sunil vignesh]

And My findings.

I have one Working nRF54L15DK, I used Debugger OUT (P19) to this affected DK Debugger IN(P15). With Help of that I can able to read the nRF54L15DK SOC, (means the nRF54L15 Soc is Working Fine). 

So problem is with Debugger.

[Vidar Berg]

Please open the J-Link configurator app which is installed along with the Jlink drivers and see if there is an update available for j-link debugger (https://www.segger.com/products/debug-probes/j-link/tools/j-link-configurator/)

[Sunil vignesh]

Finally, Using J-Link Configurator , Dk is working