Hello,
I've been using nRF54L15-DK devboard (0.9.2 revision on the label) for about a month now without any problems until today.
I wanted to change VDD output voltage using Board configurator tool. After that button 'write config' is just disabled, and i cannot click on it.
After several resets I've received following message from segger tool, that says my debugger firmware was not ok.
After (maybe?) successfull firmware upgrade - nothing changed. I've tried with different firmware versions (file JLink_OB_nRF5340_NordicSemi.bin bundled with segger 7.94i, 7.98i and 8.16 version).
from the command line i see this error (regardless jlink version):
> nrfutil.exe device device-info
Error: One or more device info tasks failed:
* 1057717645: Emulator error: No emulator with connection info 'Usb(JLinkSerialNumber(1057717645))' was found (Generic)
Tried to recover with no luck:
PS C:\Users\trimf> nrfutil.exe device recover
Failed to recover 1057717645, Timed out waiting for response from worker.
Error: One or more recover tasks failed:
* 1057717645: Timed out waiting for response from worker. (Generic)
Also, I've tried to use Quick start tool to re-init board and flash some default app:
and the following log:
2025-03-10T22:59:14.895Z INFO Initialising the bundled nrfutil device
2025-03-10T22:59:14.904Z DEBUG Started watching devices
2025-03-10T22:59:16.195Z INFO Using the bundled core version for nrfutil device: 7.13.0
2025-03-10T22:59:16.740Z INFO Using nrfutil-device version: 2.7.5
2025-03-10T22:59:16.741Z INFO Using nrf-device-lib version: 0.17.41
2025-03-10T22:59:16.741Z INFO Using nrfjprog DLL version: 10.24.2
2025-03-10T22:59:16.741Z INFO Using JLink version: JLink_V7.94i
2025-03-10T22:59:17.924Z DEBUG Selected device: nRF54L15 DK
2025-03-10T22:59:17.948Z DEBUG Changed step: Info
2025-03-10T22:59:21.753Z DEBUG Changed step: Rename
2025-03-10T22:59:24.905Z DEBUG Changed step: Program
2025-03-10T22:59:29.540Z ERROR NRFDLException(1): [Probe] Emulator error: No emulator with connection info 'Usb(JLinkSerialNumber(1057717645))' was found
2025-03-10T22:59:29.542Z ERROR [ProbeLib] [2025-03-10 22:59:29.542377Z] Trace channel disconnected unexpectedly.
2025-03-10T22:59:40.394Z ERROR NRFDLException(1): [Probe] Emulator error: No emulator with connection info 'Usb(JLinkSerialNumber(1057717645))' was found
2025-03-10T22:59:40.397Z ERROR [ProbeLib] [2025-03-10 22:59:40.397901Z] Trace channel disconnected unexpectedly.
2025-03-10T22:59:55.848Z ERROR NRFDLException(1): [Probe] Timed out waiting for response from worker.
I've tried different USB ports and cables.
My second dev board works fine (although I didn't try to change it's voltage level).
Is there any way to recover my board?
