J-Link does not recognize the NRF54L15

Issue with debug on the PDK eng_rev_B PCA10156

Segger does not recognize the chip and debug fails across multiple sample applications

debug message results:

JLinkGDBServerCL: SEGGER J-Link GDB Server V7.94i Command Line Version
JLinkGDBServerCL:
JLinkGDBServerCL: JLinkARM.dll V7.94i (DLL compiled Feb 7 2024 17:08:52)
JLinkGDBServerCL:
JLinkGDBServerCL: -----GDB Server start settings-----
JLinkGDBServerCL: GDBInit file: none
JLinkGDBServerCL: GDB Server Listening port: 59049
JLinkGDBServerCL: SWO raw output listening port: 2332
JLinkGDBServerCL: Terminal I/O port: 2333
JLinkGDBServerCL: Accept remote connection: localhost only
JLinkGDBServerCL: Generate logfile: off
JLinkGDBServerCL: Verify download: off
JLinkGDBServerCL: Init regs on start: off
JLinkGDBServerCL: Silent mode: on
JLinkGDBServerCL: Single run mode: on
JLinkGDBServerCL: Target connection timeout: 0 ms
JLinkGDBServerCL: ------J-Link related settings------
JLinkGDBServerCL: J-Link Host interface: USB
JLinkGDBServerCL: J-Link script: none
JLinkGDBServerCL: J-Link settings file: none
JLinkGDBServerCL: ------Target related settings------
JLinkGDBServerCL: Target device: cortex-m33
JLinkGDBServerCL: Target device parameters: none
JLinkGDBServerCL: Target interface: SWD
JLinkGDBServerCL: Target interface speed: 12000kHz
JLinkGDBServerCL: Target endian: little
JLinkGDBServerCL: =thread-group-added,id="i1" =cmd-param-changed,param="pagination",value="off" nrf_event_check (event=304, p_reg=p_reg@entry=0x500c6000) at C:/ncs/v2.7.0/modules/hal/nordic/nrfx/hal/nrf_common.h:264 264 return (bool)*(volatile const uint32_t *)((const uint8_t *)p_reg + (uint32_t)event);
[New Thread 536884376]
[New Thread 536884176]
[New Thread 536878720]

These sample application worked on the nRF54840 Dev board, built from the same code alternate build, and are from 2.7.0 

Segger kicks up the following screens when trying to debug

Thanks in advance

Related