Dear Wayne
I brought new board. when I am flashing the flash. I am getting :
14:53:19 INFO: CuDNN Runtime - target: verifying checksum of /home/oem/nvidia/nvidia_files/cudnn-local-tegra-repo-ubuntu2004-8.6.0.166_1.0-1_arm64.deb
14:53:19 INFO: TensorRT Runtime - target: verifying checksum of /home/oem/nvidia/nvidia_files/nv-tensorrt-local-repo-l4t-8.5.2-cuda-11.4_1.0-1_arm64.deb
14:53:19 INFO: OpenCV Runtime - target: verifying checksum of /home/oem/nvidia/nvidia_files/OpenCV-4.5.4-8-g3e4c170df4-aarch64-libs.deb
14:53:19 INFO: OpenCV Runtime - target: Found file /home/oem/nvidia/nvidia_files/OpenCV-4.5.4-8-g3e4c170df4-aarch64-libs.deb with correct checksum, skip downloading.
14:53:19 INFO: CuPVA Runtime - target: verifying checksum of /home/oem/nvidia/nvidia_files/cupva-2.3.0-l4t.deb
14:53:19 INFO: CuPVA Runtime - target: Found file /home/oem/nvidia/nvidia_files/cupva-2.3.0-l4t.deb with correct checksum, skip downloading.
14:53:19 INFO: VPI Runtime - target: verifying checksum of /home/oem/nvidia/nvidia_files/vpi-lib-2.3.9-aarch64-l4t.deb
14:53:19 INFO: VPI Runtime - target: verifying checksum of /home/oem/nvidia/nvidia_files/vpi-python3.8-2.3.9-aarch64-l4t.deb
14:53:19 INFO: VPI Runtime - target: verifying checksum of /home/oem/nvidia/nvidia_files/vpi-python3.9-2.3.9-aarch64-l4t.deb
14:53:19 INFO: VPI Runtime - target: Found file /home/oem/nvidia/nvidia_files/vpi-python3.8-2.3.9-aarch64-l4t.deb with correct checksum, skip downloading.
14:53:19 INFO: VPI Runtime - target: Found file /home/oem/nvidia/nvidia_files/vpi-python3.9-2.3.9-aarch64-l4t.deb with correct checksum, skip downloading.
14:53:19 INFO: VPI Runtime - target: Found file /home/oem/nvidia/nvidia_files/vpi-lib-2.3.9-aarch64-l4t.deb with correct checksum, skip downloading.
14:53:19 INFO: NVIDIA Container Runtime with Docker integration (Beta) - target: verifying checksum of /home/oem/nvidia/nvidia_files/libnvidia-container0_0.11.0+jetpack_arm64.deb
14:53:19 INFO: NVIDIA Container Runtime with Docker integration (Beta) - target: verifying checksum of /home/oem/nvidia/nvidia_files/libnvidia-container1_1.10.0-1_arm64.deb
14:53:19 INFO: NVIDIA Container Runtime with Docker integration (Beta) - target: verifying checksum of /home/oem/nvidia/nvidia_files/libnvidia-container-tools_1.10.0-1_arm64.deb
14:53:19 INFO: NVIDIA Container Runtime with Docker integration (Beta) - target: verifying checksum of /home/oem/nvidia/nvidia_files/nvidia-container-toolkit_1.11.0_rc.1-1_arm64.deb
14:53:19 INFO: NVIDIA Container Runtime with Docker integration (Beta) - target: verifying checksum of /home/oem/nvidia/nvidia_files/nvidia-container-runtime_3.9.0-1_all.deb
14:53:19 INFO: NVIDIA Container Runtime with Docker integration (Beta) - target: verifying checksum of /home/oem/nvidia/nvidia_files/nvidia-docker2_2.11.0-1_all.deb
14:53:19 INFO: NVIDIA Container Runtime with Docker integration (Beta) - target: Found file /home/oem/nvidia/nvidia_files/nvidia-docker2_2.11.0-1_all.deb with correct checksum, skip downloading.
14:53:19 INFO: NVIDIA Container Runtime with Docker integration (Beta) - target: Found file /home/oem/nvidia/nvidia_files/nvidia-container-runtime_3.9.0-1_all.deb with correct checksum, skip downloading.
14:53:19 INFO: NVIDIA Container Runtime with Docker integration (Beta) - target: Found file /home/oem/nvidia/nvidia_files/nvidia-container-toolkit_1.11.0_rc.1-1_arm64.deb with correct checksum, skip downloading.
14:53:19 INFO: NVIDIA Container Runtime with Docker integration (Beta) - target: Found file /home/oem/nvidia/nvidia_files/libnvidia-container-tools_1.10.0-1_arm64.deb with correct checksum, skip downloading.
14:53:19 INFO: NVIDIA Container Runtime with Docker integration (Beta) - target: Found file /home/oem/nvidia/nvidia_files/libnvidia-container1_1.10.0-1_arm64.deb with correct checksum, skip downloading.
14:53:19 INFO: NVIDIA Container Runtime with Docker integration (Beta) - target: Found file /home/oem/nvidia/nvidia_files/libnvidia-container0_0.11.0+jetpack_arm64.deb with correct checksum, skip downloading.
14:53:19 INFO: Multimedia API - target: verifying checksum of /home/oem/nvidia/nvidia_files/nvidia-l4t-jetson-multimedia-api_35.4.1-20230801124926_arm64.deb
14:53:19 INFO: Multimedia API - target: Found file /home/oem/nvidia/nvidia_files/nvidia-l4t-jetson-multimedia-api_35.4.1-20230801124926_arm64.deb with correct checksum, skip downloading.
14:53:19 INFO: CUDA Toolkit for L4T - target: verifying checksum of /home/oem/nvidia/nvidia_files/cuda-repo-l4t-11-4-local_11.4.19-1_arm64.deb
14:53:20 INFO: TensorRT Runtime - target: Found file /home/oem/nvidia/nvidia_files/nv-tensorrt-local-repo-l4t-8.5.2-cuda-11.4_1.0-1_arm64.deb with correct checksum, skip downloading.
14:53:20 INFO: cuDNN on Target - target: verifying checksum of /home/oem/nvidia/nvidia_files/cudnn-local-tegra-repo-ubuntu2004-8.6.0.166_1.0-1_arm64.deb
14:53:20 INFO: CuDNN Runtime - target: Found file /home/oem/nvidia/nvidia_files/cudnn-local-tegra-repo-ubuntu2004-8.6.0.166_1.0-1_arm64.deb with correct checksum, skip downloading.
15:42:38 INFO: Flash Jetson Linux - flash: [ 15.7564 ] dd if=br_bct_b_BR.bct of=bct_backup.img bs=1 seek=16384 conv=notrunc
15:42:38 INFO: Flash Jetson Linux - flash: [ 15.7577 ] 2888+0 records in
15:42:38 INFO: Flash Jetson Linux - flash: [ 15.7617 ] 2888+0 records out
15:42:38 INFO: Flash Jetson Linux - flash: [ 15.7617 ] 2888 bytes (2.9 kB, 2.8 KiB) copied, 0.00339312 s, 851 kB/s
15:42:38 INFO: Flash Jetson Linux - flash: [ 15.7617 ]
15:42:38 INFO: Flash Jetson Linux - flash: [ 15.7617 ] Generating signatures
15:42:38 INFO: Flash Jetson Linux - flash: [ 18.7474 ] tegrasign_v3.py --key None --list images_list.xml --pubkeyhash pub_key.key
15:42:38 INFO: Flash Jetson Linux - flash: [ 18.7478 ] Assuming zero filled SBK key
15:42:38 INFO: Flash Jetson Linux - flash: [ 18.8802 ] Warning: pub_key.key is not found
15:42:38 INFO: Flash Jetson Linux - flash: [ 15.8974 ] Parsing dev params for multi chains
15:42:38 INFO: Flash Jetson Linux - flash: [ 15.8974 ] Generating br-bct
15:42:38 INFO: Flash Jetson Linux - flash: [ 15.8996 ] Performing cfg overlay
15:42:38 INFO: Flash Jetson Linux - flash: [ 15.8996 ] [‘/home/oem/nvidia/nvidia_sdk/JetPack_5.1.2_Linux_JETSON_XAVIER_NX_TARGETS/Linux_for_Tegra/bootloader/61704/tmp_p091_ad1.cfg’]
15:42:38 INFO: Flash Jetson Linux - flash: [ 15.8996 ] Updating dev and MSS params in BR BCT
15:42:38 INFO: Flash Jetson Linux - flash: [ 15.8996 ] tegrabct_v2 --dev_param tegra194-br-bct-qspi-l4t.cfg --sdram /home/oem/nvidia/nvidia_sdk/JetPack_5.1.2_Linux_JETSON_XAVIER_NX_TARGETS/Linux_for_Tegra/bootloader/61704/tmp_p091_ad1.cfg --brbct br_bct.cfg --sfuse tegra194-mb1-soft-fuses-l4t.cfg --chip 0x19 0
15:42:38 INFO: Flash Jetson Linux - flash: [ 15.9730 ] Updating bl info
15:42:38 INFO: Flash Jetson Linux - flash: [ 15.9757 ] tegrabct_v2 --brbct br_bct_BR.bct --chip 0x19 0 --updateblinfo flash.xml.bin --updatesig images_list_signed.xml
15:42:38 INFO: Flash Jetson Linux - flash: [ 15.9811 ] Updating smd info
15:42:38 INFO: Flash Jetson Linux - flash: [ 15.9834 ] tegrabct_v2 --brbct br_bct_BR.bct --chip 0x19 --updatesmdinfo flash.xml.bin
15:42:38 INFO: Flash Jetson Linux - flash: [ 15.9857 ] Updating Odmdata
15:42:38 INFO: Flash Jetson Linux - flash: [ 15.9883 ] tegrabct_v2 --brbct br_bct_BR.bct --chip 0x19 0 --updatefields Odmdata =0xB8190000
15:42:38 INFO: Flash Jetson Linux - flash: [ 16.0130 ] Performing cfg overlay
15:42:39 INFO: Flash Jetson Linux - flash: [ 16.1767 ] 2888+0 records out
15:42:39 INFO: Flash Jetson Linux - flash: [ 16.1767 ] 2888 bytes (2.9 kB, 2.8 KiB) copied, 0.00210974 s, 1.4 MB/s
15:42:39 INFO: Flash Jetson Linux - flash: [ 16.1767 ]
15:42:39 INFO: Flash Jetson Linux - flash: [ 16.3693 ] Parsing config file :tegra19x-mb1-pinmux-p3668-a01.cfg
15:42:39 INFO: Flash Jetson Linux - flash: [ 16.4234 ] Added Platform Config 2 data with size :- 24
15:42:39 INFO: Flash Jetson Linux - flash: [ 16.5331 ] Parsing config file :tegra194-mb1-bct-pmic-p3668-0001-a00.cfg
15:42:39 INFO: Flash Jetson Linux - flash: [ 16.5336 ] Added Platform Config 4 data with size :- 348
15:42:39 INFO: Flash Jetson Linux - flash: [ 16.5343 ] Parsing config file :tegra194-mb1-bct-reset-p3668-0001-a00.cfg
15:42:39 INFO: Flash Jetson Linux - flash: [ 16.5348 ] Added Platform Config 3 data with size :- 92
15:42:39 INFO: Flash Jetson Linux - flash: [ 16.5352 ] Parsing config file :tegra19x-mb1-prod-p3668-0001-a00.cfg
15:42:39 INFO: Flash Jetson Linux - flash: [ 16.6619 ] tegrabct_v2 --chip 0x19 --mb1bct mb1_cold_boot_bct_MB1.bct --updatefwinfo flash.xml.bin
15:42:39 INFO: Flash Jetson Linux - flash: [ 16.6712 ] Updating mb1-bct with ratchet information
15:42:39 INFO: Flash Jetson Linux - flash: [ 16.6747 ] tegrabct_v2 --chip 0x19 --mb1bct mb1_cold_boot_bct_MB1.bct --minratchet tegra194-mb1-bct-ratchet-p3668.cfg
15:42:39 INFO: Flash Jetson Linux - flash: [ 16.6768 ] FwIndex: 1, MinRatchetLevel: 0
15:42:39 INFO: Flash Jetson Linux - flash: [ 16.6774 ] FwIndex: 2, MinRatchetLevel: 0
15:42:39 INFO: Flash Jetson Linux - flash: [ 16.6777 ] FwIndex: 3, MinRatchetLevel: 0
15:42:39 INFO: Flash Jetson Linux - flash: [ 16.6777 ] FwIndex: 4, MinRatchetLevel: 0
15:42:39 INFO: Flash Jetson Linux - flash: [ 16.6777 ] FwIndex: 5, MinRatchetLevel: 0
15:42:39 INFO: Flash Jetson Linux - flash: [ 16.7728 ] tegrahost_v2 --chip 0x19 --align mb1_bct_MB1_aligned.bct
15:42:39 INFO: Flash Jetson Linux - flash: [ 16.7784 ] tegrahost_v2 --chip 0x19 0 --magicid MBCT --ratchet_blob ratchet_blob.bin --appendsigheader mb1_bct_MB1_aligned.bct zerosbk
15:42:39 INFO: Flash Jetson Linux - flash: [ 16.8738 ] Packing sdram param for instance[5]
15:42:39 INFO: Flash Jetson Linux - flash: [ 16.8738 ] Packing sdram param for instance[6]
15:42:39 INFO: Flash Jetson Linux - flash: [ 19.9622 ] tegrasign_v3.py --key None --list mem_rcm_aligned_sigheader.bct_list.xml --pubkeyhash pub_key.key
15:42:39 INFO: Flash Jetson Linux - flash: [ 19.9625 ] Assuming zero filled SBK key
15:42:40 INFO: Flash Jetson Linux - flash: [ 19.9643 ] Warning: pub_key.key is not found
15:42:40 INFO: Flash Jetson Linux - flash: [ 16.9838 ] tegrahost_v2 --chip 0x19 0 --updatesigheader mem_rcm_aligned_sigheader.bct.encrypt mem_rcm_aligned_sigheader.bct.hash zerosbk
15:42:40 INFO: Flash Jetson Linux - flash: [ 16.9863 ] Copying signatures
15:42:40 INFO: Flash Jetson Linux - flash: [ 16.9887 ] tegrahost_v2 --chip 0x19 0 --partitionlayout flash.xml.bin --updatesig images_list_signed.xml
15:42:40 INFO: Flash Jetson Linux - flash: [ 17.2475 ] Boot Rom communication
15:42:40 INFO: Flash Jetson Linux - flash: [ 17.2504 ] tegrarcm_v2 --chip 0x19 0 --rcm rcm_list_signed.xml
15:42:40 INFO: Flash Jetson Linux - flash: [ 17.2517 ] BR_CID: 0x88021911642ca70204000000110300c0
15:42:40 INFO: Flash Jetson Linux - flash: [ 17.6828 ] RCM version 0X190001
15:42:41 INFO: Flash Jetson Linux - flash: [ 17.7101 ] Boot Rom communication completed
15:42:42 INFO: Flash Jetson Linux - flash: [ 19.7327 ] tegrarcm_v2 --isapplet
15:42:42 INFO: Flash Jetson Linux - flash: [ 19.7350 ] Applet version 01.00.0000
15:42:42 INFO: Flash Jetson Linux - flash: [ 19.8077 ] Sending BCTs
15:42:42 INFO: Flash Jetson Linux - flash: [ 19.8116 ] tegrarcm_v2 --download bct_bootrom br_bct_BR.bct --download bct_mb1 mb1_bct_MB1_sigheader.bct.encrypt --download bct_mem mem_rcm_sigheader.bct.encrypt
15:42:42 INFO: Flash Jetson Linux - flash: [ 19.8140 ] Applet version 01.00.0000
15:42:42 INFO: Flash Jetson Linux - flash: [ 19.9085 ] Sending bct_bootrom
15:42:42 INFO: Flash Jetson Linux - flash: [ 19.9086 ] […] 100%
15:42:42 INFO: Flash Jetson Linux - flash: [ 19.9097 ] Sending bct_mb1
15:42:42 INFO: Flash Jetson Linux - flash: [ 19.9148 ] […] 100%
15:42:42 INFO: Flash Jetson Linux - flash: [ 19.9184 ] Sending bct_mem
15:42:42 INFO: Flash Jetson Linux - flash: [ 19.9673 ] […] 100%
15:42:42 INFO: Flash Jetson Linux - flash: [ 19.9732 ] 000000008c8c0302: E> NV3P_SERVER: Failed to verify image bct_mem.
15:42:42 INFO: Flash Jetson Linux - flash: [ 19.9917 ]
15:42:42 INFO: Flash Jetson Linux - flash: [ 19.9917 ]
15:42:42 ERROR: Flash Jetson Linux - flash: Error: Return value 2
15:42:42 INFO: Flash Jetson Linux - flash: Command tegrarcm_v2 --download bct_bootrom br_bct_BR.bct --download bct_mb1 mb1_bct_MB1_sigheader.bct.encrypt --download bct_mem mem_rcm_sigheader.bct.encrypt
15:42:42 INFO: Flash Jetson Linux - flash: Failed flashing t186ref.
15:42:42 ERROR: Flash Jetson Linux - flash: *** ERROR: flashing failed.
15:42:42 ERROR: Flash Jetson Linux - flash: [exec_command]: /bin/bash -c /home/oem/.nvsdkm/replays/scripts/JetPack_5.1.2_Linux/NV_L4T_FLASH_JETSON_LINUX_COMP.sh; [error]: *** ERROR: flashing failed.
15:42:42 INFO: Flash Jetson Linux - flash: [ Component Install Finished with Error ]
15:42:42 INFO: Flash Jetson Linux - flash: [host] [ 9.60 MB released. Disk Avail on Partition /dev/sda2: 13.53 GB ]
15:42:42 INFO: Flash Jetson Linux - flash: [ NV_L4T_FLASH_JETSON_LINUX_COMP Install took 15m24s ]
15:42:44 ERROR: command error code: 11
15:42:44 ERROR: Flash Jetson Linux - flash: command terminated with error
15:42:44 SUMMARY: Flash Jetson Linux - flash: First Error: Installation failed.
INSTALLATION FAILEDPlease review the terminal tab for details. Resolve and RETRY.
EXPORT LOGS
RETRY
FAILED ITEMS

STOP TRYING

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I have attached terminal logs also.
SDKM_logs_JetPack_5.1.2_Linux_for_Jetson_Xavier_NX_2025-07-22_15-27-08.zip (577.7 KB)