*** Updating BFS information on BCT
/home/scala/work/update/mfi_jetson-nano-emmc-smpsq_20210324105631_signed/tegrabct --bct P3448_A00_4GB_Micron_4GB_lpddr4_204Mhz_P987.bct --chip 0x21 0 --updatebfsinfo flash.xml.bin
   BFS:
     0: [PT ] flash.xml.bin (size=4343/131072)
     1: [TBC] nvtboot_cpu.bin.signed (size=65760/196608)
     2: [RP1] smpsq-tegra210-p3448-0002-p3449-0000-b00.dtb.signed (size=220928/1048576)
     3: [EBT] cboot.bin.signed (size=484304/655360)
     4: [WB0] warmboot.bin.signed (size=3952/131072)
     5: [BPF] sc7entry-firmware.bin.signed (size=3376/262144)
BFS0: 131072 @ 2560 SUM 37de57c9 over 2883584 bytes
   BFS:
     0: [PT-1] flash.xml.bin (size=4343/131072)
     1: [TBC-1] nvtboot_cpu.bin.signed (size=65760/196608)
     2: [RP1-1] smpsq-tegra210-p3448-0002-p3449-0000-b00.dtb.signed (size=220928/1048576)
     3: [EBT-1] cboot.bin.signed (size=484304/655360)
     4: [WB0-1] warmboot.bin.signed (size=3952/131072)
     5: [BPF-1] sc7entry-firmware.bin.signed (size=3376/262144)
BFS1: 131072 @ 8704 SUM 37de57c9 over 2883584 bytes
   KFS:
     0: [DTB] smpsq-tegra210-p3448-0002-p3449-0000-b00.dtb.signed (size=220928/1048576)
     1: [TOS] tos-mon-only.img.signed (size=54448/6291456)
     2: [EKS] eks.img (size=1028/81920)
     3: [LNX] boot.img.signed (size=499712/67092480)
KFS0: 1048576 @ 29376546 SUM 680cae8d over 7921664 bytes
   KFS:
     0: [DTB-1] smpsq-tegra210-p3448-0002-p3449-0000-b00.dtb.signed (size=220928/1048576)
     1: [TOS-1] tos-mon-only.img.signed (size=54448/6291456)
     2: [EKS-1] eks.img (size=1028/81920)
     3: [LNX-1] boot.img.signed (size=499712/67092480)
KFS1: 1048576 @ 29522082 SUM 680cae8d over 7921664 bytes
*** Updating BFS information on BCT succeeded.

*** Boot Rom communication
/home/scala/work/update/mfi_jetson-nano-emmc-smpsq_20210324105631_signed/tegrarcm --instance 1-2 --chip 0x21 0 --rcm rcm_1_signed.rcm
BR_CID: 0x321010016445c8471800000007008080
Bootrom returned error 4
Boot Rom communication failed
*** Error: Boot Rom communication failed.