Two jetson nx (core boards on the development kit) cannot be started

Jetson NX module: 16GB eMMC
R32.5.0

Terminal ready
��
[0000.033] W> RATCHET: MB1 binary ratchet value 4 is too large than ratchet level 2 from HW fuses.
[0000.041] I> MB1 (prd-version: 1.5.1.6-t194-41334769-1740dd39)
[0000.047] I> Boot-mode: Coldboot
[0000.050] I> Chip revision : A02P
[0000.053] I> Bootrom patch version : 15 (correctly patched)
[0000.058] I> ATE fuse revision : 0x200
[0000.061] I> Ram repair fuse : 0x0
��000.064] I> Ram Code : 0x2
[0000.033] W> RATCHET: MB1 binary ratchet value 4 is too large than ratchet level 2 from HW fuses.
[0000.041] I> MB1 (prd-version: 1.5.1.6-t194-41334769-1740dd39)
[0000.047] I> Boot-mode: Coldboot
[0000.050] I> Chip revision : A02P
[0000.053] I> Bootrom patch version : 15 (correctly patched)
[0000.058] I> ATE fuse revision : 0x200
[0000.061] I> Ram repair fuse : 0x0
[0000.064] I> Ram Code : 0x2
[0000.067] I> rst_source : 0x0
[0000.070] I> rst_level : 0x0
[0000.073] I> Boot-device: QSPI
[0000.076] I> Qspi flash params source = brbct
[0000.080] I> Qspi using bpmp-dma
[0000.083] I> Qspi clock source : pllp
[0000.086] I> QSPI Flash Size = 32 MB
[0000.090] I> Qspi initialized successfully
[0000.094] E> LOADER: Failed to verify SMD.
[0000.097] I> Primary SMD copy is invalid, try with secondary copy…
[0000.104] E> LOADER: Failed to verify SMD.
[0000.107] E> LOADER: Failed to verify SMD & SMD_b.
[0000.112] E> Error: SMD: Load failed
[0000.115] E> Load SMD failed
[0000.118] E> LOADER: Failed to get slot for boot chain from SMD.
[0000.123] E> LOADER: Failed to get storage info for binary 0 from loader.
[0000.130] E> LOADER: Failed to get info for binary 0 from loader.
[0000.135] C> LOADER: Could not read binary 0.
[0000.139] C> Fail to load mb1-bct bin
[0000.143] E> Task 24 failed (err: 0x1d1d1318)
[0000.147] E> Top caller module: LOADER, error module: LOADER, reason: 0x18, aux_info: 0x13
[0000.155] I> MB1(1.5.1.6-t194-41334769-1740dd39) BIT boot status dump :
0000000000011111111110111000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
��
[0000.033] W> RATCHET: MB1 binary ratchet value 4 is too large than ratchet level 2 from HW fuses.
[0000.041] I> MB1 (prd-version: 1.5.1.6-t194-41334769-1740dd39)
[0000.046] I> Boot-mode: Coldboot
[0000.049] I> Chip revision : A02P
[0000.052] I> Bootrom patch version : 15 (correctly patched)
[0000.058] I> ATE fuse revision : 0x200
[0000.061] I> Ram repair fuse : 0x0
[0000.064] I> Ram Code : 0x2
[0000.067] I> rst_source : 0xb
[0000.069] I> rst_level : 0x1
[0000.073] I> Boot-device: QSPI
[0000.076] I> Qspi flash params source = brbct
[0000.080] I> Qspi using bpmp-dma
[0000.083] I> Qspi clock source : pllp
[0000.086] I> QSPI Flash Size = 32 MB
[0000.089] I> Qspi initialized successfully
[0000.094] E> LOADER: Failed to verify SMD.
[0000.097] I> Primary SMD copy is invalid, try with secondary copy…
[0000.103] E> LOADER: Failed to verify SMD.
[0000.107] E> LOADER: Failed to verify SMD & SMD_b.
[0000.112] E> Error: SMD: Load failed
[0000.115] E> Load SMD failed
[0000.118] E> LOADER: Failed to get slot for boot chain from SMD.
[0000.123] E> LOADER: Failed to get storage info for binary 0 from loader.
[0000.130] E> LOADER: Failed to get info for binary 0 from loader.
[0000.135] C> LOADER: Could not read binary 0.
[0000.139] C> Fail to load mb1-bct bin
[0000.143] E> Task 24 failed (err: 0x1d1d1318)
[0000.147] E> Top caller module: LOADER, error module: LOADER, reason: 0x18, aux_info: 0x13
[0000.155] I> MB1(1.5.1.6-t194-41334769-1740dd39) BIT boot status dump :
0000000000011111111110111000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000

Have you tried flashing them again? If so, has flash for another Jetson worked from the same install on the host PC flash software?