The The Jetson Nano Developer Kit (with 4GB memory) keeps restarting after being powered on；
start log:
[L4T TegraBoot] (version 00.00.2018.01-l4t-8728f3cb)
[0000.130] Processing in cold boot mode Bootloader 2
[0000.135] A02 Bootrom Patch rev = 1023
[0000.138] Power-up reason: pmc por
[0000.141] No Battery Present
[0000.144] pmic max77620 reset reason
[0000.147] pmic max77620 NVERC : 0x40
[0000.151] RamCode = 0
[0000.153] Platform has DDR4 type RAM
[0000.156] max77620 disabling SD1 Remote Sense
[0000.161] Setting DDR voltage to 1125mv
[0000.165] Serial Number of Pmic Max77663: 0x2ecd
[0000.172] Entering ramdump check
[0000.175] Get RamDumpCarveOut = 0x0
[0000.178] RamDumpCarveOut=0x0, RamDumperFlag=0xe59ff3f8
[0000.184] Last reboot was clean, booting normally!
[0000.188] Sdram initialization is successful
[0000.192] SecureOs Carveout Base=0x00000000ff800000 Size=0x00800000
[0000.198] Lp0 Carveout Base=0x00000000ff780000 Size=0x00001000
[0000.204] BpmpFw Carveout Base=0x00000000ff700000 Size=0x00080000
[0000.210] GSC1 Carveout Base=0x00000000ff600000 Size=0x00100000
[0000.216] GSC2 Carveout Base=0x00000000ff500000 Size=0x00100000
[0000.222] GSC4 Carveout Base=0x00000000ff400000 Size=0x00100000
[0000.227] GSC5 Carveout Base=0x00000000ff300000 Size=0x00100000
[0000.233] GSC3 Carveout Base=0x000000017f300000 Size=0x00d00000
[0000.249] RamDump Carveout Base=0x00000000ff280000 Size=0x00080000
[0000.256] Platform-DebugCarveout: 0
[0000.259] Nck Carveout Base=0x00000000ff080000 Size=0x00200000
[0000.265] Non secure mode, and RB not enabled.
[0000.269] BoardID = 3448, SKU = 0x0
[0000.272] QSPI-ONLY: SkipQspiOnlyFlag = 0
[0000.276] Nano-SD: checking PT table on QSPI …
[0000.280] Initialize FailControl
[0000.283] Read PT from (2:0)
[0000.314] PT crc32 and magic check passed.
[0000.318] Using BFS PT to query partitions
[0000.323] Loading Tboot-CPU binary
[0000.352] Verifying TBC in OdmNonSecureSBK mode
[0000.362] Bootloader load address is 0xa0000000, entry address is 0xa0000258
[0000.369] Bootloader downloaded successfully.
[0000.373] Downloaded Tboot-CPU binary to 0xa0000258
[0000.378] MAX77620_GPIO5 configured
[0000.381] CPU power rail is up
[0000.384] CPU clock enabled
[0000.388] Performing RAM repair
[0000.391] Updating A64 Warmreset Address to 0xa00002e9
[0000.396] BoardID = 3448, SKU = 0x0
[0000.399] QSPI-ONLY: SkipQspiOnlyFlag = 0
[0000.403] Nano-SD: checking PT table on QSPI …
[0000.407] NvTbootFailControlDoFailover: No failover; Continuing …
[0000.413] Loading NvTbootBootloaderDTB
[0000.480] Verifying NvTbootBootloaderDTB in OdmNonSecureSBK mode
[0000.551] Bootloader DTB Load Address: 0x83000000
[0000.556] BoardID = 3448, SKU = 0x0
[0000.559] QSPI-ONLY: SkipQspiOnlyFlag = 0
[0000.563] Nano-SD: checking PT table on QSPI …
[0000.567] NvTbootFailControlDoFailover: No failover; Continuing …
[0000.573] Loading NvTbootKernelDTB
[0000.639] Verifying NvTbootKernelDTB in OdmNonSecureSBK mode
[0000.711] Kernel DTB Load Address: 0x83100000
[0000.715] BoardID = 3448, SKU = 0x0
[0000.718] QSPI-ONLY: SkipQspiOnlyFlag = 0
[0000.722] Nano-SD: checking PT table on QSPI …
[0000.726] NvTbootFailControlDoFailover: No failover; Continuing …
[0000.734] Loading cboot binary
[0000.850] Verifying EBT in OdmNonSecureSBK mode
[0000.892] Bootloader load address is 0x92c00000, entry address is 0x92c00258
[0000.899] Bootloader downloaded successfully.
[0000.903] BoardID = 3448, SKU = 0x0
[0000.906] QSPI-ONLY: SkipQspiOnlyFlag = 0
[0000.910] Nano-SD: checking PT table on QSPI …
[0000.914] NvTbootFailControlDoFailover: No failover; Continuing …
[0000.920] PT: Partition NCT NOT found !
[0000.924] Warning: Find Partition via PT Failed
[0000.928] Next binary entry address: 0x92c00258
[0000.933] BoardId: 3448
[0000.937] Overriding pmu board id with proc board id
[0000.942] Display board id is not available
[0000.946] BoardID = 3448, SKU = 0x0
[0000.950] QSPI-ONLY: SkipQspiOnlyFlag = 0
[0000.954] Nano-SD: checking PT table on QSPI …
[0000.958] NvTbootFailControlDoFailover: No failover; Continuing …
[0001.065] Verifying SC7EntryFw in OdmNonSecureSBK mode
[0001.121] /bpmp deleted
[0001.123] SC7EntryFw header found loaded at 0xff700000
[0001.311] OVR2 PMIC
[0001.313] Bpmp FW successfully loaded
[0001.316] BoardID = 3448, SKU = 0x0
[0001.319] QSPI-ONLY: SkipQspiOnlyFlag = 0
[0001.323] Nano-SD: checking PT table on QSPI …
[0001.328] NvTbootFailControlDoFailover: No failover; Continuing …
[0001.335] WB0 init successfully at 0xff780000
[0001.339] Verifying NvTbootWb0 in OdmNonSecureSBK mode
[0001.344] Set NvDecSticky Bits
[0001.348] GSC2 address ff53fffc value c0edbbcc
[0001.354] GSC MC Settings done
[0001.357] BoardID = 3448, SKU = 0x0
[0001.360] QSPI-ONLY: SkipQspiOnlyFlag = 0
[0001.364] Nano-SD: checking PT table on QSPI …
[0001.368] NvTbootFailControlDoFailover: No failover; Continuing …
[0001.375] TOS Image length 53680
[0001.378] Monitor size 53680
[0001.381] OS size 0
[0001.396] Secure Os Aes-CMAC Verification Failed!
[0001.401] Error in NvTbootValidateTOS [18]
[0001.405] Validation of secure os failed!
[0001.408] TOS partition is corrupted!
[0001.412] *** Set to failover in the next boot ***
[0001.416] NvTbootFailControlSetClobber:
[0001.420] *** Rebooting ***
[0000.157] [L4T TegraBoot] (version 00.00.2018.01-l4t-8728f3cb)
[0000.162] Processing in cold boot mode Bootloader 2
[0000.167] A02 Bootrom Patch rev = 1023
[0000.171] Power-up reason: software reset
[0000.174] No Battery Present
[0000.177] pmic max77620 reset reason
[0000.180] pmic max77620 NVERC : 0x0
[0000.184] RamCode = 0
[0000.186] Platform has DDR4 type RAM
[0000.189] max77620 disabling SD1 Remote Sense
[0000.193] Setting DDR voltage to 1125mv
[0000.197] Serial Number of Pmic Max77663: 0x2ecd
[0000.205] Entering ramdump check
[0000.208] Get RamDumpCarveOut = 0x0
[0000.211] RamDumpCarveOut=0x0, RamDumperFlag=0xe59ff3f8
[0000.216] Last reboot was clean, booting normally!
[0000.221] Sdram initialization is successful
[0000.225] SecureOs Carveout Base=0x00000000ff800000 Size=0x00800000
[0000.231] Lp0 Carveout Base=0x00000000ff780000 Size=0x00001000
[0000.237] BpmpFw Carveout Base=0x00000000ff700000 Size=0x00080000
[0000.243] GSC1 Carveout Base=0x00000000ff600000 Size=0x00100000
[0000.249] GSC2 Carveout Base=0x00000000ff500000 Size=0x00100000
[0000.254] GSC4 Carveout Base=0x00000000ff400000 Size=0x00100000
[0000.260] GSC5 Carveout Base=0x00000000ff300000 Size=0x00100000
[0000.266] GSC3 Carveout Base=0x000000017f300000 Size=0x00d00000
[0000.282] RamDump Carveout Base=0x00000000ff280000 Size=0x00080000
[0000.288] Platform-DebugCarveout: 0
[0000.292] Nck Carveout Base=0x00000000ff080000 Size=0x00200000
[0000.297] Non secure mode, and RB not enabled.
[0000.302] BoardID = 3448, SKU = 0x0
[0000.305] QSPI-ONLY: SkipQspiOnlyFlag = 0
[0000.309] Nano-SD: checking PT table on QSPI …
[0000.313] NvTbootFailControlDoFailover: Doing failover: NvTboot partition 1 is corrupted (ec=0x12).
[0000.322] NvTbootFailControlDoClobber:
[0000.325] Current BFS=0
[0000.328] No write function to write to current BFS 0
[0000.332] Clobber: returns e=0x1
[0000.335] - failover failed; Continuing with bad image …
[0000.341] Read PT from (2:0)
[0000.371] PT crc32 and magic check passed.
[0000.375] Using BFS PT to query partitions
[0000.381] Loading Tboot-CPU binary
[0000.409] Verifying TBC in OdmNonSecureSBK mode
[0000.419] Bootloader load address is 0xa0000000, entry address is 0xa0000258
[0000.426] Bootloader downloaded successfully.
[0000.430] Downloaded Tboot-CPU binary to 0xa0000258
[0000.435] MAX77620_GPIO5 configured
[0000.438] CPU power rail is up
[0000.441] CPU clock enabled
[0000.445] Performing RAM repair
[0000.448] Updating A64 Warmreset Address to 0xa00002e9
[0000.453] BoardID = 3448, SKU = 0x0
[0000.456] QSPI-ONLY: SkipQspiOnlyFlag = 0
[0000.460] Nano-SD: checking PT table on QSPI …
[0000.465] NvTbootFailControlDoFailover: Doing failover: NvTboot partition 1 is corrupted (ec=0x12).
[0000.473] NvTbootFailControlDoClobber:
[0000.477] Current BFS=0
[0000.479] No write function to write to current BFS 0
[0000.484] Clobber: returns e=0x1
[0000.487] - failover failed; Continuing with bad image …
[0000.492] Loading NvTbootBootloaderDTB
[0000.559] Verifying NvTbootBootloaderDTB in OdmNonSecureSBK mode
[0000.630] Bootloader DTB Load Address: 0x83000000
[0000.635] BoardID = 3448, SKU = 0x0
[0000.638] QSPI-ONLY: SkipQspiOnlyFlag = 0
[0000.642] Nano-SD: checking PT table on QSPI …
[0000.646] NvTbootFailControlDoFailover: Doing failover: NvTboot partition 1 is corrupted (ec=0x12).
[0000.655] NvTbootFailControlDoClobber:
[0000.658] Current BFS=0
[0000.661] No write function to write to current BFS 0
[0000.665] Clobber: returns e=0x1
[0000.668] - failover failed; Continuing with bad image …
[0000.674] Loading NvTbootKernelDTB
[0000.740] Verifying NvTbootKernelDTB in OdmNonSecureSBK mode
[0000.811] Kernel DTB Load Address: 0x83100000
[0000.815] BoardID = 3448, SKU = 0x0
[0000.819] QSPI-ONLY: SkipQspiOnlyFlag = 0
[0000.823] Nano-SD: checking PT table on QSPI …
[0000.827] NvTbootFailControlDoFailover: Doing failover: NvTboot partition 1 is corrupted (ec=0x12).
[0000.836] NvTbootFailControlDoClobber:
[0000.839] Current BFS=0
[0000.841] No write function to write to current BFS 0
[0000.846] Clobber: returns e=0x1
[0000.849] - failover failed; Continuing with bad image …
[0000.856] Loading cboot binary
[0000.972] Verifying EBT in OdmNonSecureSBK mode
[0001.014] Bootloader load address is 0x92c00000, entry address is 0x92c00258
[0001.021] Bootloader downloaded successfully.
[0001.025] BoardID = 3448, SKU = 0x0
[0001.028] QSPI-ONLY: SkipQspiOnlyFlag = 0
[0001.032] Nano-SD: checking PT table on QSPI …
[0001.036] NvTbootFailControlDoFailover: Doing failover: NvTboot partition 1 is corrupted (ec=0x12).
[0001.045] NvTbootFailControlDoClobber:
[0001.049] Current BFS=0
[0001.051] No write function to write to current BFS 0
[0001.056] Clobber: returns e=0x1
[0001.059] - failover failed; Continuing with bad image …
[0001.064] PT: Partition NCT NOT found !
[0001.068] Warning: Find Partition via PT Failed
[0001.072] Next binary entry address: 0x92c00258
[0001.077] BoardId: 3448
[0001.081] Overriding pmu board id with proc board id
[0001.086] Display board id is not available
[0001.090] BoardID = 3448, SKU = 0x0
[0001.094] QSPI-ONLY: SkipQspiOnlyFlag = 0
[0001.097] Nano-SD: checking PT table on QSPI …
[0001.102] NvTbootFailControlDoFailover: Doing failover: NvTboot partition 1 is corrupted (ec=0x12).
[0001.111] NvTbootFailControlDoClobber:
[0001.114] Current BFS=0
[0001.116] No write function to write to current BFS 0
[0001.121] Clobber: returns e=0x1
[0001.124] - failover failed; Continuing with bad image …
[0001.230] Verifying SC7EntryFw in OdmNonSecureSBK mode
[0001.286] /bpmp deleted
[0001.288] SC7EntryFw header found loaded at 0xff700000
[0001.476] OVR2 PMIC
[0001.478] Bpmp FW successfully loaded
[0001.482] BoardID = 3448, SKU = 0x0
[0001.485] QSPI-ONLY: SkipQspiOnlyFlag = 0
[0001.489] Nano-SD: checking PT table on QSPI …
[0001.493] NvTbootFailControlDoFailover: Doing failover: NvTboot partition 1 is corrupted (ec=0x12).
[0001.502] NvTbootFailControlDoClobber:
[0001.505] Current BFS=0
[0001.508] No write function to write to current BFS 0
[0001.512] Clobber: returns e=0x1
[0001.515] - failover failed; Continuing with bad image …
[0001.522] WB0 init successfully at 0xff780000
[0001.526] Verifying NvTbootWb0 in OdmNonSecureSBK mode
[0001.531] Set NvDecSticky Bits
[0001.535] GSC2 address ff53fffc value c0edbbcc
[0001.541] GSC MC Settings done
[0001.544] BoardID = 3448, SKU = 0x0
[0001.547] QSPI-ONLY: SkipQspiOnlyFlag = 0
[0001.551] Nano-SD: checking PT table on QSPI …
[0001.555] NvTbootFailControlDoFailover: Doing failover: NvTboot partition 1 is corrupted (ec=0x12).
[0001.564] NvTbootFailControlDoClobber:
[0001.568] Current BFS=0
[0001.570] No write function to write to current BFS 0
[0001.575] Clobber: returns e=0x1
[0001.578] - failover failed; Continuing with bad image …
[0001.584] TOS Image length 53680
[0001.587] Monitor size 53680
[0001.590] OS size 0
[0001.605] Secure Os Aes-CMAC Verification Failed!
[0001.609] Error in NvTbootValidateTOS [18]
[0001.613] Validation of secure os failed!
[0001.617] TOS partition is corrupted!
[0001.621] *** Set to failover in the next boot ***
[0001.625] NvTbootFailControlSetClobber:
[0001.629] *** Rebooting ***
[0000.157] [L4T TegraBoot] (version 00.00.2018.01-l4t-8728f3cb)
[0000.162] Processing in cold boot mode Bootloader 2
[0000.167] A02 Bootrom Patch rev = 1023
[0000.171] Power-up reason: software reset
By comparing with successful startup logs：
error log is:
[0001.605] Secure Os Aes-CMAC Verification Failed!
[0001.609] Error in NvTbootValidateTOS [18]
[0001.613] Validation of secure os failed!
[0001.617] TOS partition is corrupted!
[0001.621] *** Set to failover in the next boot ***
[0001.625] NvTbootFailControlSetClobber:
Can anyone help me discover the reason?