jetson nano no booting

I purchased jetson nano before 3 days ago.
First,jetson nano operated normally.
But suddenly it is not operating.
I got following error message using USB-FTDI.
please let me know the reason.

[0000.588] Send command failed with 0x3
[0000.592] CMD8 send failed. Retrying CMD0/CMD8 (0)…
[0000.597] Error mask set in wait for cmd complete with error 0x3 in HwSdmmcWaitForCommandComplete func at 278 line
[0000.607] Command complete wait failed with error 0x3 Interrupt 0x18000
[0000.613] Number of retries left 4
[0000.617] Error mask set in wait for cmd complete with error 0x3 in HwSdmmcWaitForCommandComplete func at 278 line
[0000.627] Command complete wait failed with error 0x3 Interrupt 0x18000
[0000.633] Number of retries left 3
[0000.637] Error mask set in wait for cmd complete with error 0x3 in HwSdmmcWaitForCommandComplete func at 278 line
[0000.647] Command complete wait failed with error 0x3 Interrupt 0x18000
[0000.654] Number of retries left 2
[0000.657] Error mask set in wait for cmd complete with error 0x3 in HwSdmmcWaitForCommandComplete func at 278 line
[0000.667] Command complete wait failed with error 0x3 Interrupt 0x18000
[0000.674] Number of retries left 1
[0000.677] Error mask set in wait for cmd complete with error 0x3 in HwSdmmcWaitForCommandComplete func at 278 line
[0000.687] Command complete wait failed with error 0x3 Interrupt 0x18000
[0000.694] Number of retries left 0
[0000.697] Send command failed with 0x3
[0000.700] CMD55 send failed with error 0x3 in SdIdentifyCard func at 1891 line
[0000.707] SD Identify card failed with 0x3
[0000.711] SdIdentifyCard has failed with error 0x3 in NvTbootSdmmcInit func at 87 line
[0000.719] Sdmmc Init failed with 0x3 error

Please try

  1. Different sdcard
  2. Try to use sdkmanager.

Before error generate, I connected ethernet cable to jetson and I could find the display is off after 30 minutes.

I tested using the new SD card: Kingston SD XC 1 : 32G, but the result is same.
the first sdcard is Sandisk: HC 1 : 64G: which operated in first use.
Is it possible to damage the sdcard port of jetson nano?
I got the same error messages when I turn on jetson without sdcard.
And I tried to use sdkmanager in ubuntu18.04 VM, but there is also errors when flashing to jetson.
Can you tell me what is the reason?
Can I return this jetson nano and get new one?

Sdkmanager cannot work on VM. I think you may need to find a host for it.