Hi tankliuhao,
Are yoy using the devkit or custom board?
There are some similar issue as yours.
Please refer to the following thread to check if they could help
The nano does not turn on today
Jetson nano 4g b01 not boot PT: Partition RBL NOT found!
Upgraded to Jetpack 4.6 on 5 Jetson Nanos 2 GB, now 4 won't boot
It looks something in QSPI has been modified.
You might need to re-flash with SDKM on standalone Ubuntu 18.04 host PC.