Big thanks to Alex, you gave me a hint.
I tried to boot to Monitor ROM Console during switch booting up with a special console connection setting below.
And delete some files in file system, then it worked.
Steps below:
- Console connection settings: Baud Rate – 9600 Data – 8 bit Parity – None Stop – 1 Flow Control – Xon/Xoff
- Selects 0 to boot into the Monitor ROM Console
- cd /cfa0
- cd cfg
- rm config1
- cd ..
- rm mgrinfo.txt
- boot