5120交换机不能正常启动，灌入ios后还是不能正常启动，这是什么情况？

Enter your choice(0-5): 5 Download baudrate is 115200 bps

 Please change the terminal's baudrate to 115200 bps and select XMODEM protocol

 Press enter key when ready Are you sure to download file to flash? Yes or No (Y/N):Y 

Now please start transfer file with XMODEM protocol If you want to exit, Press <Ctrl+X> 

Loading ...CCCCCCCCC 开始 xmodem 传输。 按 Ctrl+C 取消。 100% 14517 KB 6 KB/s 00:36:46 0 Errors Done! 

The file you download is not an application file, please name the file! Load File name : default_file S5120LI-CMW520-R1519.bin

 Free space: 84221952 bytes Writing flash................................................................... ..................................................Done! Done! 

Your baudrate should be set to 9600 bps again! 

Press enter key when ready BOOT MENU 

1. Download application file to flash

 2. Select application file to boot

 3. Display all files in flash 

4. Delete file from flash 

5. Restore to factory default configuration

 6. Enter BootRom upgrade menu 

7. Skip current system configuration 

8. Reserved

 9. Set switch startup mode 

0. Reboot

 Ctrl+F: Format File System Ctrl+P: Skip Super Password Ctrl+R: Download application to SDRAM and Run Ctrl+Z: Access EXTEND-ASSISTANT MENU Ctrl+C: Display Copyright Enter your choice(0-9): 3 Display all file(s) in flash: File Number File Size(bytes) File Name ================================================================================ 1(*) 14866304 s5120li-cmw520-r1519.bin 2 14866304 5210.bin Free space: 69353472 bytes The current application file is S5120LI-CMW520-R1519.BIN (*)-with main attribute (b)-with backup attribute (*b)-with both main and backup attribute BOOT MENU 1. Download application file to flash 2. Select application file to boot 3. Display all files in flash 4. Delete file from flash 5. Restore to factory default configuration 6. Enter BootRom upgrade menu 7. Skip current system configuration 8. Reserved 9. Set switch startup mode 0. Reboot Ctrl+F: Format File System Ctrl+P: Skip Super Password Ctrl+R: Download application to SDRAM and Run Ctrl+Z: Access EXTEND-ASSISTANT MENU Ctrl+C: Display Copyright Enter your choice(0-9): 2 1. Set application file 0. Return to boot menu Enter your choice(0-1): 1 File Number File Size(bytes) File Name ================================================================================ 1(*) 14866304 s5120li-cmw520-r1519.bin 2 14866304 5210.bin Free space: 69353472 bytes (*)-with main attribute (b)-with backup attribute (*b)-with both main and backup attribute Please input the file number to change: 1 Please input the file attribute (Main/Backup/None) m The attribute of S5120LI-CMW520-R1519.BIN keeps main attribute! This operation may take several minutes. Please wait.... Something wrong with the file. Set the file attribute failed! BOOT MENU 1. Download application file to flash 2. Select application file to boot 3. Display all files in flash 4. Delete file from flash 5. Restore to factory default configuration 6. Enter BootRom upgrade menu 7. Skip current system configuration 8. Reserved 9. Set switch startup mode 0. Reboot Ctrl+F: Format File System Ctrl+P: Skip Super Password Ctrl+R: Download application to SDRAM and Run Ctrl+Z: Access EXTEND-ASSISTANT MENU Ctrl+C: Display Copyright