What can I do when my MSI GT660R failed to boot after updating BIOS system?

   

Original MSI GT660R battery 11.1V, 7800mAh

When BIOS updating fails causes the computer non-bootable, you can recover the failed BIOS by the steps below.

Preparation:
1. Prepare a bootable USB flash drive.
2. Download the latest BIOS file from the MSI official website at www.msi.com, and then decompress the file.
3. Copy the AFUDE238.exe and the BIOS file to the bootable USB flash drive

BIOS recovery steps: 
1. Power off the system.
2. Set the Multi-BIOS switch to the functional BIOS ROM.
3. Insert the bootable USB flash drive you have made to the USB port.
4. Boot the computer into the bootable USB flash drive.buy MSI GT660R battery
5. Set the Multi-BIOS switch to the failed BIOS ROM.
6. Execute the below command to flash the BIOS:
For example: AFUDE238 EXXXXIMS.XXX
7. Restart the computer after the BIOS flashing is complete.

Source from www.msi.com