Thinkpad T420，BIOS 降级1.46 ，自带白名单

********************************************************************** * * * NOTES ON CUSTOM START UP IMAGE * * ------------------------------ * * * * THIS VERSION OF THE FLASH UPDATE PROGRAM GIVES THE OPTION OF * * REPLACING (OR ELIMINATING) THE DEFAULT "LENOVO" IMAGE THAT IS * * DISPLAYED DURING SYSTEM START UP. * * * * GUIDELINES FOR CUSTOM START UP IMAGE: * * * * 1. THE IMAGE FILE SIZE IS LIMITED TO 30KB. * * 2. RESOLUTION OF THE IMAGE SHOULD BE LESS THAN 640X480. * * 3. VALID FORMATS FOR THE IMAGE ARE AS FOLLOWS: * * BITMAP (.BMP) FILE FORMAT * * JPEG (.JPG) FILE FORMAT * * GIF (.GIF) FILE FORMAT * * * * STEPS TO ENABLE CUSTOM START UP IMAGE: * * * * 1. PREPARE YOUR IMAGE AND COPY IT TO THE SAME PLACE WHERE * * WINUPTP.EXE EXISTS. * * 2. RENAME THE IMAGE AS FOLLOWS. * * BITMAP FILE --> LOGO.BMP * * JPEG FILE --> LOGO.JPG * * GIF FILE --> LOGO.GIF * * 3. RUN WINUPTP.EXE AND FOLLOW INSTRUCTIONS. * * * * AFTER YOU UPDATE THE BIOS ON YOUR SYSTEM, YOUR LOGO WILL * * APPEAR ON THE STARTUP SCREEN. * * * **********************************************************************