========================================================= DOSFLASH.EXE version 1.14.00 ========================================================= The DOS Flash utility is designed to update the computer system firmware (BIOS) from a DOS, FreeDOS, or similar environment. Windows command line is not supported. The DOS Flash utility consists of the executable file (DOSFlash.exe) and a driver file (FlshUefi.cpu) specific to updating the system BIOS. They must be present in the same directory. DOS Flash also supports updating the initial graphics display logo to a custom image. BIOS VERSION UPDATE: ____________________ DOS Flash requires a BIOS binary image file included in a BIOS SoftPaq release in order to update the System BIOS. See the DOS Flash folder for the correct files. Not all HP Desktop systems are compatible with this version of the DOS Flash utility. If the utility is run on a system that does not support it, an error message will say so. The BIOS SoftPaq release package for that system will include the correct DOS Flash tool (typically, Flashbin.exe and flsh.cpu). DOS Flash can update a system BIOS without requiring the administrator to enter a Setup password if the unit has not already been assigned a Setup password. However if a Setup password is set on the target PC, then DOS Flash will require password verification before allowing a BIOS update, or the process will report an error. The Setup password must be provided in the command line when the DOS Flash utility is executed, using the /p option. See below for syntax description. CUSTOM LOGO IMAGE UPDATE: _________________________ DOS Flash allows replacing the standard HP logo image with a custom image provided by the user. Valid image files are JPEG or uncompressed BMP (bitmap) images up to 1024 x 768 resolution. BMP (bitmap) format images are limited to 16 bpp. Also, the maximum file size differs from system to system, but will be between 22KB and 32KB. The command line switch "/I " followed by the image filename will write the custom logo to the BIOS. When using DOS Flash to change the logo, the System BIOS is not updated at the same time. The custom image can be deleted (restoring the standard HP logo) with the "/I delete" option. COMMAND LINE SYNTAX: ____________________ UPDATE SYSTEM BIOS: dosflash [/p <password>] [/f flshuefi.cpu <BIOS family>] DOS Flash will search the current directory for the System BIOS binary. If more than one are present, the latest BIOS image file (highest version number) compatible with the target PC will be used. The /f option is used when needing to suppress any user prompts, for instance when automating a mass deployment using Altiris. BIOS family is listed in BIOS Setup / System Information / System BIOS before the version number (e.g. J52), and is also the first part of the binary filename. UPDATE STARTUP IMAGE: dosflash /I {<imagefile> | delete} If the imagefile file size exceeds the maximum for the target PC, a File Too Large error is reported, along with the maximum file size supported for the system. USE CASES: __________ dosflash This will attempt to update the System BIOS. Assumes no BIOS Setup password is set. dosflash /p Admin123 This will attempt to update the System BIOS using ?Admin123? as the BIOS Setup password for authentication. dosflash /p Admin123 /I hplogo.jpg This will update the system startup logo using ?hplogo.jpg? as the image, and uses ?Admin123? to authenticate the BIOS Setup password. dosflash /Image custom.jpg This will update the system startup logo using ?custom.jpg? as the image. This syntax implies that there is no BIOS Setup password set. dosflash /I delete This will delete a custom startup logo from the system. The default HP logo will be used after reboot. This syntax implies that there is no BIOS Setup password set. dosflash /I DELETE /P Admin123 This will delete a custom startup logo from the system. The default HP logo will be used after reboot. Uses ?Admin123? as the BIOS Setup password for authentication. dosflash /f flshuefi.cpu J52 This will update the System BIOS with the binary in the current directory without pausing for user input. dosflash /I custom.jpg /p Admin123 /f flshuefi.cpu J52 This will update the system startup logo using "custom.jpg" as the image, authenticating with a BIOS Setup password of "Admin123" and suppressing prompts. ERROR LEVELS: _____________ 0 - No errors 4 - Could not open input file 16 - Unsupported system type 44 - Could not open flshuefi.cpu 45 - All other errors: wrong password, file size too big, image dimensions too large _____________________________________________________________________________ Copyright (c) 2018 HP Development Company, L.P. Product names mentioned herein may be trademarks and/or registered trademarks of their respective companies.
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