Introduction to various USB flash drive boot modes
1. USB-HDD: hard disk emulation mode, DOS boots to display C: drive, HP U disk formatting tool uses this boot mode. This mode is highly compatible, but it won't boot for some computers that only support USB-ZIP mode.
2. USB-ZIP: Large-capacity floppy disk simulation mode, DOS boots to display the A disk, and the USB-ZIP boot USB flash drive made by FlashBoot uses this mode. This mode is the only mode available on some older computers, but it is not compatible with most new computers, especially large USB flash drives.
3. USB-HDD+: Enhanced USB-HDD mode, display C: disk after DOS boot, extremely high compatibility. The downside is that it cannot boot on computers that only support USB-ZIP.
4. USB-ZIP+: Enhanced USB-ZIP mode, supports USB-HDD/USB-ZIP dual-mode boot (depending on the computer, some BIOS may display C: disk after DOS boot, and some BIOS may display A: disk after DOS boot), so as to achieve high compatibility. The disadvantage is that some computers that support USB-HDD will think that the USB flash drive in this mode is USB-ZIP to boot, resulting in a decrease in the compatibility of large-capacity USB flash drives of more than 4GB.
5. USB-CDROM: Disc simulation mode, DOS can not occupy disk letters after starting, and compatibility is average. The advantage is that it can be installed as if it were a CD-ROM for XP/2003. Generally, the mass production tools corresponding to the specific USB flash drive model/batch number are required to make it, and there are general mass production tools for the U3 disk network.
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Posted on 2/7/2018 3:58:00 PM
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Posted on 3/28/2018 9:28:02 AM
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