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Sandisk U3 ISO Hack

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Step 1

Get your hands on a SanDisk U3 USB Flash Drive

Setp 2

The way it is able to autorun is that it has a 6Mb CD drive emulator in firmware. So this emulator uses a CD iso image that is 6Mb in size (or smaller I have found). So now we need to replace the Iso with one of our own. This is done with a modded version of the SanDisk update utility called "LPInstaller.exe". Normally this exe goes to the san disk web site to get the latest iso image to do updates on your usb drive. It will now also install a new iso from the local directory if the iso is called "cruzer-autorun.iso". You can also run the LPinstaller without a local iso and put your usb drive back to defaults.

This is what you do next: Copy the contents of the step2.zip file to a (any) directory. It contains two files: LPInstaller.exe (the modded one) and cruzer-autorun.iso (switchblade replacement)

Then you insert your USB drive (SanDisk) and run LPinstaller. It will replace the iso on your USB drive.



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