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3DS ROM Tool 1.3



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3DS ROM Tool 3.1
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"rom_tool" is a tool I wrote in light of the recently announced Gateway 3DS. It has three features:

1/ Read 3DS ROMs, and print information about them, including actual ROM file size, and minimum required 3DS FW etc.
2/ Accurately trim 3DS ROMs, and be able to restore them again.
3/ Patch minimum required FW to 1.0.0-0X

Yes you're probably going to ask how I am able to modify parts of the ROM, without breaking the signature. Well the answer is, the data I'm changing isn't covered by the header signature. I haven't been able to test the min fw patch feature (as I don't have a Gateway-3ds card), but it should work. ROM trimming and un-trimming is tested(to trim and un-trim correctly), and works all 3DS ROM sizes, large(4GB) and small(128MB).

HOW TO USE
This is a windows command line tool, so you have to use cmd .

View ROM Info:
rom_tool -i Test.3ds

Trimming:
rom_tool -t Test.3ds

Un-trimming:
rom_tool -r Test.3ds

Patching Required FW Version to 1.0.0-X:
rom_tool -p Test.3ds

Change log (1.3):
*Fixed a bug in 1.2 that corrupted ROMs larger than 4GB when attempting to restore them.
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