Using firmware changed with this tool WILL void your warranty.
Although the tool has been tested, I can't guarantee that it will work.
In the worst case, it will turn your player into a paperweight. Changing
Firmware is not to be taken easy. USE AT YOUR OWN RISK!

Download

H3Mod
This is the basic package, with the core software and the helpfile. You need to to download this, and one or more of the reference files below. You need to have the .NET framework 1.1 or later or later is installed on your machine. See below for links to an explanation and the free .NET installer files.

Download H3Mod (823 KB)

H3Mod Update
This is the upgrade for existing installations. It is the minimal download for new versions, unless the announcement mentions other files.

Download the H3Mod Update (492 KB)

Reference Files. You need the one corresponding to your firmware type.
Future upgrades of H3Mod.exe will use the same bin file, until announced differently.
For H3xx files, you need to download this once with version 2.7.2520 or later.
Download reference.zip (1.3 MB)

For H1xx files, You need to download this once with version 2.0.1901 or later.
Download H1xxreference.zip (915 KB)

For H10 rom files, you need to download this once with version 2.2.2164 or later.
Download H10reference.zip (112 KB)

For H10 mi4 files, 5/6GB version, you need to download this once with version 2.2.2398 or later.
Download H10MI4_5G_reference.zip (2.0 MB)

For H10 mi4 files, 20GB version, you need to download this once with version 2.2.2388 or later.
Download H10MI4_20G_reference.zip (2.2 MB)

For iAUDIO X5 files, you need to download this once with version 2.2.2164 or later.
Download X5reference.zip (590 KB)

For Sansa e200 files, you need to download this once with version 2.7.2577 or later.
Download Sansa_e200_reference.zip (2.0 MB)

For Sansa e200 Rhapsody files, you need to download this once with version 2.7.2623 or later.
Download Sansa_e200R_reference.zip (1.9 MB)

For T10 files, you need to download this once with version 2.4.2239 or later.
Download t10reference.zip (1.0 MB)

For S10 files, you need to download this once with version 2.7.2553 or later.
Download s10reference.zip (1.0 MB)

For U3 files, you need to download this once with version 2.4.2244 or later.
Download u3reference.zip (512 KB)

For insignia DVxG files, you need to download this once with version 2.7.2606 or later.
Download NSDVxG_reference.zip (795 KB)

Help File
Online help for H3Mod in chm format.

Download H3ModHelp.zip (269 KB)

LJConvert, version 1.0.2496
A tool to covert m3u or pls playlist to the pla format used for the T10. See the included help for details. This version published 2006/11/1. Requires the .NET framework 1.1. Installation: just unzip.

Download LJConvert.zip (63 KB)

LJ Mix, version 1.0.2423
A tool to fill your small flash player with a random selection of music from your big collection. See the included help for details. This version published 2006/08/20. Requires the .NET framework 1.1. Installation: just unzip.

Download LJMix.zip (74 KB)

iFormat
A little tool to format text files and play lists to be easy to read in the H3xx text viewer. It has nothing to do with H3Mod, but also requires the .NET framework 1.1. See the included readme.txt for details. This version published 2006/10/31.

Download iFormat.zip (34 KB)

.NET Framework
If you try to start the program and just get an error message, you probably need to install the .NET framework 1.1. You can download it for free from Microsoft. The links are (currently)