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RealWnD

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A Real 1:1 Wii NAND Dumper
General
Author(s)pcfree
TypeUtility
Version0.1
LicenseGPL
Peripherals
Wiimote.svg Loads files from the Front SD slot USB mass storage device

Introduction

This program is a 1:1 Wii NAND Dumper based on YaWnD 0.3 with several improvements. All currently available Wii NAND Dumpers misunderstand the IOS_Read() returned error code -12 and cause dumped image file to be different from extracted image of external hardware programmer for de-soldered NAND chip.

After analyzing, the -12 code seems very likely to be ECC error but not simply to be bad block. And most pages with -12 return code might be unmanaged free block (ECC error due to erased but not programmed yet). Zeroing these pages is a bit dangerous. If it happens it's the very first time the ECC error occurred for a good page while dumping, zeros it might cause the dumped image useless.

Besides the -12 code, some people encounters -11 code and stop their dumping. I guess the -11 code might be NAND read timeout and NAND status error. Stopping dumping is not a good idea but zeroing it would be safe. I also provide extra Page Debug Dump for these -11 code for user to analyze it.

For whose NAND dump without -11 code, the RealWnD can help them make 100% 1:1 dump which is exact the same with hardware programmer dump.

Improvement

  • Real 1:1 dump of NAND Flash by processing error code -11 and -12
  • Greatly reduce dump time by opening files once instead of appending repeatedly
  • Add log file for all error pages
  • Change to new style FAT management code for easily compiling
  • Add Debug Dump for -11 code or others for future analysis

Changelog

  • v0.1 (08 May 2009) Initial release.