Yet Another Flash File (System) Editor YEAH!

A GUI utility for reading, editing and creating YAFFS2 images in Windows.
Written in Qt 4.8.1. Links against official YAFFS code (included in source tree) for ECC algorithm.

Features

• Create new YAFFS2 image
• Open existing image
• Export files/directories from image
• Import files and directories into image (permissions inherited from parent directory, dates created/modified/accessed set to current date & time)
• Delete files
• Edit filenames
• Edit permissions
• Edit user and group ids
• Edit symbolic link aliases
• ECC (Error Checking & Correction) support

• Added import dialog to choose to import file(s) or a directory
• Added support to import multiple files
• Added support to import 1 directory at a time (using dialog)
• Added drag & drop importing (which supports multiple directories & files!)
• Added support to delete more than one item at a time
• Added summary dialog after saving an image
• Added text below icons in toolbar at the request of varun.chitre15 @ XDA!

• Only handles YAFFS2 images with page size of 2112 (2048 chunk + 64 spare)
• Only edit 1 file at a time (no bulk changing permissions)
• Can't save changes to opened image, only save as...
• Can't create directories (but can import directories!)
• Can't create symbolic links
• Can't export symbolic links
• No support for hard links
• No support for special files (device files, etc)
• No option to disable ECC (always on)
• UI synchronous with file operations so UI freezes when reading/writing

Flash images created with this utility to your device at your own risk.