SamSignRem

Bug Fixes

Fixed ustar Archive Parsing (Magic Header)

Resolved a regression where .tar files using the ustar (Unix Standard TAR) format were rejected with "Invalid Magic" errors.

The parser should recognize standard ustar headers (including the ustar\000 magic string) and properly skip 512-byte padding blocks, making valid AP/BL files no longer "corrupt"

Corrected LZ4 Stream Handling

Fixed a critical failure when uploading lz4 compressed partitions (e.g., boot.img.lz4, dpm-verified.img.lz4...)

The tool now correctly processes the Samsung-specific lz4 framing, preventing the -5 receive error during the "Upload Binaries" phase

SamSignRem

The tool now detects, extracts, patches, and repacks Samsung firmware archives (AP_.tar.md5 and BL_.tar.md5) found in the same folder

Automatically deletes temporary extraction directories (temp_AP_...) and intermediate files after a successful repack, keeping the workspace clean

Output files are now named based on the input archive (e.g., AP_A346_..._Patched.tar), rather than "work_folder"

Added sr_untar function to handle archive extraction natively within the application using QProcess

If no archives are found, the tool will default to processing loose .lz4 files in the current directory

SamSignRem

Now compatible with Linux, tested on Fedora, while maintaining Windows support

Removed dependency on bundled lz4.exe and Windows Start Menu scanning for 7 Zip. The application now uses system native lz4 and tar tools

Replaced manual memory management with Qt containers such as QByteArray, reducing the risk of memory leaks and buffer overflows

Migrated legacy Windows specific file handling to QFile for improved support of large firmware images