Lz4: Can we use this to uncompress .lz4 files? (URGENT)

[phoenix277yt]

I urgently require a stock android flash on my phone and the stock firmware was compressed in .lz4. I need to uncompress it back to a .img file to mount it, please reply as quick as possible since I require this urgently.

[jinfeihan57]

@phoenix277yt try this : https://github.com/szcnick/p7zip

[phoenix277yt]

@phoenix277yt try this : https://github.com/szcnick/p7zip

Thanks but it corrupted a csc file...
It's ok for my normal purposes like shader development but my phone is crucial to my daily life so I kinda need a foolproof and reliable method.
fyi - the firmware is from samsung, normal documents get decompressed flawlessly, its only the firmware files and my phone doesent recognize those, not even odin can help (samsung flash tool)

I tried older firmware from 2019 and February of 2020, it still didnt decompress correctly and managed to corrupt at least 1 file.

I guess its just something with samsung's encoding, but still of you guys find a solution share it with me.

[jinfeihan57]

" but it corrupted a csc file... " what do you mean?
csc file is a text document， decompression is not required.

[phoenix277yt]

" but it corrupted a csc file... " what do you mean?
csc file is a text document， decompression is not required.

Yes but its compressed into an img file and then into a lz4 file. When I tried this I used the program you gave me to decompress it and then 7zip to decompress it again to get to the csc file I need to modify. And somewhere in the process there's a problem which corrupts the file. 7zip is working fine so the problem is with samsung encoding or the decompression of lz4.

[Cyan4973]

seems like a local corruption issue.