Here is PS3 Game Update Manager + FTP Client version 22.214.171.124 homebrew application. This tool will search for update and check it with param.sfo, compare and give you posibility download the updates.
Below is the download along with some updates to the tool as well.
Download: PS3 Game Update Manager + FTP Client v126.96.36.199 / PS3 Game Update Manager + FTP Client v188.8.131.52 (with DLL File) / PS3 Game Update Manager + FTP Client v1.2
Version 1.2 Features:
+ fix a few bugs
+ ftp fully working with openFTP
+ add function check for update from FTp
+ some changes for param.sfo edits
Verison 184.108.40.206 Features:
+ michalss quality
+ nice progress bar
+ ftp experimental
+ pharsing sfo file (reading data from it)
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