Cydia doesn't respect the Settings->Sounds Keyboard Clicks toggle. As seen here or here. Other jailbreak apps like iFile have the same problem like here. In case other people on the web are looking for a solution I thought I'd post my success. The reason is that these apps are looking at the var/root/library/preferences which does not contain a com.apple.preferences.sounds.plist. so it uses the default value of On for the keyboard clicks. Setting a symlink for the com.apple.preferences.sounds.plist in the root preferences directory to point to the mobile preferences directory fixes the issue. Here is the file you are linking. I did all this on my iPhone using iFile but you could just as easy do it using SSH or whatever. Navigate to mobile preferences directory. Copy/Link the com.apple.preferences.sounds.plist Paste the link in the rooth preferences directory. Here is the root preferences directory showing the symlink in blue.