I found that "prl_iphone_proxy" service can not start properly for iPhone Parallels Mobile on the build 5.0.9344.
But, I fixed it by moving the prl_iphone_proxy file from "/Library/Parallels/Parallels Service.app/Contents/PlugIns/Parallels Network Start.app/Contents/MacOS" to "/Library/Parallels/Parallels Service.app/Contents/PlugIns/Parallels iPhone Proxy.app/Contents/MacOS".
I'm not sure what I did was right solution, but it worked.
Please check it and fix the install related problem.
But, I fixed it by moving the prl_iphone_proxy file from "/Library/Parallels/Parallels Service.app/Contents/PlugIns/Parallels Network Start.app/Contents/MacOS" to "/Library/Parallels/Parallels Service.app/Contents/PlugIns/Parallels iPhone Proxy.app/Contents/MacOS".
I'm not sure what I did was right solution, but it worked.
Please check it and fix the install related problem.