the error code is (80028f14)

my friend sent me the latest rebug firmware and it wouldnt let me load games anymore so then i used rogero 3.55 downgrader and now im on rogero 3.55 and it wont let me play games from hdd i get that error. and everytime i try to install the newest rogero firmware it says the data is corrupted..... so this is where im at right now