Samsung has officially seeded the Android 5.0.1 Lollipop (build LRX22C.I9500XXUHOA7) update for Galaxy S4 I9500 in Russia via a hefty OTA that weighs in at 1.05 GB. But it seems like some people are having issues while installing that package. Therefore, you can download the full XXUHOA7 firmware as a backup image (Nandroid) which can easily be flashed by restoring it in CWM.
