Downgrade Galaxy Grand Prime SM-G530H to Kitkat

I upgraded my SM-G530H to 5.0.2 via the phone Software Updater a long time ago. Now I want to downgrade it and flash the stock 4.4.4 ROM via Odin but it fails with this log Added!! Odin v.3 engine (ID:10).. File analysis.. SetupConnection.. Initialzation.. Get PIT for mapping.. Firmware update start.. aboot.mbn NAND Write Start!! FAIL! (Auth) All threads completed. (succeed 0 / failed 1) After some search people say the ROM must have the same baseband version to flash. But I can't find any Kitkat ROM on SamMobile that match my baseband (it's looks like Kitkat baseband is different from Lollipop's one) So anyone can share a method to downgrade to stock Kitkat on SM-G530H? I had previously installed a custom recovery (TWRP 3.1.0) and my baseband version is G530HXCS1BQA1