I own a Samsung SCH-I545 Galaxy S4 and can not do update via Kies. It says:
Software update is temporarily unavailable. Try again later.
The phone is sent by my uncle from America and I am from Romania. The phone does not have root. I tried to update via Odin, but it fails too.
What can I do to Update my Galaxy S4 to Android 4.3? Thank you very much!