I found Solution after i formatted my phone totally
i guess you need to download the ios 11.0.3
then you have to put your iphobe in recovery mood and once itunes ask you that u wanna restore or update you need to press update plus SHIFT on your laptop computer so it will give you ability to choose the file you downloaded for ios 11.0.3 ........... so once it update your phone .......it will work without losing any data