Chosen Solution
Hello guys Hello guys I tried to update my iphone (5s) by laptop and itunes after downloading the last version of ios ( 9.3.4 ) start installation process, after iphone restarting for preparing install process ( white screen with iphone logo ) here i got error said unable to update this iphone, and my iphone stay with that white screen and can not connect with computer.
Look at this: https://support.apple.com/en-us/HT201263
