i have an iphone which has a problem on wifi settings and loudspeaker is not functioning
your subject doesn't match your post, why don't you describe your problem and what errors you are getting?
If the issue is with updating the iOS on the device, read the ENTIRE article from which the question was posted.
If the issue is with something else, be specific about the problem that is occurring.
when i enter into settings ang choose general, my software update is missing and there´s no where shows update software, that´s my problem.
READ the entire article from which the question was posted. It clearly explains why the update software function is not available and how to update via iTunes.
Retrieving data ...