What is easiest method to recover Apple iphone 5S?

My Apple 5S was wiped using the iphone buttons. Now iTunes will not recover the iphone, iTunes says "software not available". Further the iphone wants a passcode, and I never used one before.

How may I recover the iphone software?

Iphone storage is not adding up?

When I go to Settings>Usage it only adds up to around 3 GB but the phone says I have used 11 GB. I tried setting my phones time back to see if there would be phantom photos in the recently deleted album but there were not. I don't know what else to do and I'm getting really frustrated any ideas?

Is there a way to keep your old iphone 4 going as long as possible while you are in middle of fixing all your cars problems?

Hi

was wondering if there was a way to give your old iphone 4 as long as possible because its very slow at times. It also crashes out internet too and sometimes Wi-Fi doesn't work properly but thatd depend on place too.

really should get a iphone 6 onwards but not in a position at moment because car needs alot of work at moment and got to fix all problems first and it could be 6-12 months before you see a end to the problems,

so got to fix all problems before a updated model iphone and could be 6 months or more before you may see a end to problems of a older higher mileage vehicle or might you never see a end if a cars got high mileage

Canceling the iCloud storage plan subscription?

Exchanging iPhone 6 for iPhone 7. Iphone 6 lacks 4GB to do iCloud backup. Had to buy $1 plan a month with 50GB. IPhone 7 has I believe a minimum of 20GB extra storage compared to iPhone 6. I only need the extra 4GB. So if I cancel my iCloud storage plan will any 4GB extra data be deleted that I received with the 50GB storage or will it still be filled by iPhone 7's 32GB storage?