Resetting an iPhone's password when it's in set up mode?

My iPhone 4S was freaking out all night and I decided to restore it as an attempt to fix it. The next day, the phone was finished restoring. My friend and his little brother came over. His little brother thought it would be funny to put in a random code, so you can imagine how annoyed I was when my phone asked for the password and the fact that he forgot what the code was. Also, I won't be able to restore the phone again because it won't connect to my laptop and I wouldn't be able to restore it while it's still in set up mode.

Recording in flight audio, GA?

I'm going on a flight in a 172RG soon and have some cameras ready to mount. But, I'd also like to record the audio. I have been debating between the Smartphone digital audio adapter (link below) and sort of making my own. The smartphone adapter is much more expensive but at least i know it would work with my phone. Would my homemade setup (links below) work as well? I had heard the voltages or other audio problems would prevent it from recording well on an iPhone. I guess my real question is, does the smartphone adapter have some sort of converter or device that makes it able to record on smartphones or is it just highly priced? Does anybody have any experience with this? If so, could you post a sample video? Thanks!

All in one adapter (expensive):http://www.mypilotstore.com/mypilotstore/sep/8650

Homemade: http://www.amazon.com/...PDKIKX0DER
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http://www.amazon.com/...PDKIKX0DER

Itunes won't backup my iphone 5?

I've never backed up my iPhone on my new (refurbished) 2012 macbook pro. Every time I try it says 'error can't backup due to unknown error'. I heard it could be because of a corrupted photo so i deleted All my pictures and that didn't work. I tried restarting both my iPhone and macbook. My phone will sync, but it won't backup. I tried it on my old macbook and the same error message still comes up. I don't know what to do now. I plan on taking it to my campus apple care but I don't know what they can do. Thanks in advance!

Added (1). It syncs and backsup with my ipad no problem if that helps at all

How to unlock an iphone 5s to put it on another carrier?

So i bought a phone from my friend but i didn't know it was locked but i want to put it o a different carrier. The phone is payed off already and my friend got the iphone 6 now so when i try to call to unlock it they talk about the ihpne 6 even tho i give the iphone 5 imei. So is there any other way i can? I've heard jailbreaking it will unlock it but i'm not sure. Any help i would appreciate that.

IPhone 6s glitch or battery problem?

I just got the iPhone 6s a little over a week ago and as of recent, I've noticed that when I charge my phone, it dies quickly. I also noticed that when I charge it, it stays on one percentage for a long while and when restarted, it changed to its actual percentage which is always higher than the previous. I also noticed my phone got really hot when I was in an area where signal could not be reached. What is wrong with my phone?