Can I jailbreak my iPhone 4 iOS 6.1.3?

Is there a jailbreak out there for iOS 6.1.3! I've tried everyone I could find and they're all scams! Someone help me! Tell me one that isn't a scam that actually works!

How to transfer my music library from my iPhone to my Laptop?

Hi, my laptop broke and had to re-formatted, again. On it I had all of music which is the first time its ever been on one computer with no back up.
I have 4, 807 songs on my iPhone, but only 532 bought through iTunes, most have been through CDs (no longer with me) with a couple of cheeky Youtube conversions.
How am I able to transfer these songs on my iPhone onto my laptop? I've been trying for a few hours, and all I've managed to do is copy a word document listing all the songs onto my laptop.
Any help would be greatly appreciated!

Why won't my iPhone call out or receive any calls?

My iPhone 4's carrier is on EE and I when I try to ring out the call ends straight away. I can't receive or send out text messages and when I put my sim in it says EE but after half an our it says no service still with the 3G in the top left corner on my screen. I went to an EE shop and they said to contact you because the problem has nothing to do with them it's to do with apple. My iPhone IS second hand I did NOT buy it brand new. I searched about online and went on a website where it check if your phone is blocked or black listed and it came back that my iPhone should be working. I've tried other network sims and it still doesn't call out. Not even to EE's free top up service. So I know it has nothing to do with credit. Any help please?

iPhone 4, iOS 6.

IPhone 5 left earphone speaker not working

I've looked at various forums and have tried everything. I've tried several pairs of earphones so I know it's the phone itself. I've taken off the case so it's not that. I've set the L/R bar toward the middle, turned mono-audio off, reset the phone several times, went to its first settings again, taken the earphones in and out dozens if times, and blew and sucked the life out of the jack. I just got this phone not too long ago and it came this way, is there anything else I can do?