How the heck do I get out of recovery mode??

Okay, so first of all, I know that there are other threads dealing with this subject, but im hoping to get an answer to my rather complex problem.

situation: i was taking pictures with my 4s - ios 7, when it suddenly switched off. First i thought, well that happened before, so i tried to turn it back on, but i couldnt, since the itunes logo plus the usb icon showed up.

then i plugged my device into my pc, and ran itunes, it seemed easy enough, I started restoring the phone. That did not end well tho, because i got an error message. error nr.27, which as i know from hours of researching on the web, is not even known by apple itself. so after i got the error msg, i was still positive, and i gave it an other shot. then another one and so on. after a while i started searching for alternative solutions on the internet. pretty sure I tried most of it, so let me list the things i tried.

- tinyumbrella

- redsn0w

-limera1n

- reiboot

-ireb

- pushing home and lock button in different orders and had them pushed down for minutes, at the same time, separately, so on.

- plugged it into three different computers, and at least 7 different usb ports.

- played around with the host files [not sure how much good that did, since i was following instructions from youtube, and had no idea what i was doing]

- turned off my eset nod for 30 minutes

- turned off my firewall

- updated my itunes, and my windows as well

I think this more or less sums up my 48-hour struggle with my phone, and im quite sure, that i know the answer already... but ill just ask anyway: is there ANY way that this is a software problem, and not something that requires service? or can my phone even be saved?

please someone out there help me, because im really getting desperate here,

Nori xx