iphone 4s stuck in recovery mode

my iphone 4s is in recovery mode, this happened after i shut my phone off during a software update. i've tried to hold the middle and top botton at the same time too get it out of recovery mode but it just goes back to the same screen (connect phone to itunes). im running off ios 7. ive tried to use different chargers, my itunes is the latest verision, and ive tried resetting my computer (mac). i dont want to lose all my data by restoring my phone and i didnt back up my phone to my computer. ive been trying to figure out my problem by googling everything but i cant seem to get my phone out of recovery mode. im thinking i might have messed the software up by turning my phone off while doing an update and it is forcing me to restore the phone. i have an appt at the genuis bar in a few days but would rather see if someone on here could help me out instead of driving an hour to this store.

hoping someone will be able to help...