Guys, wonder if anyone can help me...?

While connected via SSH and in the middle of editing a system file, I got distracted. Some 10 minutes later, my distraction has become a real problem - so much so, I needed to make a call!, I forgot I was SSh'd in and editing and unplugged the USB to use the phone.....and of course now all I have, is a solid white screen!, oh b*ll*cks!............

My question is, what are the chances of recovering the handset and keeping my data?, can I repair the file I was working on from within Recovery Tool....and info appreciated, before I do a full reset (not desirable in this case, as I actually have data I would like to keep!)