Hi, I'm having a similar issue and would be grateful for any help provided.
I updated my iPod touch last night and during the update (while connected to a PC) it flashed an error code and now the device is stuck in recovery mode.
I had done a backup to the computer, however, the issue is that I have audio notes on my iPod that I suspect will be erased (via iTalk app). If I understand correctly, such data does not get backed up (and because of the large data usage wasn't backed up to iCloud) and if I do restore my device I will lose the data.
I've tried TinyUmbrella and a whole array of programs to kick the device out of recovery mode. I've also tried these programs on both a mac and a PC. My iTunes is current on both computers. I've also tried Wondershare Dr. Fone in order to see if I could somehow access the data and download it.
If anyone has advice about how to either a) get it out of recovery mode or b) get to the audio files and download them I would be eternally grateful.