Keep trying with the electrolites. It may take a few tries. The red spot where she detached will go away in a day. That is normal. Try a few drops of the electrolite every 30 min or so. Even if she only drinks a drop or two. I got frustrated with one of mine, but after a few tries, I got a few drops in and it did make a difference. I did loose the one that bled and the one that took 4 days to kick free of the shell, but the other 4 are doing well. Try not to worry too much. Duckluck is right about pulling the head and wing out. It gives them the extra push they need to hatch. The one still in the egg needs to stay moist so she can push out of the shell when she is done absorbing the yolk. I had to wrap a couple eggs in wet paper towel to help with that. I also took the eggs out every 2 hours and took a little more shell away. Just a little so they didn't bleed. When they were 3/4 of the way out, I stopped taking shell off and let them do the rest. Moisture is critical untill they are fully out.
We need a pic of the new baby!