desperately need advice for two day old quail chick

Hi all,
 I incubated 8 quail eggs, with only one chick hatching.  (6 not fertilised and one dead with most of the yolk unabsorbed) She was very wobbly after hatching and had a curled foot which I have mostly corrected.  However, she did look very premature with very little covering and very very thin.  Since Saturday, she has drunk ok by herself but not eaten.  I have tried tapping, boiled egg yolk, using a syringe with some very runny mash and have ground up the chick crumb and put it in a syringe.  I am struggling to get her strength up.  She is able to walk, but stumbles and falls over.  My big concern is what can I do to help her.  I am aware that the outlook is not promising, but I want to try everything I possibly can.  I have spent hours and hours online, but there is very little for quails. Any suggestions?
Thank you so much for anything you can offer.
Ruth

Hi ANHBUC,
thank you so much for your advice, unfortunately, she died which we are very sad about.  I will remember your advice for next time though.  Thanks for your help.

Hi ANHBUC,
it's funny you mention the eggs, because that was our second attempt with the same breeder so we will wait awhile and try another.  It's crazy how attached you become so quickly.  My boys and I are gutted, but will keep honey close by for another time.  Thanks again for the advice

Hi,
I am not sure how to change my profile but I am near Lancaster.
Thanks for any suggestions on where to get decent eggs 
Ruth

   Thank you ANHBUC, I have successfully done it!

   well, I will try when I have something to post pics of!