Here is a stock rom for your Y210D, U8685D-1(Y210D) bUILD 854SP01
You can download it from Click Here
And here is how to flash your stock rom Stock Rom Tutorial.
Keep in mind you will have to root the phone again and also install Custom Recovery, please use this from our blog to root your phone Click Here Root 1 or Here for root method 2 Root 2 .
The Root 1 method will download drivers...