You said "not functioning" but you also said that you "tried recovery option" so please give more details.
When you said "not functioning" what is it that you are referring to? Is it that the screen does not show anything at all?
If it is not showing anything at all, how were you able to try recovery option? If by recovery option you meant Android recovery.
Lastly, other than trying recovery option, what else have you tried so far? Did you happen to try charging the phone?