windows phone 8 failed update, sad face appears. How to fix it?

I'm having a small problem doing the reset.  The settings aren't rotating. Show a settings symbol and lightning/power sign?   Not moving

i am navin i found a solution for the prob i am lumia 730 user recently updated to windows 10 

while trying to restore it endded with the sad face thing i tried every last queries this site 

finally it just helped windows device recovery tool  u can find the tool in this website 

http://www.windowscentral.com/nokia-software-recovery-tool-available

this teqnique is also not working sir

Try this :D

Turn off the phone, Once the phone is off, Hold the Volume down key then plug the charger (charger should be connected to the power source ",) Once you see the excalmation ( ! ), remove your finger from the button.

Then press the following keys in, Volume Up, Volume Down, Power Key and Volume down. The phone will turn on automatically, this may take several minutes and it will show two gears that are spinning just wait for it to finish.

One more thing all the files on the phone will be deleted but if you have a microsoft account on the phone, check people.live.com to check the contact lists that you have and skydrive for the pictures, that's if you have a microsoft account on the phone.

cheers!

thank you very much

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I tried more and more" I told Ill throw my phone because lost hope but before I throw that phone Ill try last time and I saw your answer :)

But you know something..? I learn something today :)

You can find solution (  just try ) and you Ill get it