How to flash my dead windows phone?

[Uzzwal Chhetri]

I upgraded my Lumia 620 to windows 10 technical preview. Bt it didt worked well. So i downgraded it using Windows Phone Recovery tool. Bt it got bricked when downgrading from W10 Technical Preview to Windows 8.1.... Any suggestion to recover my phone?
..

 

[srikanth reddy4]

Again try to connect to the WPRT and select the option my device wont turn on

 

[EL620]

I have used Lumia recovery tool a few times on my 620 with Windows 10 installed to roll back and never got bricked.

So is Windows phone recovery tool the problem?

 

[tano_mini]

Did you try with recovery tools??

 

[yoitsbenvo]

Windows Phone Recovery Tool receives several 'unbrick my phone!' updates

Download and update the recovery tool. It unbricked my Lumia 1520 !

 

[technogeek019]

dude your phone is hardbricked you need to get it repaired at a phone shop or use a usb jigg if you are technically inclined

 

[Sinjin Lewis]

Use the Flashing tools from the links and tutorial found on the XDA-Developers site to re-flash a fresh image back to your original Denim or up to Denim if you only had Cyan or Amber or Black found here:
hxxp://forum.xda-developers.com/showthread.php?t=2515453 (change the hxxp to http)