Moto X 2014 Dead after 5.0 lollipop OTA Update

Hi guys, i hope someone can help. I have the XT1092 variant of the Moto X with Kitkat out of the box, i upgraded to lollipop 5.0 then to 5.1 all via OTA. I then ulocked the bootloader , rooted the device and installed unofficial version of Euphoria 5.1.1 unfortunately i never backed up the stock rom. I then ran into some issues with call quality, no matter who i spoke to they all complained that my voice was fading in and out. I also noticed that whilst on a call whenever i spoke over the top of someone they were also fading in and out like the volume increased via the earpiece every time i spoke. I believed this to be a hardware issue but wanted to confirm this by going back to stock. So i managed to find the EU version of kitkat 4.4.4 which matched my device, using mfastboot i proceeded to flash each file individually which it happened to be that the downgrade went well, but this still did not fix my issue with the fading in and out during calls. I then had the OTA update come through on the device so i decided to go back to stock lollipop 5.0 in hope that this would fix the issue, the download went well the phone then rebooted and started the installation. About half way through i noticed that the screen was black so i naturally pressed the power button but no response, i have tried everything from here that i can think off. I have tried hard reseting using the ppower button and volume button to access bootloader i have also attempted adb & fastboot commands but my device is not registering on the pc the only thin that came up when plugging it in to my pc was an instakllation of some foreign driver known as 'Forge HS-USB QDLoader 9008 (COM4)' the only response i now get from the device is a green led that comes on for a few seconds and disappears shortly after, and that's only when i hold the power button down for 10 secs to perform a hard reset. The device had almost 100% battery when i performed the upgrade. Have i bricked my device, is there any hope in getting it back up again? Is there a toolkit or something i can use to revie it. Your help would be really appreciated it, ive only had the device for approx 2 weeks and it was purchased on ebay from a private seller brand new sealed in the box, so no warranty :(