I think it's not dead,but i dont know what is the problem!
I use this simple beta version with this rom and flash is ok!But flash time is very long around 1:20h !!!!
tray to change usb port and cable!
dowload this rom,first try recovery rom,if not work try full flash(QDLoader 9008)EDL mode.
When you dowload fasboot rom i think you must add .tgz extencion to the downloaded rom and after that you can extracted twice if my remember is good.
you can flash only LAND type of rom for redmi 3s...
Hi!I repair my redmi 3s with this mode.
You Must open phone back side like on (picture) to put shortcut to this two point.
After that reconect USB cable and look on your PC device menager driver is change 900E to 9008 then phone is in EDL mode,after reconect USB remoove short cut!Phone is...