I was flashing my phone with a new firmware on XS++ v3.1 and it seemed to have died halfway through it, now i cant connect it or turn it on or even charge it i get no response

is it well and truly bricked or is there a way of recovering it?

What phone model? Did you remember to take GDFS backup? It could be that your EROM is dead so connect while holding 2 and 5 instead of C

Reflash, as you "disconnected" it when it's flashing.

didnt make a gdfs backup, but it wont even flash as the battery is dead, and i cant plug it in to charge it as it doesnt even light up or anything

if i got a charged battery and tried to redo the erom and flash it would it work?

also my phone is a W850i came with RED/CID49 and i updated it to RED/CID52 as XS++ said i should
would i have to reflash the erom back to CID49?

cheers

found a charged battery, reflashed

problem fixed