I have tried a hard reset holding power + volume up + volume down until it vibrates 3 times in succession but nothing.
Tried plugging it into PC but no led light appears.
I really dont know what to do.
Thank you to anyone that can help.
Edit: If I hold the volume down button while phone is plugged into PC the LED flashes green and a noise is made by PC as if a device has been plugged into PC but no pop-ups or notifications appear. After pulling out usb from pc whilst LED was on windows installed SEMC flash device.