My Blu Vivo XL phone's battery died and won't turn on. It has been plugged in but still nothing. I connected it to my laptop as a USB but all I can hear is the sound of a device connecting and disconnecting.
I attempted to hard factory reset it however, it made a small beeping/vibration sound and a white/greenish line flashed across the screen in the space of a second.
How can I fix this?