I found this, but am going to try it! Have to admit will never buy a BLU phone again after this!!!
How do I transfer files from my Blu phone to my computer?
'''Move files by USB'''
# Download and install Android File Transfer on your computer.
# Open Android File Transfer. ...
# Unlock your Android device.
# With a USB cable, connect your device to your computer.
# On your device, tap the "Charging this device via USB" notification.
# Under "Use USB for," select File Transfer.