NC 700 Firmware Wont Upgrade
I just recently bought 2 pairs of NC 700 headphones, one refurbished (due to being available in black) and one brand new soapstone via the recent sale.
The soapstone model was able to recognize that a firmware upgrade was available and update successfully, unlocking the equalizer function. However, the black refurbished model claims the firmware is up to date, which is clearly not the case as the equalizer function is not available.
Any idea how to update the headphones that erroneously think they have the latest firmware, so I can unlock the equalizer?