Firmware Update Failure/Crash nx mini

My NX Mini failed during a firmware update, now it will not turn on and it loops with red/green led flash, lens startup and shutdown. i had to remove the battery during the firmware update i was installing as it 'hung'. now i appear to have an expensive (mini) brick. I'm sure there's a solution but cannot find one or even someone with the same or a similar issue. Please help me :-/