Hi,
I own Pioneer AVIC-F950BT ,
Its currently running on original factory firmware version 1.0.
I have managed to find latest firmware from Pioneer website , which is version 1.062.
This unit has micro SD Slot and USB port.
According to the guide, firmware upgrade can be done by using micro sd memory card.
I formated the Micro SD using Windows - FAT (Default) Settings
Allocation Unit size was left as Default Allocation size.
Micro SD card was formatted OK.
I downloaded the firmware file https://products.pioneer-car.eu/sites/pioneer_products/files/a