New firmware updates released for Nikon Df, D5200 and D3200 cameras - Nikon Rumors
Nikon D3300 Firmware Update C version 1.01 Released
How to Update Firmware on Nikon DSLR
Nikon: New Firmware Update Version 1.01 for Both Cameras D3300 (2016-01-26) and D5300 (2016-01-27): Improvements & Support for Lenses AF-P DX NIKKOR 18–55mm f/3.5–5.6G VR and AF-P DX NIKKOR 18–55mm f/3.5–5.6G –
Firmware update C version 1.01 for the Nikon D3300 released - Nikon Rumors