In our review of the Nikon D5600 we reported connectivity issues with the Nikon Snapbridge app that allows for automatic image transfer from the camera to your smartphone. It appears these issues might now have been resolved.
Nikon has released firmware updates for the Nikon D3400 and D5600 DSLRs to improve the pairing and connectivity between the Android version of SnapBridge and the cameras. Firmware version 1. 12 for the Nikon D3400 and 1. 02 for the D5600 are now both available to download and install via Mac OS or Windows PC from the Nikon website. Connectivity issues with the iOS version of the app had already been solved via a previous firmware update.. dpreview.com