Support for Bluetooth has been added for the SELPHY CP510 printer, via this Firmware download.
This firmware update applies to SELPHY CP510's that have a serial number of which the fifth digit is one or zero. If it is 2 or more, the product is already loaded with the latest firmware, and therefore, updating its firmware is not necessary.
Firmware update necessary: 0701100002
Firmware update NOT necessary: 1011200001