SIYI FT24 - 9.2 OTA Firmware Upgrading; 9.2.1 Receiver and transmitter bound.

FT24 User Manual V1.1
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8.1 Bluetooth
General Settings is to setup different signal modes for FR receiver, according to
its different output mode (S.BUS, PPM, and PWM).
About Bluetooth
Standard
Reset FT24 transmitter’s Bluetooth module name to the default 10-digit serial number.
Rename
Custom name for your Bluetooth module.