How to do the SPI mod on the RX5808
There are reports some RX5808 modules are being supplied with the SPI mod already done. However in the case you may need to perform the modification, please refer to the information below.
Carefully remove the metal casing from the RX5808, using a soldering iron to heat the soldered sections around the case.
Locate the SMD resistor that is required to be removed to enable SPI.
Carefully remove the SMD resistor from the circuit.