Commonly asked questions

Uninverted and Inverted Sbus s.port R161 R81
The R161 has an Uninverted Sbus output that can be found on the solder point shown in the location below. This is only available on the R161. (A speci...
Wed, 25 Aug, 2021 at 7:37 PM
SI and SJ adding extra Pots or 2 pos Switches
SI and SJ are assignable slots in OpenTX for an extra two 2pos switches and an extra 2 analog pots.
Wed, 2 Dec, 2020 at 12:54 PM
R168 & R161 Receiver firmware update procedures
R168 Receiver firmware update procedures 1. Using your browser, please visit: www.radiomaster.com/downloads   2. Scroll down to the Receiver manuals sect...
Thu, 11 Mar, 2021 at 7:22 PM
Factory Firmware & SD Contents
TX16s Factory Firmware Factory SD Contents User Manual TX12 Factory Firmware Factory SD Contents User Manual TX8 Resource Download User Manual
Mon, 4 Jan, 2021 at 4:44 PM
Choosing the right Protocol when binding R161 and R168 FCC or LBT receivers
Please note the FCC and EU LBT versions of the R161 and R168 receivers require a different Mode to be selected in the Internal RF section of the MODEL SET...
Tue, 30 Mar, 2021 at 4:02 PM
T8 Pro & TX12 "No telemetry" problem when flashing new MPM Firmware
If you are experiencing an error when flashing MPM firmware with your T8 Pro or TX12 the radio you have may have a C8 MCU in the RF component of the radio. ...
Wed, 15 Sep, 2021 at 6:27 PM
Unable to write Firmware in DFU Mode OpenTX / EdgeTX
If you are experiencing the below problems flashing firmware with OpenTX companion or EdgeTX Flasher please follow the guide below. If you see the followi...
Tue, 31 Aug, 2021 at 11:59 AM