Er9x firmware information
You will by now have probably noticed that there are quite a few different versions of the firmware. Each of these variations to the core firmware has been created to meet specific requirements by the projects developers.
Each firmware is named with a variety of suffixes to help you identify what the firmware does.
The current list of suffixes is as follows:
#NOHT - do not show the heli & template menu's #FRSKY - used if you have modified your radio to receive frsky telemetry #JETI - used if you have modified your radio to receive jeti telemetry #NMEA - used if you have modified your radio to receive NMEA gps data #ARDUPILOT - used if you have modified your radio to receive ardupilot data
In the following example:
Would mean. ER9X, with FRSKY support, No Heli & Template menu.
Your choice of firmware will very much depend on the mod's you have done to your radio. Typically, most people start on just ER9X, then over time would move on to other options as they make changes to there gear!
For your convenience, this is a list of the latest version of firmware:
(right-click on the link and "Save As")
|Item||No Heli or Templates||More Information|
|ER9x||ER9x-NOHT||Standard version for your 9x radio|
|ER9x-FRSKY||ER9x-FRSKY-NOHT||If your board has been modified to use the FRSky telemetry|
|ER9x-JETI||ER9x-JETI-NOHT||For the JETI telemetry system|
|ER9x-NMEA||ER9x-NMEA-NOHT||For NMEA GPS systems|
A detailed list of firmware versions and features/fixes can be found at:
or previous builds available on