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Jun 22, 2018, 09:41 AM
Registered User
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Realacc RX5808 PRO PLUS OSD Achilles FW

Now i have the Realacc RX5808 PRO PLUS OSD 5.8G 48CH FPV Receiver with the Achilles Open Source firmware for my Fatshark Dominator HD3 Goggles. A very good diverity module with best firmware, that I see. The Achilles firmware is ease to use and now with OSD on the goggles.
The RX5808 have the Achilles firmware version 1.8. Thedisplay is bigger as the display from the Pro58 and with integrated OSD on the goggles display's.
The new RX5808 PRO PLUS OSD have the same faster STM32 F1 CPU that is working in Eachine Pro58. The old RX5808 PRO PLUS Module have still the slow rate MWC CPU.
My version is without the cover, but I have a 3D printer.

And you can ease flashing or update the module:

1. download achilles Plus for Eachine Pro58, current v1.8 from
2. press the BOOT button and connect the USB cable
3. wait about 3 seconds
4. open Betaflight
5. go to firmware flasher TAB
6. Load firmware (local) button and select the achilles firmware
7. enable 'no boot sequence'
6. Flash firmware and you are ready with the update

Get the RX5808 PRO PLUS OSD with cover here:

Link to Banggood

Here my Flashing video (EN subtitle)
RealAcc RX5808 Pro Plus OSD flashing Achilles firmware mit Betaflight (1 min 51 sec)

Here my review (EN subtitle)
Realacc RX5808 Pro Plus OSD FPV diversity Achilles Firmware Modul (2 min 45 sec)

My Equipment from Banggood:
Fatshark Dominator HD3 -
Eachine Pro58+Achilles -
FrSky X9D Plus SE -
iRangeX IRX4 Plus Multiprotocol Module -
FrSky XM  -
FrSky R-XSR -
FrSky XSR -
Flysky FS-i6 -
Turnigy Evolution -
Fli14 Plus -
RunCam Split Mini -
RunCam Micro Swift 3 -
RunCam Micro Sparrow 2 Pro -
RunCam Micro Eagle -

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Last edited by kopterheld; Jul 06, 2018 at 08:35 AM.
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Jun 26, 2018, 03:39 PM
Registered User
Wait a second, this is different from the original rx5808 plus running Achilles 2.0? These come configured with a different Achilles firmware that allows OSD? Is there anyway to get this on the old one and is this hardware any different?
Jun 28, 2018, 04:56 PM
my RC. Your info
DutchRC's Avatar
Getting this (OSD) option to work on the 'old' one requires a hardware change yes (as in soldering etc)
Jul 02, 2018, 11:09 AM
Registered User
Thread OP
Originally Posted by Titan33
Wait a second, this is different from the original rx5808 plus running Achilles 2.0? These come configured with a different Achilles firmware that allows OSD? Is there anyway to get this on the old one and is this hardware any different?
The new R5808 Pro Plus OSD module have the same hardware as the Eachine Pro58 and have the OSD fix with USB port included.
For a update to new Achilles firmware you go to Betaflight Firmware flasher TAB and update manual (local file) the R5808 Module.

The new Module have a STM32 F1 controller with more power as the old R5808 without OSD.

The old module work's only with the Achilles 2.0 free firmware
The new module R5808 Pro Plus OSD work's only with the Achilles Plus firmware (current v 1.8)
Jul 27, 2018, 05:30 PM
Registered User
I purchased this module (with Achilles already installed) from RDQ a few days ago. Their price is somewhat higher than BG's price, but I received it in just 2 days and it was worth it to me not to wait for delivery from China.

I really like it that the Achilles Pro firmware was already installed. But, what happens from a licensing standpoint if I install another, non-Achilles firmware and then later go back to Achilles: Is the original Achilles Plus license lost? In other words, will I have to purchase the Achilles Plus license in order to re-install the firmware?

I noticed on the Achilles web site a note that says, "When you upload the firmware your module will be locked." Does this mean that it is not possible to install a non-Achilles firmware to these modules?
Jul 27, 2018, 06:04 PM
my RC. Your info
DutchRC's Avatar
I don't really have answers to this, but if it IS somehow locked, trying to flash something ellse onto it, should harm things..

An additional question could be if Realacc actually payed for the licence themselves (or just payed for one and.......)
Jul 28, 2018, 07:10 PM
Registered User
I've submitted my question to the Achilles web site. I'll post what and when they reply.
Aug 01, 2018, 03:29 PM
Registered User
Achilles replied back that modules sold with Achilles Plus pre-installed are "licensed forever. If you uninstall it and then re install it, there will be no problem."

So it sounds like the modules have been legitimately licensed prior to being sold and that the licenses are permanently bound to the modules.
Jun 24, 2019, 01:54 AM
Registered User
Does the Realacc RX5808-PRO-PLUS-OSD has audio? Old RC5808 had missing Filter/no audio... Cant find any infos on that....

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