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Keris II Ace Wireless Firmware update fails with "Update failed. Please try again. (50)"

silvery09
Level 8

Hello  everyone,

when I opened Armory Crate Gear ROG KERIS II ACE 1.0.2.0 today I got the message that a Firmware update is available.

This is the Versions that were shown when I got the Firmware Update notice:
Screenshot 2026-01-27 120452.png

I connected the Dongle with the Booster via the adapter and the cable to my PC. The 
Mouse was connected via a cable too to the PC. I set the mouse to Wired Mode (middle position of the switch).

When I tried to  update it said "Update failed. Please try again. (50)".

I then started the Dongle Update manually from the "C:\Program Files (x86)\ASUS\ArmouryDevice\Firmware\6862" Folder via the file "FW_Update_Tool_Unify_Dongle.exe". This went through but downgraded the Firmware to Version 6.00.23. And now it looks like that in Armory Crate Gear:

Screenshot 2026-01-27 130919.png

 

I still get the notice that a Firmware Upgrade is available but it still always fails with "Update failed. Please try again. (50)".

I tried:

  • Starting Armory Crate Gear in Admin Mode.
  • Uninstalled Armory Crate Gear and all other ASUS Software. Rebooted. Reinstalled.
  • Powered off PC, removed power cable, switched off PSU, held Power button for 30 seconds. Unplugged Mouse and Dongle. Rebooted. Reconnected Mouse and Dongle.

I am always getting the same "Update failed. Please try again. (50)" error, sometimes the Progress Bar is starting for a second other times it immediately fails.

I would really like to  be able to upgrade to the newest Firmware Version(s).

Thank you for reading and maybe you can help me.

1,637 Views
1 ACCEPTED SOLUTION

Accepted Solutions

Silent_Scone
Super Moderator

You may need to delete the existing FW update from here:
C:\ProgramData\ASUS\ARMOURY CRATE Diagnosis\MAFWUpdate

 

Silent_Scone_2-1770047364137.png

 

 

Silent_Scone_0-1770047197681.png

 

9800X3D / 6400 CAS 28 / ROG X870 Crosshair / ROG Astral 5090 OC

View solution in original post

18 REPLIES 18

silvery09
Level 8

In the "C:\Program Files (x86)\ASUS\ArmouryDevice\Firmware" folder I have these folders:

  • 6862
  • 6934
  • 6938
  • Tools

IonAphis
Level 7

Hey unfortunately I don't have an answer for you, but the same is happening to my Scope 96 II. Same error (50)

silvery09
Level 8

Hey IonAphis, 

good you answered, it gets visibility and maybe helps to get it solved.

rynnski009
Level 7

Same issue with both a keris II ace and a scope II 96

Silent_Scone
Super Moderator

I've replicated this issue on the Keris II and have since reported it

9800X3D / 6400 CAS 28 / ROG X870 Crosshair / ROG Astral 5090 OC

silvery09
Level 8

Hey Silent_Scone, 

this is fantastic news

schreuder_n
Level 7

I have the same issue with ROG Harpe Ace Extreme.

Device version: 1.00.15
Dongle version: 6.00.25
Booster version: 2.00.13

jheyz017
Level 7

Got the same issue with my Impact 3 wireless, this mouse doesn't have a cable (battery Operated) I got the same message to update firmware and error (50).

silvery09
Level 8

Great, thanks for every reply, it helps with visibility and that people do not feel alone. 👍