Helloi have MacBook Air m5 and Steinberg AXR4U and Cubase Pro 15 i was istalled newest AXR4U tools for MacOs 26 Tahoe but AXR4U not working - AXR DspMix will not loaded - i just set AXR4U in Device Center - but Device Center cant see the AXRU firmware - i can see AXR4U in settings - Sound - there is AXR4U visible but not function - if i try use Cubase 15 pro with AXR4U - cursor still spinnin to Forever… i must close Cubase Pro…please help
Hi,
Can you use AXR4U in other application (like browser)?
Have you tried to restart the system?
Do you use Cubase in the native mode (not the Rosetta mode by accident)?
Hello 1st Question - no AXR4U not workin in browser - like youtube etc or in inner sound and effects - there is no sound.. yes i try restart and try use factory defaults settings in my macbook air m5.. I was download new tools and driver yesterday but its not workin.. in settings of mac i can see AXR4U for input and output but volume fader is displej.. when I open device Center and type AXR4U - its say to me - no firmware detected if I want update firmware - its say me no AXR4U connected
Yes I use cubase pro 15 in native mode not rossetta
Hi,
Most likely root cause
Based on your description, my probability order is:
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Wrong cable / direct USB link issue—especially if the AXR4U is connected through a dock or via a USB-C cable that is not a full data-rated cable.
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The Yamaha Corporation system extension was not allowed, or the Apple-silicon security policy was not set before the first driver installation.
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Wrong tools package / an incomplete or mixed older driver installation—for AXR4U, use AXR4U TOOLS and the Yamaha Steinberg USB driver.
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A less likely AXR hardware/USB-port issue, if the unit is not visible in System Report → USB even with another direct cable and another computer.
Reply with a screenshot or exact text from System Report → USB with AXR4U connected, and tell me whether you connect it directly by USB-C or through a dock/adaptor. That will let us pinpoint whether you should focus on the driver authorization or the physical USB link.
For now, quit Cubase completely and do not start dspMixFx or Device Center repeatedly. The goal is to make the AXR4U visible as real hardware first.
After the repair, verify this order:
- AXR4U powers on normally and completes its startup.
- dspMixFx AXR opens without waiting/spinning.
- Device Center detects the AXR4U and shows its firmware.
- macOS audio works in Music/YouTube.
Check the physical connection
The AXR4U needs a real Thunderbolt connection—not merely a USB-C cable that fits physically.
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Use a certified Thunderbolt 3 or Thunderbolt 4 cable, ideally the known-working short cable supplied with the AXR4U or an Apple/CalDigit/OWC-certified cable.
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Connect AXR4U directly to the MacBook Air, without a dock, USB hub, display, or adapter in between for testing.
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Test the other USB-C/Thunderbolt port on the MacBook Air.
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Shut down the Mac fully, turn AXR4U off, disconnect its TB cable and power cable for about 30 seconds, then reconnect it directly and turn it on before booting the Mac.
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If you own another known-good TB3/TB4 cable, test it. USB-C charging cables and many USB-C data cables will not establish the required Thunderbolt link.
Open Apple menu → System Settings → General → About → System Report and look under Thunderbolt / USB4. You should see the Steinberg/Yamaha AXR device there. If it is absent, this is below the driver/application level: cable, port, interface power, TB negotiation, or macOS Thunderbolt approval.
Repair the driver installation
On an Apple-silicon Mac, Yamaha/Steinberg’s official procedure requires changing the startup security policy before installing the Yamaha Steinberg Thunderbolt Driver / AXR TOOLS: Reduced Security plus permission for user-managed extensions from identified developers. After installation, you must explicitly allow system software from Yamaha Corporation, then restart.
Do this carefully:
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Disconnect the AXR4U from the Mac.
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Shut down your MacBook Air completely.
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Hold the power button until Loading startup options appears.
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Choose Options → Continue to enter Recovery.
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From the menu bar choose Utilities → Startup Security Utility.
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Select your macOS startup disk, choose Security Policy.
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Select Reduced Security.
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Enable: Allow user management of kernel extensions from identified developers.
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Restart macOS.
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Run the AXR4U TOOLS installer again—the correct current package is TOOLS for AXR4U V3.1.0 for Mac macOS 26, 15–14 (Intel/Apple silicon), released July 9, 2026. It includes AXR applications, dspMixFx AXR, Device Center, the driver, and FX components.
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At the end of installation, macOS should offer to open Security/Privacy settings. In System Settings → Privacy & Security, allow the system software from Yamaha Corporation.
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Restart the Mac when asked—do not skip this restart.
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Power-cycle AXR4U and reconnect it directly with the Thunderbolt cable.
A relevant warning: the official AXR package page says that on Apple silicon the Mac security policy has to be changed for the initial installation.
Make sure it is the correct driver
There is an important naming trap: AXR4U is the USB version, whereas AXR4T is the Thunderbolt model. For your AXR4U, the proper driver component is normally Yamaha Steinberg USB Driver, not the Yamaha Steinberg Thunderbolt Driver.
The product page for the Apple-silicon AXR4U TOOLS package explicitly lists Yamaha Steinberg USB Driver, Steinberg AXR Applications, dspMixFx AXR, and Device Center.
So, please double-check that you installed TOOLS for AXR4U, not the AXR4T/TB download. Your AXR4U should ordinarily be connected directly by USB—not using a Thunderbolt-only troubleshooting path.
If it still shows “no firmware detected”
Please perform these two checks and tell me the exact result:
A. System Report
Open Apple menu → About This Mac → More Info → System Report, then check both:
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USB: Do you see Steinberg AXR4U, Yamaha, or a device with a similar name?
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Thunderbolt / USB4: Do you see anything new when AXR4U is connected?
For the AXR4U, the key place should be USB, since AXR4U uses the Yamaha Steinberg USB Driver. If it is not listed in System Report → USB, macOS is not detecting it properly at the hardware bus level. Try another known-good USB-C data cable and direct connection. Avoid hubs/docks entirely until it works.
B. Driver authorization
In System Settings → Privacy & Security, scroll to the bottom. Is there a message such as:
System software from developer “Yamaha Corporation” was blocked from loading.
If yes, click Allow, restart, then reconnect AXR4U.
Also confirm in System Settings → General → Login Items & Extensions → Driver Extensions whether a Yamaha/Steinberg driver is shown and enabled.
Someone discovered Claude…? 