CSRBC.SYS is a huge problem
I have two SMH10's, they are a few years old but still work well..... sort of. One of the units continually tries and fails to connect to the intercom even though I'm the only one using it. Sena tells me to update the firmware. As one can expect, the Sena Device Manager comes up with an error that it can't find the device. After contacting Sena Support, together we went through a series of "do this" and "Do that's". One of them was to turn of "memory integrity" feature under Core Isolation in windows security, then reconnect the SMH10 to the computer and open up the Sena Device Manager again. It still failed with a new error code.
The problem now is that I cannot turn back ON the Memory Integrity on my PC because the CSRBC.sys file, a Cambridge Silicon Radio driver for the SMH10 is still present.
I've uninstalled anything that remotely says SENA from my system as well, but this file is still hanging on.
Any ideas to resolve this?
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Commento ufficiale
What's causing this issue are the drivers from the hardware provider. I have brought this up with our development team to see if we can get a fix or if it's something that can only be addressed with updated hardware from the providers.
In the meantime, you are correct. You must delete the Cambridge Silicon Radio/csrbc.sys and uninstall the Sena software to re-enable core isolation.
Core Isolation is also not enabled on everyone's computer; it solely depends on their motherboard. This doesn't affect us directly, but there are other software programs out there that can prevent core isolation from being turned on.
Although this is not security advice, this is just me speaking as an enthusiast. I find Windows 11 core isolation very intrusive with the RAM as it slows it down due to the extra processes it has to run. Windows Defender does the majority of the security in Windows 11 OS systems. Think of core isolation as an updated version of driver signature request, as it is used to validate the driver in the chipset of devices.
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Resolved. I had to dig deep within the installed system files and found it and uninstalled it.
NOTE: Some of SENA's software appears to not be Windows 11 compatible. I could be wrong but this is not the first time I've heard of this issue.
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Hey - having the same issue... when you say you had to "dig deep", where was that exactly? I went through device manager but couldn't find it.
Thanks
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I had the same problem and only solution I could find was to delete the driver as outlined in this YouTube video : https://www.youtube.com/watch?v=aVkLp_-WSo4 .Microsoft doesn't recommend deleteing drivers this way as it can impact functionality of the PC and device. In this case as it appeared it was just the Sena I took the chance and deleted. All seems ok, and I now have core isolation enabled.
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S/O Has same issue with the CRSBC.SYS file. If you cannot find it in the place the youtube video suggests, try searching in [Windows >System 32 > Drivers] instead of the Driverstore. Or, alternatively just search the file name in the "This PC" section and it should pop up.
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I had the same problem and only solution I could find was to delete the driver as outlined disposable-vape doesn't recommend deleteing drivers this way as it can impact functionality of the PC and device. In this case as it appeared it was just the Sena I took the chance and deleted. All seems ok, and I now have core isolation enabled.
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During the installation of the Sena Device Manager 4.4.14 64-bit on Windows 11 26120.3576 with Windows Feature Experience Pack 1000.26100.66.0 , there's a prompt to connect your Sena Device via USB. In my case, I have a Sena 30K and it is not recognized. Yours probably will not be recognized either.
So, unintuitively, you click Cancel, then the driver install starts (which seems out of order, seems like the driver should install first, then ask you to plug in the Sena Device) and you learn that this driver installed successfully:
Cambrige Silicone Radio Ltd. (CSRBC) USB (11/27/20) 2.5.5.9
Powering off my Sena 3K, then connecting it to the PC with a USB cable and turning on the Sena 30K still doesn't work.If someone can figure out which of these drivers to install, maybe we can get this working:
Driver Updates - | Cambridge Audio USp.s. I watched the video above and can confirm these steps did not work for me:
- Click Start, search for PowerShell, click Windows PowerShell
- At the prompt in PowerShell, enter: pnputil /enum-drivers
- There's a big list, but I found the offending Cambrige driver in there as oem135.inf
- Now hold Shift and right-click on Start, then click Installed Apps
- Search for Cambridge, Click the 3 dots, click Uninstall, then a "Uninstall Driver Package" pop-up will state "All devices using this driver will be removed. Do you wish to Continue?" Click Yes
- Now search for Sena and Uninstall Sena Device Manager
- Re-install Sena Device Manager
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Anyone found a way to update the 20S and 30K?
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I've been working on getting the 32 or 64 bit to take with drivers and finally got the 64 to go as expected on the fourth or fifth try.
In response to Darin, for my 10s & 20S/Evo, I haven't been able to achieve connectivity/pairing of any kind and still no recognition in the device manager to update.
I feel like I have to be some sort of computer wizard since going Sena back in 2018... can't get a thing to work reliably, no updates, won't recognize when connected to multiple devices...
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I am facing exactly the same issues with a HJC Smart 20B which is eqivalent to the Sena 20S EVO.
I found out that the headset has a wrong device ID. The Cambrige Silicone Radio Ltd. (CSRBC) USB (11/27/20) 2.5.5.9 driver expects for the HJC 20B a device ID of "USB\VID_092B&PID_4621" or "USB\VID_092B&PID_4611"
But when I plug in my headset show up in the Windows device manager as "USB\VID_092B&PID_4620".
This does not match the Cambrige Silicone Radio Ltd. (CSRBC) USB (11/27/20) 2.5.5.9 driver and there the driver does not get installed for the device.
I "hacked" the driver by modifying the .inf file and added the missing device ID. By this I was able to force the installation of the driver and the headset showed up as device "HJC 20B" in the Windows device manager.
But no success. The Sena device manager still does not recognize the headset.
I regret deeply buying a Sena heaset. It's so expensive and still just such a crappy piece of junk. I will never buy Sena again.
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The issue may be related to a driver or USB recognition problem, not just the firmware. Try using a different USB cable or port, install the latest USB drivers, and run the Sena Device Manager as an administrator. Also make sure no other Bluetooth management software is interfering with the connection. Sometimes online forums mix unrelated questions, like Does 7Up have gluten, which shows how scattered information can be.
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Why does a login failed error appear every time you try to sign in to Floatplane using your LTT Forums login?
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