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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Commentaire officiel
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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