Error on setup RTL-SDR (Error code -12)

Question

David Castrillo Martínez 2020-7-25

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/570523-error-on-setup-rtl-sdr-error-code-12

编辑： John 2025-8-13，5:49

I found this error when i try to setup my RTL-SDR on my PC. I use this same RTL-SDR on a laptop and works properly, indeed, i can use SDRsharp on this same PC and works.

When i try to setup on Matlab Hardware Setup, if fails on search ad connect and that error code -12 is displayed in the command window. I dont know what to do.

Thank you

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shakthivel s saravanan 2022-2-2

Friend,did you find a solution??.. Share it please. Thanks

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Answer 1

Edwin Wilson 2020-9-25

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https://ww2.mathworks.cn/matlabcentral/answers/570523-error-on-setup-rtl-sdr-error-code-12#answer_500389

I found the fix after hours of scouring the Internet!

Install zadig -> Run it as administrator

In Options Check List All Devices >> Uncheck Ignore Hubs or Composite Devices

In drop down menu select the device saying RTL2838UHIDIR >> Click Replace Driver

Voila!

For reference : https://www.rtl-sdr.com/forum/viewtopic.php?f=7&t=1797

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Kevin Epson 2022-7-1

This solution works! Thanks for posting

RUI 2024-5-13

very useful solution! really works. Great appreciated

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Answer 2

John 2025-8-13，5:46

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/570523-error-on-setup-rtl-sdr-error-code-12#answer_1569280

编辑：John 2025-8-13，5:49

If you're using an RTL-SDR v4, what worked for me is updating the dongle driver inside the files for Mathworks's Communications Toolbox Support Package for RTL-SDR Radio after having already gone through the RTL-SDR v4 Quick Start Guide. In particular, I'm on Windows 11 x64, and I just replaced rtlsdr.dll at the following locations with the x64 version of the new driver:

C:\ProgramData\MATLAB\SupportPackages\R2025a\toolbox\shared\sdr\sdrr\bin\win64\rtlsdr.dll
C:\ProgramData\MATLAB\SupportPackages\R2025a\3P.instrset\rtlsdrradio.instrset\rtl-sdr\lib\win64\rtlsdr.dll
C:\ProgramData\MATLAB\SupportPackages\R2025a\3P.instrset\rtlsdrprecompiledlib.instrset\lib\rtlsdr.dll

I got my copy of the new driver from the SDR# x64 installation; note that I had to run "install-rtlsdr.bat" for the installer to download the driver first. You can also download the new driver for Windows/Linux/Mac at https://github.com/rtlsdrblog/rtl-sdr-blog.