# LimeSDR USB doesn't work with MacOS 10.15.6 Catalina

**URL:** <https://discourse.myriadrf.org/t/limesdr-usb-doesnt-work-with-macos-10-15-6-catalina/6443>\
**Category:** General Discussion\
**Created:** [22 August 2020 11:31 UTC](https://discourse.myriadrf.org/t/limesdr-usb-doesnt-work-with-macos-10-15-6-catalina/6443 "2020-08-22T11:31:58Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![afiskon](https://yyz2.discourse-cdn.com/flex034/user_avatar/discourse.myriadrf.org/afiskon/32/1131_2.png) [@afiskon](https://discourse.myriadrf.org/u/afiskon)\
**Post date:** [22 August 2020 11:31 UTC](https://discourse.myriadrf.org/t/limesdr-usb-doesnt-work-with-macos-10-15-6-catalina/6443/1 "2020-08-22T11:31:58Z")

</div>

I’m using MacBook 16" late 2019 with MacOS 10.15.6. LimeSuite was installed according to the [documentation](https://wiki.myriadrf.org/Lime_Suite):

```auto
brew tap pothosware/homebrew-pothos
brew update
brew install limesuite

```

It seems to be the latest version:

```auto
$ brew upgrade limesuite
Warning: pothosware/pothos/limesuite 20.01.0 already installed

```

Unfortunately `LimeUtil --find` returns an empty line. In dmesg I see:

```auto
311972.519448 LimeUtil@: AppleUSBHostUserClient::start: missing entitlement com.apple.ibridge.control
311972.519510 LimeUtil@: AppleUSBHostUserClient::start: missing entitlement com.apple.ibridge.control
TX(30:B4:9E:9B:D2:08) <Success NoACK Expired OtherErr> BE<4 0 0 0> BK<37 0 0 0> VI<0 0 0 0> VO<3 0 0 0> (5001ms)
L3 Control VO TX(30:B4:9E:9B:D2:08) Success=3 NoACK=0 Expired=0 OtherErr=0
TX(FF:FF:FF:FF:FF:FF) <Success NoACK Expired OtherErr> BE<0 0 0 0> (5002ms)
603188.134518 wlan0.A[76568] updateLQM@3339:No per core RSSI to report
603188.809659 wlan0.A[76569] updateLQM@3339:No per core RSSI to report
TX(30:B4:9E:9B:D2:08) <Success NoACK Expired OtherErr> BE<5 0 0 0> BK<0 0 0 0> VI<0 0 0 0> VO<0 0 0 0> (5001ms)
L3 Control VO TX(30:B4:9E:9B:D2:08) Success=0 NoACK=0 Expired=0 OtherErr=0
TX(FF:FF:FF:FF:FF:FF) <Success NoACK Expired OtherErr> BE<0 0 0 0> (5000ms)
603193.149111 wlan0.A[76570] updateLQM@3339:No per core RSSI to report
603193.818075 wlan0.A[76571] updateLQM@3339:No per core RSSI to report
311982.317133 AppleUSB20HubPort@14440000: AppleUSBHostPort::disconnect: persistent enumeration failures
TX(30:B4:9E:9B:D2:08) <Success NoACK Expired OtherErr> BE<0 0 0 0> BK<0 0 0 0> VI<0 0 0 0> VO<0 0 0 0> (5001ms)
L3 Control VO TX(30:B4:9E:9B:D2:08) Success=0 NoACK=0 Expired=0 OtherErr=0
TX(FF:FF:FF:FF:FF:FF) <Success NoACK Expired OtherErr> BE<0 0 0 0> (5001ms)
603198.826019 wlan0.A[76572] updateLQM@3339:No per core RSSI to report
TX(30:B4:9E:9B:D2:08) <Success NoACK Expired OtherErr> BE<2 0 0 0> BK<0 0 0 0> VI<0 0 0 0> VO<0 0 0 0> (5001ms)
L3 Control VO TX(30:B4:9E:9B:D2:08) Success=0 NoACK=0 Expired=0 OtherErr=0
TX(FF:FF:FF:FF:FF:FF) <Success NoACK Expired OtherErr> BE<0 0 0 0> (5001ms)

```

I thought maybe the problem could be with the USB hub, so I tried 3 different units. It didn’t help. Powering LimeSDR with external power supply didn’t help either. This LimeSDR unit works just fine with Arch Linux. (UPD: and Ubuntu as well)

At this point I don’t quite understand how to investigate the problem further. A little piece of advice would be much appreciated!

---

<div class="post-metadata">

**Author:** ![afiskon](https://yyz2.discourse-cdn.com/flex034/user_avatar/discourse.myriadrf.org/afiskon/32/1131_2.png) [@afiskon](https://discourse.myriadrf.org/u/afiskon)\
**Post date:** [9 September 2020 10:28 UTC](https://discourse.myriadrf.org/t/limesdr-usb-doesnt-work-with-macos-10-15-6-catalina/6443/2 "2020-09-09T10:28:00Z")

</div>

May be related to [LimeSDR-USB - USB not working](https://discourse.myriadrf.org/t/limesdr-usb-usb-not-working/6519/2)

---

<div class="post-metadata">

**Author:** ![mzs](https://yyz2.discourse-cdn.com/flex034/user_avatar/discourse.myriadrf.org/mzs/32/2678_2.png) [@mzs](https://discourse.myriadrf.org/u/mzs)\
**Post date:** [9 September 2020 12:11 UTC](https://discourse.myriadrf.org/t/limesdr-usb-doesnt-work-with-macos-10-15-6-catalina/6443/3 "2020-09-09T12:11:55Z")

</div>

I know nothing about OSX.  
But “missing entitlement” sounds like an access permissions issue.

( ref: [https://developer.apple.com/forums/thread/655118](https://developer.apple.com/forums/thread/655118) )

---

<div class="post-metadata">

**Author:** ![RightHalfPlane](https://avatars.discourse-cdn.com/v4/letter/r/46a35a/32.png) [@RightHalfPlane](https://discourse.myriadrf.org/u/RightHalfPlane)\
**Post date:** [10 September 2020 14:01 UTC](https://discourse.myriadrf.org/t/limesdr-usb-doesnt-work-with-macos-10-15-6-catalina/6443/4 "2020-09-10T14:01:29Z")

</div>

Very strange, SdrGlut works with the LimeSDR mini on MacOS 10.15.6 and it uses the LimeSuite through SoapySDR. It uses libLimeSuite.19.04-1, perhaps there is a problem with limesuite 20.01.0.