# LimeSDR mini rf loopback test failed

**URL:** <https://discourse.myriadrf.org/t/limesdr-mini-rf-loopback-test-failed/5695>\
**Category:** LimeSDR\
**Created:** [30 January 2020 10:41 UTC](https://discourse.myriadrf.org/t/limesdr-mini-rf-loopback-test-failed/5695 "2020-01-30T10:41:17Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![luc.b](https://avatars.discourse-cdn.com/v4/letter/l/51bf81/32.png) [@luc.b](https://discourse.myriadrf.org/u/luc.b)\
**Post date:** [30 January 2020 10:41 UTC](https://discourse.myriadrf.org/t/limesdr-mini-rf-loopback-test-failed/5695/1 "2020-01-30T10:41:17Z")

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Hello there

Yesterday mij Lime sdr Mini arrived from antratek ( netherlands ) today i tried to test it but it failed the rf loopback test. Nothing connected to the ports, should i do something different ?

[RF Loopback Test]

-\>Configure LMS  
-\>Run Tests (TX\_2 -\> LNA\_W):  
CH0 (SXR=1000.0MHz, SXT=1005.0MHz): Result:(-56.0 dBFS, -1.78 MHz) - FAILED  
-\>Run Tests (TX\_1 -\> LNA\_H):  
CH0 (SXR=2100.0MHz, SXT=2105.0MHz): Result:(-56.8 dBFS, -3.00 MHz) - FAILED  
-\>RF Loopback Test FAILED  
=\> Board tests FAILED \<=

Tnx

Luc

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**Author:** ![BlackF](https://yyz2.discourse-cdn.com/flex034/user_avatar/discourse.myriadrf.org/blackf/32/3251_2.png) [@BlackF](https://discourse.myriadrf.org/u/BlackF)\
**Post date:** [4 February 2020 14:00 UTC](https://discourse.myriadrf.org/t/limesdr-mini-rf-loopback-test-failed/5695/2 "2020-02-04T14:00:55Z")

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Hey I have a similar issue, is the error consistent? Did you try cooling the board down with a fan?

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**Author:** ![luc.b](https://avatars.discourse-cdn.com/v4/letter/l/51bf81/32.png) [@luc.b](https://discourse.myriadrf.org/u/luc.b)\
**Post date:** [12 February 2020 07:32 UTC](https://discourse.myriadrf.org/t/limesdr-mini-rf-loopback-test-failed/5695/3 "2020-02-12T07:32:17Z")

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i had a fan running but no improvement…