# Quick Test error

**URL:** <https://discourse.myriadrf.org/t/quick-test-error/7703>\
**Category:** General Discussion\
**Created:** [21 August 2022 19:56 UTC](https://discourse.myriadrf.org/t/quick-test-error/7703 "2022-08-21T19:56:53Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![ea3um](https://avatars.discourse-cdn.com/v4/letter/e/90db22/32.png) [@ea3um](https://discourse.myriadrf.org/u/ea3um)\
**Post date:** [21 August 2022 19:56 UTC](https://discourse.myriadrf.org/t/quick-test-error/7703/1 "2022-08-21T19:56:53Z")

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I have a LimeSDR USB board, bought directly from Crowd Supply about 5 years ago (first series), that after 1 year of inactivity, I have started it and running the Quick Test, it gives me an error in TX1 loopback with LNA\_W.  
All other channels correct.  
I would appreciate if someone has had this incident, your information on how to proceed.  
By deduction, I think the problem must be hardware, unless there is some difference or incompatibility of the new software with this version of the board.  
I would also like to know if it is possible to work with the other channels leaving this one inoperative, without affecting the rest of the board.  
Thank you

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**Author:** ![andrewback](https://avatars.discourse-cdn.com/v4/letter/a/22d042/32.png) [@andrewback](https://discourse.myriadrf.org/u/andrewback)\
**Post date:** [26 August 2022 07:42 UTC](https://discourse.myriadrf.org/t/quick-test-error/7703/2 "2022-08-26T07:42:57Z")

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> [@ea3um](#):
>
> I have started it and running the Quick Test, it gives me an error in TX1 loopback with LNA\_W

Could you post the LimeQuickTest results, please.

> [@ea3um](#):
>
> I would also like to know if it is possible to work with the other channels leaving this one inoperative, without affecting the rest of the board.

Yes.

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<div class="post-metadata">

**Author:** ![ea3um](https://avatars.discourse-cdn.com/v4/letter/e/90db22/32.png) [@ea3um](https://discourse.myriadrf.org/u/ea3um)\
**Post date:** [26 August 2022 11:21 UTC](https://discourse.myriadrf.org/t/quick-test-error/7703/3 "2022-08-26T11:21:25Z")

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Thanks for your answer.  
I attach the test report.  
By simple deduction it seems that the fault may be in the LNA\_W reception channel, because there is a lot of signal attenuation in both TX channels.  
Thanks for your help

 ![Test_Board](https://canada1.discourse-cdn.com/flex034/uploads/myriadrf/original/2X/c/c94aa1204b8c607aad5fb39a55d8995fc24eb02c.jpeg)

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**Author:** ![andrewback](https://avatars.discourse-cdn.com/v4/letter/a/22d042/32.png) [@andrewback](https://discourse.myriadrf.org/u/andrewback)\
**Post date:** [26 August 2022 20:11 UTC](https://discourse.myriadrf.org/t/quick-test-error/7703/4 "2022-08-26T20:11:54Z")

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CH1 is not that far from passing, but CH0 clearly is and looks like maybe the LNA\_W is damaged on that channel.