# LimeSDR-USB LimeQuickTest Failure

**URL:** <https://discourse.myriadrf.org/t/limesdr-usb-limequicktest-failure/6499>\
**Category:** General Discussion\
**Created:** [2 September 2020 04:10 UTC](https://discourse.myriadrf.org/t/limesdr-usb-limequicktest-failure/6499 "2020-09-02T04:10:29Z")\
**Posts on this page:** 8\
**Page:** 1

<div class="post-metadata">

**Author:** ![aziz891](https://avatars.discourse-cdn.com/v4/letter/a/4af34b/32.png) [@aziz891](https://discourse.myriadrf.org/u/aziz891)\
**Post date:** [2 September 2020 04:10 UTC](https://discourse.myriadrf.org/t/limesdr-usb-limequicktest-failure/6499/1 "2020-09-02T04:10:29Z")

</div>

Just got my LimeSDR-USB Today.

I ran the LimeQuickTest in Windows and Ubuntu and both fail with same Log below:

CLK1: 17554 / 17554 - PASSED  
CLK2: 17554 / 17554 - PASSED  
CLK3: 17554 / 17554 - PASSED  
CLK4: 17554 / 17554 - PASSED  
CLK5: 17554 / 17554 - PASSED  
CLK6: 17554 / 17554 - PASSED  
-\>ADF4002 Test  
Result: 10 - PASSED  
-\>VCTCXO test  
Results : 5112948 (min); 5113087 (max) - PASSED  
-\>Clock Network Test PASSED

[FPGA EEPROM Test]  
-\>Read EEPROM  
-\>Read data: 12 08 03 12 08 03 02  
-\>FPGA EEPROM Test PASSED

[LMS7002M Test]  
-\>Perform Registers Test  
-\>External Reset line test  
Reg 0x20: Write value 0xFFFD, Read value 0xFFFD  
Reg 0x20: value after reset 0x0FFFF  
-\>LMS7002M Test PASSED

[RF Loopback Test]  
Note: The test should be run without anything connected to RF ports  
-\>Configure LMS  
-\>Run Tests (TX\_2-\> LNA\_L):  
CH0 (SXR=800.0MHz, SXT=805.0MHz): Result:(-14.9 dBFS, 5.00 MHz) - PASSED  
CH1 (SXR=800.0MHz, SXT=805.0MHz): Result:(-17.1 dBFS, 5.00 MHz) - PASSED  
-\>Run Tests (TX\_1 -\> LNA\_W):  
CH0 (SXR=1800.0MHz, SXT=1805.0MHz): Result:(-15.4 dBFS, 5.00 MHz) - PASSED  
CH1 (SXR=1800.0MHz, SXT=1805.0MHz): Result:(-19.6 dBFS, 5.00 MHz) - PASSED  
-\>Run Tests (TX\_2-\> LNA\_H):  
CH0 (SXR=2500.0MHz, SXT=2505.0MHz): Result:(-37.8 dBFS, 5.00 MHz) - FAILED  
CH1 (SXR=2500.0MHz, SXT=2505.0MHz): Result:(-14.9 dBFS, 5.00 MHz) - PASSED  
-\>RF Loopback Test FAILED

=\> Board tests FAILED \<=

Elapsed time: 5.14 seconds

I would certainly appreciate any help I could get.

Thanks.

---

<div class="post-metadata">

**Author:** ![andrewback](https://avatars.discourse-cdn.com/v4/letter/a/22d042/32.png) [@andrewback](https://discourse.myriadrf.org/u/andrewback)\
**Post date:** [2 September 2020 07:09 UTC](https://discourse.myriadrf.org/t/limesdr-usb-limequicktest-failure/6499/2 "2020-09-02T07:09:56Z")

</div>

Just to check that when running LimeQuickTest:

1. The board was cold

2. Nothing was connected to any of the RF ports

---

<div class="post-metadata">

**Author:** ![aziz891](https://avatars.discourse-cdn.com/v4/letter/a/4af34b/32.png) [@aziz891](https://discourse.myriadrf.org/u/aziz891)\
**Post date:** [2 September 2020 14:42 UTC](https://discourse.myriadrf.org/t/limesdr-usb-limequicktest-failure/6499/3 "2020-09-02T14:42:10Z")

</div>

I made sure that the board was cold when I ran the test and nothing was connected to RF Ports.

Below is a temperature reading from the test:

-\>Device: LimeSDR-USB, media=USB 3.0, module=FX3, serial=0009072C02891816, index=0, HW=4, GW=2.21  
Serial Number: 0009072C02891816  
Chip temperature: 22 C

---

<div class="post-metadata">

**Author:** ![andrewback](https://avatars.discourse-cdn.com/v4/letter/a/22d042/32.png) [@andrewback](https://discourse.myriadrf.org/u/andrewback)\
**Post date:** [3 September 2020 10:46 UTC](https://discourse.myriadrf.org/t/limesdr-usb-limequicktest-failure/6499/4 "2020-09-03T10:46:22Z")

</div>

Thanks.

@Zack, if you could please take a look and advise.

---

<div class="post-metadata">

**Author:** ![aziz891](https://avatars.discourse-cdn.com/v4/letter/a/4af34b/32.png) [@aziz891](https://discourse.myriadrf.org/u/aziz891)\
**Post date:** [9 September 2020 02:08 UTC](https://discourse.myriadrf.org/t/limesdr-usb-limequicktest-failure/6499/5 "2020-09-09T02:08:17Z")

</div>

@Zack, Would certainly appreciate any help I could get or arrange for an RMA like other posts in the forum.

---

<div class="post-metadata">

**Author:** ![Zack](https://yyz2.discourse-cdn.com/flex034/user_avatar/discourse.myriadrf.org/zack/32/89_2.png) [@Zack](https://discourse.myriadrf.org/u/Zack)\
**Post date:** [9 September 2020 05:00 UTC](https://discourse.myriadrf.org/t/limesdr-usb-limequicktest-failure/6499/6 "2020-09-09T05:00:59Z")

</div>

Hi @aziz891,

Could you update to the board, please. The latest GW is 2.23, while yours is 2.21. Then share LimeQuickTest log here again.  
Latest LimeSuiteGUI:  
[https://wiki.myriadrf.org/LimeSuiteGUI](https://wiki.myriadrf.org/LimeSuiteGUI)  
Latest LimeQuickTest:  
[https://wiki.myriadrf.org/LimeQuickTest](https://wiki.myriadrf.org/LimeQuickTest)

---

<div class="post-metadata">

**Author:** ![aziz891](https://avatars.discourse-cdn.com/v4/letter/a/4af34b/32.png) [@aziz891](https://discourse.myriadrf.org/u/aziz891)\
**Post date:** [9 September 2020 06:15 UTC](https://discourse.myriadrf.org/t/limesdr-usb-limequicktest-failure/6499/7 "2020-09-09T06:15:57Z")

</div>

Thank you for your support.

I updated the board with LimeUtil --update. and this is the log I got (on Ubuntu) which is the same as before:

[TESTING STARTED]  
-\>Start time: Wed Sep 9 09:04:46 2020

-\>Device: LimeSDR-USB, media=USB 3.0, module=FX3, addr=1d50:6108, serial=0009072C02891816, HW=4, GW=2.23  
Serial Number: 0009072C02891816  
Chip temperature: 23 C

[Clock Network Test]  
-\>FX3 GPIF clock test  
Test results: 24658; 28414; 32170 - PASSED  
-\>Si5351C test  
CLK0: 17554 / 17554 - PASSED  
CLK1: 17554 / 17554 - PASSED  
CLK2: 17554 / 17554 - PASSED  
CLK3: 17554 / 17554 - PASSED  
CLK4: 17554 / 17554 - PASSED  
CLK5: 17554 / 17554 - PASSED  
CLK6: 17554 / 17554 - PASSED  
-\>ADF4002 Test  
Result: 10 - PASSED  
-\>VCTCXO test  
Results : 5112936 (min); 5113077 (max) - PASSED  
-\>Clock Network Test PASSED

[FPGA EEPROM Test]  
-\>Read EEPROM  
-\>Read data: 12 08 03 12 08 03 02  
-\>FPGA EEPROM Test PASSED

[LMS7002M Test]  
-\>Perform Registers Test  
-\>External Reset line test  
Reg 0x20: Write value 0xFFFD, Read value 0xFFFD  
Reg 0x20: value after reset 0x0FFFF  
-\>LMS7002M Test PASSED

[RF Loopback Test]  
Note: The test should be run without anything connected to RF ports  
-\>Configure LMS  
-\>Run Tests (TX\_2-\> LNA\_L):  
CH0 (SXR=800.0MHz, SXT=805.0MHz): Result:(-13.3 dBFS, 5.00 MHz) - PASSED  
CH1 (SXR=800.0MHz, SXT=805.0MHz): Result:(-15.2 dBFS, 5.00 MHz) - PASSED  
-\>Run Tests (TX\_1 → LNA\_W):  
CH0 (SXR=1800.0MHz, SXT=1805.0MHz): Result:(-12.8 dBFS, 5.00 MHz) - PASSED  
CH1 (SXR=1800.0MHz, SXT=1805.0MHz): Result:(-15.6 dBFS, 5.00 MHz) - PASSED  
-\>Run Tests (TX\_2-\> LNA\_H):  
CH0 (SXR=2500.0MHz, SXT=2505.0MHz): Result:(-36.7 dBFS, 5.00 MHz) - FAILED  
CH1 (SXR=2500.0MHz, SXT=2505.0MHz): Result:(-13.7 dBFS, 5.00 MHz) - PASSED  
-\>RF Loopback Test FAILED

=\> Board tests FAILED \<=

Elapsed time: 1.48 seconds

I have also done the the self test example and this the FFT plots I got, which are different from what is in the example:

 ![Screenshot from 2020-09-09 09-11-28](https://canada1.discourse-cdn.com/flex034/uploads/myriadrf/original/2X/8/8c083922164a29c1977c1be87db33a11db2e3b4b.png)

I also get this error when I try to tune SXT as in the self\_test example:

[09:12:35] DEBUG: csw=192 cmphl=3  
[09:12:35] DEBUG: csw=160 cmphl=3  
[09:12:35] DEBUG: csw=144 cmphl=3  
[09:12:35] DEBUG: csw=136 cmphl=3  
[09:12:35] DEBUG: csw=132 cmphl=3  
[09:12:35] DEBUG: csw=130 cmphl=3  
[09:12:35] DEBUG: csw=129 cmphl=3  
[09:12:35] DEBUG: Failed to lock  
[09:12:35] DEBUG: cmphl=2

---

<div class="post-metadata">

**Author:** ![Zack](https://yyz2.discourse-cdn.com/flex034/user_avatar/discourse.myriadrf.org/zack/32/89_2.png) [@Zack](https://discourse.myriadrf.org/u/Zack)\
**Post date:** [9 September 2020 06:30 UTC](https://discourse.myriadrf.org/t/limesdr-usb-limequicktest-failure/6499/8 "2020-09-09T06:30:44Z")

</div>

Hi @aziz891,

Contact CrowdSupply for RMA, please. Sorry for inconvenience.