I purchased a LimeSDR either last year or the year below.
The first thing I tried (after adding a heatsink) with it was to see if I could get OpenAirInterface or srsLTE running. I got it running…once. I constantly had issues with things like self-tests failing and whatnot. I constantly had issues with calibrations failing and whatnot. I set it aside and picked it back up every few months, assuming that it was simply user error. I tried a multitude of host computers, operating systems, drivers, utils, and no matter what I did I was constantly getting USB resets and device-busies and whatnot, but I still thought I must be doing something wrong. Oftentimes it would work at the start but quickly stop working after only a few minutes.
Only after searching for many hours today after sitting in front of a 10-foot satellite dish trying to even get gqrx to work did I wonder: perhaps my device is faulty? I’ve been having these issues since day 1.
LimeQuickTest usually fails.
[ TESTING STARTED ]
->Start time: Tue Apr 27 21:47:29 2021
->LimeSuite version: 20.10.0-20.10.0
->Device: LimeSDR Mini, media=USB 2.0, module=FT601, addr=24607:1027, serial=1D4C38EA89638A, HW=2, GW=1.30
Warning: USB3 not available
Serial Number: 1D4C38EA89638A
Chip temperature: 37 C
[ Clock Network Test ]
->REF clock test
Test results: 36109; 49306; 62502 - PASSED
->VCTCXO test
Results : 6711060 (min); 6711212 (max) - PASSED
->Clock Network Test PASSED
[ FPGA EEPROM Test ]
->Read EEPROM
->Read data: 13 02 0D 13 02 0D 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 ]
->Configure LMS
->Run Tests (TX_2 -> LNA_W):
CH0 (SXR=1000.0MHz, SXT=1005.0MHz): Result:(-21.1 dBFS, 5.00 MHz) - FAILED
->Run Tests (TX_1 -> LNA_H):
CH0 (SXR=2100.0MHz, SXT=2105.0MHz): Result:(-22.0 dBFS, 5.00 MHz) - FAILED
->RF Loopback Test FAILED
=> Board tests FAILED <=
Elapsed time: 2.65 seconds
What can I do? Is my board really faulty?