Lime SDR Mini RF Loopback Test Failed

Hello,
I am receiving the following error while performing LimeSDR TestAPP to test my
LimeSDR Mini: RF Loopback Test Failed. Please suggest required troubleshooting.
[ TESTING STARTED ]
->Start time: Tue Aug 20 13:32:01 2019
->Device: LimeSDR Mini, media=USB 3.0, module=FT601, addr=24607:1027,
serial=1D3AD74F809864
Serial Number: 1D3AD74F809864
[ Clock Network Test ]
->REF clock test
Test results: 47571; 60768; 8429 - PASSED
->VCTCXO test
Results : 6711002 (min); 6711168 (max) - PASSED
->Clock Network Test PASSED
[ FPGA EEPROM Test ]
->Read EEPROM
->Read data: 12 02 18 12 02 18 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:(-22.4 dBFS, 5.00 MHz) - FAILED
->Run Tests (TX_1 -> LNA_H):
CH0 (SXR=2100.0MHz, SXT=2105.0MHz): Result:(-28.0 dBFS, 5.00 MHz) - FAILED
->RF Loopback Test FAILED
=> Board tests FAILED <=
Elapsed time: 2.51 seconds