Set SX frequency failed error

Hello. In LimeSuiteGUI I take “Set SX frequency failed” error. When I click the calculate or tune button in SXT part I take this error. Frequency doesnt affect anything. For all frequencies I take this error.
LimeQuickTest Output:

[ TESTING STARTED ]
->Start time: Wed Feb 19 16:34:10 2020

Cannot claim interface - Resource busy
Failed to open device
libusb: error [submit_bulk_transfer] submiturb failed error -1 errno=16
libusb: error [submit_bulk_transfer] submiturb failed error -1 errno=16
Failed to open. Device is busy.
Error: Unable to connect
Failed to connect
nuric@nuric-ThinkPad-T550:~$ LimeQuickTest
[ TESTING STARTED ]
->Start time: Wed Feb 19 16:34:20 2020

->Device: LimeSDR Mini, media=USB 3.0, module=FT601, addr=24607:1027, serial=1D53BC203CA5E6
Serial Number: 1D53BC203CA5E6

[ Clock Network Test ]
->REF clock test
Test results: 61728; 9389; 22586 - PASSED
->VCTCXO test
Results : 6711027 (min); 6711187 (max) - PASSED
->Clock Network Test PASSED

[ FPGA EEPROM Test ]
->Read EEPROM
->Read data: 13 07 10 13 07 10 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):
SetFrequencySXT(1005 MHz) - cannot deliver frequency
->Run Tests (TX_1 -> LNA_H):
SetFrequencySXT(2105 MHz) - cannot deliver frequency
->RF Loopback Test FAILED

=> Board tests FAILED <=

Elapsed time: 2.24 seconds

When I tried to calibrate from LimeSuiteGUI I take “Tx calibration failed: Tx Calibration: MCU error 4 (SXT tune failed)” error also.

LimeUtil --info output:
######################################################

LimeSuite information summary

######################################################

Version information:
Library version: v19.04.0-gabf82140
Build timestamp: 2019-12-27
Interface version: v2019.1.0
Binary interface: 19.04-1

System resources:
Installation root: /usr/local
User home directory: /home/nuric
App data directory: /home/nuric/.local/share/LimeSuite
Config directory: /home/nuric/.limesuite
Image search paths:
- /home/nuric/.local/share/LimeSuite/images
- /usr/local/share/LimeSuite/images

Supported connections:

  • FT601
  • FX3
  • PCIEXillybus

LimeUtil --make output:

Make device
Device name: LimeSDR-Mini
Expansion name: UNSUPPORTED
Firmware version: 6
Hardware version: 2
Protocol version: 1
Gateware version: 1
Gateware revision: 28
Gateware target: LimeSDR-Mini
Serial number: 0x1d53bc203ca5e6
Free connection… OK

Thanks for help.