Hackrf Pro - RSSI Mux Test Fail
What outcome were you hoping for?
I have been using multiple HackRF devices. In which some of them are reporting RSSI MUX Test Failure and TX not working too..
This issue can be fixed ONLY by doing hard reset every time after powered ON using the following command hackrf_spiflash -R
I tried installing the firmware suggested by #1696 (hackrf_pro_6968b1c2.zip) and hard reset, but still issue persists after multiple reboot. It seems to be working ONLY for some time.. Again it popped up again after certain reboots.
hackrf_info version: 2026.01.3 libhackrf version: 2026.01.3 (0.9.2) Found HackRF Index: 0 Serial number: 0000000000000000977c64de2d5b5a13 Board ID Number: 5 (HackRF Pro) Firmware Version: git-6968b1c2 (API:1.11) Part ID Number: 0xa0000a30 0x00584764 Hardware Revision: r1.2 Hardware appears to have been manufactured by Great Scott Gadgets. Hardware supported by installed firmware: HackRF Pro This device is on its own USB bus.
Found HackRF Index: 1 Serial number: 0000000000000000977c64de2b0e4313 Board ID Number: 5 (HackRF Pro) Firmware Version: git-6968b1c2 (API:1.11) Part ID Number: 0xa0000a30 0x00544f69 Hardware Revision: r1.2 Hardware appears to have been manufactured by Great Scott Gadgets. Hardware supported by installed firmware: HackRF Pro Self-test FAIL: Mixer: RFFC5072, ID: 4416, Rev: 1, Locks: 111 (PASS) Clock: Si5351, Rev: 1, readback: OK Transceiver: MAX2831, RSSI mux test: FAIL FPGA configuration: FAIL FPGA SPI: SKIP SGPIO RX test: SKIP Loopback test: SKIP 0:0,0,0,0,0,0 1:0,0,0,0,0,0 2:0,0,0,0,0,0 3:0,0,0,0,0,0 This device is on its own USB bus.
I also tried with official firmware too, but it did not help:
module01@raspberrypi:~ $ hackrf_info hackrf_info version: 2026.01.3 libhackrf version: 2026.01.3 (0.9.2) Found HackRF Index: 0 Serial number: 0000000000000000977c64de2d5b5a13 Board ID Number: 5 (HackRF Pro) Firmware Version: 2026.01.3 (API:1.10) Part ID Number: 0xa0000a30 0x00584764 Hardware Revision: r1.2 Hardware appears to have been manufactured by Great Scott Gadgets. Hardware supported by installed firmware: HackRF Pro This device is on its own USB bus.
Found HackRF Index: 1 Serial number: 0000000000000000977c64de2b0e4313 Board ID Number: 5 (HackRF Pro) Firmware Version: 2026.01.3 (API:1.10) Part ID Number: 0xa0000a30 0x00544f69 Hardware Revision: r1.2 Hardware appears to have been manufactured by Great Scott Gadgets. Hardware supported by installed firmware: HackRF Pro Self-test FAIL: Mixer: RFFC5072, ID: 4416, Rev: 1, Locks: 111 (PASS) Clock: Si5351, Rev: 1, readback: OK Transceiver: MAX2831, RSSI mux test: FAIL FPGA configuration: FAIL FPGA SPI: SKIP SGPIO RX test: SKIP Loopback test: SKIP 0:0,0,0,0,0,0 1:0,0,0,0,0,0 2:0,0,0,0,0,0 3:0,0,0,0,0,0 This device is on its own USB bus.
Please suggest?
Also the Self Test messages from hackrf_info is disappearing after hard reset: why?
module01@raspberrypi:~ $ hackrf_spiflash -d 0000000000000000977c64de2b0e4313 -w hackrf-2026.01.3/firmware-bin/hackrf_pro_usb.bin File size 240152 bytes. Checking target device compatibility Erasing SPI flash. Writing 240152 bytes at 0x000000.
module01@raspberrypi:~ $ hackrf_spiflash -d 0000000000000000977c64de2b0e4313 -R
module01@raspberrypi:~ $ hackrf_info hackrf_info version: 2026.01.3 libhackrf version: 2026.01.3 (0.9.2) Found HackRF Index: 0 Serial number: 0000000000000000977c64de2d5b5a13 Board ID Number: 5 (HackRF Pro) Firmware Version: git-6968b1c2 (API:1.11) Part ID Number: 0xa0000a30 0x00584764 Hardware Revision: r1.2 Hardware appears to have been manufactured by Great Scott Gadgets. Hardware supported by installed firmware: HackRF Pro This device is on its own USB bus.
Found HackRF Index: 1 Serial number: 0000000000000000977c64de2b0e4313 Board ID Number: 5 (HackRF Pro) Firmware Version: 2026.01.3 (API:1.10) Part ID Number: 0xa0000a30 0x00544f69 Hardware Revision: r1.2 Hardware appears to have been manufactured by Great Scott Gadgets. Hardware supported by installed firmware: HackRF Pro This device is on its own USB bus.
I also referred the following tickets: #1696 #1782 #1646
Please suggest?
What outcome actually happened?
Some of the SDRs are reposting this issue with the default firmware. Then i tried updating the firmware's 2026.01.3 and hackrf_pro_6968b1c2. But it did not help after certain time.
The only ways it works is to do hard reset every time after manual power cycle. hackrf_spiflash -R
What operating systems are you seeing the problem on?
Raspberry Pi 5
What is the output of hackrf_info?
hackrf_info hackrf_info version: 2026.01.3 libhackrf version: 2026.01.3 (0.9.2) Found HackRF Index: 0 Serial number: 0000000000000000977c64de2d5b5a13 Board ID Number: 5 (HackRF Pro) Firmware Version: 2026.01.3 (API:1.10) Part ID Number: 0xa0000a30 0x00584764 Hardware Revision: r1.2 Hardware appears to have been manufactured by Great Scott Gadgets. Hardware supported by installed firmware: HackRF Pro This device is on its own USB bus.
Found HackRF Index: 1 Serial number: 0000000000000000977c64de2b0e4313 Board ID Number: 5 (HackRF Pro) Firmware Version: 2026.01.3 (API:1.10) Part ID Number: 0xa0000a30 0x00544f69 Hardware Revision: r1.2 Hardware appears to have been manufactured by Great Scott Gadgets. Hardware supported by installed firmware: HackRF Pro Self-test FAIL: Mixer: RFFC5072, ID: 4416, Rev: 1, Locks: 111 (PASS) Clock: Si5351, Rev: 1, readback: OK Transceiver: MAX2831, RSSI mux test: FAIL FPGA configuration: FAIL FPGA SPI: SKIP SGPIO RX test: SKIP Loopback test: SKIP 0:0,0,0,0,0,0 1:0,0,0,0,0,0 2:0,0,0,0,0,0 3:0,0,0,0,0,0 This device is on its own USB bus.
Are you using any third-party software?
No
Are you using any third-party hardware?
No
Source: greatscottgadgets/hackrf