Firmware Flashing stuck

  • Last Post 21 November 2022
Robert Lawrence posted this 13 July 2022

Pegasus3 R4 firmware flashing after Operating Utility Update is now stuck on the following: Firmware Flashing Please wait. Firmware update is in progress... Neither of the two buttons is working (grayed out, cancel, ok). Afarid to reboot the system. Please advise. Running Mac OS Monterey v 12.4. Promise Utility V 4.06.0000.04 (C04). 

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Robert Lawrence posted this 13 July 2022

Also, the drive is still connected and I can access the data. But the utility is in the state described above. 

Raoul Schaffner posted this 21 November 2022

I have the same situation, well, nearly:

macOS 12.6.1, Promise Utility 4.06.0000.04


Firmware Update is stuck at "Please wait. Firmware update is in progress..." for 20 minutes now.

Any advice?

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  • Robert Lawrence
Babatunde Akinkuolie posted this 21 November 2022


 Kindly use the following utility to flash the firmware update again

If the issue still arises, kindly register the unit using the serial number by logging into and open a web support ticket with the service report of the unit attached so we could check further.

Steps to save the subsystem report:

1) Open Promise Utility.

2) Click subsystem information icon on the top of the window.

3) Click the lock symbol on the left bottom corner of the screen to unlock the utility.

4) Click on save service report button to save the subsystem report and attach it to the case.

Robert Lawrence posted this 21 November 2022

Raoul Schaffner:

I bravely (stupidly) rebooted after about 1hr. Largely took this step because I had a backup for the drive. It rebooted with the updated firmware in place. 

Not sure why it was "stuck" but regardless, this worked for me. Obviously not a great situation that caused some heartburn.