800xA 5.1 / AC800m - Serial Firmware Upgrade tool - stuck on 99%

I'm trying to downgrade the firmware on a PM860 controller by connecting to the COM4 port and using the serial firmware upgrade tool. It seemed to go fine until it got stuck on "Sending file... 99% done." It's been stuck there for a couple of hours. See the attached screenshot.

What do I do? I don't want to brick the controller.

serialfirmwarefcc.PNG

Comments (0) New comment

janedoe89 Rank: 779

Asked 7 months ago

Answer this question Follow

Voted best answer

Try with 9600 baud rate

Comments (1) New comment

Basappa G Rank: 53

Answered 7 months ago

Answers

I've had such a situation once. It was caused by the com port on the PC somehow not working correctly. You could upgrade the firmware with a compact flash card + card reader. This works normaly also if the flashing has gone wrong.

Comments (0) New comment