AK, you might be thinking of the 970 and using a USB-to-serial adapter. I believe on the 990, USB is the preferred method.

That could be - some USB-to-serial adapters worked fine for the 1070/970, while others apparently took an insanely long time. With the 990, USB or RS232 will work fine, but USB is becoming much easier to find...

I have been following the directions but the part that holds it up is when it says for the dialog box "outlaw.inf", the dialog box gives me 2 options "firmware" which it does not let me select & "990 drivers" which it does let me select which contains the outlaw.inf among other files. It loads that total files but nothing happens. I can't seem to just get outlaw.inf. Also I loaded that 990 drivers, did system reset still have 3.07.04.

IMPORTANT NOTE: In the event that an error occurs during the upgrade, the process will stop and a pop-up box will appear with a “Device (Outlaw) Restart!” message. If this happens check the data connection cable, click on the “OK” button within the pop-up and then turn the Model 990 Off and then On again within one second. Click on the Upgrade button in the software loader and restart the process from Step 7.

I had the above happen to me the first time I tried to load the firmware. The above procedure allowed the firmware to upgrade. Did this happen to you?