Can't Enter Serial Number when activating Revit 2020

[jsgalve]

Hi everyone, I have a license for Revit 2020 and after trying to fix the License Manager, Addl and Lots of issues of R2020, I accidentally click Use trial somewhere upon trying to fix it. Since I was on a rush that day I didnt pay attention and just continue using it because it was working fine at that time anyways. 

So the next day I am activating R2020 on the Let's Get Started page, and after selecting Enter a serial number its not going to the page where it makes me enter a serial number but on some Tips for R2020. After some research I've read that there is no other way to get rid of a trial but use the product for 30 days which I did.

Now the trial has ended and trying to enter the serial number on the Let's get started page is leading me to Your trial has ended window. 

Using my workmates login when entering R2020 is working fine. Only my Autodesk account using Revit 2020 is the problem. Ive tried the solution on this thread (https://forums.autodesk.com/t5/installation-licensing/after-clicking-quot-enter-a-serial-number-quot...), but its not working

Is there a workaround on this loop I am on?

[Tony_Michniewicz]

I would start by logging into Autodesk.com, accessing the Account Portal, and expand the Revit product entry.  In the Downloads section, which activation option is listed for the 2020 version?  If activation is "sign in", then you need to use that licensing method instead of serial number.  If this is the case and your sign in leads to a trial expired message, I would recommend logging a support issue as this will require changes to your account.

If activation is "serial/key", I would recommend resetting your license as described on this page.  For Revit 2020, the correct command would be: AdskLicensingInstHelper change -pk 829L1 -pv 2020.0.0.F -lm ""

This action will set your license method to null and the LGS dialog will be automatically displayed the next time Revit is launched. Select the enter serial number option and wait until the Autodesk Privacy Statement is displayed. It can take a while for this dialog to display so please wait for at least a minute or two. If the privacy statement is not displayed, try renaming the C:\Users\Admin1\AppData\Local\Autodesk\Adlm\AdlmUserSettings.xml to AdlmUserSettings.xml.old. Occasionally this file will become corrupt and block the display of the privacy statement.