I had a problem with one of my alien mods that I could not get out of constantly locking it up after resting for a few seconds so here is what I did.
I let the program detect it. Then I hit only the erase button. Hit update. That totally wiped out all programming on that mod.
Leaving the program up on the screen I then connected the working alien mod, clicked connect and then switched the non working one with the working one. Look at where you uploaded the update program for the aprom file and click on the 2nd part where it uploads the config, upload it to the screen. Click the aprom and config file and update.
It totally reset my non working mod and my problem disappeared. Best case senario is that it fixes whatever problem you have. Worst case senario is it stays right where its at.
Right now I am on a chromebook and cannot see the program and don't have my pc available in order to look. Going on memory alone.
I don't see a way to upload the 1.21 version but this could fix whatever is wrong. Worth a try.
Let us know how it goes.
eta: You could try and update the config file alone. You could try this first....
Bring program up on the screen and don't touch where you update the aprom file. Instead of totally wiping your mod-- upload only the config file to your non working mod(next box down from the aprom file). Then in the buttons below where you see the check boxes for aprom, erase, config, etc. click only the config option. See if that doesn't fix the problem with the screen. If that fails then try the above.
