[Android Apps and Games] R7027:
Fast forward 9 months and here I am, landing here after a quick web search, and I have the same problem. Did you ever figure out how to "make the changes manually"?

@onyxbits Why are you ignoring us? You can see that people have questions about this.

Me: I find that the updated version of a banking app I use has turned to pretty looks and ugly functionality, a "development" in the wrong direction which I don't support. Just like 10 years ago, the current status of Google is that they still don't give users the power to downgrade an app freely. So I start googling for ways to download the needed APK for the previous version from a reputable source, and I come across "Raccoon", along with a number of sites that offer direct downloads (with exception for Aptoide which masquerades as the app you want, when in fact it's only 17 MB (where it should be over 100 MB) and the APK installs Aptoide instead of the app you want).

Me: I decide to download and test Raccoon.

Raccoon: "This application requires a Java Runtime Environment 1.7.0"

Me: OK. Fine! I will install Java.

Raccoon: "Important: to protect your privacy, do not use your primary account, but register a secondary one exclusively for use with Raccoon!"

Me: OK. I will use one of my burner Google accounts.

Raccoon: "NeedsBrowser"

Me: OK. Let me google that. Found a solution (or so I thought): DummyDroid: Needs Browser Login - Workaround: "Creating a new Raccoon profile"

Workaround: Step 1: "Fill in the the datasheet".

Me: I did that by "selecting a build-in datasheet from the menu". I selected Xiaomi from datasheet catalog menu.

Workaround: Step 2: "Enter username and password".

Me: I enter username and password of my burner account.

Workaround: Step 3: "Follow steps 2 to 5 from the previous section ["Logging in an existing Raccoon profile"]."

Me: I go to "Logging in an existing Raccoon profile" section and finish step 2 to 5.

Me: I go back to "Creating a new Raccoon profile" section.

Workaround: Step 4: "Upload the datasheet and register a new GSF ID".

Me: It doesn't tell me how to "upload the datasheet". Speculation: It would seem as if it expects me to provide a fresh and unique datasheet for a brand new Android device, and have that sent to its database server, rather than having me use "datasheet catalog" and a datasheet for a device that's already saved and uploaded on its server. So I did what I could and only did the "register a new GSF ID", and I did that with a "success" message in terminal output.

Workaround: Step 5: "Follow steps 6 and 7 from the previous section [Logging in an existing Raccoon profile]."

Me: I go to "Logging in an existing Raccoon profile" section again and read step 6.

Workaround: previous section step 6: "OPTIONAL: if you haven’t done so already, upgrade your Raccoon installation to Raccoon Premium. Otherwise, you will have to do the next step manually."

Me: It doesn't tell me how to upgrade my "Racoon installation" to Racoon Premium. Where is the BUY button? Also, from what I can tell, Racoon is a portable application, it doesn't require installation, at least not on Windows. Since this step is "OPTIONAL" (i.e. I don't have to buy if I don't want to (and I would not know how to if I wanted to)). So I decide to skip to the next step.

Workaround: previous section step 7: "Save your profile to the Raccoon database ☰ File > Save . Close DummyDroid and start Raccoon."

Me: I go to File, then click Save.

DummyDroid: "Cannot edit the database. You have to either upgrade to Raccoon Premium or make the changes manually."

Me: I close DummyDroid, and start Raccoon.

Me: I try to log in again in Raccoon.

Raccoon: "NeedsBrowser"

What am I doing wrong here?

I'd say the first and last thing I'm doing wrong here is wasting my time, life energy and electric energy on useless activities like this. I have been at this, on and off, for about three hours around noon. Including lunch, but not including keying this protest note. To think that I had to install Java just for this?! What was I thinking?! Shoot me someone please.

I have downloaded the app I wanted, using the Aptoide app. So I'm all set now.

"For technical reasons, the browser login flow cannot be implemented in Raccoon directly at this time, so you’ll have to use DummyDroid instead for now."

@onyxbits Find a way to implement this in Raccoon, and I will pay you the asking price of €25 for premium features and official support. It doesn't have to be free. But at least make that clear.