Earlier quoted context omitted.
The first linked tweeter thread is from July 2018, the second is from November 2018. I don't classify that as "too old". And your article is dated October 25, 1028, so it's approximately the same period of time. Also, your article is extremely similar to https://medium.com/@fs0c131y/how-i-found-the-database-of-the... (Oct 16, 2018)
That's the time I found the bug by the inspiration of "Elliot Alderson"
> Static Analysis
> From my phone, I exported the APK to my computer. I used the app called APK Export
> Play Store Link
> I used apktool to get the resources of the app.
> I used jadx to obtain the decompiled source code from the extracted DEX file.
> Now, I have everything I need.
----- with ------
> Static Analysis
> 1) From my phone, I exported the APK to my computer. You can use this app for example:
> [APK Export (Backup & Share) - Apps on Google Play]
> 2) An APK is a ZIP file, so I unzipped it and extracted the DEX file.
> 3) Thanks to jadx, I managed to obtain the decompiled source code from the extracted DEX file.
> 4) To finish, I used apktool to get the resources of the app.
> Now, I have everything I need.