I made an app for an terminal with android 8, a few years ago.
Now I had to change a few lines. I used the latest B4A/B4X version.
I could not install the updated app.
Using my old laptop with old B4A gui worked like a charm. I changed the old code and could install the app.
But now, how can I...
I create application in b4a version 5.5, which has the signature key used by the debugger (it doesn´'t have a private key), I install the apk on several devices, now I update application using b4a version 9.5, however when reinstalling it, the error "App not install" is displayed , both...