App no installed (reposting)

[AmyynJendly]

after i load the apk file with thr backdoor payload, i try to install it on an android device (android 11), but an error happens and it says the app not installed, is there any perm solution for this issue ?

there's someone else who posted the same issue 2 years ago but nothing useful, that's why i reposted it

[Ratul007]

use apkwash

[jach368]

I have the same problem, what would be the solution? When I try to install the app, the problem of invalid app appears.

[hxrofo]

modern apps are difficult to tamper with. they are protected by defensive mechanisms. try older versions of the app.
other solutions would be to try with different apktool.jar versions and different java versions.
to change java version, type this command in a terminal:
update-alternatives --config java
then choose a different version