We recently upgraded our app Cachicha Videos Por Un Tubo v4.22, but some users not able to install app from Play Store. It says app cannot be installed providing a 505 error code. They can't even install an apk file directly on their phone.
It happens only to some users with late model Samsung phones including Samsung Galaxy 6. I can install app from Play Store successfully on my Google Nexus 6P(7.0) and other phones (S3 and S4).
I am guessing it was version compatibility issue.
https://s3.amazonaws.com/uploads.hipchat.com/115166/851533/vxYKPcGwJy3qPPP/upload.png
Here are the configuration you can refer
compileSdkVersion 23
buildToolsVersion "23.0.3"
useLibrary 'org.apache.http.legacy'
defaultConfig {
applicationId "com.cachichasocial"
minSdkVersion 11
targetSdkVersion 19
versionCode 27
versionName "4.23"
}