Diagnose Android setup in the right order
Start with the simplest state: confirm the download completed and that enough storage remains for both the package and installation. Then check whether Android permission was granted to the exact browser or file manager opening the APK. Device-wide protection should remain enabled.
An “App not installed” message can indicate storage pressure, an incompatible Android version or a package/signature conflict. Record the exact message and existing app version before deleting anything. Uninstalling first can hide the most useful clue and may complicate recovery.
After setup, turn off the temporary install permission and review the app permission list. Network access may support online use; contacts, call logs, accessibility control or device administration need a clear reason. Stop if support asks for an OTP, payment PIN or remote access.
Test the new installation before a paid or timed session. Confirm the device clock, network recovery, account sign-in, transaction history and table-exit path. If one test fails, record the exact screen and time instead of repeating deposits, verification attempts or installation steps without a clear state.
Record the page URL, displayed version and observation date before acting. That small evidence trail makes later comparison possible and helps separate a file-metadata change from an Android, account or table-rule issue.