Go to Settings > Security (or Apps) and toggle on "Install unknown apps."
If you have a "Cajita Android" and want to install apps, it is recommended to use official stores: 1. Official Google Play Store Open the on your device. Download CAJITA ANDROID YANNI apk
Search for verified streaming apps like Netflix, Amazon Prime Video, or YouTube. 2. Sideloading (Use Caution) If you must install an APK manually: Go to Settings > Security (or Apps) and