كيف اقدر اضيف هاذا المحتوى على الهاتف او اضبطة؟

Why does this appear when I install any app from outside the store?

My S20 Ultra device has an issue where, when I download an application from a web browser, Telegram, or any other source besides the app store, it doesn't install and says "package error." Please advise?

Is there an update for the Galaxy S20 Ultra to version 14?هل يوجد لجهاز اس 20التراء تحديث لاصدار 14؟