I need another phone just for WhatsApp business use. So I bought a new oppo phone A5s. Android version 8.1.

Then Google play cannot open. Asked chatgpt, need to manually download the APK version. But the step are so hard and confusing.

Now I stuck edi. Phone don't have Google play store. Can't even install hotline to active the number and can't open WhatsApp coz can't download.

Why manually installing APK so hard one