Oppo
Change the Region in Settings auf Oppo
ColorOS stores a region value separately from your language setting. Apps read this value to decide which local news, weather, shopping offers, or regional widgets to show you.
If you travel or import a device from another country, this region often still points to the wrong place, and local content stays off.
Where to change the region
Open Settings ➔ Additional settings ➔ Language & region ➔ Region ➔ Set the Region. Pick your current country from the list and confirm.
Some apps apply the new region immediately, others only after a restart.
What this setting does not change
The region in ColorOS is a system-level display setting. It does not switch your Google Play Store country, which is tied to your Google account and payment profile.
It also has no effect on geo-blocking used by streaming services, since those checks rely on your network location, not your phone settings.
If you need a different Play Store country, that requires a separate change in your Google account settings, and country switches there are limited and time-restricted by Google.