If we are outside our home network, we must activate data roaming to use mobile data, and roaming must be activated to use the Oppo smartphone abroad.

Please note: This may incur additional costs, especially outside the EU!

Android 10 (ColorOS 7.0)
Step 1:  Open the  Settings
Step 2:  Tap on  SIM card & mobile data
Step 3:  Choose desired  SIM card
Step 4:  Enable or Disable  Data roaming
  1. Open the Settings
  2. Tap on SIM card & mobile data
  3. Choose desired SIM card
  4. Enable or Disable Data roaming

Oppo Instructions
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