![OPPO Reno4 Pro 5G](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-2c7a8924-0b94-4bef-bed0-ec6e59fbb001.png?width=150&height=320)
OPPO Reno4 Pro 5G
Android 10.0
1 Find "SIM card & mobile data"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-dcb3cc6d-4af6-4520-afef-1cf345ae8870.png?width=204&height=452)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-ce341a3d-e91b-433c-aeb7-6e304666366d.png?width=204&height=452)
Press SIM card & mobile data.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-20990c7f-0f77-4aec-b2da-2b90fe7a3f30.png?width=204&height=452)
2 Turn data roaming on or off
Press the required SIM.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-9fd222a4-b718-4d4d-86e5-9541369deeaa.png?width=204&height=452)
Press the indicator next to "Data roaming" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-1b49114f-d33a-4bc3-ac8c-2cf8aac74d1b.png?width=204&height=452)
If you turn on the function, press Turn On.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-94e257e1-2842-47b5-92d9-3eb17c2d4d27.png?width=204&height=452)
3 Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-1b49114f-d33a-4bc3-ac8c-2cf8aac74d1b.png?width=204&height=452)