What to Do If Mobile Data Is Slow on Your OPPO Phone
If you’re experiencing slow or unstable mobile data on your OPPO phone, it may be due to a combination of network, hardware, or software-related factors. This guide outlines several practical steps you can follow to troubleshoot and improve your data connection.
Check Your Mobile Data Plan
First, make sure your mobile data plan is active and has sufficient remaining data. If your plan has expired or you’ve reached your data limit, you may experience reduced speeds or complete disconnection.
Remove Metal or Magnetic Phone Cases
Protective cases made of metal, electroplated materials, or magnetic components can interfere with signal strength. Remove the case temporarily and observe whether the signal improves.
Move to an Area with Stronger Signal
Signal quality can vary by location. You may experience slow speeds in areas such as:
High-rise buildings
Shopping malls and supermarkets
Concert venues and offices
Parks, highways, underground garages, and elevators
Try moving to an open area with fewer obstructions or less network congestion to see if the connection improves.
Reset the Access Point
Incorrect access point settings may affect your data performance. Resetting the APN settings forces the device to re-read the information from the mobile network and your SIM card. To reset:
For ColorOS 12 and above
[Settings] > [Mobile network] > Select the active SIM card > Tap [Access Point Name] and tap the [3-dotted] line icon at the upper right corner, then tap [Reset Access Points].
For ColorOS 11 to 11.3
[Settings] > [SIM card & mobile data] > Select the active SIM card > Tap [Access Point Name] and tap the [2-dotted] line icon at the upper right corner, then tap [Reset Access Points].
For ColorOS 7 to 7.2
[Settings] > [SIM card & mobile data] > Select the active SIM card > [Access Point Name] and tap.
Check for Third-Party Apps
Certain security, VPN, network booster, or accelerator apps can interfere with mobile data performance. Try disabling or uninstalling them temporarily to rule out app-related issues.
Turn Off Data Saving Mode
If data saving is enabled, it may restrict background data use and slow down certain apps:
ColorOS 12 and above: Go to [Settings] > [Mobile Network] > [Data usage] > [Data Saving]
ColorOS 7 to 11.3: Go to [Settings] > [SIM Card & Data Management] > [Data Management] > [Data Saving]
Toggle the switch to off and check if the connection improves.
When to Contact Support
If none of these steps resolve the issue:
Bring your purchase receipt for warranty support
A professional technician can inspect your device and provide further assistance.
* Pictures, settings, and paths might differ from those of your phone, but that does not affect the description in this article. In addition to this, all photos shown are for illustration purposes ONLY. Actual products may vary due to product enhancement.