I faced a mobile data connectivity issue while using Lineage OS on my Xiaomi MI A2 and OnePlus 9 Pro devices. Luckily, last week I met contrapunctus, who made some adjustments to the phone settings, effectively resolving the connectivity problem.

The key to resolving the problem was adding a new access point. Here’s how you can do it:

  1. Navigate to Settings -> Network Settings -> Your SIM settings -> Access Point Names.
  2. Click on the ‘+’ symbol to add a new access point.
  3. In the Name section, you can input any name (e.g., test).
  4. In the APN section, enter www and save the settings.

For visual reference, below is a screenshot illustrating the specific settings adjustments required for resolving the mobile data connectivity issue.

APN settings screenshot. Notice the circled entries.

Once you have added this new APN, ensure to select it from the list of available APNs. Following this configuration change, my mobile data connectivity improved significantly, and I began receiving speeds in line with my data plan. This solution proved effective for me within the Lineage OS environment, and I hope it proves helpful to you as well 😊.