I just changed my phone company to fido. I want to keep using my old phone LG stylo 4+. I installed new fido SIM card and phone line is working. But, I can't access internet. I think I have to change Network. Please help me change network setting.
Welcome to the community!
Firstly, I don't believe that phone is 5G compatible. In addition, as far as I am aware, I don't believe Fido is providing 5G services.
That said, if you would like to use your old phone with Fido, have you verified that the phone has compatible bands/frequencies? You can verify those bands/frequencies here.
In order to access data, you would need to verify the phone is using the proper APN. Since the phone is LTE-capable, it should be using ltemobile.apn. You can verify those settings here.
Hope this helps 😀