SIM Card Install

[ryo]

Hello, I have a ATT nano sim card and have the micro adapter. I have tried several times to insert the sim card into my PinePhone 64 with no success. I have searched online to see if there is something I am doing wrong.

Any advice/help is greatly appreciated.

Thank you!

You need to set up the APN manually.

A few months ago when I got a Pinephone, I was struggling to get my Softbank USIM to work on it, in the end it turned out that Softbank only supports Android and iOS (and garake (aka flip phone), but they're running degoogled Android anyway).
And somebody else here sent me a DM explaining that they had the same problem with ATT, but TracFone and PureTalk worked fine.
Likewise for me, Rakuten Mobile was the one that worked.

So the problem might be more related to ATT rather than the USIM or the phone.