Issue with eSIM connected but not loading data

I panicked a bit about this during my last trip. My phone said it was connected to the network but had no data. Turns out the issue was with the APN—I had copied an APN code from a Vietnamese operator I found on a forum, thinking it would help, but it actually broke my connection on a travel eSIM. I removed it, reset to default, and it worked right away.

Also, FYI: it’s normal for a travel eSIM not to activate until you’ve landed and turned airplane mode back off. Don’t panic and delete the profile before landing—it’s not broken.

I found a solid troubleshooting guide that covers other cases (no service, signal but no data, etc.) here: https://sogdiaroam.com/fr/blog/esim-ne-fonctionne-pas-au-vietnam