I've searched high and low but still can't find how to manually trigger a PRL update. Was having Voice, SMS and Data issues earlier this week (see T-Mobile thread) and could not figure out how to update the PRL. Updating the PRL is usually first thing to fix network connectivity issues (like when you land in a city/country you haven't been in recently).
- Is it possible on GrapheneOS to update the PRL?
- Is lack of a manual PRL update option an Android 13 issue?
Bit of background:
PRL is the Preferred Roaming List essentially the list of cell phone towers. It's the phone to network mapping pushed down by your carrier.