rooting – Recovering SMS messages from a non-rooted LG G6 H870

I’ve accidentally deleted some SMS messages on a non-rooted LG G6 H870 (which AFAICT can’t have its bootloader unlocked). I assume they weren’t deleted from /data/data/, only flagged as deleted; but I can’t access the database as I don’t have root permissions. What are my options for recovering those messages?