Since approximately 2024-04-02, the latest LG Dev Mode app (2.1.2 in the Content Store) copies and resets the permissions of jail_app.conf
/jail_app.conf.sig
on every boot. Therefore, jailpatch.sh
etc. will no longer work.
If you have webOS 5+ and old enough firmware, WTA (which does not require Dev Mode) will still work.
If you have webOS 4.x, you can try CVE-2023-6319. It is unpatched on the latest (final?) firmware for webOS 4.0 (2018) models.