A new firmware update has been released for LG G Stylo and LG V20 on T-Mobile. The update comes as build H63120o that bring latest security patch for T-Mobile LG G Stylo and tweaks to improve stability in over all firmware. As mentioned on the T-Mobile forum, the update fixes issues regarding e911 timer and other minor improvements to enhance smooth user-experience.
The H63120o update has landed via OTA as we speak, if your device un-rooted then you are eligible to get the update knock on your device. You can also manually grab it right away by going to Settings > About device > System updates, perform a software check, you’ll be notified if the update is available for your device. It is good to keep your device charged before you proceed to downloading or installing process.