Finally, LG starts rolling out Android 9.0 Pie update to its Aristo 3 and Aristo 3 Plus. Currently, the update is rolling out on both the phones in the US on units sold on Metro by T-Mobile. LG Aristo 3 and Aristo 3 Plus Android Pie update comes with software version X220MA20A_00 and X220MB20A_00, respectively.
The update on both the phones is packed with Android 9.0 Pie with all its goodies like Adaptive Battery and Brightness, Enhanced Security Features, New Gesture Navigation, App Actions, Improved Security Features, etc. Along with all these features, the update also has an October 2019 security patch with lots of security fixes.
If you live in the US, you will automatically get an update notification. If it is not popped up on your phone then you can also check it by your self by going through the settings>> update center>> system update. If the OTA update is still not there than you can download LG Bridge, And install the update via LG Bridge software.
To download the firmware you can go through the source link below. Note before start downloading the firmware connect to the WiFi network as the update is too large. It might cost you extra if you use your mobile data. The users who installed the update do tell us your feedback about the update via comments below.