The LG Xpression Plus LM-X410ASR (aka X410ASR) on AT&T shipped with Android Oreo 8.1 out of the box and it received the Android 9.0 Pie Update on Nov. 12, 2019.
The Android Pie Pie update for AT&T LG Xpression Plus arrived as software version X410ASR20b!
On December 12, 2019, The device received the security patch update based on Android 9.0 Pie. The update arrives as software version X410ASR20c and includes the December 2019 Android Security Patch.
- Release date: December 12, 2019
- Android version: 9.0
- Security patch level (SPL): December 1, 2019
- Build number: PKQ1.190522.001
- Software version: X410ASR20c
Like many other AT&T LG devices, the LG Xpression Plus LM-X410ASR (aka X410ASR) supports software update via OTA only.There is no way to download the stock kdz firmware for the device.
If someone can capture the download URL of the OTA Update file – X410ASR20b-to-X410ASR20c.up, Then you can download the OTA file.
You can manually install the OTA Update with the LGUP tool.
By the way, LG has already published the Android Pie Version manual for the LG Xpression Plus LM-X410ASR (aka X410ASR) on AT&T, You can download it here.