This is the official AT&T LG Xpression Plus 3 User manual in English and Spanish provided from the manufacture.
The model name for AT&T LG Xpression Plus 3 is LM-K400AKR or K400AKR or LMK400AKR. The phone is now available for purchase from AT&T
LG Xpression Plus 3 Key features:
- 6.1″ HD+ FullVision™, Narrow Notch Display
- Dual Rear Cameras: 13MP PDAF Standard Angle / 5MP Super Wide
- 8MP Front Selfie Camera
- Android 10 OS
- 2.0GHz Octa-Core CPU
- 2GB of RAM
- 32 GB of Internal Storage
- 3,500 mAh Battery – Non-removable
Download LG Xpression Plus 3 User manual
English:
Spanish:
LM-K400AKR_ATT_UG_Web_ES_V1.0_200716.pdf
AT&T LG Xpression Plus 3 LM-K400AKR Device Diagram
For your information, The AT&T LG Xpression Plus 3 (LM-K400AKR, K400AKR, LMK400AKR) runs Android 10 OS out of the box. Maybe LG and AT&T will offer Android 11 OS Upgrade for the LG Xpression Plus 3 smartphone.
By the way, the LG Xpression Plus 3 supports software update via OTA only. The Phone does not support LG Bridge, in other words, You can not upgrade the LG Xpression Plus 3 with LG Bridge.