This is the official LG Harmony 4 LMK400AM User Manual in English and Spanish provided by the manufacture.
The office model name for the LG Harmony 4 is LMK400AM (aka LM-K400AM, K400AM), It is a variant of the LG K41 smartphone designed for Cricket Wireless.
The LG Harmony 4 features Android 10 OS, 6.1″ HD+ display, .0GHz Octa-Core Processor, 3GB of RAM, 32 GB of internal storage, and a 3500mAh non-removable battery.
LG today published the digital PDF user manual for LG Harmony 4 in English, Those who are interested in this LG Harmony 4 LMK400AM from Cricket Wireless can download the device owenrs manual from the below links.
Download LG Harmony 4 User Manual
LG Harmony 4 Specs:
UMTS/HSPA+ Bands: B2/B4/B5,
LTE Bands: B2/B4/B5/B12/B14/B29/B30/B66
Operating system: Android™ 10
Display: 6.1” HD+ FullVision Notch Display (1560 x 720)
Memory:3 GB RAM / 32 GB ROM (usable up to 17.9)
Rear camera: 13 MP/W5 MP Rear Dual Cameras with AutoFocus and flash
Front camera: 8 MP with Front-Facing Flash
Wi-Fi: 802.11 a/b/g/n
Dimensions: 6.15”(H) X 2.92”(W) X 0.34”(D)
Talk time: Up to 12 hours2
Standby time: Up to 14 days2
Battery: 3,500 mAh (non-removable)
Charging solution: USB Type C
Need to find out LG Harmony 4 Specs in detail? please refer to LG Harmony 4 specs sheet in PDF here.
For your information, the LG Harmony® 4 comes with Android 10 OS out of the box,It supports software update via OTA only.
There is no way to download the LG Harmony® 4 stock kdz firmware from LG server. The phone does not support LG Bridge either.