Here you will find all the official stock ROM flash files for the Verizon LG V40 ThinQ LMV405UA (V405UA). Verizon LG V40 ThinQ was launched in the year 2018 with Android 8.1 Oreo and later upgraded to Android 9.0 and Android 10. The device comes with Qualcomm SDM450 Snapdragon 450 with 3GB RAM support. In this article, we will guide you on how to download and install the stock ROM flash file on your Verizon LG V40 ThinQ.
As we know, Verizon rolls security patch update every month for their device, we have been tracking the update for LG V40 ThinQ in a separate article for the same; so check out our article to get all detail about the new software update for Verizon LG V40 ThinQ; Verizon LG V40 ThinQ Software Update Tracker.

Go to your phone Settings > General > About phone > Update Center. Then tap on System update> Check for update. If the new software has arrived, it will pop-up on the screen. Then simply download it. We will suggest that you connect to a good Wi-Fi network to download the OTA. In this way, you can save your carrier charges for data. Make sure your device’s battery charge is 50% or more. A low battery will hinder the installation process.
New Firmware Details
THE DETAILS
- Device Model: LG V40 ThinQ
- Carrier: Verizon
- Region: USA
- Android version: 9.0 Pie
- Security patch level (SPL): March 2020
- Software version: V405UA20g
- File size: 320MB
THE UPDATES
- What’s changing: Android device security updates
Steps to Flash Verizon LG V40 ThinQ Firmware File
We will follow the flash tool guide to install or update the LG stock firmware on the LG V40 ThinQ device. We have provided the full guide below. Check it out. Before going to the installation process, let’s take a look at the requirements as well.