For those of you who want to install MODs, custom ROMs, and more, you will need CWM or TWRP recovery on your rooted LG G3.
Now, as of writing this post, there’s only TWRP recovery for T-Mobile LG G3 D851 but this method should work for all LG G3 models when CWM/TWRP recoveries become available in the near future for all of the different models such as D855, D850, etc…etc…
Before we begin, you need a rooted LG G3, please follow How to Root LG G3 first!
Step 1. Go to the CWM/TWRP Recovery page at LGG3Root.com and find the download the recovery image for your model of LG G3.
Step 2. Download and open ES File Explorer.
Step 3. Browser to your Download folder and find the image zip file you downloaded. Select the image zip file.
Step 4. Select “Extract” at bottom-left then hit “OK”. It will extract the recovery image file to auto-created folder in your Download folder as shown below.
Step 5. Install and open Flashify app on Play Store.
Step 6. Make sure you hit “Grant” when Superuser request window pops up then choose “Recovery image”.
Step 7. Choose “Choose a file”.
Step 8. Browse to your Download folder and select the new folder that was created when you unzipped the image zip file earlier.
Step 9. Select the image file, it’s the file ending in “.img” as shown below.