How to Backup/Restore ROM on LG G3 with TWRP Recovery!

For those of you who want to install custom ROMs on your LG G3, first you will want to learn how to make a backup ROM.

In this tutorial, we will show you how to backup and restore ROM on your rooted LG G3 using TWRP Recovery.

Backing up a ROM will backup your whole ROM (including kernel) along with your Apps, App Data and pretty much everything on your phone except personal files like photos, videos, etc…etc…

If you have lots of games on your phone, your backup may be larger than usual but a backup ROM usually is around 2GB.

I highly recommend using an OTG USB Flash Drive, this will keep all of your backup ROMs separate from your internal storage/micro-SD card.

First, you will obviously need a rooted LG G3 with TWRP Recovery installed.  (At the time of writing this, TWRP recovery is only available for T-Mobile G3 but should be available for other variants soon.)

Step 1. Use Quick Boot app to reboot into your TWRP recovery.

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Step 2. Choose “Backup” once in TWRP Recovery.

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Step 3. Choose “Storage”.

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Step 4. You can backup your ROM to your internal storage, micro SD card, or even OTG USB Flash drive.

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Step 5. Next choose “Backup Name” if you want to set a custom backup name.

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Step 6. Swipe to start backing up!

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In my case, I had a couple games that were near 1 gig each so my total backup size became around 5.7GB.

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5 Responses

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  3. Paul says:

    I just installed TWRP on my G3 D852 and I couldn’t be happier. I looking forward to the new ROMs when they come out. I was a user of Philz recovery on my S4 and I not so familiar with TWRP. It gives us the option to backup EFS as part of the nandroid backup. Is this something you would recommend? Is it even necessary? Please let me know.

    Best wishes,

    Paul

  4. Alcy Inacio says:

    Hi,

    I want to know how to backup my LG G3 D855P stock Rom BEFORE root it not after.

    In case I want revert any modification to my original stock Rom.

    Could you help me?

    Thanks

  5. aristocrap says:

    Tried to flash this and Marshmallow on my LG G3 via TWRP but kept getting baseband errors.

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