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How to Root LG G4 Beat: Full Guide

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How to Root LG G4 Beat: Full Guide

Rooting your LG G4 Beat (also known as the LG H735) gives you full administrative control over the Android operating system, letting you remove bloatware, install root-only apps, tweak performance, and flash custom mods. This guide walks you through the safest method using LG’s official bootloader unlock (where available) and Magisk, which is the current standard for systemless root. Before you start, back up your data, charge your phone to at least 70%, and understand that rooting voids your warranty and carries a small risk of bricking the device.

What You’ll Need

  • LG G4 Beat (model H735) with an unlocked bootloader – check LG’s official unlock site for your region.
  • A Windows PC (or a Mac/Linux with ADB setup).
  • USB cable that supports data transfer.
  • ADB and Fastboot tools installed on your PC (download from the Android developer site).
  • Magisk APK (latest stable) – download from the official Magisk GitHub.
  • Magisk patched boot image – you’ll create this using the Magisk app on your phone.
  • A backup of your internal storage (photos, documents, etc.).
  • Stock firmware files for your exact model (in case you need to restore).

Step-by-Step

  1. Unlock the bootloader (if not already done): Go to LG’s official bootloader unlock page, select your device, and follow the instructions. This typically involves enabling Developer Options (tap Build Number 7 times in Settings > About Phone), enabling OEM unlocking, then using ADB to get a unique device ID and submitting it to LG. You’ll receive an unlock code; enter it via fastboot to unlock. Note: Not all regions/models are eligible – if yours isn’t, you cannot proceed with this method.
  2. Back up your data: Use LG Backup or a third-party app to save your contacts, messages, and media. Unlocking the bootloader wipes your phone.
  3. Enable Developer Options and USB Debugging: Go to Settings > About Phone > Software Info, tap Build Number 7 times. Then go to Settings > Developer Options and enable USB Debugging and OEM Unlock.
  4. Install ADB and Fastboot on your PC: Download the platform-tools zip, extract it to a folder like C:\adb, and add that folder to your system PATH or open a command prompt there.
  5. Connect your phone to the PC: Plug in the USB cable, and on your phone accept the RSA fingerprint prompt for USB debugging. Verify with the command adb devices – your device should show as “device�.
  6. Reboot to bootloader: Run adb reboot bootloader. Your phone will reboot into fastboot mode (a screen with a fastboot logo).
  7. Unlock the bootloader (if not done): In fastboot mode, run fastboot oem unlock (or fastboot flashing unlock on some models). Confirm on the phone screen. This erases all data and reboots.
  8. Re-enable USB debugging after the wipe: Go through the Developer Options setup again (tap Build Number 7 times, enable USB debugging).
  9. Download the stock boot image: Find the stock firmware for your exact model (H735) from a reliable source like LG Firmware (not official, but widely used). Extract the boot.img from the KDZ or TOT file using tools like LGUP or a KDZ extractor.
  10. Create a Magisk-patched boot image: Transfer the boot.img to your phone. Install the Magisk APK, open it, tap “Install� > “Select and Patch a File�, and choose the boot.img. Magisk will create a patched file in your Downloads folder (usually named magisk_patched-*.img).
  11. Copy the patched image to your PC: Use adb pull /sdcard/Download/magisk_patched-*.img (or find the exact path) to copy it to your PC.
  12. Reboot to fastboot again: Run adb reboot bootloader.
  13. Flash the patched boot image: In fastboot mode, run fastboot flash boot magisk_patched-*.img. Wait for the “OKAY� message.
  14. Reboot your phone: Run fastboot reboot. Your phone will boot up normally.
  15. Verify root: Install a root checker app from the Play Store, or open the Magisk app – it should show “Magisk is installed� and “Installed� under the Magisk section.

Common Mistakes

  • Using the wrong boot image – make sure it’s for your exact model (H735) and software version.
  • Not unlocking the bootloader first – flashing a patched boot image on a locked bootloader will fail or brick.
  • Skipping the backup – unlocking wipes data, and you might lose everything.
  • Using an outdated ADB version – always use the latest platform-tools.
  • Flashing the patched image to the wrong partition – double-check you’re flashing “bootâ€�, not “recoveryâ€� or “systemâ€�.
  • Ignoring the “OEM unlockâ€� toggle – if it’s off, fastboot will refuse to unlock.

Tips

  • Disable antivirus on your PC temporarily – some AVs interfere with ADB drivers.
  • Use a USB 2.0 port on your PC – USB 3.0 can cause connection drops.
  • Keep the stock firmware files handy – you’ll need them if you want to unroot or fix a bootloop.
  • After rooting, install a custom recovery like TWRP (if available for your model) to make backups – but that’s a separate process.
  • If you ever need to unroot, you can flash the original boot image back via fastboot.

Troubleshooting

  • Device not recognized by ADB: Install the correct USB drivers for LG (search for “LG USB driversâ€� on LG’s official site). Try a different cable or port. Restart the ADB server with adb kill-server then adb start-server.
  • Bootloader unlock fails: Check that your device is actually eligible – LG’s unlock page will tell you. Also, ensure you have the latest fastboot and that you’ve enabled OEM unlocking in Developer Options.
  • Phone stuck in bootloop after flashing: This usually means the patched boot image is incompatible. Reboot to fastboot and flash the original boot image to restore. If that doesn’t work, you may need to flash the full stock firmware using LGUP.
  • Magisk app shows “N/Aâ€� after boot: The patched image wasn’t flashed correctly, or you’re using an old Magisk version. Re-download the latest Magisk, re-patch the boot image, and flash again.
  • Fastboot says “FAILED (remote: unknown command)â€�: Your device may not support the unlock command. Try fastboot oem unlock or fastboot flashing unlock depending on the model. If neither works, your bootloader is likely not unlockable.
  • Wi-Fi or Bluetooth stops working after root: This can happen if you flashed the wrong boot image. Restore the original boot image and redo the patching process with the correct stock image.

Frequently Asked Questions

  1. Does rooting the LG G4 Beat void the warranty? Yes, unlocking the bootloader and rooting voids the manufacturer’s warranty. Some carriers may still repair hardware issues, but software support is off.
  2. Will I lose my data when rooting? The bootloader unlock process wipes all data. After that, flashing the patched boot image does not wipe data, but it’s always safe to back up before any modification.
  3. Can I unroot after rooting? Yes, you can restore the original boot image via fastboot. If you also want to relock the bootloader, you can run fastboot oem lock (this wipes data again).
  4. Is it safe to use banking apps after rooting? Many banking apps detect root and refuse to run. You can use Magisk’s MagiskHide (or DenyList) to hide root from specific apps, but it’s not guaranteed to work.
  5. What if my LG G4 Beat is from a carrier like AT&T or Verizon? Carrier-locked devices often have bootloaders that cannot be unlocked. This guide will not work for those models. Check LG’s unlock page for your specific variant.
  6. Do I need a custom recovery like TWRP? No, this method only requires fastboot. A custom recovery is optional and can be flashed later if you want to install custom ROMs or make full backups.

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