Devices
LG
LG G4 (H815)

LG G4 (H815)

Overview

codename
h815
🥩
Flavor (?):Pro
Android:11
First released:2024-12-20
Firmware:manual
Encryption (?):FDE
Relockable:no
VerifiedBoot/AVB (?):false
Verified & tested by:The AXP.OS team
State:stable

Installation guide

You want to switch between flavors or coming from DivestOS?

Please read this first: All about AXP.OS flavors If you miss a flavor you can request it here.

Known issues

Boot modes

Each device has its own method to access special boot modes.
See: h815 (@LineageOS wiki)

Firmware

AXP.OS for the LG G4 (H815) does not include firmware.
You must ensure correct firmware manually to avoid unexpected problems.

Follow the firmware guide.
If missing, check the h815 firmware guide and match the Android version.

Install / Upgrade

Pre-requirements

AXP.OS for the LG G4 is a special release as it is one of the rare devices where we still support FDE because all attempts to get FBE working (backporting FBE to the msm8992 kernel) failed.

So to get the most out of your device we enforce the usage of F2FS which requires that you follow these simple steps first (AXP.OS won’t even boot otherwise):

Note: The following process will WIPE all your user data, photos, everything. .. and no, there is no other option. So you better have a backup and you better have tested the restore of that backup actually works.

  1. flash latest “321 or later” <– ! TWRP build first!
    • download from here
    • fastboot flash recovery <TWRP.....img>
  2. boot TWRP
  3. Select Wipe
  4. Swipe to Factory Reset (this will also clear any encryption metadata ever stored)
  5. Press the HOME button
  6. Select Wipe
  7. Select Advanced Wipe
  8. Select only Cache (not Dalvik/ART cache)
  9. Select Repair or Change File System
  10. Select Change File System
  11. Select F2FS and swipe to change it
  12. Press the HOME button
  13. Select Wipe
  14. Select Format data
  15. Type yes
  16. Verify the output says it was formatted with f2fs!
  17. Press the HOME button
  18. continue with the regular Install (non A/B) guide:

Install (non A/B)

Setup AXP.OS

Follow Setup

XDA thread

See here

Debugging

DEVICE-BOOT-DEBUG-PATH: /mnt/vendor/persist
See Logs

Download

All downloads have a GPG signed sha512sum file which should be used to verify the download & file integrity.
Details how to make use out of it can be found here.

💡 The hashsum of new builds are also send in the sfX Automation channel. This gives you a second and independent option for comparison if the download server is compromised.

Flavor
(what's this?)		OS zipRecovery imageRelease key
(what's this?)
Pro 🥩
(click)
(click)
(right click, save-as)
(click)
(click)
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