LineageOS 15.1 for HTC One A9 – Android 8.1 Oreo Download

  

LineageOS Forums HTC Device Forums HTC One A9 (GSM US) – hiaeul LineageOS 15.1 for HTC One A9 – Android 8.1 Oreo Download

This topic contains 4 replies, has 3 voices, and was last updated by  Saiful Matubber 1 month, 3 weeks ago.

 
 
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  • #36936

    shibaa987
    Keymaster

    LineageOS 15.1 for HTC One A9 (hiaeul) is now available to download on the OFFICIAL LineageOS website. This is a step by step guide that explains how to install this HTC One A9 Lineage OS 15.1 OFFICIAL build.

    Follow the links to get Lineage OS 16 and Android Pie ROM builds.

    This OFFICIAL LineageOS 15.1 for HTC One A9 is maintained by intervigil.

    Starting from LineageOS 15.1, LineageOS team has made stringent device support norms, which ensures that almost every important piece of hardware present on a phone MUST be in a working state on an OFFICIAL LineageOS 15.1 build. Which clearly means that users will enjoy a stock like upgrade experience on OFFICIAL LineageOS 15.1 updates.

    Well, making a standard guideline to support LineageOS 15.1 for a specific device will undoubtedly increase the reliability on LineageOS custom Android ROM and subsequent ROMs derived from LineageOS such as: Resurrection Remix OS, crDroid ROM etc.

    DONATION TO PROJECT/DEVELOPER(s):

    If you like this ROM then do consider for a small contribution to intervigil and LineageOS project:
    Donate to intervigil
    Donate to LineageOS project

    DISCLAIMER:
    THIS IS AN INITIAL HTC One A9 LINEAGEOS 15.1 OFFICIAL BUILD WHICH MAY HAVE MINOR BUGS. HAVE A BACKUP BEFORE FLASHING THIS AND TRY AT YOUR OWN RISK.
    Installing a custom ROM may require an unlocked bootloader on HTC One A9, which may VOID your warranty and may delete all your data. Before proceeding further you may consider backup all data on the phone. You are the only person making changes to your phone and I cannot be held responsible for the mistakes done by you.

     

     

    LineageOS 15.1 for HTC One A9 - Android 8.1 Oreo

    REQUIRED LINKS AND FILES FOR OFFICIAL Lineage OS 15.1 for HTC One A9 OREO 8.1 ROM DOWNLOAD:

    Root binary is NOT inbuilt in the OFFICIAL Lineage OS 15.1 ROM, so you need a separate SuperSu package or LineageOS su binary to install to gain ROOT access on the HTC One A9 LineageOS 15.1 ROM build.
    – Here is Lineage OS 15.1 Rooting guide

    If there is no in-built ROOT or it does not work for some reason then you can try SuperSU rooting guide to enable ROOT access.

    HOW TO UPDATE/INSTALL OFFICIAL Lineage OS 15.1 ON HTC One A9:

    Follow this if you are about to install LineageOS 15.1 on HTC One A9 for the first time, or coming from UNOFFICIAL LineageOS 15.1 Oreo ROM or any other custom ROM of any Android version:

    NOTE:
    If you are on an OFFICIAL LineageOS 14.1 ROM then follow the LineageOS 15.1 Upgrade guide in the next section to upgrade to the OFFICIAL LineageOS 15.1 on HTC One A9.

     

    Points to NOTE:
    – Try to avoid restoring apps backup using Titanium Backup. It may break things up.
    – Don’t restore system data using Titanium Backup! It will definitely break the current installation.
    – It is also discouraged to Restoring Apps + Data using Titanium Backup.

    • Boot into Recovery.

      Make sure to have a Custom recovery like CWM or TWRP or any other custom recovery on your phone.
      If you don’t have then download the recovery for HTC One A9 from above link and follow the Custom Recovery Installation Guide (it’s a generic guide which will work for TWRP as well as CWM recovery or any other recovery)
      provided it is in .img file extension.

    • Wipe data or do a factory reset, wipe Cache partition, wipe Dalvik Cache/ART cache and Format the System partition.
      – Here is a guide explaining how to wipe data using TWRP recovery.

      This will delete all your data on your phone. You may consider complete backup of your phone data or take a NANDROID backup of the current ROM
      How to backup all data on your Android Device
      how to take NANDROID backup using TWRP recovery

    • Download and Copy the LineageOS 15.1 Oreo GApps, SuperSU or any other ROOT package and the HTC One A9 LineageOS 15.1 ROM ZIP file to the phone or SD card memory.
    • First flash the Lineage OS 15.1 ROM ZIP file from device. DON’T REBOOT YET. Then flash the GApps and/or supersu zip from your device memory WITHOUT rebooting.
      – Here is a post explaining how to install Lineage OS
      – Here is a post explaining how to flash GApps using TWRP recovery.
      – Here is a post explaining How to Enable ROOT for LineageOS 15.1 ROM
    • Reboot and Enjoy Android Oreo on the HTC One A9 LineageOS 15.1.

    Upgrading from earlier version of OFFICIAL LineageOS 14.1 or Lineage OS 15.1 for HTC One A9 (hiaeul):

    If you are on an OFFICIAL LineageOS 14.1 (yes, I mean the Android Nougat based OFFICIAL LineageOS 14.1) then you don’t need to wipe the data and you can upgrade to the OFFICIAL LineageOS 15.1 on HTC One A9 just by cleaning the system partition.

    • Copy the latest HTC One A9 Lineage OS 15.1 ZIP file, Oreo 8.1 GApps and/or supersu ROOT package to the phone or use the updater app to download the LineageOS 15.1 on HTC One A9.

      NOTE:
      – If you are on an OFFICIAL LineageOS 14.1 then you will be allowed to download the latest OFFICIAL LineageOS 15.1 using the updater app but you won’t be allowed to upgrade to LineageOS 15.1 on top of LineageOS 14.1
      – So, you need to export the downloaded LineageOS 15.1 ROM build file to the SD card or phone memory from the updater app:
      You can export the downloaded package to the sdcard/phone memory from the Updater app by long-pressing the downloaded file and then selecting “Export” on the top menu

    • Boot into Recovery.

      – Make sure you have a latest custom Recovery that should be able to flash the LineageOS 15.1 on HTC One A9.

    • Format or wipe the system partition from the custom recovery menu.
    • First install the OFFICIAL Lineage OS 15.1 ROM ZIP file from device. DON’T REBOOT YET. Then flash the GApps and/or supersu zip from your device memory WITHOUT rebooting.
      – Here is a post explaining how to install Lineage OS
      – Here is a post explaining how to flash GApps using TWRP recovery.
      – Here is a post explaining How to Enable ROOT on LineageOS 15.1 ROM
    • Reboot and Enjoy the LineageOS 15.1 on HTC One A9.

     

    If you have found any BUG on this LineageOS 15.1 for HTC One A9 then you can raise a jira ticket on LineageOS website.

    Stay tuned or Subscribe to the HTC One A9 (hiaeul) forum For other Android Oreo 8.1 ROMs, LineageOS 15.1 ROM, other ROMs and all other device specific topics.

     

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    #36947

    shibaa987
    Keymaster

    The first official LineageOS 15.1 NIGHTLY build for HTC One A9 will trigger on next Monday.
    Corresponding NIGTHLY builds will arrive on Monday of every week.

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    #47711

    Reinhard Kaune
    Participant

    Hello!
    I really like this page and your instruction how to do what I am on to.
    The biggest problem seems to be that the lineageOS downloadpage is empty or no longer existing.
    Do you have any idea where to download the installation files otherwise?
    Thx
    Reinhard

    #48089

    shibaa987
    Keymaster

    @reinhard_kaune
    Looks like the Lineage OS 15.1 build for HTC One A9 has been removed from LineageOS build roster itself.

    LineaegeOS team has strict norms to support since LineageOS 15.1, so it is possible that the maintainer of Lineage OS 15.1 HTC One A9 is unable to follow. This might have lead to the removal of the build from LineageOS build roster.

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    #55981

    Saiful Matubber
    Participant

    Can you please provide a link of lnos 15.1 please sir htc a9

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