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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 LineageOS 15.1 OFFICIAL build.
Follow the links to get LineageOS 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 projectDISCLAIMER:
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.
REQUIRED LINKS AND FILES FOR OFFICIAL LineageOS 15.1 for HTC One A9 OREO 8.1 ROM DOWNLOAD:
- TWRP recovery for HTC One A9– Here is the TWRP update guide for HTC One A9. This recovery guide requires an unlock bootloader on HTC One A9.
- HTC One A9 LineageOS 15.1 Download link OFFICIAL build
- GApps for LineageOS 15.1 ROM
Root binary is NOT inbuilt in the OFFICIAL LineageOS 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 LineageOS 15.1 Rooting guideIf 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 LineageOS 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 LineageOS 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 LineageOS
– 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 LineageOS 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 LineageOS 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 LineageOS 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 LineageOS
– 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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