[Galaxy S 4 General] Exodusnick:
LineageOS is a free, community built, aftermarket firmware distribution of Android, which is designed to increase performance and reliability over stock Android for your device. All the source code for LineageOS is available in the LineageOS Github repo. If you would like to contribute to LineageOS, please visit our Gerrit Code Review.

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* [B][U]Your warranty is now void.[/U][/B]
* We are not responsible for bricked devices, dead SD cards,
* thermonuclear war, or your getting fired because the alarm app failed. Please
* do some research if you have any concerns about features included in this ROM
* before flashing it! YOU are choosing to make these modifications, and if
* you point the finger at us for messing up your device, we will laugh at you.

FREQUENTLY ASKED QUESTIONS

(Please read them BEFORE posting anything in the thread!)​

Q: Whenever I try flashing any lineage-15.1 build, I get the following error in TWRP: Updater process ended with ERROR: 7

A: This error appears whenever you try to flash an Oreo-based rom within a version of TWRP older than 3.2. Simply flash version 3.2 or higher, reboot back into recovery, and flash the rom zip again.

Q: Why is my phone warmer/hotter and the battery noticeably drained after flashing a build?

A: The wipe process that is a part of the installation procedure deletes some important configuration data, ie. BATTERYSTATS, which keep track of the battery's power level. These data ensure a balanced power management profile for all the hardware components of your phone. This is normal and nothing to worry about at all. Your battery drain will return to normal within a day or two.

If, however, you notice increased battery drain over a few days, check your signal. Android automatically re-directs battery power to the antennas to compensate for a weak signal from the tower to which your phone is connected at that time. If your signal is strong, check the following:

1) You missed one of the Wipe steps in the flashing procedure.

2) You are running an old bootloader or modem. Flash the most recent one listed for your variant either under the links below. Note: Use the "AP" button in Odin to flash ripee's combined BL_CP tar files.

3) How old is your battery? Official replacement Samsung batteries typically last around 1 year if you recharge them regularly, ie. once a day. Since the Galaxy S4 Value Edition over 4 years old, it is normal for your original battery to start failing, but official Samsung batteries should not cost more than USD 20 nowadays.

4) If all else fails, start over! Go through the entire installation procedure, including flashing a stock Marshmallow build, and going from there. Do NOT skip any steps this time!

Q: Will the jfvelte ever receive official builds from LineageOS?

A: In short, no. The reason is that, in order to get a modern version of Android working properly on an ageing device, some recent commits needed to have been reverted and some legacy commits needed to have been re-introduced into the current source branch. These include a fix for something as fundamental as video recording with both the AOSP and 3rd party camera apps.

Q: How often will new builds be released?

A: At least once per month: as soon as possible after each new Android security patch level is merged and whenever a new feature is added or a bug is fixed.

If the first Oreo build you are flashing is 0220 or later, please clean flash it, as some users have reported problems with dirty flashing builds from 0220 or later over top of builds older than 0220.​

ROMs

Exodusnick

Build files downloaded with the OTA updater can be found in /data/lineageos.updater. New builds are released weekly.

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YouTube Video

Magisk

recommended Gapps Pico or Nano ARM 8.1

If your currently installed ROM is any version of either: stock Samsung TouchWiz, LineageOS, CyanogenMod, or any other custom ROM, you must perform a clean install of LineageOS 15.1!​

How to flash LineageOS and Open GApps​

FULL WIPE (with external microsd card)

1. Move any files you want to keep to your External MicroSD Card – ! Or you will lose them !

2. Download your LineageOS Rom and GApps Package,

3. Move your LineageOS Rom and GApps Package to the external MicroSD storage,

4. Boot into Recovery Mode (Hold volume up, Home, and Power button for 1 second after the vibration),

5. Wipe > Advanced Wipe > Select On (enable tick) for Dalvik / Art Cache, System, Data, Internal Storage, Cache,

6. Swipe to Wipe at Bottom of Screen,

7. Back to Main start screen,

8. Wipe > Format Data,

9. Type 'Yes' and press blue checkmark at the bottom-right corner,

10. Go Back to Main Start Screen to Install Rom and GApps,

11. After you have finished installing the Rom and GApps > Wipe Cache/Dalvik > Swipe to Wipe,

12. Reboot System! Enjoy!

FULL WIPE (without external microsd card with NO Home PC access)

1. Move any files you want to keep to a safe folder - ! Or you will lose them !

2. Download your LineageOS Rom and GApps Package,

3. Move your LineageOS Rom and GApps Package to the internal storage,

4. Boot into Recovery Mode (Hold volume up, Home, and Power button for 1 second after the vibration),

5. Wipe > Advanced Wipe > Select On (enable tick) for Dalvik / Art Cache, System, Data, Cache,

6. Swipe to Wipe at Bottom of Screen,

7. Back to Main start screen,

8. Wipe > Format Data,

9. Type 'Yes' and press blue checkmark at the bottom-right corner

10. Go Back to Main Start Screen to Install Rom and GApps,

11. After you have finished installing the Rom and GApps > Wipe Cache/Dalvik > Swipe to Wipe,

12. Reboot System! Enjoy!

FULL WIPE (without external microsd card with Home PC access)

1. Move any files you want to keep to your Home PC - ! Or you will lose them !

2. Download your LineageOS Rom and GApps Package,

3. Move your LineageOS Rom and GApps Package to the internal storage,

4. Boot into Recovery Mode (Hold volume up, Home, and Power button for 1 second after the vibrate),

5. Wipe > Advanced Wipe > Select On (enable tick) for Dalvik / Art Cache, System, Data, Internal Storage, Cache,

6. Swipe to Wipe at Bottom of Screen,

7. Back to Main start screen,

8. Wipe > Format Data,

9. Type 'Yes' and press blue checkmark at the bottom-right corner,

10. Go Back to Main Start Screen to Install Rom and GApps,

11. After you have finished installing the Rom and GApps > Wipe Cache/Dalvik > Swipe to Wipe,

12. Reboot System! Enjoy!

13. Once first boot is completed you can safely move your files back onto your Internal Storage.

Typically if you do not do a Clean Install then you are not allowed to report errors or problems. If you Dirty Install and you do have problems then you will be asked to Wipe All and Clean Install and see if the problems still exist. This is a DAILY changing rom and any bug that you found was not working on the previous day's build may be fixed with todays daily build. On a side note, the code implemented to fix that bug could potentially break something that worked on that previous build. So reporting problems on a day old build that you dirty flashed over whichever build of whichever rom you had flashed previously will not be accepted as a true error.

Problems known to happen after a Dirty Installation​

1. A muddled up mess of a system. You are taking a rom and installing a newer rom with changes over the top of your old rom. Between these two periods of time during which you used your phone and created data, changed system options, and used apps. This is absolutely increasing the risk of causing problems somewhere in the system/data partitions. Some people have luck with Dirty Flashing. However, it's always hit-and-miss because of what we mentioned above about bug fixes breaking previously working functions. Dirty flashing doesn't only create problems if the source code of the system data and the system settings of the new build are significantly different from those of your previous build. That's not to say that Clean Installing won't ever create problems, but only bugs present on a Cleanly Installed rom are relevant for development purposes.

* Clean Install: Fully wiping everything and installing the rom onto a fully clean system/data partition of the phone.

* Dirty Install: Installing the rom and GApps over top of the older rom to save time and not have to reinstall all the user apps and tweaking system and app settings that usually take a lot of time to set up as you like.

Bugs

Bluetooth calls

- You tell us!

Changelog

All major features and bug fixes are discussed by Exodusnick and ripee in this thread, whenever they are implemented. All builds include the latest upstream Changes for all devices from LineageOS.

Credits

- sombree and every other open source developer and tester who contributes directly or indirectly to the LineageOS community in the development of and in providing feedback for the jfvelte.

Join us on Telegram[/URL], courtesy of Exodusnick!​

Sources

XDA:DevDB Information

LineageOS 15.1, ROM for the Samsung Galaxy S4

Contributors

Exodusnick

ROM OS Version: 8.x Oreo

ROM Kernel: Linux 3.x

ROM Firmware Required: Stock KitKat for your variant.

Version Information

Status: Stable

Current Stable Version: 8.1.0

Stable Release Date: 2019-05-17

Created 2018-12-29

Last Updated 2019-06-19