Install /e/ on a Samsung Galaxy S4 (SCH-I545) - “jfltevzw” (beta)

Tip: Please read through the instructions at least once before actually following them, so as to avoid any problems later.

Warning: Downgrading Smartphones already on Android Q or LineageOS 17.x to Pie or other OS can cause instability or at worst brick some devices

Caution: Flash your device only if you know what you are doing and are OK taking the associated risk. All builds are provided as best effort, without any guarantee. The /e/ project and its project members deny any and all responsibility about the consequences of using /e/ software and or /e/ services.

Requirements

Take a backup of all important data on your phone before proceeding.
Ensure your phone is charged more than 50%
Check that adb and fastboot are enabled on your PC. If not you can find the setup instructions here
Download all the files and images mentioned in the download section below before starting the installation
Make sure you have a working data cable to connect your device to the PC. There are cables which are only for charging and do not transfer data.
Enable USB debugging on your device. You can find the instructions here

Caution: Before following these instructions please ensure that the device is on the latest Android Stock firmware same as the version of the /e/OS you are planning to install. This can be done by checking for OTA updates available in the Updater. If available run them before installing /e/OS

Downloads for the jfltevzw

/e/ Recovery for dev build
/e/OS build : R dev

To understand the difference between /e/OS builds check this guide

Caution: Your device must be on bootloader version: I545VRUAMDK otherwise the instructions found in this page will not work. The current bootloader version can be checked by running the command getprop ro.bootloader in a terminal app or an adb shell from a command prompt (on Windows) or terminal (on Linux or macOS) window.

Rooting your device

Important: The device must be rooted before proceeding any further.

Download TowelRoot from here.
1. Click the large lambda symbol to download the apk.
2. Install and run the apk to achieve root.

Installing a custom recovery using `dd`

Warning: Installing a custom recovery will erase all data on your device! Before proceeding, ensure the data you would like to retain is backed up to your PC and/or a online drive.

Place the recovery image file on the root of /sdcard (USB debugging have to be enabled in developer options) :
```
 adb push recoveryfilename.img /sdcard/recoveryfilename.img
```
Now, open an adb shell from a command prompt (on Windows) or terminal (on Linux or macOS) window. In that shell, type the following commands:
```
 su
 dd if=/sdcard/recoveryfilename.img of=/dev/block/platform/msm_sdcc.1/by-name/recovery
```
Manually reboot into recovery With the device powered off, hold Volume Down + Power. Release all buttons and press Power again as soon as the LG logo appears.
Accept the factory reset prompt using the hardware buttons. If you have done everything correctly, this will not actually reset your device but instead will install the custom recovery.

Steps to install /e/OS from recovery

Tip: Use the volume keys to navigate and power key to select

Tip: If your PC is unable to detect your device in adb ..in the /e/ recovery main screen tap Advanced » Enable adb

On /e/ Recovery Main Screen:

Select Factory reset
Select Format data / Factory reset option
Next screen will display a warning that this action cannot be undone
Select Format data to proceed or Cancel if you want to go back
If you selected Format data ..the format process will complete
Tip: You will see text in small font on the lower left side of the screen mentioning format progress
The small font text would be similar to this
```
 Wiping data
 Formatting/data
 Formatting/cache
 Data wipe complete
```
Display will now return to the Factory Reset screen
Tip: Use the volume up key to choose the arrow at the top to go back to main screen
In /e/ Recovery main screen:
Select Apply Update and in next screen Apply update from adb
In the next screen, the device is now in sideload mode
Note at this point the Cancel option is highlighted that does not mean you have canceled the action. The device is in adb sideload mode.
On your PC type begin adb sideload. Type the below command in a console
adb sideload downloaded_file_name.zip
Replace downloaded_file_name.zip with the name of the /e/ OS file you downloaded in the previous section
Press enter key on the keyboard to start the sideloading The screen will show the progress percentage…This might pause at 47%
Give it some time
The PC console will now display Total xfer: 1.00x
The phone screen will now display some text with a message similar to
Script succeeded result was [1.000000]
This means that the install was successful
Use the volume key to select the back arrow on the top left of the phone screen
Go back to the main screen and select Reboot system now
The reboot process may take 5 - 10 minutes

Success: Congratulations !! Your phone should now be booting into /e/OS !!

To find some troubleshooting tips… click here

adb

Getting a Total xFer ':' 0.01x message - Try to upload the /e/OS to internal storage and retry to install
adb ':' sideload connection failed ':' insufficient permissions for device error - Try to execute the commands adb kill-server and adb start-server and retry
Running adb shell twrp install /sdcard/</e/ zip package> raise non-existent directory error - Try to check solution here
Getting an insufficient permissions error - Try the solution given here
When running "adb devices" in bash a device is shown as "unauthorized" - Try the solution given here

TWRP

Errors while running TWRP version 3.4.x.x or above - Try downloading and using a previous TWRP version.. below 3.4.x.x
In TWRP if this error shows up failed to mount /preload - Try in TWRP wipe screen in advanced menu select preload and swipe to wipe
/cache/recovery/xxx -> no such file or directory error while flashing a ROM - On PC run adb shell in the console now create a folder called recovery for e.g. here the devicecode name is violet "violet :/cache# mkdir recovery"

Connectivity

Trying to troubleshoot mobile connectivity issues - Read this guide

Tip: To suggest changes to this install guide documentation, please visit the Galaxy S4 (SCH-I545) specific topic on our community forum. To report issues in the build please refer this guide

This documentation “Install /e/ on a Samsung Galaxy S4 (SCH-I545) - “jfltevzw”” is a derivative of “install LineageOS on jfltevzw” by The LineageOS Project, used under CC BY.