Install /e/ on a Samsung Galaxy S4 (SCH-I545) - “jfltevzw”
- If required take a backup of all important data from your phone on an external storage device before proceeding.
- Do not take a backup on the same device as some of these actions will format the device and delete the backup.
- Ensure your phone is charged more than 50%
- Check that
adbis 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
Downloads for the jfltevzw
To understand the difference between /e/OS builds check this guide
I545VRUAMDKotherwise the instructions found in this page will not work. The current bootloader version can be checked by running the command
getprop ro.bootloaderin 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.
- Click the large lambda symbol to download the apk.
- Install and run the apk to achieve root.
Installing a custom recovery using
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 shellfrom 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
Power. Release all buttons and press
Poweragain 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
On /e/ Recovery Main Screen:
Format data / Factory resetoption
- Next screen will display a warning that this action cannot be undone
Format datato proceed or
Cancelif you want to go back
If you selected
Format data..the format process will completeTip: 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 screenTip: Use the volume up key to choose the arrow at the top to go back to main screen
In /e/ Recovery main screen:
Apply Updateand 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
enterkey 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 keyto select the
back arrowon 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
To find some troubleshooting tips… click here
- Getting a
Total xFer ':' 0.01xmessage - Try to upload the /e/OS to internal storage and retry to install
adb ':' sideload connection failed ':' insufficient permissions for deviceerror - Try to execute the commands
adb start-serverand retry
adb shell twrp install /sdcard/</e/ zip package>raise non-existent directory error - Try to check solution here
- Getting an
insufficient permissionserror - Try the solution given here
- When running "adb devices" in bash a device is shown as "unauthorized" - Try the solution given here
- 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
wipescreen in advanced menu select
swipe to wipe
/cache/recovery/xxx -> no such file or directoryerror while flashing a ROM - On PC run
adb shellin the console now create a folder called recovery for e.g. here the devicecode name is violet "violet :/cache# mkdir recovery"
- Trying to troubleshoot mobile connectivity issues - Read this guide