How to update LeEco Le S3 EUI 5.8.021S Full Stock Rom

This is a safe and easy guide to install New Marshmallow update LeEco Le S3 EUI 5.8.021S Rom instructions with image guide. USA Le S3 phone.

Hi, this is bug fix stable Rom for LeEco Le S3 . This is a New update LeEco Le S3 EUI 5.8.021S Stable Stock Rom and here is an easy and safe tutorial for install or New update LeEco Le S3 EUI 5.8.021S Stable Stock Rom.

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LeEco Le S3 has Brilliant 5.5 inch screen with 1080 x 1920 pixels resolution. This phone comes with superb build quality and innovative design. LeEco Le S3 has two outstanding features Qualcomm MSM8976 Snapdragon 652 and Adreno 510 GPU with EUI 5.8, it’s make this phone very smoother and faster.

Must Read: 5 tips for secure Android Phone LeTv LeEco Le S3

Details of EUI 5.8.021S of LeEco Le S3:

You can fix some issue by this update LeEco Le S3 EUI 5.8.021S Stable Stock Rom. This is an Android 6.0 Marshmallow update, it is a marshmallow update with some fixes.

Launcher / App Drawer
– Added standard App Drawer feature to access all installed applications
– Please note: your current App Dock will change slightly due to the App Drawer icon, but you can easily reposition the icons as you wish. The Live application icon now functions as a regular app icon

Key Guard
– Changed haptic feedback for fingerprint sensor so the device only vibrates once if your fingerprint is not recognized or if other incidental contact occurs

– Improved camera performance in low-light environments

– Settings: changed “Mass MMS” wording to “Group messaging”
– Settings: changed default configuration to send a single MMS to all recipients

GMS Apps & Android
– Updated GMS package to 6.0_r11 for increased stability & security
– Updated Android security patch
LeEco Video Apps (Le & Live)
– Le App: added parental control function, ability to comment on videos, and improvements to streaming quality
– Live App: improved app’s user interface and optimized streaming performance

General Enhancements & Bug Fixes
– Improved stability of Gallery and Calendar applications
– Improved Messaging app text selection user experience
– Made slight modifications to power on/off animations
– Fixed screen flicker associated with rapid pressing of power button
– Fixed bug associated with hotspot password setting character limit​

Download Rom and tools of LeEco Le S3:

File Name Download link
LeEco Le S3 EUI 5.8.021S Stable Stock Rom Download
LeEco Le S3 USB Driver Download

1. Take a backup of your phone Click here.
2. Your phone battery should charge 80% minimum.
3. Read all steps then do it careful.

Must Read: How to control apps from accessing the Internet on LeEco Le S3

How to install or New update LeEco Le S3 EUI 5.8.021S Stable Stock Rom:

Step 1: Download LeEco Le S3 EUI 5.8.021S file and rename this zip file as “” like to

Step 2: Connect your phone to PC via USB Type-C and copy the zip file into your Phone Internal Storage. Do not copy the zip file into any folder!

Step 3: Go to “System update App” from the system tool, tap on the setting icon, it is a 3 dots icon on top right corner (see in this image) and tap on the “Local update” tab. Now you can see a message on your phone Screen, ” update package found, your phone will restart, are you sure to continue?”. See in this image.

Install or New update LeEco Le S3 EUI 5.8.021S Stable Stock Rom process instructions

Step 4: Now Click on continue, your phone is going to reboot in recovery mode and Rom flashing process start. Don’t interrupt this process, it might to take 4-6 minutes for your phone to first boot on EUI 5.8.021S.

Must Read: How to Enable and Disable System UI Tuner in Android 6 Marshmallow

Tips for LeEco Le S3

After New update LeEco Le S3 EUI 5.8.021S Stable Stock Rom, you can root your phone because root allows you to use a maximum of your phone without any restrictions. After root you will install custom apps, Rom and custom setting in your phone. But first read Root Advantage and Disadvantage by this article then follow this guide to root LeEco Le S3.

I hope you like this New update Le S3 EUI 5.8.021S Stable Stock Rom installation guide from which you will be able to easily install or New update Le S3 EUI 5.8.021S Stable Stock Rom without any extra efforts. If feel any problem in this guide then please use comment box. Thanks to all.


    1. Sorry I do not know Spanish, I have done it with Google translate.

      Intente actualizar esta rom en su teléfono, el proceso de actualización no borrará sus datos personales.

  1. If my device’s EUI is still on 5.8.018S, can I just flash this update via TWRP instead?

      1. EUI did not come pre-installed with the “System Update” (I checked it multiple times). This forced to flash the ROM via TWRP. While the update was successful, I bricked my device in the process. It no longer boots (normal, Fastboot, or TWRP). Furthermore, when it is charged, it only gives off a red LED light which corroborates to the idea that it’s indeed bricked.

        Any idea on how I’d be able to unbrick my device?

        1. Power off your phone, press volume up and power button at the same time for some seconds to diplay stock recovery update and clear data options. There you can select to update your device with the downloaded file.

  2. Does this fixes the issue with the default stock OS’s random freezing and crashing?

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