Xiaomi Redmi 3S and Redmi 3S Prime both the devices are currently running on Android Marshmallow based MIUI 8.
There is no official word when the Nougat update will be released for these devices.
Let’s try a Stable Android Nougat 7.1.1 ROM [Lineage OS] on your Redmi 3S/Prime until you get the official update.
- TWRP installed Xiaomi Redmi 3S/Prime.
- Do not try this on another device.
- Bootloader unlocked device.
- Enabled USB debugging. To do this Go to Settings->Developer options
- At least 70% charged phone.
Note: Take full back-up before you proceed. Flashing custom ROM may void your warranty. Xiaomi Ninja is not responsible for any kind of damage.
Here is the step by step guideline to install Lineage OS 14.1 for Redmi 3S/Prime:
Step 1: Firstly, you need to download the ROM. Click here to download the ROM.
Step 2: Download suitable GAPPS for your device. Click here to download GAPPS.
Step 3: Put the downloaded file into device Internal storage [Not inside any folder].
Step 4: Now boot the device into TWRP recovery mode. To do this press volume down and power button at the same time.
Step 5: Perform a factory reset. To do this go to Wipe and swipe the blue button to perform a factory reset.
The whole process is nicely described in the following video:
Step 6: Return to recovery main menu window and click on “Install”. Now navigate to the downloaded ROM file and choose it. Then press “Add more Zip” and choose the GAPPS package. Then swipe the blue button to start flashing. Be careful that, first you have to choose ROM Zip then GAPPS package.
The whole process can take 5-10 minutes. Wait for the completion and Reboot the device when flashing is finished.
Now you have successfully installed Android Nougat 7.1.1 base Lineage OS 14.1 on Xiaomi Redmi 3S/Prime. Enjoy!