Important to note:
This tutorial is supported only with the Xiaomi Redmi 3s devices, codenamed with (LAND). Dont use this rom to another Xiaomi devices.
Make sure your Xiaomi Redmi 3s/Prime bootloader unlocked and have a TWRP Recovery installed. Read this guide to unlock bootloader xiaomi devices and this guide to install twrp recovery.
In order to install correctly this Marshmallow ROM you will need to wipe the data and/or factory reset your Xiaomi Redmi 3s/Prime. This step is included in the tutorial and it means that you will have to backup all your files using cloud storage services (mi cloud is good but using google drive much easier to restore), a SD Card or a PC. Using Titanium Backup is not recomended.
Create a nandroid back-up is also needed to anticipate if something bad happened during intstalation, or after instalation. You can restore to the earlier rom you used with nandroid backup you'll created.
Make sure that your smartphone’s battery charge level is over 20% or more, at least 60% is good enough. This will prevent it from powering down while you’re updating your Redmi 3s/Prime (land) to Marshmallow 6.0 using Lineage OS ROM If you done with all prequisites mentioned above, you can now forward to these steps by step guide.
1. Download ROM LineageOS 13 Xiaomi Redmi 3s
This release is only one version availabe; Un-Official LOS 13 is not maintained officially, but the developers built this rom based on same source code. Surely you can leave this page if you don't interested. Offcourse it will (probably have some issues after you install this build. If you insist after knowing this, download LOS 13 below, and don't blame us if something bad happened:
ROM OS Version: 6.0.x Marshmallow
Based On: LineageOS
2. Download Marshmallow Lineage OS GappsLineage OS 13 ROM is commonly based on Android 7.1.1 with 64 bit architecture, you can download these smallest compatibel GApps package with arm64 and sdk 7.1, provided by opengapps.org
File above is the smallest package, Aroma variant is the largest package with instalation wizard powered by Aroma Installer. More option go ahead to this suitable gapps Marshmallow package according your data plan.
3. Installing Marshmallow 6.0 Lineage OS on Xiaomi Redmi 3sHow to Install Marshmallow 6.0 Lineage OS on Xiaomi Redmi 3s/Prime (land) and adding GApps into Lineage OS:
Transfer both the Custom ROM and Marshmallow Lineage OS Gapps packages to the internal storage of your device.
Power off your device and boot into TWRP Recovery mode.
Once, you are into TWRP Recovery main menu, you need to make a hard reset. From the TWRP main menu tap on the wipe button and select Advanced Wipe. Then select all Dalvik cache, System, Data and Cache options.
Flash the custom ROM now. Choose the Install option from the recovery menu and choose the ROM zip from the file manager.
Reboot into revovery after completed, don't reboot into system yet.
Now, flash the Marshmallow Lineage OS Gapps package that you’ve downloaded before in the same way as you did with the custom ROM
Reboot the device into system and complete the initial setup.
Enjoy Android Marshmallow with Lineage 13 for Xiaomi Redmi 3s/Prime
Now you know where you can download Marshmallow 6.0 Lineage OS Official ROM for Redmi 3s (land) and how to install it on your smartphone.
You can also read how to enable native root access in Lineage OS. In those guide also explain to you how to replace native root with SuperSU without flashing zip.
Please leave your review in the comment section. Or if you have problem, don't hesitate to write a question in the comment section of LineageOS 13 for Xiaomi Redmi 3s/Prime Android Marshmallow 6.0