Install LineageOS on wt88047

Important Information:

Xiaomi has released the Android 5.1.1 update to only Redmi 2 variants with 2GB of ram. As not all Redmi 2 variants received the update, these variants are on the latest compatible firmware.

Terminology

firmware : Controls the modem and baseband of a device

What you need to know

If you are installing from LP (5.x) stock MIUI, nothing needs to be done.
If you are installing from KK (4.4) stock MIUI, you will have to update your firmware.
To update your firmware:
- You will first need to find out the model of your Redmi 2. Open Settings > Phone info, your model no. should be displayed under the Model section.
  - Devices with model numbers 2014811, 2014812, 2014817 2014818, 2014819, and 2014821 should download the firmware labeled wt88047
  - Devices with model numbers 2014813, 2014112 should download the firmware labeled wt86047
- Aftewards, download the latest compatible firmware here.
- In the later steps after flashing the LineageOS .zip package, select the firmware .zip to update to the latest compatible firmware.

Basic requirements

Important: Please read through the instructions at least once completely before actually following them to avoid any problems because you missed something!

Make sure your computer has working adb and fastboot. Setup instructions can be found here.
Enable USB debugging on your device.

Installing a custom recovery using `fastboot`

Download a custom recovery - you can download TWRP. Simply download the latest recovery file, named something like twrp-x.x.x-x-wt88047.img.
Connect your device to your PC via USB.
On the computer, open a command prompt (on Windows) or terminal (on Linux or macOS) window, and type:
```
adb reboot bootloader
```
You can also boot into fastboot mode via a key combination:
- With the device powered off, hold Volume Down + Power.
Once the device is in fastboot mode, verify your PC finds it by typing:
```
fastboot devices
```
Tip: If you see no permissions fastboot while on Linux or macOS, try running fastboot as root.
Flash recovery onto your device:
```
fastboot flash recovery twrp-x.x.x-x-wt88047.img
```
Tip: The file may not be named identically to what stands in this command, so adjust accordingly.
Now reboot into recovery to verify the installation:
- With the device powered off, hold Volume Up + Volume Down + Power.

Installing LineageOS from recovery

Build a LineageOS install package.
- Optionally, download 3rd party application packages such as Google Apps (use the arm architecture)
If you aren’t already in recovery, reboot into recovery:
- With the device powered off, hold Volume Up + Volume Down + Power.
(Optional, but recommended): Select the Backup button to create a backup. Make sure to create the backup in the external sdcard or copy it into your computer, since the internal storage will be formatted.
Select Wipe, then Format Data and continue with the formatting process. This will remove encryption and also delete all files stored in the internal storage.
Select Wipe and then Advanced Wipe.
Select Cache and System partitions to be wiped and then Swipe to Wipe.
Place the LineageOS .zip package, as well as any other .zip packages on the root of /sdcard:
- Using adb: adb push filename.zip /sdcard/
- You can use any method you are comfortable with. adb is universal across all devices, and works both in Android and recovery mode, providing USB debugging is enabled.
Go back to return to main menu, then select Install.
Navigate to /sdcard, and select the LineageOS .zip package.
Follow the on-screen prompts to install the package.
(Optional): Install any additional packages using the same method.

Note: If you want any Google Apps on your device, you must follow this step before the first boot into Android!
(Optional): Root the device by installing the LineageOS su add-on (use the arm package) or using any other method you prefer.
Once installation has finished, return to the main menu, select Reboot, and then System.

Get assistance

If you have any questions or get stuck on any of the steps, feel free to ask on our subreddit or in #LineageOS on freenode.