Device configuration for Xiaomi Redmi 4(prada).

To do: -Use latest kernel from latest Stable ROM (Stable ROM released later than Dev ROM)

Basic	Spec Sheet
CPU	Octa-core 1.4 GHz ARM® Cortex™ A53
CHIPSET	Qualcomm MSM8937 Snapdragon 430
GPU	Adreno 505
Memory	2GB RAM
Shipped Android Version	6.0.1
Storage	16GB, 9-11GB usable
Battery	4100 mAh
Display	720 x 1280 pixels, 5.0"
Rear Camera	13 MP, 4128 x 3096 pixels, autofocus
Front Camera	5.0 MP

Add to .repo/local_manifests/prada.xml:

<?xml version="1.0" encoding="UTF-8"?>
<manifest>
	<project path="device/xiaomi/prada" name="android_device_xiaomi_prada" remote="Kizoky" revision="master" />
</manifest>

Then run repo sync to download the git.

OR Download android_device_xiaomi_prada as ZIP, and extract ALL files to ../device/xiaomi/prada

To build:

. build/envsetup.sh
lunch omni_prada-eng

make -j4 recoveryimage

Building takes approx. 10-11 minutes (It depends on your CPU, and how many cores you use to build)

In case of building errors: Remove ../frameworks/native-caf Edit external/lz4/Android.mk, and replace liblz4 and liblz4-static with this:

include $(CLEAR_VARS)
LOCAL_MODULE := liblz4-static
LOCAL_SRC_FILES := $(liblz4_src_files)
LOCAL_MODULE_TAGS := optional
include $(BUILD_STATIC_LIBRARY)

include $(CLEAR_VARS)
LOCAL_MODULE := liblz4
LOCAL_SRC_FILES := $(liblz4_src_files)
LOCAL_MODULE_TAGS := optional
include $(BUILD_STATIC_LIBRARY)

Kernel sources for Prada is still not released by Xiaomi.

I:Actual block device: '/dev/block/mmcblk0p59', current file system: 'ext4'
get_crypt_ftr_info crypto key location: '/dev/block/bootdevice/by-name/bk1'
Cannot read real block device footer
Could not mount /data and unable to find crypto footer.