[GUIDE] [MEDIATEK] How To Port 5.x.x Lollipop Based ROMs for MTK Kitkat Devices

[GUIDE] [MEDIATEK] How To Port 5.x.x Lollipop Based ROMs for MTK Kitkat Devices

How To Port Lollipop Based ROMs for MTK Kitkat Devices

Only For Mediatek SOCs

This guide applies to same chipsets:

Example:

MT6577 to MT6577

MT6589 to MT6589

MT6572 to MT6572

MT6582 to MT6582

And works also for:

MT6589 to MT6577

MT6582 to MT6572

Before starting this tutorial, please make a backup of your ROM

I am not responsible for any damage to your device, this guide is for expert users.

You Need:

- Winrar, 7-Zip or similar

- Notepad++

- Tool for unpack/repack mtk boot.imgs 

- Kitkat Stock ROM

- Lollipop ROM for port

- Brain 

Step 1.- Unzip the port lollipop ROM and also stock ROM. Rename the lollipop ROM to port ROM

Step 2.- Delete this files or folders in port ROM and replace with your files from Stock ROM:

Code:

-system/etc/firmware

-system/lib/egl

-system/usr/keylayout/Generic.kl

Step 3.- Open system/lib/hw folder in Stock Rom, then select & copy all files and paste to system/lib/hw folder in port ROM replacing files.

Note: if you porting a ROM from a different SOC, delete this files before in port rom: audio.primary.mt65xx.so, gralloc.mt65xx.so, hwcomposer.mt65xx.so, ligths.mt65xx.so, sensors.mt65xx.so

Step 4.- Open system/vendor in Stock ROM, copy folders and subfolders and paste to system/vendor in port ROM replacing files

Step 5.-.Rename your stock kitkat boot.img to stockboot.img and the port boot.img to portboot.img. Unpack the boot.imgs, in ramdisk folder from decompiled portboot.img open the fstab (ramdisk/fstab or fstab.mt65xx) file with Notepad++ and edit (compare with the fstab.mt65xx of your decompiled stockboot.img) and save. Use the kernel 3.4.67(zImage) from your decompiled stockboot.img and the ramdisk folder from decompiled portboot.img, recompile it and replace in port rom folder.

Step 6.- Open the updater-script in META-INF from port rom, open it with Netepad++. Edit the format &mount points(compare with your updater-script from stock META-INF)

Example: 

Code:

format("ext4", "EMMC", "/dev/block/mmcblk0p7", "0", "/system");

format("ext4", "EMMC", "/dev/block/mmcblk0p5", "0", "/data");

mount("ext4", "EMMC", "/dev/block/mmcblk0p7", "/system");

Step 7.- Zip the port ROM and flash it in recovery mode and enjoy.

Fixing Bugs

No audio in loudspeaker?

Replace libaudio.primary.default.so from stock ROM to Port

Storage Bug

Decompile the framework-res.apk, go to res/xm/storage_list.xml and edit it like the storage_list.xml from framework-res.apk of your Kitkat ROM, also edit the fstab.mt65xx in boot.img(compare with the fstab.mt65xx of your kitkat boot.img)

Bluetooth

Replace libbluetooth_mtk.so and libbluetoothem_mtk.so from stock ROM to port.

Sensors

Replace libsensors.so file from stock ROM to port.

Wifi

Replace libwifi-service.so from stock ROM to port

Camera

all files that start with libcam....so

Credit :

ZonaRMR XDA

You all.

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