[GUIDE] How to port Custom Rom for MTK6572 JellyBean

Porting Guide for Jellybean MTK6572

Note: it must be same MTK6572 and same Jellybean

What do you need:

• Stock rom
• Port rom (must be MTK6572 android 4.2.2)
• 7zip
• notepad++
• apktool
• knowledge about porting
• Brain

Step 1: Stock and Port rom

• Create a 2 folder name it as stock and port
• Extract your stock rom place in stock folder same as port rom place in port folder

Step 2: bin Folder copy and replace the following files

• dnsmasq
• vold
• sdcard

if you got a bug in sdcard mounting delete and replace whole bin folder
or if you got a bootloop try to copy and replace all files in bin folder

Step 3: etc folder delete and copy the following folder and files

• firmware
• dhcpcd
• fmr
• permissions
• security
• wide-dhcpv6
• wifi
• apns-conf.xml
• vold.fstab
• vold.fstab.nand
• vold.fstab.fat.nand

Step 4: lib folder delete and copy the following folder

• hw
• modules
• soundfx

Step 5: copy and replace the following files in lib folder

• libaudio.a2dp.default.so
• libaudio.primary.default.so
• libaudiocompensationfilter.so
• libaudiocustparam.so
• libaudioeffect_jni.so
• libaudioflinger.so
• libaudio-resampler.so
• libaudiosetting.so
• libaudioutils.so
• liba3m.so
• libacdk.so
• libaudioflinger.so
• libc.so
• libcam.camadapter.so
• libcam.campipe.so
• libcam.camshot.so
• libcam.client.so
• libcam.paramsmgr.so
• libcam.utils.so
• libcam_camera_exif.so
• libcamalgo.so
• libcamdrv.so
• libcamera_client.so
• libcamera_metadata.so
• libcameracustom.so
• libcameraservice.so
• libexif.so
• libfeatureio.so
• libfrsdk.so
• libft.so
• libgoggles_clientvision.so
• libgui.so
• libimageio.so
• libja3m.so
• libcustom_nvram.so
• libsensorservice.so
• libvcodecdrv.so
• libdpframework.so
• libinput.so
• libsync.so

Step 6: usr folder

• usr - delete and replace

Step 7: Open build.prop search line or add

• ro.sf.lcd_density=160 (for 3.5 inch) 240 (for 4.0 inch)
• ro.sf.hwrotation=0 (for fix rotation)

Step 7: META-INF folder
You can use the META-INF of Port rom
Open META-INF / com/google / android / updater-script and edit this line
Your mount point must be mmcblk0p4 for system like this:

• format("ext4", "EMMC", "/dev/block/mmcblk0p4");
• mount("ext4", "EMMC", "/dev/block/mmcblk0p4", "/system");

Your mount point must be mmcblk0p6 for data like this:

• mount("ext4", "EMMC", "/dev/block/mmcblk0p6", "/data");

Step 8: boot and logo

• Replace your stock Boot.img and logo.bin to port rom

Common bug: sdcard not mounting or reverse mount
How to fix:
1. decompile framework-res.apk
2. on res/xml folder find storage_list.xml and edit in notepad++
3. there is sdcard0 at sdcard1 just interchange the 0 change it as 1 and the 1 change it as 0
4. Recompile
if you got a bootloop prepare your original framework-res.apk from Port rom