[Optimus L3, L5, L7 General] ArjunrambZ:
FIRST OF ALL IAM JUST SHARING THE POST,IAM NOT THE CREATOR

THIS IS THE SIMPLEST AND FASTEST WAY TO PORT ROMS!!!

This is the method which I use in porting Roms-

Things Needed- Winrar, Notepad++

This is For Same Resolution Mobiles and You can use this Method to port roms From armv6 to armv7 devices but I dont know about the method used to port roms from armv7 to armv6 devices..

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What is base Rom:

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The ROM which is Developed For your Mobile..

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What is Port Rom:

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The Rom Which you want to port to your Device.

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STEP1;

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Take any clean CM9, AOSP, CM7, CM10 ROM which is running on your device as Base ROM.

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STEP2:

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Extract it Using Winrar.

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STEP3:

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Take the ROM you want to port. This Port ROM. Extract it also using Winrar.

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STEP4:

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Delete app, Framework, Fonts and Media folder in System Folder of Base ROM.

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STEP5:

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Now copy app, Framework, Fonts and Media folder in System Folder from Port rom to base rom system folder.

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STEP6:

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Now open etc folder in both the ROMs folder.

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STEP7:

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In etc folder of base ROM open permissions folder and copy all the permissions files in Port rom to your base ROM folder except platform and handheld_hardware .And Then open init.d Folder in Base ROM and Delete Every thing except banner and then copy all the files inside init.d folder of port ROM to Base ROM.

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STEP8:

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Now open buid.prop file using Notepad++ and make changes to these of Base Rom as you wish.

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ro.build.id=

ro.build.display.id=

ro.build.date=

ro.modversion=

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STEP9:

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In build.prop file change these to same as Port Rom build.prop values.

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ro.config.ringtone=

ro.config.notification_sound=

ro.config.alarm_alert=

Also Copy anything you Find Extra in ADDITIONAL BUILD PROPERTIES related to theme..

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STEP10:

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COPY THE set_perm Lines in META-INF/com/google/android/updater-script From Port to Base ROM After Deleting set_perm lines in Base ROM's Updater-Script.

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STEP11:

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If You find any extra file or folder in system folder of PORT rom than copy them to your base rom system folder.

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STEP12:

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Last Step to ZIP THE FOLDERS IN ONE..

SELECT META-INF, system, boot.img(if it is having), data(if it is having).

Right Click and Select Add to Archive..

Select Zip..

Type the Name.

Click OK..

FOR MIUI:

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Copy telocation.db and yellowpage.db From /system/etc folder to yours..

Copy content-types.properties file From /system/lib to yours..

Copy invoke-as from miui4 rom to /system/xbin and give it permissions on updater-script

set_perm(0, 0, 06755, "/system/xbin/invoke-as");

Note:It is needed for backup & themes app to work

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Copy liblbesec.so from miui 4 to /system/lib and give permission on updater-script

set_perm(0, 0, 0755, "/system/lib/liblbesec.so");

It is needed for superuser app from miui to work

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Change values Some of the Values in build.prop of your ROM:

ro.build.id=MIUI

ro.build.display.id=MIUI

ro.build.version.incremental=2.x.x (version number)

ro.config.ringtone=MI.ogg

ro.config.notification_sound=FadeIn.ogg

ro.config.alarm_alert=GoodMorning.ogg

ro.config.sms_received_sound=FadeIn.ogg

ro.config.sms_delivered_sound=MessageComplete.ogg

FOR ParanoidAndroid And PAC:

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Copy paranoid folder inside system/etc to yours..

Go to META-INF/com/google/android/Updater-Script of your base ROM and open it with Notepad++

Copy this line:

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set_perm(1000, 1000, 0644, "/system/etc/paranoid/properties.conf");

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Specially For PA:

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Now Open Build.prop in /system with Notepad++

Copy these lines in Additional Properties of Build.prop:

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#Depends on Resolution Of your device can be pa_hdpi/pa_mdpi/pa_xhdpi. Change it according to your device.

ro.pa.family=pa_mdpi

#Depend on pa version. Replace x.xx with the version of PA you are porting.

ro.pa.version=x.xx

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Specially For PAC Rom:

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Now Open Build.prop in /system with Notepad++

Copy these lines in Additional Properties of Build.prop:

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#Replace the x.x.x with your PAC Rom version

ro.pac.version=x.x.x

#Customize these lines according to your wish.

ro.pacrom.version=mesona_PAC_jb-alpha-v19.0.0

ro.modversion=mesona_PAC_jb-alpha-v19.0.0

#Depends on Resolution Of your device can be pa_hdpi/pa_mdpi/pa_xhdpi. Change it according to your device.

ro.pa.family=pa_mdpi

#Depend on pa version. Replace x.xx with the version of PA you are porting.

ro.pa.version=x.xx

#Modify this line according to your AOKP version

ro.aokp.version=mesona_jb-Milestone-1

#Modify it according to your base ROM's build.prop

ro.cm.version=xxxxxxxxxxxx

Replace any line in Your build.prop which appear twice mainly ro.cm.version and ro.modversion

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For HTC Devices:

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To fix network auto select-

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Decompile framework-res.apk

Go to \framework-res\res\values\bools.xml and change change <bool name="skip_restoring_network_selection">true</bool> to false

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To Fix Graphichal issues:

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Decompile framework.jar

Change these files with your base

smali\smali\android\os

Environment

SystemProperties

smali\smali\android\view

HardwareCanvas

HardwareRenderer$Gl20Renderer

HardwareRenderer$GlRenderer

HardwareRenderer

IF YOU ARE HAVING BOOTLOOP THEN COPY THESE LIB FILES TO BASE ROM FROM PORT ROM:

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libandroid_runtime.so

libandroid_servers.so

libmedia_jni.so

IF YOUR BASE ROM HAS ISSUES LIKE CAMERA ISSUE THAN YOUR PORTED ROM TOO WILL HAVE ISSUES.

NOW ZIP YOUR ROM AND POST IT BUT DON'T FORGET TO GIVE CREDITS TO THE DEVELOPER OF PORT ROM..

THANKS TO rishabh.raj37 FOR THE AWESOM POST

LINK FOR ORGINAL FORUM http://xdaforums.com/showthread.php?t=1908008

:o:o