]This Guide is only for GALAXY Y. This guide may work on some other devices. But if u r a newbie & if u don't own galaxy y DO NOT TRY THIS. Developer no longer own this device. So supporting newbies will not be continued.
Some tweaks , Themes , etc. need custom roms for installation because stock rom is odexed rom. So when stock rom deodexed you can use the tweaks , themes, etc. without flashing custom rom.
Most of custom roms are deodexed. Deodexed Roms can customize easily.
Read this who don't know about deodexed roms
Your Device Must be rooted for this process
You need android-sdk installed in your computer
You need to install latest busybox in your phone
xUltimate ( Download )
(important notice:- versions of xUltimate working may vary from one device to another. If you get errors from latest version, Try older versions)(latest xUltimate version is 2.4)
1.Connect your phone to computer.(Make sure you have select USB debugging in Settings>Applications>Development)
2.Extract xUltimate v2.3.3.zip and Launch Main.exe
3.If everything goes well xUltimate should recognize the phone and make a connection.You now should see a list of options.
4.Select option (1) pull /system/app. Wait until it complete.
5.Select option (2)pull /system/framework. Wait until it complete.
6.Then select option (3) Deodex /system/app. Wait until it complete.
[If encounter any error. Find out which .odex file is it. Then remove .odex file from folder origi_app in xUltimate folder]
7.Then select option (4)Deodex /system/framework. Wait until it complete.
8.Now Exit from xUltimate.
9.Put the phone in USB mass storage.
10.Go to xUltimate folder and copy "done_frame", and "done_app", and move them to the root of the sdcard.
11.Now get out from USB storage mode.
12.Open Command prompt.
( Goto folder where android sdk installed. Then goto platform-tools folder in it. Right click on free space in folder while pressing shift key.Select open command prompt here.
Now enter commands. )
13.Enter following codes.
(if you are using adb shell in su for the first time, keep phone screen on. After entering "su" code, super user request prompt in phone. Press allow )
adb shell su stop mount -o rw,remount /system/ /system/ cp /sdcard/done_app/* /system/app/ rm /system/app/*.odex cp /sdcard/done_frame/* /system/framework/ rm /system/framework/*.odex mount -o ro,remount /system/ /system/ reboot
credits to 4real*leb and Xeudoxus.
Don't Forget to Press Thanks