[Guide] Reodexing your SGS3 - Galaxy S III Q&A, Help & Troubleshooting

This guide is for reodexing your SGS3, such as UltimaROM, Omega, Foxhound, CodecROM, _null, Sotmax and others (I'm just listing off the top off my head).
It's not terribly tough and 100% of the credit belongs to rujelus22 for his amazing work on his AIO tool. This guide is just for deodexing/odexing, but you can use that tool for other things.
Firstly, why would you want to odex your ROM?
Well, this will help you understand more:
http://www.xda-developers.com/xda-tv-2/pro-tip-number-5-why-you-should-odex-and-deodex-xda-tv/
It's very useful and saves on battery life and makes the phone slightly more responsive.
Consider:
When you have downloaded and installed your chosen ROM you should odex it back up for the speed and agility odexing affords you. However you should ONLY do this after you are happy with your setup. I.E., install any mods you wanted and then Odex your phone.
If you want to add mods later, say, perhaps, your developer releases a new mod, or patch for your ROM you will NEED to Deodex the ROM before applying a patch or new mod. This is important. Please do not pester your dev about an error if you have not done this.
In my opinion, it can take maybe 30 minutes to Deodex, apply your mods/patch, and then Reodex using this tool, but the benefits are worth it.
You should also perform these actions AFTER a successful boot. You should flash the ROM. Boot. skip the setup pages and get to the homepage, then do this odexing.
How to do it:
Firstly, head off over to Rujelus22's AIO script thread and download it:
http://forum.xda-developers.com/showthread.php?t=1955745
Don't forget to click "Thanks"
Make sure you also download these the Android-SDK and the Java Development kit. The SDK is necessary for the Deodexing, I believe, in case you want to do that later:
http://forum.xda-developers.com/showpost.php?p=33268059&postcount=2
After that, extract the AIO script somewhere useful where you can find it again and run the "Start_AIO.bat" file. This will set up some folders in the directory you extracted to and then open the start page
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
After this make sure your phone is plugged into you computer and that USB Debugging mode is on in the Developers Options. ALSO, you must have an "Insecure Kernel" such as any custom kernel (Siyah, Perseus, Boeffla) or Wanam/zoot1's repacked stock kernel.
If you do not have an Insecure Kernel head off to Chainfire's adbd Insecure thread: http://forum.xda-developers.com/showthread.php?t=1687590
You might considering buying it on Google Play, if you like, but there is a free XDA version.
After you are plugged in, on USB debugging and have an Insecure Kernel, load the AIO script and choose option "22" which reads "Odex the ROM on your phone". You will be given the opportunity to take a nandroid backup at this point.
Sit back and let it do it's thing. It will take about 10 minutes, and it will seem to hang on the clean up bit. Fear not, because it IS doing something. Your phone will automatically reboot when it has finished.
You're done! Once you have done that little bit of setting up... in future it is as easy as opening the script, hitting 22 and sitting back.
Notes/FAQ:
Sometimes it can constantly loop around the first page as though it is doing a first run. To solve this, go into "AIO_FOLDER/tools/Settings/" and create a new .txt file called "firstrun". Make the contents of the file 1. Just "1" and nothing else.
Sometimes it can say that you don't have remount access and the Odex option will not show. Similar to the point above, go into "AIO_FOLDER/tools/Settings/" and make a .txt file called "remount" and place a single 1 in the folder.
Deodexing can take some time. Be patient.

---

Can any ROM be Odexed this way, such as CyanogenMod, for example?

---

I think so, yes. As long as the script can find the bootclasspath!

---

Kryten2k35 said:
I think so, yes. As long as the script can find the bootclasspath!
Click to expand...
Click to collapse
Thanks. I'll give it a try. I've always stuck with Odexed ROMs for all the reasons that Adam discussed in the video, so I'd be very pleased if I could Odex CM. Best of both worlds.

---

When i select 99 and 4 and 2 the script closes...:/
Also all odexing options are greyed out...i followed the instructions just fine,any help?

---

nfsmw_gr said:
When i select 99 and 4 and 2 the script closes...:/
Also all odexing options are greyed out...i followed the instructions just fine,any help?
Click to expand...
Click to collapse
This might help
http://forum.xda-developers.com/showpost.php?p=39378436&postcount=164
Make that edit to the "script.bat"

---

Kryten2k35 said:
This might help
http://forum.xda-developers.com/showpost.php?p=39378436&postcount=164
Make that edit to the "script.bat"
Click to expand...
Click to collapse
idk speed of the rom is same as deodexed will see about battery life:silly:

---

Kryten2k35 said:
This might help
http://forum.xda-developers.com/showpost.php?p=39378436&postcount=164
Make that edit to the "script.bat"
Click to expand...
Click to collapse
Woot woot!
Working like a charm now,thanks!
Maybe you should add this to the op?
I still can't select 99->4->2 but now odexing options are available!

---

Nice tut, I'm a big fan of reodexing since I first tried it, :thumbup:

---

I'm kind of new to this things and have to questions;
1.- First specifically to UltimaROM, does it have to be odex ?
2.- When it says I should do it after I have the Rom as I want it, it does not interfere with installing apps right?

---

Tuckycv said:
I'm kind of new to this things and have to questions;
1.- First specifically to UltimaROM, does it have to be odex ?
2.- When it says I should do it after I have the Rom as I want it, it does not interfere with installing apps right?
Click to expand...
Click to collapse
You do not have to odex if you don't want to, but I personally recommend it.
And installing apps from the Play Store will be 100% fine on an odex'd ROM.
However, ANY mod that changes a system app is likely to interfer. In this case you can deodex, then flash the mod, then reodex (optional).
This is mainly for those that flash, then don't mod. However modding is not impossible and it's worth the extra 10 minutes to do this.

---

I have installed everything according to the tutorial. But in the cmd window..its written Your Kernel does not support this feature [adb remount]
I am using the perseus Kernel. I insecured the kernel using "adb insecure" from chainfire. I think it was not needed but i did it when nothing was working. It still does not work
any help?
P.S. debugging is enabled
EDIT : SOLVED -------> USING THIS http://forum.xda-developers.com/showpost.php?p=39378436&postcount=164

---

Dang it, I feel like an idiot. I cannot figure out how to setup the variable path from the instructions. Do I need to make a new one in both system and user, or do I edit one that is already there?
What do I name them?

---

I tried to reodex UltimaRom v11 and had to modify the script too (set remountavlible=yes) in order to see option 22 so you might want to write that in the OP Kryten, it could prevent the question from being asked over and over
Maybe it is specific to some roms ?

---

I do everything as I should,but after I press any button after it says "Press any key to continue" at the screen with the snake head (Or whatever that is),it will give me an empty command prompt.No menu,no nothing.Any ideas guys?It's really starting to get on my nerves...

---

How to know if my phone was odexed?
After running script it says:
The phone rebooted, but there is no *odex files in System/App. Strange..

---

Hey there! Just want to confirm something.. It is said in the OP that we have to "deodex" to flash a new mod or patch. Is a ROM upgrade considered a patch? Do I have to deodex first to flash a new ROM version? Or it is safe to just flash the new ROM version while I'm still odexed and just re-odex after upgrading the ROM?
Thanks!

---

I have an odex folder on my internal SD card. Folder size is almost 500mb. Can I delete this folder.
Sent from my GT-I9300 using Tapatalk 2

---

I can't seem to make it work.. It is always saying it can't find the Android SDK (look at the attached photo), but I've already installed everything. Java and Android SDK. What could be the problem? Both Java and SDK are installed in C:/

---

flipward said:
I can't seem to make it work.. It is always saying it can't find the Android SDK (look at the attached photo), but I've already installed everything. Java and Android SDK. What could be the problem? Both Java and SDK are installed in C:/
Click to expand...
Click to collapse
http://forum.xda-developers.com/showpost.php?p=39378436&postcount=164