Hi all, I'm new to the site, I have a galaxy s3 gt i9300 it's running on 4.1.2, the phone runs alot of background apps so the phone is slow the battery is awful, apps I open close themselves as soon as I open them, text messaging is the same, I have had people saying it could be down to the software but im not sure phone's really aren't my thing, my question is could rooting my phone fix the problem?
Any help would be good
Tony
diponio2 said:
Hi all, I'm new to the site, I have a galaxy s3 gt i9300 it's running on 4.1.2, the phone runs alot of background apps so the phone is slow the battery is awful, apps I open close themselves as soon as I open them, text messaging is the same, I have had people saying it could be down to the software but im not sure phone's really aren't my thing, my question is could rooting my phone fix the problem?
Any help would be good
Tony
Click to expand...
Click to collapse
rooting a phone wont do anything by itself. rooting just allows to modify system files, lets u delete pre-installed apps and lots of other stuffs. after rooting your device u can also use some apps to optimize your device.
suyash1629 said:
rooting a phone wont do anything by itself. rooting just allows to modify system files, lets u delete pre-installed apps and lots of other stuffs. after rooting your device u can also use some apps to optimize your device.
Click to expand...
Click to collapse
My idea was to root it to delete thing's and run less background apps, I'm just not sure if rooting installs a different os or uses the same jelly bean
diponio2 said:
My idea was to root it to delete thing's and run less background apps, I'm just not sure if it will rooting installs a different osor uses the same
Click to expand...
Click to collapse
Suggest you read the faqs and guides first all the information is posted including what root is or not in regard to an OS .
http://forum.xda-developers.com/showthread.php?t=2344125
read the first two posts .
JJEgan said:
Suggest you read the faqs and guides first all the information is posted including what root is or not in regard to an OS .
http://forum.xda-developers.com/showthread.php?t=2344125
read the first two posts .
Click to expand...
Click to collapse
So the os stays the same, is there a way to roll back from the update as my phone only started messing about after the update, my phone is now out of warranty so Samsung will do nothing but surely a update that has made my phone almost unusable is down yo them to fix
diponio2 said:
So the os stays the same, is there a way to roll back from the update as my phone only started messing about after the update, my phone is now out of warranty so Samsung will do nothing but surely a update that has made my phone almost unusable is down yo them to fix
Click to expand...
Click to collapse
If you have a genuine Samsung update from Kies or OTA that has caused problems then it is covered by warranty .
But as 4.1.2 did not cause problems they may just factory reset the phone .
Samsung's limited warranty is 24 months .
JJEgan said:
If you have a genuine Samsung update from Kies or OTA that has caused problems then it is covered by warranty .
But as 4.1.2 did not cause problems they may just factory reset the phone .
Samsung's limited warranty is 24 months .
Click to expand...
Click to collapse
It is a genuine update, I have reset to factory but with no help
diponio2 said:
It is a genuine update, I have reset to factory but with no help
Click to expand...
Click to collapse
Well ask Samsung service or you can read and understand the faqs and guides flash a stock rom root flash a custom rom and debloat. But you are going to have to read or you will brick your phone .
JJEgan said:
Well ask Samsung service or you can read and understand the faqs and guides flash a stock rom root flash a custom rom and debloat. But you are going to have to read or you will brick your phone .
Click to expand...
Click to collapse
I did email Samsung customer services who asked me to take the phone and proof of purchas (which I no longer have) to a service centre, problem is the nearest one is a 2 hour drive
You could root and run an app called "Greenify" to greenify the system processes. Alternatively, you could flash a different ROM that has no bloatware.
Is there a way I can reset my phone that will clear everything including the updates so it's like fresh out the box?
diponio2 said:
Is there a way I can reset my phone that will clear everything including the updates so it's like fresh out the box?
Click to expand...
Click to collapse
Read the FAQS and GUIDES
Return to stock for warranty post .
Related
well i dont know what happened, but i rooted my glaxy s3 via qbking77 method that he describes in these forums. however, when i try to move a picture or a video that is mine from my pc to my phone, i get a message saying---do you want to copy the file? file may be copied but you may not be able to view or play it on your device.
i dont know what happened, but oh well...i rebooted the phone, its in usb debugging and all that..
my files are good, all my personal photos so i dont know what the problem is...
appreciate any assistance and thanks in advance..
yes im a noob said:
well i dont know what happened, but i rooted my glaxy s3 via qbking77 method that he describes in these forums. however, when i try to move a picture or a video that is mine from my pc to my phone, i get a message saying---do you want to copy the file? file may be copied but you may not be able to view or play it on your device.
.
Click to expand...
Click to collapse
Are you saying there is no yes button or that it fails even after you click the yes button?
yes im a noob said:
well i dont know what happened, but i rooted my glaxy s3 via qbking77 method that he describes in these forums. however, when i try to move a picture or a video that is mine from my pc to my phone, i get a message saying---do you want to copy the file? file may be copied but you may not be able to view or play it on your device.
i dont know what happened, but oh well...i rebooted the phone, its in usb debugging and all that..
my files are good, all my personal photos so i dont know what the problem is...
appreciate any assistance and thanks in advance..
Click to expand...
Click to collapse
Just simply click yes, it should work or check the extension of the files. There are some picture extensions that the phones don't recognise.
qbking77 method
As their is no such method i believe on this forum .
But you could post a link to check for this root .
My big guess is that you are yet another in the wrong forum and do not have International I9300 phone .
If so firmware from here may brick your phone be warned .
Of course you may well have a I9300 but rooted with a method that is not for the phone .
So what phone have you and if its I9300 check the root method .
jje
csutikisx said:
Just simply click yes, it should work or check the extension of the files. There are some picture extensions that the phones don't recognise.
Click to expand...
Click to collapse
i do hit ok, and the files transfer, but when i go to the phone, nothings there and during the transfer i dont get a message on the
phone either like i used to when stuff transfered over, like it would say "transfer of such and such complete"...
it goes through the motions, but nothings on the phone
JJEgan said:
qbking77 method
As their is no such method i believe on this forum .
But you could post a link to check for this root .
My big guess is that you are yet another in the wrong forum and do not have International I9300 phone .
If so firmware from here may brick your phone be warned .
Of course you may well have a I9300 but rooted with a method that is not for the phone .
So what phone have you and if its I9300 check the root method .
jje
Click to expand...
Click to collapse
heres the youtube site i used to root, from the guy that uses mods and roms frm here--
http://www.youtube.com/watch?v=XoEVDgjTTdg&list=PL7011CD883D5201B8&index=12&feature=plpp_video
thats what i used to root
yes im a noob said:
heres the youtube site i used to root, from the guy that uses mods and roms frm here--
http://www.youtube.com/watch?v=XoEVDgjTTdg&list=PL7011CD883D5201B8&index=12&feature=plpp_video
thats what i used to root
Click to expand...
Click to collapse
It Says .
How to Root the Sprint / AT&T / T-Mobile Samsung Galaxy S III - Latest
Not a I9300 International SGS3 and therefore not covered by this forum for the I9300 .
That then begs the question of what phone do you have .
I9300 or some other phone ???
jje
Kangburra said:
Are you saying there is no yes button or that it fails even after you click the yes button?
Click to expand...
Click to collapse
yes i hit ok, but nothing happens...it goes through the file transfer method but nothings on the phone afterwards
JJEgan said:
It Says .
How to Root the Sprint / AT&T / T-Mobile Samsung Galaxy S III - Latest
Not a I9300 International SGS3 and therefore not covered by this forum for the I9300 .
That then begs the question of what phone do you have .
I9300 or some other phone ???
jje
Click to expand...
Click to collapse
i doubt its the i9300 and that video said nothing about it having to be a i9300.
my phone is sph-L710 if thats what you need, dont see anywhere where it says
i9300. i have always used his methods when rooting prior phones and this one,
never had an issue till now. the phone is rooted, i have the superuser
in apps, i have a custom rom and other customizations.
just cant transfer anything over....
yes im a noob said:
i doubt its the i9300 and that video said nothing about it having to be a i9300.
my phone is sph-L710 if thats what you need, dont see anywhere where it says
i9300. i have always used his methods when rooting prior phones and this one,
never had an issue till now. the phone is rooted, i have the superuser
in apps, i have a custom rom and other customizations.
just cant transfer anything over....
Click to expand...
Click to collapse
Lets make it simple you have L710 not a phone called the I9300.
This is not the Sprint L710 forum we know nothing about such a phone you would be better off in the Sprint L710 forum .
Does that make sense you are in the wrong forum as i keep saying .
jje
JJEgan said:
Lets make it simple you have L710 not a phone called the I9300.
This is not the Sprint L710 forum we know nothing about such a phone you would be better off in the Sprint L710 forum .
Does that make sense you are in the wrong forum as i keep saying .
jje
Click to expand...
Click to collapse
As JJ said you are in wrong forum..we will not be able to help you as all the guides,tools and everything else given here is useless for your phone and will possible turn your phone into a very beautiful door stopper..
Hello,
Aint sure if this question is already answered, I searched but didnt find it immeaditly, so i thought it was better to make a topic, So i could also ask a few questions more,
So i have a S3 international for a while now,
And i was thinking to leave the stock rom alone, But rooting, Doing clockwork recovery and a new kernel on it, I am think to get Perseus.
So the question is, if i do this, will all my apps be gone from my Phone and will it be cleaned up?
Also i wanted to ask if i do this, and theres a update from Samsung, How do i update it? Just click on it? will anything be erases/bricked?
Also i seen that the Toolkit (for root and recovery etc) is for 4.1.2, but i recently had a update XEMC2, but the kernel name is still the same, Is it safe to use this toolkit?
Thanks for reading this post,
Best regards,
DrLuigi.
Dr.Luigi said:
Hello,
Aint sure if this question is already answered, I searched but didnt find it immeaditly, so i thought it was better to make a topic, So i could also ask a few questions more,
So i have a S3 international for a while now,
And i was thinking to leave the stock rom alone, But rooting, Doing clockwork recovery and a new kernel on it, I am think to get Perseus.
So the question is, if i do this, will all my apps be gone from my Phone
NO
and will it be cleaned up
NO
Also i wanted to ask if i do this, and theres a update from Samsung, How do i update it?
Via KIES only and root again OTA will fail .
jje
Click to expand...
Click to collapse
JJEgan said:
Dr.Luigi said:
Hello,
Aint sure if this question is already answered, I searched but didnt find it immeaditly, so i thought it was better to make a topic, So i could also ask a few questions more,
So i have a S3 international for a while now,
And i was thinking to leave the stock rom alone, But rooting, Doing clockwork recovery and a new kernel on it, I am think to get Perseus.
So the question is, if i do this, will all my apps be gone from my Phone
NO
and will it be cleaned up
NO
Also i wanted to ask if i do this, and theres a update from Samsung, How do i update it?
Via KIES only and root again OTA will fail .
jje
Click to expand...
Click to collapse
So if i understand you,
It will be cleaned up, all apps will be gone?
And i will only be able to update with KIES, and not the one installed on the phone updater?
and it isnt safe to use the toolkit due it doesnt have EMC2?
i think it might be safe due wll, Its still the same kernel etc, I heard the only change they made was some bugs?
Click to expand...
Click to collapse
Dr.Luigi said:
JJEgan said:
So if i understand you,
It will be cleaned up, all apps will be gone?
>> NO they will not be gone .
And i will only be able to update with KIES, and not the one installed on the phone updater?
>>> Correct
and it isnt safe to use the toolkit due it doesnt have EMC2?
>>>No idea never used that tool .
i
Click to expand...
Click to collapse
Click to expand...
Click to collapse
JJEgan said:
Dr.Luigi said:
JJEgan said:
So if i understand you,
It will be cleaned up, all apps will be gone?
>> NO they will not be gone .
And i will only be able to update with KIES, and not the one installed on the phone updater?
>>> Correct
and it isnt safe to use the toolkit due it doesnt have EMC2?
>>>No idea never used that tool .
i
Click to expand...
Click to collapse
I never updated with KIES, is that like, getting your S3 in Download mode or something?
Due i have like no idea why the stock downloader wouldnt work,
When you update, Is the ROOT and kernel gone or? I think the kernel, due it probably will force the samsung one inside,
Thanks for your help mate ^^
Click to expand...
Click to collapse
Click to expand...
Click to collapse
Dr.Luigi said:
JJEgan said:
Dr.Luigi said:
I never updated with KIES, is that like, getting your S3 in Download mode or something?
Due i have like no idea why the stock downloader wouldnt work,
When you update, Is the ROOT and kernel gone or? I think the kernel, due it probably will force the samsung one inside,
Thanks for your help mate ^^
Click to expand...
Click to collapse
Mhm, If i reset my counter, With a jig/or triangle away,
Will i be able to update my phone then? with the software updater?
Click to expand...
Click to collapse
Click to expand...
Click to collapse
jig doesn't affect the counter
Well i am starting to think to wait till our final update, probably andriod Keylime,
And then ROOT and kernel it,
Since i have like no idea how you should update it, I only hear you should do it with KIES , other says it doesnt work with kies etc etc..
I would like to, but all the confosion
Btw do all kernels and andriod versions support the triangle away? or example Persues kernel cant?
Dr.Luigi said:
Well i am starting to think to wait till our final update, probably andriod Keylime,
And then ROOT and kernel it,
Since i have like no idea how you should update it, I only hear you should do it with KIES , other says it doesnt work with kies etc etc..
I would like to, but all the confosion
Btw do all kernels and andriod versions support the triangle away? or example Persues kernel cant?
Click to expand...
Click to collapse
Android KeyLimePie isn't ready to come
Triangle Away works only for some firmwares!
Sent from my GT-I9100
sadekmefti said:
Android KeyLimePie isn't ready to come
Triangle Away works only for some firmwares!
Sent from my GT-I9100
Click to expand...
Click to collapse
ye i know, but wait like a half year or whatever till it is
So we have our last real update, So i dont have to think about that anymore
Anyhow ^^
Dr.Luigi said:
ye i know, but wait like a half year or whatever till it is
Time scale unknown and its probable for SGS3 not 100%.
So we have our last real update, So i dont have to think about that anymore
You can always read the multiple stickied faqs guides and videos .
jje
Click to expand...
Click to collapse
JJEgan said:
Dr.Luigi said:
ye i know, but wait like a half year or whatever till it is
Time scale unknown and its probable for SGS3 not 100%.
So we have our last real update, So i dont have to think about that anymore
You can always read the multiple stickied faqs guides and videos .
jje
Click to expand...
Click to collapse
Well probably we will still get Keylime after Jellyban 4.2.1, Since well, Samsung would be crazy if they would let down the Note 2 and S3 users,
Wich are like millions.
It would be actualy good for there name if they satisfy there customers, and get them a even better name when talking about updating there devices,
Well thats my opinion atleast.
I dont think they would let 40 (it was 40 million right? ) million users down on updates.
Click to expand...
Click to collapse
hi my friends i have a questions about samsung knox
I am worried about this app so i have a lot of questions
What is knox ?
Can i root the phone like s3 4.1.2 ?
Can i modify and change rom to any rom ?
What will happen if i donot flash my country rom knox will not work ?
Can i delete or disable the program
I have s3 and i want to know alot about knox and 4.3 coming very soon and thank you :angel:
It is not an app, it is a whole security suite for enterprise use.
You can root as usual, but it might void your warranty and you cannot reset it.
However, if you go straight to custom ROMs (the classic ones, like omega or wanam) the developers will usually knock off Knox for you, so you don't have to worry.
Knox is only available in certain regions as far as the rumors suggest.
You cannot disable the program properly if you flash a ROM with Knox not removed by prior modding.
Sent from my GT-I9300 using Tapatalk
Thanks my friend
ballsofsteel said:
It is not an app, it is a whole security suite for enterprise use.
You can root as usual, but it might void your warranty and you cannot reset it.
However, if you go straight to custom ROMs (the classic ones, like omega or wanam) the developers will usually knock off Knox for you, so you don't have to worry.
Knox is only available in certain regions as far as the rumors suggest.
You cannot disable the program properly if you flash a ROM with Knox not removed by prior modding.
Sent from my GT-I9300 using Tapatalk
Click to expand...
Click to collapse
THANKS MY FRIEND FOR YOUR FAST ANSWERS BUT I WANT TO KNOW
WHEN I ROOT MY PHONE KNOX STOP WORK OR ROOT WILL CAUSE PROBLEMS WITH KNOX ?
I LIKE CUSTOM ROMS BUT I PREFER THE STOCK ROM BECAUSE ITS STABLE MY QUESTION HERE WILL ROOT WORKS AND I CAN MODIFY THE STOCK ROM LIKE THEMES ?
IAM FROM EGYPT IF I DOWNLOADED OTHER COUNTRY ROM WILL KNOX WORKS OR NOT OR KNOX FORCES ME TO DOWNLOAD MY COUNTRY ROM
ABOUT WARRANTY I DO NOT CARE BECAUSE I BOUGHT THE PHONE MORE THAN YEAR SO THE WARRANTY IS ENDED
IF I ROOTED THE PHONE KNOX WILL NOT WORKING ?
THANK YIU VERY MUCH FOR YOUR INFORMATIONS :angel:
Your post is very hard to read due to the text size and colour.
You are also posting in the wrong forum .
Root may cause problems .
Stock rom cannot be modified but there are some stock themes on Play store .
Question three fail to understand .
Faq1s and Guides are free to read .
Hi my friend
JJEgan said:
Your post is very hard to read due to the text size and colour.
You are also posting in the wrong forum .
Root may cause problems .
Stock rom cannot be modified but there are some stock themes on Play store .
Question three fail to understand .
Faq1s and Guides are free to read .
Click to expand...
Click to collapse
Sorry for text size and color
My question when i download the stock rom and rooted the phone will that cause problems due to knox
My thrid questions i am form egypt and i downloaded uk rom will knox works or i must download egypt rom
I just want to root the phone and remain on stock rom because the stock rom is more stable and good battery
And about the stock rom canot modify because of knox what is sloution ??
And about theme i donot mean apk theme i mean zipfile theme
http://www.samsung.com/global/business/mobile/solution/security/samsung-knox
Basic reading suggests it will not work on modified systems .
Egyptionman said:
hi my friends i have a questions about samsung knox
I am worried about this app so i have a lot of questions
What is knox ?
Can i root the phone like s3 4.1.2 ?
Can i modify and change rom to any rom ?
What will happen if i donot flash my country rom knox will not work ?
Can i delete or disable the program
I have s3 and i want to know alot about knox and 4.3 coming very soon and thank you :angel:
Click to expand...
Click to collapse
http://forum.xda-developers.com/showpost.php?p=46839604&postcount=7991
http://forum.xda-developers.com/showpost.php?p=46850262&postcount=8000
Thanks my friend
JJEgan said:
http://www.samsung.com/global/business/mobile/solution/security/samsung-knox
Basic reading suggests it will not work on modified systems .
Click to expand...
Click to collapse
Thanks my friend samsung makes things hard
Thanks my friend
SignetSphere said:
http://forum.xda-developers.com/showpost.php?p=46839604&postcount=7991
http://forum.xda-developers.com/showpost.php?p=46850262&postcount=8000
Click to expand...
Click to collapse
Thanks for help
Its an enterprise security system .
Pointless if its open to hacking .
JJEgan said:
Its an enterprise security system .
Pointless if its open to hacking .
Click to expand...
Click to collapse
i know that and knox is good for security and feel safe but we all love to modify our phones with custom themes or custom roms its one advantage of android in general android is an open source operation system not like apple os
Egyptionman said:
i know that and knox is good for security and feel safe but we all love to modify our phones with custom themes or custom roms its one advantage of android in general android is an open source operation system not like apple os
Click to expand...
Click to collapse
But its not aimed at people like you but business that requires security .
JJEgan said:
But its not aimed at people like you but business that requires security .
Click to expand...
Click to collapse
yes as i said before its good move for samsung
Hi,
After my warranty has expired, I have rooted my phone (flashed CWM-based Recovery v5.5.0.4) to be able to use root-enabled apps, which I don't use anymore. I didn't not flash custom firmware and stayed with stock. Now I hear there is an official update to 4.3, which I would very much like to install. However, the OS fails to check for updates with the following message:
Your device has been modified. Software updates are not available
Click to expand...
Click to collapse
I have tried removing the root using "Full unroot" option in the SuperUser app settings, which have promptly removed the app after a reboot. This didn't not solve the problem. The question is what is the easiest way to install an official update? Do I need to flash stock recovery? Where can I get one? How do I do that? Do I need to reset the flash counter? How do I do that? Or can I do it some easier way? I don't really care if the root stays or not, however, I would prefer not to loose data and make as few dangerous steps as possible (especially the ones requiring to take out the battery or unplug the USB cable at "right" time...).
Thanks in advance for detailed info and/or pointers to relevant tutorials.
Model number: Samsung S3 GT-I9300.
Baseband version: I9300XXEMG64
Android version: 4.1.2
Kernel version: 3.0.31-1314436, [email protected]#1, SMP PREEMPT Tue Jul 16 20:28:36 KST 2013
Build number: JZO54K.I9300XXEMG4
Rules please post in Q&A in future ,
Your hearing is bad 4.3 has been pulled for now .
You need to start by reading the faqs and guides that contain all the answers .
OTA will not work on root .
Use Kies .
UNDERSTAND FIRST
http://forum.xda-developers.com/showthread.php?t=2362743
Network IMEI EFS
http://forum.xda-developers.com/showthread.php?t=2393289
Phone Freezes
http://forum.xda-developers.com/showthread.php?t=2133401
Sudden Death .
http://forum.xda-developers.com/showthread.php?t=2091045
RETURN TO STOCK
http://forum.xda-developers.com/showthread.php?t=2323847
JJEgan said:
Rules please post in Q&A in future ,
Click to expand...
Click to collapse
Sorry for that. Will do from now on.
JJEgan said:
Your hearing is bad 4.3 has been pulled for now .
Click to expand...
Click to collapse
I though it was pushed again, see http://www.androidpit.com/samsung-rectifies-android-4-3-bungle.
JJEgan said:
You need to start by reading the faqs and guides that contain all the answers .
OTA will not work on root .
Use Kies .
Click to expand...
Click to collapse
Couldn't find any info on whether an update through Kies preserves the /data partition? I understand that probably there is just no sense wiping it, but would still appreciate if someone confirmed this.
JJEgan said:
UNDERSTAND FIRST
http://forum.xda-developers.com/showthread.php?t=2362743
Network IMEI EFS
http://forum.xda-developers.com/showthread.php?t=2393289
Phone Freezes
http://forum.xda-developers.com/showthread.php?t=2133401
Sudden Death .
http://forum.xda-developers.com/showthread.php?t=2091045
RETURN TO STOCK
http://forum.xda-developers.com/showthread.php?t=2323847
Click to expand...
Click to collapse
Very interesting read. Many thanks. In fact reading the list of root advantages made me want to have root again... though now I don't have the SU binary and not sure how to get it back. I guess I'll have to do the rooting process again after installing new ROM. Btw, does flashing stock ROM restore stock recovery too?
rryk said:
I though it was pushed again
Click to expand...
Click to collapse
I've just read it more carefully (text below huge Samsung logo). It was pushed, but since I got my phone in Germany, the update is only for G4. An update to G3 is only available in US. That is probably why my Kies doesn't show any updates yet and no updates would be available via OVA even if I had it working...
Couldn't find any info on whether an update through Kies preserves the /data partition? I understand that probably there is just no sense wiping it, but would still appreciate if someone confirmed this.
Yes its preserved but only a fool has no backup .
Kies is a Samsung tool you will not find much information about Kies as its not a development tool .
JJEgan said:
Yes its preserved but only a fool has no backup .
Click to expand...
Click to collapse
I do have a backup and was merely asking to find out whether I will have to use it or not. Perhaps I would choose to postpone the update if it meant that I would have to go though the process of restoring from backup which is not easy. So I am no fool and my hearing is good enough. I appreciate your help, but please quit insulting me.
Hi there! I have some problems that are very annoying. Since 4.3 update, my phones lags a lot at unlock screen, gallery, camera, settings etc. Everytime I enter one of these there is a delay of maybe 2-3 seconds! I HATE THAT. Is there any solution for that? I'm hopeless already, I asked in so many forums..Please, I need some help. Many said, root it. I don't know how.
Read the stickies in the development thread they will tell you how, and why, to root it.
ghostofcain said:
Read the stickies in the development thread they will tell you how, and why, to root it.
Click to expand...
Click to collapse
So the only thing that can help me out is to root the phone?
fuzi26 said:
So the only thing that can help me out is to root the phone?
Click to expand...
Click to collapse
have you updated from 4.1.2 to 4.3 without factory reset? if yes then a factory reset might help, but i can't promise that it will. In most cases it is always recommended to clear data when moving from one android version to another.
otherwise try to avoid touchwiz apps, they always have this lag when starting. root will not magically remove these lags, but you can delete bloat apps, which will minimize lags.
if you really want to have have an optimized, nearly lag free samsung based ROM, then I would suggest you to try one of the samsung based custom ROMs here from s3 development forum (what also would need some knowledge, so read the stickies carefully)