Frequently Asked Questions

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Zatta

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Dec 22, 2010
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[SIZE=+3]Frequently Asked Questions[/size]
[SIZE=+2]Samsung Galaxy S III - International GT-I9300
[/size]

[SIZE=+1]This a short list of frequently asked questions with answers related to the Samsung Galaxy S III. It should serve as a starting point for gathering knowledge and finding solutions to many common problems. Please only post in this thread with feedback on how to improve this document and refrain from posting "Thank you" type responses. If you have additional questions or require more help, try to find an existing thread or create your own. Do not use this as a general help thread.[/size]

[SIZE=+1]Q1: How do I root my Samsung Galaxy S3 i9300?[/size]
There are several methods to achieve this:

[SIZE=+1]Q2: What can I do to conserve/improve battery life?[/size]
Official Samsung Touchwiz ROMs enable Smart Screen by default. You can tell it's enabled if you see an eye icon in the top right corner of your phones home screen. Smart Screen attempts to sense when you are looking at the screen to turn it on and to rotate the screen when you change your viewing angle but it is also notorious for draining the battery.

To turn it off go to Settings -> My Device -> Smart Screen then disable 'Smart Stay' and 'Smart rotation'.

To conserve your battery under official firmwares it is also recommended to enable power saving mode and, for all firmwares, you should turn off the WiFi, Bluetooth and your mobile data connections whenever you are not using them to minimize battery drain.​

[SIZE=+1]Q3: How do I flash (install) ROMs?[/size]
ROMs that come packaged as a .zip file are usually installed using a custom recovery tool such as TWRP or ClockworkMod. Unlike previous Samsung Galaxy S devices the recovery for the Samsung Galaxy S3 i9300 is NOT part of the kernel. Instead, the SGSIII has a separate recovery partition. Custom recovery partitions can be installed using Odin if you are running Windows or Heimdall, which is available for Linux/UNIX and Mac OSX as well as Windows.

Some ROMs come packaged as a .tar.md5 file. These can only be directly flashed using Odin. Heimdall users are required to extract the individual tar files from within the .tar.md5 file and then flash them to the correct partitions using an appropriate .pit (partition map) file. Heimdall can be used to generate .pit files by extracting the existing partition map from your phone. Note that .tar.md5 files are actually just regular tar files with an added .md5 extension.​

[SIZE=+1]Q4: How can I return to the stock ROM?[/size]
There is sometimes the need to revert to the stock ROM, for example when you need to return your device if its still under warranty. doovd made this great guide to the process.

[SIZE=+1]Q5: What is Odin?[/size]
Odin is a leaked tool from Samsung. It is used to flash firmwares (aka ROMs) to phones. There are many how-to's covering the use of Odin, such as this. Others can be found on the XDA WIKI.

[SIZE=+1]Q6: How do I unlock my bootloader?[/size]
There is no need to unlock the bootloader as it is already unlocked! This is the case for most Samsung devices.​

[SIZE=+1]Q7: I have heard about EFS. Why is this so important?[/size]
/EFS is a partition on your phone where your IMEI code is stored. Without it your phone is an expensive PDA as you will not be able to make calls. Make sure to have a backup of this partition on a separate device before you attempt to flash new ROMs. TWRP and Philz recovery let you backup the EFS partition.

The format of the EFS partition changed with the release of the MG4 modem firmware so this can cause issues if your modem version and EFS don't match. Here is an explanation of the Samsung firmware naming convention.

[SIZE=+1]Q8: After flashing a ROM I cannot make calls. I now get a 'Not registered on network' error on my lock screen and if I look under Settings -> About Phone -> Status my IMEI begins with 0049 and my serial number has changed to a string of zeros. How can I fix this?[/size]
There are many threads on this forum suggesting this problem is caused by an EFS/modem mismatch or a corrupt EFS partition. This is a potential cause but its more likely you have flashed a ROM with the incorrect CSC (Customer Sales Code) for your phone network. For example, you can experience this error if you've flashed a BTU ROM when your network requires a H3G (Three) CSC. It can also be caused by flashing a ROM using the PDA instead of the CSC option under Odin. You can check your current CSC by dialling *#1234# or connecting your phone to Kies.

If you flashed with Odin and you're sure you flashed a ROM with the correct CSC, the first thing to try is flashing the same ROM using Odin's CSC mode instead of PDA mode. If your phone is rooted you can try changing the CSC mode using a CSC changer app but be warned that doing so will perform a factory reset - wiping all your settings, apps, messages and locally stored contacts etc. If none of those methods restore your correct IMEI, serial and network connectivity then a number of S3 users have reported success by flashing A.S._id's rescue firmware.

[SIZE=+1]Q9: I'm sure I've correctly flashed an SGSIII ROM with the right CSC for my network but why can I still not make calls?[/size]
If your phone was running an Android version less than v4.3 before you flashed a new ROM then you may need to install a patched modem and, if you upgraded to a newer stock ROM, a patched kernel too such as the zuluman modem FW/kernel. You will usually not need to install a patched kernel if you install CyanogenMod or a CM-based ROM. A number of kernels and modem firmwares patched for Android 4.3+ are available here.

[SIZE=+1]Q10: What is the best ROM for the SGSIII?[/size]
Galaxy ROMs come in two flavours. CyanogenMod-based ROMs and TouchWiz-based ROMs. CyanogenMod is completely open source and forms the basis of several derivatives such as AOKP, ParanoidAndroid and many more. These ROMs lack a number of features exclusive to Samsung's TouchWiz like Svoice, Smart Stay, S-Beam and so on. On the other hand, they generally perform better thanks to consuming less resources.
There is no such thing as 'the best rom', it is a subjective matter. Please read this sticky thread in the General section.

[SIZE=+1]Q11: Where can I download the official firmware files from?[/size]
Official firmware files are available here.

[SIZE=+1]Q12: How do I enable Debug mode?[/size]
Since Android 4.2 debug (developer) mode has been hidden by default. Debug mode can be enabled by tapping 7 times on Build number under Settings -> About Phone.​

[SIZE=+1]Q13: How do I enter Download Mode and Recovery mode?[/size]
Make sure your phone is unplugged and powered off, then:
Download Mode: Hold Volume down, home, and power until you see the green dude.
Recovery: Hold Volume up, home, and power for about 5 seconds then release all buttons. This might take a couple of tries.​

[SIZE=+1]Q14: What is the 'Flash Counter'?[/size]
Your phone's flash counter is triggered and incremented after installing a custom firmware. This is Samsung's way of knowing that you have modded your device. Thanks to the awesome people at XDA, this counter can be reset. Refer to this thread.

[SIZE=+1]Q15: What is ADB and how do I use it?[/size]

[SIZE=+1]Q16: I've been asked to provide a logcat. How do I do that?[/size]

[SIZE=+1]Q17: TitaniumBackup can't find my backups anymore![/size]
This usually occurs after upgrading to Android 4.2 when users forget to also update the recovery partition. Older recoveries can't handle the multiuser support on the sdcards so your data got repeatedly shifted to a folder named 0, resulting in /sdcard/0/0/0... etc. That is where your backups have gone! You simply have to update TitaniumBackup's settings to point to the correct location and your backups will re-appear.​

[SIZE=+1]Q18: I have searched everywhere and still can't find an answer to my question![/size]
Have you really searched everywhere? Google? Have you tried asking in the XDA thread relating to your problem? Have you read the stickies and FAQs? If you have honestly spent more than 5-10 minutes searching for an answer, post a new thread in the Q&A section.​

*​


This FAQ is part of a Recognized Contributor Group Initiative.Please look for a similar FAQ thread when visiting another device forum.

A special thanks to everyone who contributed to the production of this FAQ
[SIZE=+1]in particular XDA Member @pfmdan, aka Dan MacDonald / danboid who basically rewrote this entire FAQ. Please thank him for this FAQ!
Also thanks to @SkippyleGrandGourou for providing updated links to TWRP and ClockworkMod
[/size]
 
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Zatta

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Dec 22, 2010
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Do not post "Thank you" type responses. If you have additional questions or require more help, try to find an existing thread or create your own. Do not use this as a general help thread. More Frequenty Asked Questions and their answers are welcome here and I will add them to the OP.
 
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Zatta

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Dec 22, 2010
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fatiherkoc

Member
Nov 11, 2012
36
12
Ynt: Frequently Asked Questions

Good job. Ty...

GT-I9300 cihazımdan Tapatalk 2 ile gönderildi
 

JJEgan

Senior Member
Oct 24, 2010
30,509
5,923
Samsung Galaxy Note 3
If there is no faq then how to get them to read it first?


My point is that there are already FAQS and Guides stickied that are unread .All bar question 12 have been posted for a long long time in the stickies .

But i will be honest i have no idea at all how mods can prevent this forum from degenerating even further .

Possible duplication of sticky s in both General and Q&A may help .

jje
 

krs360

Senior Member
Dec 18, 2007
798
283
Devon, UK
Android Wear
Google Pixel 6
My point is that there are already FAQS and Guides stickied that are unread .All bar question 12 have been posted for a long long time in the stickies .

But i will be honest i have no idea at all how mods can prevent this forum from degenerating even further .

Possible duplication of sticky s in both General and Q&A may help .

jje

It's been a long time since I registered, but is there some kind of big splash screen that pops up saying read the FAQ/stickies? If not, there should be!

And it should be like one of those annoying t&c's things on windows apps that won't let you past until you have scrolled down.

In fact, you should have to read instructions, saying things like search/faq/stickies etc, then you have to answer 5 questions correctly before you can register!
 
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uzzu786

New member
Feb 24, 2013
3
0
Need help plzzz mail me ans...

I want to ask that when i dail number and send call my note 2goes to vibration..can u plzzz tell me whats the prob...mu email id is love4u80@hotmail.com
 
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DSA

Senior Member
May 15, 2011
4,740
5,777
i think you should change the answer to Q7

We have a sticky stating not to post best rom threads - that should be be included here
 
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Zatta

Inactive Recognized Developer / Contributor
Dec 22, 2010
2,177
1,222
Sneek
Consider it done... Shortly after I get to my computer. Thanks.

Taptalked u see .. əəs n pəʞlɐʇdɐʇ
 

Gr3c0

New member
Mar 1, 2013
3
1
Question

Hi guys

I'm new on this forum. :)

I want to know what the difference is between the Supernexus mod 2.0 & CM 10.1 mod (this one is allready installed on my phone (Galaxy S3) )

I can't post on this forum : http://xdaforums.com/showthread.php?t=2076672 because I don't have the privileges. :eek:

Greets

Gr3c0
 

q8_wolf

Member
Apr 23, 2012
14
2
middle east room

Hi can ihave please the orignal middle east room jb 4.1.1

And 4.1.2

And if there not 4.1.2 jb room until now

Can you give me any room but not locked to any network
Because my mobile is not locked
My mobile GT-I9305 for middle east

Thanks.
 
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    [SIZE=+3]Frequently Asked Questions[/size]
    [SIZE=+2]Samsung Galaxy S III - International GT-I9300
    [/size]

    [SIZE=+1]This a short list of frequently asked questions with answers related to the Samsung Galaxy S III. It should serve as a starting point for gathering knowledge and finding solutions to many common problems. Please only post in this thread with feedback on how to improve this document and refrain from posting "Thank you" type responses. If you have additional questions or require more help, try to find an existing thread or create your own. Do not use this as a general help thread.[/size]

    [SIZE=+1]Q1: How do I root my Samsung Galaxy S3 i9300?[/size]
    There are several methods to achieve this:

    [SIZE=+1]Q2: What can I do to conserve/improve battery life?[/size]
    Official Samsung Touchwiz ROMs enable Smart Screen by default. You can tell it's enabled if you see an eye icon in the top right corner of your phones home screen. Smart Screen attempts to sense when you are looking at the screen to turn it on and to rotate the screen when you change your viewing angle but it is also notorious for draining the battery.

    To turn it off go to Settings -> My Device -> Smart Screen then disable 'Smart Stay' and 'Smart rotation'.

    To conserve your battery under official firmwares it is also recommended to enable power saving mode and, for all firmwares, you should turn off the WiFi, Bluetooth and your mobile data connections whenever you are not using them to minimize battery drain.​

    [SIZE=+1]Q3: How do I flash (install) ROMs?[/size]
    ROMs that come packaged as a .zip file are usually installed using a custom recovery tool such as TWRP or ClockworkMod. Unlike previous Samsung Galaxy S devices the recovery for the Samsung Galaxy S3 i9300 is NOT part of the kernel. Instead, the SGSIII has a separate recovery partition. Custom recovery partitions can be installed using Odin if you are running Windows or Heimdall, which is available for Linux/UNIX and Mac OSX as well as Windows.

    Some ROMs come packaged as a .tar.md5 file. These can only be directly flashed using Odin. Heimdall users are required to extract the individual tar files from within the .tar.md5 file and then flash them to the correct partitions using an appropriate .pit (partition map) file. Heimdall can be used to generate .pit files by extracting the existing partition map from your phone. Note that .tar.md5 files are actually just regular tar files with an added .md5 extension.​

    [SIZE=+1]Q4: How can I return to the stock ROM?[/size]
    There is sometimes the need to revert to the stock ROM, for example when you need to return your device if its still under warranty. doovd made this great guide to the process.

    [SIZE=+1]Q5: What is Odin?[/size]
    Odin is a leaked tool from Samsung. It is used to flash firmwares (aka ROMs) to phones. There are many how-to's covering the use of Odin, such as this. Others can be found on the XDA WIKI.

    [SIZE=+1]Q6: How do I unlock my bootloader?[/size]
    There is no need to unlock the bootloader as it is already unlocked! This is the case for most Samsung devices.​

    [SIZE=+1]Q7: I have heard about EFS. Why is this so important?[/size]
    /EFS is a partition on your phone where your IMEI code is stored. Without it your phone is an expensive PDA as you will not be able to make calls. Make sure to have a backup of this partition on a separate device before you attempt to flash new ROMs. TWRP and Philz recovery let you backup the EFS partition.

    The format of the EFS partition changed with the release of the MG4 modem firmware so this can cause issues if your modem version and EFS don't match. Here is an explanation of the Samsung firmware naming convention.

    [SIZE=+1]Q8: After flashing a ROM I cannot make calls. I now get a 'Not registered on network' error on my lock screen and if I look under Settings -> About Phone -> Status my IMEI begins with 0049 and my serial number has changed to a string of zeros. How can I fix this?[/size]
    There are many threads on this forum suggesting this problem is caused by an EFS/modem mismatch or a corrupt EFS partition. This is a potential cause but its more likely you have flashed a ROM with the incorrect CSC (Customer Sales Code) for your phone network. For example, you can experience this error if you've flashed a BTU ROM when your network requires a H3G (Three) CSC. It can also be caused by flashing a ROM using the PDA instead of the CSC option under Odin. You can check your current CSC by dialling *#1234# or connecting your phone to Kies.

    If you flashed with Odin and you're sure you flashed a ROM with the correct CSC, the first thing to try is flashing the same ROM using Odin's CSC mode instead of PDA mode. If your phone is rooted you can try changing the CSC mode using a CSC changer app but be warned that doing so will perform a factory reset - wiping all your settings, apps, messages and locally stored contacts etc. If none of those methods restore your correct IMEI, serial and network connectivity then a number of S3 users have reported success by flashing A.S._id's rescue firmware.

    [SIZE=+1]Q9: I'm sure I've correctly flashed an SGSIII ROM with the right CSC for my network but why can I still not make calls?[/size]
    If your phone was running an Android version less than v4.3 before you flashed a new ROM then you may need to install a patched modem and, if you upgraded to a newer stock ROM, a patched kernel too such as the zuluman modem FW/kernel. You will usually not need to install a patched kernel if you install CyanogenMod or a CM-based ROM. A number of kernels and modem firmwares patched for Android 4.3+ are available here.

    [SIZE=+1]Q10: What is the best ROM for the SGSIII?[/size]
    Galaxy ROMs come in two flavours. CyanogenMod-based ROMs and TouchWiz-based ROMs. CyanogenMod is completely open source and forms the basis of several derivatives such as AOKP, ParanoidAndroid and many more. These ROMs lack a number of features exclusive to Samsung's TouchWiz like Svoice, Smart Stay, S-Beam and so on. On the other hand, they generally perform better thanks to consuming less resources.
    There is no such thing as 'the best rom', it is a subjective matter. Please read this sticky thread in the General section.

    [SIZE=+1]Q11: Where can I download the official firmware files from?[/size]
    Official firmware files are available here.

    [SIZE=+1]Q12: How do I enable Debug mode?[/size]
    Since Android 4.2 debug (developer) mode has been hidden by default. Debug mode can be enabled by tapping 7 times on Build number under Settings -> About Phone.​

    [SIZE=+1]Q13: How do I enter Download Mode and Recovery mode?[/size]
    Make sure your phone is unplugged and powered off, then:
    Download Mode: Hold Volume down, home, and power until you see the green dude.
    Recovery: Hold Volume up, home, and power for about 5 seconds then release all buttons. This might take a couple of tries.​

    [SIZE=+1]Q14: What is the 'Flash Counter'?[/size]
    Your phone's flash counter is triggered and incremented after installing a custom firmware. This is Samsung's way of knowing that you have modded your device. Thanks to the awesome people at XDA, this counter can be reset. Refer to this thread.

    [SIZE=+1]Q15: What is ADB and how do I use it?[/size]

    [SIZE=+1]Q16: I've been asked to provide a logcat. How do I do that?[/size]

    [SIZE=+1]Q17: TitaniumBackup can't find my backups anymore![/size]
    This usually occurs after upgrading to Android 4.2 when users forget to also update the recovery partition. Older recoveries can't handle the multiuser support on the sdcards so your data got repeatedly shifted to a folder named 0, resulting in /sdcard/0/0/0... etc. That is where your backups have gone! You simply have to update TitaniumBackup's settings to point to the correct location and your backups will re-appear.​

    [SIZE=+1]Q18: I have searched everywhere and still can't find an answer to my question![/size]
    Have you really searched everywhere? Google? Have you tried asking in the XDA thread relating to your problem? Have you read the stickies and FAQs? If you have honestly spent more than 5-10 minutes searching for an answer, post a new thread in the Q&A section.​

    *​


    This FAQ is part of a Recognized Contributor Group Initiative.Please look for a similar FAQ thread when visiting another device forum.

    A special thanks to everyone who contributed to the production of this FAQ
    [SIZE=+1]in particular XDA Member @pfmdan, aka Dan MacDonald / danboid who basically rewrote this entire FAQ. Please thank him for this FAQ!
    Also thanks to @SkippyleGrandGourou for providing updated links to TWRP and ClockworkMod
    [/size]
    3
    @Zatta because you are an RD you have the ability to lock your own thread so if you feel that there is to much ot then do so. This way you can unlock and update as needed without a moderators assistance. ;)
    Well, okay. After some second thoughts about this suggestion:

    Thread closed!​

    I hoped to get additional questions with their answers to improve this FAQ. That didn't happen. My PM box is always open for suggestions so please, give me a hand and improve this FAQ together.
    2
    [QnUOTE=Glebun;38980542]ROM manager has issues with i9300, flash the recovery manually
    Hello,
    Thanks for helping out with tips.

    Now I cannot find my titanium backup app anymore. Most of my settings and phone numbers are there but I'm not sure how to get all my apps back! Is there a guide for newbies on how to back up with titanium?
    Thank you!
    Still using Galaxy S3 I9300[/QUOTE]


    A google or XDA google for Titanium backup how to will find one or two on XDA .
    Could also be in the stickied faqs and guides .


    jje
    1
    Maybe you can add the FAQ: How do I go back to stock? That question gets asked A LOT :)
    Thanks for the idea! Please feel free to submit more, together with the answer please :highfive:
    The real need is not a sticky or a faq its getting the ffffff to read them first .
    If there is no faq then how to get them to read it first?
    1
    My point is that there are already FAQS and Guides stickied that are unread .All bar question 12 have been posted for a long long time in the stickies .

    But i will be honest i have no idea at all how mods can prevent this forum from degenerating even further .

    Possible duplication of sticky s in both General and Q&A may help .

    jje

    It's been a long time since I registered, but is there some kind of big splash screen that pops up saying read the FAQ/stickies? If not, there should be!

    And it should be like one of those annoying t&c's things on windows apps that won't let you past until you have scrolled down.

    In fact, you should have to read instructions, saying things like search/faq/stickies etc, then you have to answer 5 questions correctly before you can register!