Installing a new rom - Galaxy S III Q&A, Help & Troubleshooting

Hi sorry in advance if this kind of question comes up alot but imk looking to install a new rom onto my s3 how easy is it to do it? i already have a rom installed (darkys) is it a simple matter of finding a tutorial and just over wiping the curent rom with the new one? or do i have to go back to facotry settings and start from fresh?

Generally follow instructions on your chosen Rom thread
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Most are just wipe cache and flash over existing rom .
But easy peasy problem solver is to have a current Nandroid backup to restore if needed .
jje

does anyone know if the cynagen mod is released for the s3 i9300??

Seany_Blitz said:
does anyone know if the cynagen mod is released for the s3 i9300??
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cm10 and cm9, a quick look in development would have told you this
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Related

CyanogenMod question

If a want to upgrade to CM 10 or CM9, from my stock rom, do I really need to do a wipe data, wipe factory reset? & what would happen if I do not? Is there any chance that something bad happen to it? Thank you guys Greetings.
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TheAndroidLord said:
If a want to upgrade to CM 10 or CM9, from my stock rom, do I really need to do a wipe data, wipe factory reset? & what would happen if I do not? Is there any chance that something bad happen to it? Thank you guys Greetings.
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Yes, if coming from a GB based rom you should wipe date/factory reset.
Is there any reason why you cant? All you need to do is backup apps/app data with Titanium Backup and then restore once you have fresh rom.
TheAndroidLord said:
If a want to upgrade to CM 10 or CM9, from my stock rom, do I really need to do a wipe data, wipe factory reset? & what would happen if I do not? Is there any chance that something bad happen to it? Thank you guys Greetings.
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1. Yeah full wipe is recommended if you are downgrading or upgrading to another Android version.
2. If you don't do full wipe there are chances that your CM9 will not bee stable, freezes and lockups here and there
Swyped from Samsung Galaxy SII
What about an ICS stock rom? that's the one I'm using right now . If I install the CM rom, and if I want to downgrade to the stock rom again, could I do that? Thank you for answering.
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TheAndroidLord said:
What about an ICS stock rom? that's the one I'm using right now . If I install the CM rom, and if I want to downgrade to the stock rom again, could I do that? Thank you for answering.
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If you are moving from stock to Aosp Roms and vice versa, you have to do full wipe
Swyped from Samsung Galaxy SII
Jokesy said:
If you are moving from stock to Aosp Roms and vice versa, you have to do full wipe
Swyped from Samsung Galaxy SII
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Thank you all guys, this really helped me
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TheAndroidLord said:
If I install the CM rom, and if I want to downgrade to the stock rom again, could I do that?
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Yes, you would just flash the stock ROM using Odin, and that would "unroot" your handset in the process.
If you try to switch from stock to a custom ROM, or between different custom ROMs without wiping your data, you can soft or hard-brick your handset. It's not worth the risk.

> need help before i risk flasing my first rom <

This is my first post and i was wondering if people could answer some questions i have.
First off heres my phones specs
Samsung galaxy s2
Model number
GT-I9100
Android version
4.0.3
Baseband version
I9100XXLPQ
Kernel version
3.0.15-I9100XXLPQ-CL223505
[email protected] #3
Build number
IML74K.XXLPQ
I've rooted my phone using rachmat3 method and thats how far i've got because only just got phone as a gift and im scared to flash a new rom incase i brick my phone.
Is it safe to use the cwm.zip to flash a rom that i used from rachmat3 root method or do i need a updated version of cwm?
Can someone recommend a fully working paranoid android rom that i can use for daily use?
Which kernel would be best to use with paranoid android rom?
Should i flash a kernel before i flash a rom?
If i install paranoid android rom would i then have a permanant cwm on my device or would i still need to use my temporery cwm.zip?
What is the chances of me bricking my phone?
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Flash what ever rom u want till its for GT-I9100
No need to worry
Just read the specific rom instructions carefully
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Yes mate now u can flash any Rom ....Just read the instruction before flashing
I would advise you to flash a safe kernel first before doing any wipe and flashing any roms. Siyah is a safe bet.
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1. Download ROM Manager and you'll be able to flash any ROMs you wish using that.
2. All the PA versions are working fine, so just browse through and choose for yourself.
3. Asking questions like that is against forum rules because they often lead to arguments. The best advice is just to download and flash different kernels and stick with which ever one you're happy with.
4. It really doesn't matter in which order you flash them. The result is still the same. I personally always flash the ROM first, but it doesn't make a difference.
5. If you use ROM Manager, as mentioned previously, even if you have to do a full wipe when flashing a different ROM, it doesn't matter because you can simply download it again anyway. Or just save it to your SD card.
6. The changes if bricking your phone are higher if you're worried about it. Just be sure to read all instructions given about installation and follow them perfectly and you'll be fine.
If after reading about flashing ROMs you are still worried, then you're better off waiting for a bit until you've done more research into what exactly is needed.
I'm a product of the system I was born to destroy!
Thanks for your replys.
just follow the steps mentioned and follow some video (like on youtube) and it'll be easy!
Would it be to much to ask if someone could put a link to the right paranoid android rom for my phone please
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toonarmy4life said:
Would it be to much to ask if someone could put a link to the right paranoid android rom for my phone please
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ParanoidAndroid for GT I9100: http://forum.xda-developers.com/showthread.php?t=1580070
Swyped from my Samsung Galaxy SII
Cheers jokesy
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I don't recommend using ROM Manager since it can brick the phone.
Why don't flash custom kernel and use real CWMR?
KidCarter93 said:
It really doesn't matter in which order you flash them. The result is still the same
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Most ROM zips include kernels, so if somebody wants to stay with the same kernel, then it's necessary to flash custom kernel again.
przemcio510 said:
I don't recommend using ROM Manager since it can brick the phone.
Why don't flash custom kernel and use real CWMR?
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I agree, I wouldn't recommend rom manager for the s2
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I just mentioned ROM Manager from personal preference to be honest.
I've always used it on my S2 and never had a problem with it.
I'm a product of the system I was born to destroy!
KidCarter93 said:
I just mentioned ROM Manager from personal preference to be honest.
I've always used it on my S2 and never had a problem with it.
I'm a product of the system I was born to destroy!
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Yeah, but lots of people have bricked because of it
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So should i flash siyah kernal then flash a new rom
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You can flash any rom personally i love cm 9 and it is safe to flash with cwm. I was worried the first time too
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Ok so i've downloaded paranoid android and gapps ive nandroid backed up i've efs backed up all thats left to do is flash pa lol is it defently safe using rachmet3 temp cwm.zip or should i download a new temp cwm or use permanent cwm through flashing siyah kernal. Just coz i have no pc to revive a bricked phone and i wont beable to check online for solutions as my phone will be bricked.
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You will need a pc if for example you flash a kernel and somethings not right.You cant get cwm, only download mode.
That happened to me when I flashed a siyah kernel.Phone was stuck and I couldnt boot into cwm.Only way to fix was boot to download mode and use odin/pc.
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Thanks for letting me know. I think i'l pass on a new rom for now then. Im gutted coz i really wanted to try pa rom it looks ace
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toonarmy4life said:
Thanks for letting me know. I think i'l pass on a new rom for now then. Im gutted coz i really wanted to try pa rom it looks ace
Sent from my GT-I9100 using Tapatalk
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I can help you from here, pretty simple
Within the next 30 mins, you should be running PA.
First, flash Siyah kernel with your temporary CWM recovery. Very safe
when you are done, let me know

Flash Custom ROM for the first time, anyone can help me?

This is first time I want flash custom rom, I coming from stock rom Samsung Galaxy S2 I9100G, android 4.0.3. And now already root, I have no experience with Samsung, my question is any easy tutorial for me to flash custom Rom? Or it just same like flash custom rom for HTC? Pls I need help
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iamaniff said:
This is first time I want flash custom rom, I coming from stock rom Samsung Galaxy S2 I9100G, android 4.0.3. And now already root, I have no experience with Samsung, my question is any easy tutorial for me to flash custom Rom? Or it just same like flash custom rom for HTC? Pls I need help
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You can search the threads for guides. I don't use HTC so I'm not familiar with it. Starting you can find a ROM that is suitable for your firmware. Gt i9100G. Be sure not to get GT-i9100 ROM because its two worlds apart. Once you done that, go to cwm and fully wipe everything. Then install from SD card. If the roms has aroma installer you are good to go. To get detailed guides please search the forums.
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preseodymium said:
You can search the threads for guides. I don't use HTC so I'm not familiar with it. Starting you can find a ROM that is suitable for your firmware. Gt i9100G. Be sure not to get GT-i9100 ROM because its two worlds apart. Once you done that, go to cwm and fully wipe everything. Then install from SD card. If the roms has aroma installer you are good to go. To get detailed guides please search the forums.
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Alright. Thanks.. I got it
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Correct and safest way to update rom?

Hi there. I am currently running Liquidsmooth Rom on my i9300 and I wanted to update it to the latest version 2.9. I had a look through and couldn't find a clear way on how to flash the update. If any experienced flashers could guide me to how I should go to update my rom it'll be much, much appreciated. Thanks in advance guys.
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Muzza_94 said:
Hi there. I am currently running Liquidsmooth Rom on my i9300 and I wanted to update it to the latest version 2.9. I had a look through and couldn't find a clear way on how to flash the update. If any experienced flashers could guide me to how I should go to update my rom it'll be much, much appreciated. Thanks in advance guys.
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First of all you should always make a backup in case something goes wrong...usually only you should do is download the rom to your phone, reboot in to recovery, wipe cache, in advanced..wipe dalvik, then just go in install zip from sd card, find downloaded rom and install it, then reboot and everything should be fine
if it's not, factory reset
Backup first in recovery then flash in cwm..
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[Q]

Hello guys please help me out.I m using Rooted Galaxy S2 on gingerbread so my question is can I upgrade directly to jelly bean skipping ICS?
Now since my I m rooted on gingerbread should I first unroot or install stock gingerbread and then upgrade or I can directly for the upgrade?
Please help me out and I will be waiting for your help
Regards!
Hey your rooted so if I have gingerbread ROM rite now just look up the stock ice cream sandwich ROM or a customized one its up to u just put it on then root of ur sdcard go into clockwork mod recovery make sure to make a backup if u already did cool an wipe the delvki ur cache an then factory reset the phone its OK once u do that cuz ull be flashing from a clean wipe Dont just download an automatic flash u will run into problems like that OK any questions just ask
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prittyboy203 said:
Hey your rooted so if I have gingerbread ROM rite now just look up the stock ice cream sandwich ROM or a customized one its up to u just put it on then root of ur sdcard go into clockwork mod recovery make sure to make a backup if u already did cool an wipe the delvki ur cache an then factory reset the phone its OK once u do that cuz ull be flashing from a clean wipe Dont just download an automatic flash u will run into problems like that OK any questions just ask
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I m sorry I could not understand you,wait,now that I m rooted on gingerbread can I upgrade to stock ICS Rom from downloading it outside,not OTA?
secondly can I directly upgrade to jelly bean from Gingerbread skipping ICS?
Sorry lol if u want to jump past one update like u want its OK if ur rooted but u can't take the ota cuz ur rooted u could unroot an then flash it but there's really no point just download a jellybean ROM an go into ur recovery an make sure to wipe an there's no problems jumping past ice cream sandwich
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prittyboy203 said:
Sorry lol if u want to jump past one update like u want its OK if ur rooted but u can't take the ota cuz ur rooted u could unroot an then flash it but there's really no point just download a jellybean ROM an go into ur recovery an make sure to wipe an there's no problems jumping past ice cream sandwich
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Ok so to directly download jellybean I don't have to unroot right?I can just download stock jelly bean and install it on my rooted Gingerbread right?
Yup exactly lol
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---------- Post added at 09:38 AM ---------- Previous post was at 09:37 AM ----------
U have flashed Roms on ur s2 before ? Just thought I'd ask I could look around for a easy guide u could follow to flash the Roms onbur phone ohh an what recovery are u using Cwm or Twp
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If your device is rooted, then you can download JB rom and flash it without going through ICS update
/Amiroslo
amiroslo said:
If your device is rooted, then you can download JB rom and flash it without going through ICS update
/Amiroslo
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That's right and I learnt it a while ago but where can I find the stock Jelly bean rom for my Galaxy S2?
I need to know which s2 u have as there's different ROM for Carrier
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prittyboy203 said:
I need to know which s2 u have as there's different ROM for Carrier
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It's an international version and I should install Odin select the rom in PDA and put my phone in download mode and click start in Odin right ?
Got ya I'll look around but I've never had to use Odin to flash anything besides to do the rooting process u would just need to get into ur recovery mode ether using clockwork mod or teamwin pro an that's how u would flash a ROM to the s2
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Lol you don't need to be rooted inorder to flash a stock ROM
1. Yes you can flash a JB firmware directly
Go to here and find your fitting firmware. You can check by going to setting>about phone
Do you know how to flash this stock rom with Odin?
*edit - you will be unrooted when you flash stock JB rom so you will have to root it again using any JB-rooting method
TheMasterOfToast said:
Lol you don't need to be rooted inorder to flash a stock ROM
1. Yes you can flash a JB firmware directly
Go to here and find your fitting firmware. You can check by going to setting>about phone
Do you know how to flash this stock rom with Odin?
*edit - you will be unrooted when you flash stock JB rom so you will have to root it again using any JB-rooting method
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Ahh I think yes I will explain but ok correct me if I am wrong I will put my phone in download mode and go to Odin select the rom using PDA and start the process,right ?But I was told sometimes it gets stuck so can I interrupt the process and restart the phone and the process again ?
Thank you all for the help:
Oh so then u are trying to get the ota update thru Odin I was asking if u wanted to just flash a updated ROM that's different but if u needed I got this ROM list from Google it shows a list of ROMs for the i9100 international but there also is another forum that's a i9100g here's the link anyways for reference--->
http://forum.xda-developers.com/showthread.php?t=1529173
<-----
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prittyboy203 said:
Got ya I'll look around but I've never had to use Odin to flash anything besides to do the rooting process u would just need to get into ur recovery mode ether using clockwork mod or teamwin pro an that's how u would flash a ROM to the s2
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Oh I can install the rom directly from SD card via Recovery mode ?
prittyboy203 said:
Oh so then u are trying to get the ota update thru Odin I was asking if u wanted to just flash a updated ROM that's different but if u needed I got this ROM list from Google it shows a list of ROMs for the i9100 international but there also is another forum that's a i9100g here's the link anyways for reference--->
http://forum.xda-developers.com/showthread.php?t=1529173
<-----
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Ok I will check it out
Yup I thought that's what u where originally going to do like I posted before u can save the rom from that forum an save it directly to the sdcard then go to ur recovery make a nandroid backup so ur safe an then wipe the phone an wipe the cache and the delivk then search for the ROM u downloaded an flash that an reboot an enjoy )
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prittyboy203 said:
Yup I thought that's what u where originally going to do like I posted before u can save the rom from that forum an save it directly to the sdcard then go to ur recovery make a nandroid backup so ur safe an then wipe the phone an wipe the cache and the delivk then search for the ROM u downloaded an flash that an reboot an enjoy )
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Thank you so much buddy,I was actually Flashing CWM on Galaxy Note N 7000(Jelly Bean 4.1.2,International version)when you sent me your last message!But I dont find any Root file for it,can you help me find it?
Thank you so much bro!
nsnarayan10 said:
Thank you so much buddy,I was actually Flashing CWM on Galaxy Note N 7000(Jelly Bean 4.1.2,International version)when you sent me your last message!But I dont find any Root file for it,can you help me find it?
Thank you so much bro!
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Thank you so much everybody for helping me out,I really really appreciate it!
Hey sorry on the late response hope u found what u needed an glad we could help
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