Help Jelly Bean ROM - Galaxy S II Q&A, Help & Troubleshooting

Hello
I have no experience with rooting and ROMs, but i want to learn! I want to try jelly bean on my sgs2 and i am not sure where to start!
What guides and which ROMs would you recommend for a beginner?
Thank you!

first of all you have to be sure what model is your phone, exactly, like i9100 or i9100G or i9100T
then you have to flash a custom kernel that is already rooted, it must be for your phone and current android version. be careful with that or you can brick your phone, read a lot before doing any thing to your phone
then via custom recovery that is included on all custom kernels you can flash any JB rom compatible with your device
there are so much Jb custom roms you can try and see which is best for you
you can start with cm10 that is 4.1.2 jb rom
Sent from my GT-I9100G using xda app-developers app

I have model GT-I9100
Do you know of any good guides that I should read? It is pretty hard to find out which is relevant for me!
When you say CM10, should i install a clean one, or is it wise to get something like JellyBam? Should I expect it to be unstable and problematic?

Hi,
You can find all the information related to custom ROMs to your model here
And regarding Guides for S2, here.
Regards,
Hereticnine.

hereticnine said:
Hi,
You can find all the information related to custom ROMs to your model here
And regarding Guides for S2, here.
Regards,
Hereticnine.
Click to expand...
Click to collapse
you're faster!
Sent from my GT-I9100G

Thanks guys! I will sit down and read now!

Most importantly, I hope you're aware of the eMMC brickbug. If you haven't, now is as good a time as any to do so. Here: http://forum.xda-developers.com/showthread.php?p=28388184
Better safe than sorry. Good luck :thumbup:
Sent from my GT-I9100 using xda app-developers app

thanks for the warning! Pretty low on cash, so a ruined s2 would be disastrous!

wholmen said:
thanks for the warning! Pretty low on cash, so a ruined s2 would be disastrous!
Click to expand...
Click to collapse
flash Philz kernel for your rom and you will be good to go. it is stock based with hardbrick bug fixed.

Related

New to Galaxy S2

Hi Guys. I'm new to Galaxy S2 forum. Just got the phone today. So, what do I have to do? I have a few questions. Pls help me. Thanks!!
1. How do I root the S2?
2. Do I have to flash a new recovery, such as clockworkmod?
3. Is installing a ROM the same way as installing one on galaxy ace(my phone for today, last day)?
If you have other tips to tell me, please let me know!! Thanks and really appreciate your help!!
Sent from my GT-S5830 using xda premium
Stickies here.
First you need to now which kernel do you have, look here http://forum.xda-developers.com/showthread.php?t=1103399, choose kernel to match with yours, make sure usb debugging is on, extract kernel zip file, start odin, reboot you phone in download mode, connect phone, put kernel zip file in pda section, click start. After reboot you`ll have same rom but rooted and with cwm recovery. Now you can flash what rom you want
ace_viknesh said:
Hi Guys. I'm new to Galaxy S2 forum. Just got the phone today. So, what do I have to do? I have a few questions. Pls help me. Thanks!!
1. How do I root the S2?
2. Do I have to flash a new recovery, such as clockworkmod?
3. Is installing a ROM the same way as installing one on galaxy ace(my phone for today, last day)?
If you have other tips to tell me, please let me know!! Thanks and really appreciate your help!!
Sent from my GT-S5830 using xda premium
Click to expand...
Click to collapse
SINGLE most important thing you need to do is get off your lazy butt and do some reading, if you aren't willing to spend several several hours of reading BEFORE flashing anything or trying any modification to your phone, then you deserve the flamings that are coming your way, or better yet, you need to go buy you a little feature phone that you can't do anything to.
I think people should be given capacity tests before they are allowed to own a smartphone
Can you guys recommend very good ICS ROM / CM9 for the Galaxy S2?
Sent from my GT-S5830 using xda premium
Can you guys recommend very good ICS ROM / CM9 for the Galaxy S2?
NO .
jje
Crachel must be on his lunch break .
Sent from my GT-I9100T
No as in their are no very good ICS roms yet .
As opposed to NO search yourself you lazy b.
jje
JJEgan said:
Can you guys recommend very good ICS ROM / CM9 for the Galaxy S2?
NO .
jje
Click to expand...
Click to collapse
I would prefer Slim ICS (AOSP) with siyah kernel beta5, or just wait for the new version of Sensation ROM from Crysis21, as there aren't any good Samsung based ROMs.

I got I9100 & I9100G, I need best ICS ROM

Hello
my friend and his brother got SGS2 as a gift, sadly one is I9100 and the other I9100G, their father didn't know the variants of the device.
they both want ICS, what is the best for both devices?
thank you
http://forum.xda-developers.com/showthread.php?t=1612881
Your only option is to try them and see.
Mesho Arc said:
Hello
my friend and his brother got SGS2 as a gift, sadly one is I9100 and the other I9100G, their father didn't know the variants of the device.
they both want ICS, what is the best for both devices?
thank you
Click to expand...
Click to collapse
i can tell the best ics rom for i9100g but not for i9100 as i dont own one,flash this stock ics rom:http://www.sammobile.com/firmware/?page=3
then flash this kernel lp7 kernel through odin you can root too:http://forum.xda-developers.com/showthread.php?t=1679778
currently the best is stock rom only with rooted llp7 kernel
In my opinion the best ics rom for the s2 is resurection remix. It's incredibly fast and optimized, the installation super easy and.. Well it just works!
+ the xda thread is full of very knowledgeable people.
http://forum.xda-developers.com/showthread.php?t=1436854#
Sent from my GT-I9100 using xda premium
Just try them yourself. A good way to start is to sort the forum by "Stats".
Closed

Upgrading to XWLPi

I'm currently running XWLP7 firmware and there is an upgrade to xwlpi firmware.
The question I want to ask is, does anyone know anything about this firmware? I can't find any info on it at all.
Also does upgrading through mean I will lose things on my phone like Jkay framework and supercharger tweaks etc?
I've never upgraded through kies and don't know if this upgrade is worth it or not.
Any help/info would be great
Thanks in advance
If your using a Custom ROM then don't update via kies, you'll end up in a boot loop...and even if you aren't , from what I've read updating via kies isn't recommended+is the firmware 4.0.4?
Sent from my GT-I9100 using xda premium
UltimateAnas said:
If your using a Custom ROM then don't update via kies, you'll end up in a boot loop...and even if you aren't , from what I've read updating via kies isn't recommended+is the firmware 4.0.4?
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
Thank you for your reply,
I'm not actually sure what the upgrade is I assume it's 4.0.4 but it doesn't say. It's tells me it's:
PDA: xwlpi (which I can't find any info on) phone:xwlpx. And Csc: lp2
If it is 4.0.4 is there any point? Do you what thanges are from 4.0.3?
I'm running stock Lp7 rom but with Jkay framework and a few tweaks and mods.
Thanks for any help
From experience and what I have read, 4.0.4 is buggy and there is also the risk of the brick bug kernel so in my opinion its not worth upgrading, stay on 4.0.3 or use a custom ROM if you want 4.0.4 although there isn't much change!
Sent from my GT-I9100 using xda premium
UltimateAnas said:
From experience and what I have read, 4.0.4 is buggy and there is also the risk of the brick bug kernel so in my opinion its not worth upgrading, stay on 4.0.3 or use a custom ROM if you want 4.0.4 although there isn't much change!
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
cool, thanks for the advice. I'll stay with 4.0.3 and just wait for JB
UltimateAnas said:
From experience and what I have read, 4.0.4 is buggy and there is also the risk of the brick bug kernel so in my opinion its not worth upgrading, stay on 4.0.3 or use a custom ROM if you want 4.0.4 although there isn't much change!
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
-Yes, 4.0.4 has a brick bug on its kernel.
-Yes, it's not worth upgrading to it only for NOOBS who can't read or ask questions.
-presently, 4.0.4 is the most stable, fastest and smoothest stock ICS firmware for galaxy SII. I've tested and reviewed it myself
Swyped from my Samsung Galaxy SII
Jokesy said:
-Yes, 4.0.4 has a brick bug on its kernel.
-Yes, it's not worth upgrading to it only for NOOBS who can't read or ask questions.
-presently, 4.0.4 is the most stable, fastest and smoothest stock ICS firmware for galaxy SII. I've tested and reviewed it myself
Swyped from my Samsung Galaxy SII
Click to expand...
Click to collapse
Thank you for your reply.
I probably wont bother upgrading as 4.1 JB for the S2 is just around the corner.....
You say it's not worth upgrading, but then you say it's the most stable, smoothest and fasted stock firmware?
It seems a little contradictory to me.........
Obagleyfreer said:
Thank you for your reply.
I probably wont bother upgrading as 4.1 JB for the S2 is just around the corner.....
You say it's not worth upgrading, but then you say it's the most stable, smoothest and fasted stock firmware?
It seems a little contradictory to me.........
Click to expand...
Click to collapse
I said it's not worth upgrading four a NOOB who can read it follow simple instructions
For other people not in the above category, it's a must have.
Swyped from my Samsung Galaxy SII
In a way, he mean 4.0.4 is good, but you need to use a safe kernel instead of original samsung kernel, otherwise you're looking for trouble.
ksilver89 said:
In a way, he mean 4.0.4 is good, but you need to use a safe kernel instead of original samsung kernel, otherwise you're looking for trouble.
Click to expand...
Click to collapse
Cool I thought that's what he meant
I'll just hold tight for jelly bean then as I use the MHL output too much to use a custom kernel.
It's strange that Samsung have made kernels with the EMMC erase command. I wonder why they did that, there must be a reason, they're not stupid. Maybe they were trying to stop people playing around with the software..
Obagleyfreer said:
Cool I thought that's what he meant
I'll just hold tight for jelly bean then as I use the MHL output too much to use a custom kernel.
It's strange that Samsung have made kernels with the EMMC erase command. I wonder why they did that, there must be a reason, they're not stupid. Maybe they were trying to stop people playing around with the software..
Click to expand...
Click to collapse
From what I read, the EMMC_CAP_ERASE was introduced as a feature, but too bad it doesn't work well with the controller, and ended up corrupting the nand. Having said that, the way they continue to release the bad kernel to the public despite knowing the bug is a pretty bad move IMHO.
p/s: Opps, that "thanks" is free.
ksilver89 said:
From what I read, the EMMC_CAP_ERASE was introduced as a feature, but too bad it doesn't work well with the controller, and ended up corrupting the nand. Having said that, the way they continue to release the bad kernel to the public despite knowing the bug is a pretty bad move IMHO.
p/s: Opps, that "thanks" is free.
Click to expand...
Click to collapse
-Yeah, the kernel bug is bad but I'm not sure if it will brick the phone if factory reset is done in the phone and not via CWM.
-All the bricked devices reported / I've known for now, have been through factory reset or restoring backup via CWM recovery
Swyped from my Samsung Galaxy SII
Jokesy said:
-Yeah, the kernel bug is bad but I'm not sure if it will brick the phone if factory reset is done in the phone and not via CWM.
-All the bricked devices reported / I've known for now, have been through factory reset or restoring backup via CWM recovery
Swyped from my Samsung Galaxy SII
Click to expand...
Click to collapse
I said so because I read from this, better be safe than sorry.
Operations that are likely to cause damage when running an affected kernel:
Wiping in CWM (and likely any other custom recovery) (confirmed)
Restoring a Nandroid backup in CWM (wipes first)
Flashing another firmware in CWM (most flashes wipe first)
Wiping in stock 3e recovery (suspected, also wipes a partition)
Deleting large files when running an affected kernel (suspected but not confirmed)
Click to expand...
Click to collapse
source: http://www.xda-developers.com/android/hard-brick-bug-on-galaxy-s-ii-and-note-leaked-ics-kernels/
ksilver89 said:
I said so because I read from this, better be safe than sorry.
source: http://www.xda-developers.com/android/hard-brick-bug-on-galaxy-s-ii-and-note-leaked-ics-kernels/
Click to expand...
Click to collapse
Sure, it's better to be safe than sorry but the truth still remains, a regular user, who only format /reset his phone under SETTINGS-back up and restore will never hard brick his device while running stock 4.0.4.
Technically speaking, The main problem is not with the kernel but with some bad emmc chip in some phones (galaxy SII and note). We all know that some users still have normal emmc chip and will never brick their device even if they wipe in CWM recovery while running stock 4.0.4 kernel.
Swyped from my Samsung Galaxy SII

[Q] Can I flash a custom ROM ?

Hi All,
I'm new to this forum.
Currently I'm using my SGS II with ICS Stock (4.0.4) upgraded through Samsung Kies (hope it clears that I've stock ROM).
My Baseband version : I9100DDLPB
Kernel Version : 3.0.15-1056084 [email protected] #3 SMP PREEMPT
Build Number : IMM76D.XWLPW
I've recently rooted my phone to flash the custom ROM.
But today i checked some posts from this forum that, flashing a SGS II running on Stock 4.0.4 may brick the handset here.
I read the complete post and got very much disappointed that I couldn't flash any custom ROM from my Stock ROM, but lastly I looked over the firmwares which have these emmc bug and found that my device is not in the list.
So with this information can anybody tell me whether I can go for flash the custom ROM ? or do I need to flash a new Kernel ? :angel:
Thanks,
Hereticnine.
If it's not listed as an 'insane chip' (affected by the emmc bug then it should be safe to wipe. But if you're gonna be flashing a custom ROM eventually,you may as well flash a custom kernel now itself. Just to be completely safe, ya know?
Sent from my GT-I9100 using xda app-developers app
install eMMC Check from Play Store, and see whether you have a faulty chip
Sent from my GT-I9100 using xda app-developers app
My Bad !!!!
Just now checked with an app available on Google Play, eMMC Brickbug Check and got the result as "Insane Chip".
Also tried with Got Brick bug found in this forum. It also said the same like DANGER !!! :crying: :crying:
So I think, customization is over for me !!!! I should stay out from flashing ROMs.
And HAXTREME, Thanks for the reply.
Thanks,
Hereticnine.
Flash a safe kernel which has MMC_CAP_DISABLED (e.g. siyah kernel) on your rom with odin. You will get yellow triangle but you can remove it later with triangle away if you want to
From that point on you can flash any custom rom you want or or do a wipe from cwm...
Key is making sure you're running a safe kernel all the time, then you should have no problems, as long as you flash roms which are compatible with I9100 international version
Lamien said:
Flash a safe kernel which has MMC_CAP_DISABLED (e.g. siyah kernel) on your rom with odin. You will get yellow triangle but you can remove it later with triangle away if you want to
From that point on you can flash any custom rom you want or or do a wipe from cwm...
Click to expand...
Click to collapse
So, there wouldn't be any problem if I flash with siyah kernel, Am I correct ? Or should I wait for some update from Samsung on fixing this bug.
Thanks,
Hereticnine.
hereticnine said:
So, there wouldn't be any problem if I flash with siyah kernel, Am I correct ? Or should I wait for some update from Samsung on fixing this bug.
Thanks,
Hereticnine.
Click to expand...
Click to collapse
Correct.
I would not wait for Samsung fixing anything in regards of this matter. The community has brought this huge issue to their attention long time ago and nontheless they released / keep releasing (?) dangerous updates to their customers!
Elite Recognized Developer "Entropy512" has written a very interesting (and long!) story of his experiences with Samsung:
https://plus.google.com/u/0/101093310520661581786/posts/cdPnNjLAb4F
hereticnine said:
So, there wouldn't be any problem if I flash with siyah kernel, Am I correct ? Or should I wait for some update from Samsung on fixing this bug.
Thanks,
Hereticnine.
Click to expand...
Click to collapse
No problems flashing siyah because emmc bug is disabled.
AS to an update from Samsung I do not believe there will be one as they are releasing Jellybean by the endof the year,
JB uses a totally different file structure.
Cosmic Blue said:
No problems flashing siyah because emmc bug is disabled.
Click to expand...
Click to collapse
Dorimanx is safe too
Sent from my Nexus 7 using xda premium
Thank you All for your replies.
I've downloaded the latest Siyah Kernel, I'll try to flash it and hope it goes without any issues.
Please tell me if I need to take care of anything else while flashing Siyah Kernel.
I did the nandroid backup & took all other back ups using Titanium.
Hope it suffices for flashing.
Thank you.
Regards,
Hereticnine.
Well, about the brick bug, I just know there's a app to detect the chip and unfortunately my phone has the insane chip. but if I'm not mistaken I've been wiped my phone several times with 4.0.4 stock kernel before yet it's still safe till now, it's the checker or I'm just being lucky? but nevermind there's leaked 4.1.2 now haha..
andiprbwo said:
Well, about the brick bug, I just know there's a app to detect the chip and unfortunately my phone has the insane chip. but if I'm not mistaken I've been wiped my phone several times with 4.0.4 stock kernel before yet it's still safe till now, it's the checker or I'm just being lucky? but nevermind there's leaked 4.1.2 now haha..
Click to expand...
Click to collapse
AFAIK the brick bug is non-deterministic. So you could wipe data several times without a problem n suddenly one time you try it n your phone is a rather expensive paperweight. If your phone indeed has an 'insane chip' count yourself lucky and don't risk it too often.
Sent from my GT-I9100 using xda app-developers app
HAXTREME said:
AFAIK the brick bug is non-deterministic. So you could wipe data several times without a problem n suddenly one time you try it n your phone is a rather expensive paperweight. If your phone indeed has an 'insane chip' count yourself lucky and don't risk it too often.
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
well, yeah after I read some thread about it I won't ever do that stupid things again
hereticnine said:
Hi All,
I'm new to this forum.
Currently I'm using my SGS II with ICS Stock (4.0.4) upgraded through Samsung Kies (hope it clears that I've stock ROM).
My Baseband version : I9100DDLPB
Kernel Version : 3.0.15-1056084 [email protected] #3 SMP PREEMPT
Build Number : IMM76D.XWLPW
I've recently rooted my phone to flash the custom ROM.
But today i checked some posts from this forum that, flashing a SGS II running on Stock 4.0.4 may brick the handset here.
I read the complete post and got very much disappointed that I couldn't flash any custom ROM from my Stock ROM, but lastly I looked over the firmwares which have these emmc bug and found that my device is not in the list.
So with this information can anybody tell me whether I can go for flash the custom ROM ? or do I need to flash a new Kernel ? :angel:
Thanks,
Hereticnine.
Click to expand...
Click to collapse
Just flash PhilZ kernel .. Its totally safe .. Just download the right kernel and flash it through stock recovery and it would be fine
Sent from my GT-I9100 using Tapatalk 2
GALicer evening
kilometers4 said:
Dorimanx is safe too
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
Hi kilometers4,
Thanks for the information, can you please share me the link, where can I get this kernel latest version for S2 ?
Thanks,
Hereticnine.
Yipee !!
Today I flashed PhilZ Kernel & later tried Dorimanx Kernel too.
I like the Dorimanx kernel, it has several options.
BTW, how can I check / ensure that I'm free from Brickbug now ??
Regards,
Hereticnine.
hereticnine said:
Yipee !!
Today I flashed PhilZ Kernel & later tried Dorimanx Kernel too.
I like the Dorimanx kernel, it has several options.
BTW, how can I check / ensure that I'm free from Brickbug now ??
Regards,
Hereticnine.
Click to expand...
Click to collapse
you will never be totally free of the brick bug, since it is embedded in the kernal. Developers of Philz, Dorimanx and others have edit the code that cause the brick bug to disable it.
When flashing avoid using any stock kernal from 4.0.4 and above to avoid the embedded brick bug software.

[SOLVED] I bricked my phone..urgent help needed please..

I updated my sgs2 officially yesterday from ICS to jellybean 4.1.2...it was working good but I lost root...I searched the web to root it again and foung this website..
http://galaxys2root.com/galaxy-s2-root/how-to-root-galaxy-s2-gt-i9100-jelly-bean-android-4-1-14-1-2/
I successfully rooted it but to my bad luck I tapped on the supersu as mentioned in the video demonstration at the website and things went wrong..the supersu asked me whether to start normally or CWM recovery, I opted for CWM recovery...Now my phone is stuck at the yellow triangle..I can go to download mode only...I reflashed the same kernel but in vain...
Please help me to recover my phone as I need it badly...many thanks in advance.
Let me tell you that I leave in middle east and as I remeber it was updated to XXls8 or something.
Re: I bricked my phone..urgent help needed please..
You can go to internet search for a rom to flash using odin
Sent from my GT-I9100 using xda app-developers app
benhu said:
You can go to internet search for a rom to flash using odin
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
thanks benhu but what should I search for? which ROM?
Search for a stock rom
Re: I bricked my phone..urgent help needed please..
Search on sammobile.com
Sent from my HTC One X
mhoss48 said:
Search on sammobile.com
Sent from my HTC One X
Click to expand...
Click to collapse
But I didn't install any custom ROM..I only install custom kernal for rooting..Do I still need a stock ROM to flash? I need further help...and how to flash again?
Thanks everybody who is helping.
mirchichamu said:
But I didn't install any custom ROM..I only install custom kernal for rooting..Do I still need a stock ROM to flash? I need further help...and how to flash again?
Thanks everybody who is helping.
Click to expand...
Click to collapse
Odin flashes stock ROMs and kernels.
Re: I bricked my phone..urgent help needed please..
STRONGLY RECOMMEND YOU to flash SUPERNEXUS 2.0 it is stable
Sent from my GT-I9100 using xda premium
pakhei123 said:
STRONGLY RECOMMEND YOU to flash SUPERNEXUS 2.0 it is stable
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
Do you recommend to flash this rom instead of stock rom? But where from download? And how to flash?
Go back to stock first; it will give you a 'clean slate'. Getting your phone working normally/usable should be your only priority/thought at this stage. You can worry about flashing other roms/kernels once you've done that.
MistahBungle said:
Go back to stock first; it will give you a 'clean slate'. Getting your phone working normally/usable should be your only priority/thought at this stage. You can worry about flashing other roms/kernels once you've done that.
Click to expand...
Click to collapse
Thanks MistahBungle for your help. From where I should download stock rom and how to flash? Further help will be much appreciated.
Search Samfirmware for an unbranded one for your country (or a carrier-specific one if you prefer/if there isn't an unbranded one). Guides/tutorials are stickied in the General section (3rd post from the top from memory).
MistahBungle said:
Search Samfirmware for an unbranded one for your country (or a carrier-specific one if you prefer/if there isn't an unbranded one). Guides/tutorials are stickied in the General section (3rd post from the top from memory).
Click to expand...
Click to collapse
Thanks a lot MistahBungle and all who supported me...Thanks God I finally reflashed stock ROM which I downloaded from Samfirmware and it is working well.
May I request all those geeks to guide me to root the easiest way. Further I will request you people to tell me the Best ROM which support RTL...Bundle of thanks.
Good man. You're welcome Easy way to root is to flash the Odin version of any custom kernel which works with Android version of the stock rom you're currently running (Siyah & Dorimanx are but two, there are others); read the thread devoted to the particular kernel you want to flash to work out which build you need to use. Once you flash it you'll have a rooted phone with CWM.
'Best rom' threads are not allowed here; once you have CWM installed it's really easy to flash/try a bunch of roms & find one you like, it takes 5 minutes to backup or restore, if you find you don't like a rom you try, it's easy to go back to your previous setup & try another. Generally if you need things that are a 'bit fiddly' to 'just work' without dramas, you're better off sticking with stock. But you can check the threads of various custom roms to see if they support the features you need to use. You could always dual boot if the particular features you want to use only work with stock, yet you like a particular custom rom & want to use it as a daily driver.
Re: I bricked my phone..urgent help needed please..
And one more thing...
Please add [SOLVED] to the title of ur post so that others with similar problems can get help too..
"To err is human, to forgive is divine"
Sent from my SGS II

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