Custom rom? - Galaxy S II Q&A, Help & Troubleshooting

When i install a custom rom will my phone automatic be rooted?
If not if i root my phone can i unroot it?
And if i install a custom rom. How can i install the normal rom again?
Thank you.

Shai38 said:
When i install a custom rom will my phone automatic be rooted?
Not unless the custom rom contains root .
If not if i root my phone can i unroot it?
Yes by flashing a stock firmware or kernel and resetting the custom rom counter to zero .
And if i install a custom rom. How can i install the normal rom again?
By flashing a stock rom
You need to start reading before flashing .
FAQ
http://forum.xda-developers.com/showthread.php?t=1065995
NEW HERE
http://forum.xda-developers.com/showthread.php?t=1134290
Guide
http://forum.xda-developers.com/showthread.php?t=1125282
Stock Roms .and csc
http://forum.xda-developers.com/showthread.php?t=1075278
Root + CWM .
http://forum.xda-developers.com/showthread.php?t=1103399
Custom Rom Counter .
http://forum.xda-developers.com/showthread.php?t=1068522
better battery stats .
http://forum.xda-developers.com/showthread.php?t=1179809
jje
Click to expand...
Click to collapse

phone needs to be rooted before you flash a custom rom.
have a read through the developer section and all the answers for your other questions will be answered.
first steps first though - read chainfires root and clockwork recovery thread first to see what tools you need and follow the guide to the letter - no exceptions!
.................lol or as above from JJEgan

Typically you will need to root your phone before you install a custom rom, and yes you can easily unroot. There are several guides in the development section to help you. Make sure you read thoroughly and understand what you're doing.
Sent from my GT-I9100 using Tapatalk

Read the FAQs in this sticky roll up http://forum.xda-developers.com/showthread.php?t=1442549 and most of your questions will be answered.
Custom roms are flashed via cwm and stock are flashed by Odin. Most custom roms are pre rooted.
Sent from my GT-I9100 using Tapatalk

I cant find this firmware original for this one:
I9100BOKJ1
I9100BOKJ2-CL635147
Thanks.

Pick the nearest for your location .
or look in the provider roms post .
Carrier branded .
http://forum.xda-developers.com/showthread.php?t=1113928
jje

I need one from Holland (Netherlands) Can you help me wich one to pick?
Shai

CE versions are netherlands .
jje

JJEgan said:
Pick the nearest for your location .
or look in the provider roms post .
Carrier branded .
http://forum.xda-developers.com/showthread.php?t=1113928
jje
Click to expand...
Click to collapse
JJEgan said:
CE versions are netherlands .
jje
Click to expand...
Click to collapse
I want one without carrier just a clean phone firmware

http://forum.xda-developers.com/showthread.php?t=1075278
I hope this works for you.

Related

[Q] Some guidance please re: firmware.

Hello:
WARNING: I am a complete newbie and know nothing about 'flashing' or 'rooting'.
From a previous post, I learned that I should download "GT-I9100_XEU_I9100XWKJ1_I9100XEUKH2_I9100XXKI3.exe" to change my firmware from Spainish to something Canadian. I have it downloaded now.
I also read that I should have Kies installed, due to the drivers that it contains, but not 'running' in any way. I installed Kies but it will not connect to my phone - maybe because of my spanish firmware? Does this matter or is just having its drivers installed the important thing?
Is there a tutorial about how I should proceed? Do I need to 'root' my phone first? Do I need additional software?
Sorry for my confusion but I am really unsure as to how to proceed?
Thanks,
Rob. (proud owner of a $700 paper-weight)
GT-I9100_XEU_I9100XWKJ1_I9100XEUKH2_I9100XXKI3.exe
XEU i would want to confirm that works in North America .
Guide
http://forum.xda-developers.com/showthread.php?t=1125282
Stock Roms .and csc
http://forum.xda-developers.com/showthread.php?t=1075278
Root + CWM .
http://forum.xda-developers.com/showthread.php?t=1103399
Root faqs
http://forum.xda-developers.com/showthread.php?t=1246131
jje
JJEgan said:
GT-I9100_XEU_I9100XWKJ1_I9100XEUKH2_I9100XXKI3.exe
XEU i would want to confirm that works in North America .
Guide
http://forum.xda-developers.com/showthread.php?t=1125282
Stock Roms .and csc
http://forum.xda-developers.com/showthread.php?t=1075278
Root + CWM .
http://forum.xda-developers.com/showthread.php?t=1103399
Root faqs
http://forum.xda-developers.com/showthread.php?t=1246131
jje
Click to expand...
Click to collapse
How do I find the correct firmware for NA?
there is no correct firmware for NA, any stock firmware will work on your phone as one of the stock languages is us english.
Flash KK2/KK5.
Sent from my GT-I9100 using XDA App
hi
all the firmware are here:
http://forum.xda-developers.com/showthread.php?t=1075278
last one is xwkk2. download it to pc. then download odin. the post from intratech is very good and explain every step u need to do as i was a rookie too.
follow that post.
pissyhun said:
hi
all the firmware are here:
http://forum.xda-developers.com/showthread.php?t=1075278
last one is xwkk2. download it to pc. then download odin. the post from intratech is very good and explain every step u need to do as i was a rookie too.
follow that post.
Click to expand...
Click to collapse
thank u very much for this. the firmwares are really up-to-date.

Unroot Galaxy s2

hello guys,
sorry for this stupid question but how can i unroot my s2?
please answer!! and give all steps (yes i'm a noob)
jonas9 said:
hello guys,
sorry for this stupid question but how can i unroot my s2?
please answer!! and give all steps (yes i'm a noob)
Click to expand...
Click to collapse
A search as its a very very stupid question .
B flash stock rom or stock kernel via Odin and reset custom rom counter .
Stock Roms .and csc
http://forum.xda-developers.com/showthread.php?t=1075278
C reading the stickies faqs and guides .
jje
JJEgan said:
A search as its a very very stupid question .
B flash stock rom or stock kernel via Odin and reset custom rom counter .
Stock Roms .and csc
http://forum.xda-developers.com/showthread.php?t=1075278
C reading the stickies faqs and guides .
jje
Click to expand...
Click to collapse
how to reset custom rom counter?
With a jig. Do a search on eBay for "Samsung Galaxy S2 jig". Costs ~$3.
jonas9 said:
how to reset custom rom counter?
Click to expand...
Click to collapse
jonas9 said:
how to reset custom rom counter?
Click to expand...
Click to collapse
And also refer to JJEgan's answer "A".
If the jig doesnt work its because you need to flash the old bootloader.Newer firmwares have the non-wipe bootloader (2.3.5 and above I think) so flash this in PDA without selecting anything else.Just hit start.But only if you need it.
http://www.multiupload.com/LQQBRQVJUD

[Q] galaxy s 2 ICS update

i have mistakenly updated US ICS firmware on my UK galaxy s 2( GT.I9100) and since than it is crashing and draining my battery,alongwith some issues with activating wi-fi..............any solutions plzzzzz????
doc.zeus said:
i have mistakenly updated US ICS firmware on my UK galaxy s 2( GT.I9100) and since than it is crashing and draining my battery,alongwith some issues with activating wi-fi..............any solutions plzzzzz????
Click to expand...
Click to collapse
One restore your original Nandroid backup.
Two flash your original saved GB firmware.
Three flash your original firmware from the stock rom threads .
Or a bit of a read would find Stock UK ICS roms in the general thread .
Stock Roms .and csc
http://forum.xda-developers.com/showthread.php?t=1075278
FAQ
http://forum.xda-developers.com/showthread.php?t=1065995
NEW HERE
http://forum.xda-developers.com/showthread.php?t=1134290
bible
http://forum.xda-developers.com/showthread.php?t=1473577
Guide
http://forum.xda-developers.com/showthread.php?t=1125282
jje
here's a link for latest ICS (Mid April 2012), UK SIM free upgradable via Kies.
I9100XWLP7 ICS 4.0.3
http://www.hotfile.com/dl/153177481/9861a3a/I9100XWLP7_I9100XEULP5_XEU.zip.html
or if u want and older version and update it using Kies,
I9100XWKE7 Gingerbread 2.3.3
http://hotfile.com/dl/145753462/48f885b/I9100XWKE7_XEUKD1_XXKE4.zip.html
@jje
thanx for your help....lol...but i donot have any back up and i m nt this techy, so having problem understanding ur solution...tho i really appreciate ur help..hope u dont mind if u can simplify it or juss give me a step by step tutorial
@svarma
thnx for your help...i have downloaded the file u have mentioned but how can i use it with kies????
doc.zeus said:
thnx for your help...i have downloaded the file u have mentioned but how can i use it with kies????
Click to expand...
Click to collapse
You cant use it with KIES. You will need to use odin to flash it. Use the step by step guide with screen shots in the first post of this thread to find out how to flash it using odin:
http://forum.xda-developers.com/showthread.php?t=1075278
FAQ
http://forum.xda-developers.com/showthread.php?t=1065995
NEW HERE
http://forum.xda-developers.com/showthread.php?t=1134290
bible
http://forum.xda-developers.com/showthread.php?t=1473577
Guide
http://forum.xda-developers.com/showthread.php?t=1125282
Stock Roms .and csc
http://forum.xda-developers.com/showthread.php?t=1075278
Root + CWM .
http://forum.xda-developers.com/showthread.php?t=1103399
jje

[Q] Install stock ICS

How can I install the stock ICS update on the S2 without rooting? I know it is available as an OTA but I don't get it here in Malta. I tried to pass the phone over a proxy but it did not work.
Thanks!
cachiama said:
How can I install the stock ICS update on the S2 without rooting? I know it is available as an OTA but I don't get it here in Malta. I tried to pass the phone over a proxy but it did not work.
Thanks!
Click to expand...
Click to collapse
Flashing via Odin does not require root.
Go to google and type Galaxy S2 stock roms. You will find a thread in xda or androidforums both are fine.You download them, in the both threads you will find detail instructions on how to flash it.
When you download a rom make sure it is the latest version [ for gb 3.7 I think ] and it should have a stock kernel.
If you want to stick to the stock kernel but you want to be rooted you flash CF root for your rom.
But flashing a custom rom makes absolutely no-sense whatsoever.
If you cant find a stable rom you can try GadgetCheck's Revolution rom.
It is really stable with no bugs, and the DarkKnight kernel is their project which is considered as the best GB kernel by me.
Good luck.As the guy mentioned, you flash custom roms with Odin, you dont need to be rooted.
Coltie said:
Go to google and type Galaxy S2 stock roms. You will find a thread in xda or androidforums both are fine.You download them, in the both threads you will find detail instructions on how to flash it.
When you download a rom make sure it is the latest version [ for gb 3.7 I think ] and it should have a stock kernel.
If you want to stick to the stock kernel but you want to be rooted you flash CF root for your rom.
But flashing a custom rom makes absolutely no-sense whatsoever.
If you cant find a stable rom you can try GadgetCheck's Revolution rom.
It is really stable with no bugs, and the DarkKnight kernel is their project which is considered as the best GB kernel by me.
Good luck.As the guy mentioned, you flash custom roms with Odin, you dont need to be rooted.
Click to expand...
Click to collapse
WARNING THIS REPLY IS WRONG IN MANY RESPECTS .
Stock Roms .and csc
http://forum.xda-developers.com/showthread.php?t=1075278
Or use CHECKFUS to download and flash via ODIN .
Kernel is part of the firmware and not a separate item .
You rarely flash a custom rom with ODIN .
EW HERE
http://forum.xda-developers.com/showthread.php?t=1134290
bible
http://forum.xda-developers.com/showthread.php?t=1473577
Guide
http://forum.xda-developers.com/showthread.php?t=1125282
jje
JJEgan said:
WARNING THIS REPLY IS WRONG IN MANY RESPECTS .
Stock Roms .and csc
http://forum.xda-developers.com/showthread.php?t=1075278
Or use CHECKFUS to download and flash via ODIN .
Kernel is part of the firmware and not a separate item .
You rarely flash a custom rom with ODIN .
EW HERE
http://forum.xda-developers.com/showthread.php?t=1134290
bible
http://forum.xda-developers.com/showthread.php?t=1473577
Guide
http://forum.xda-developers.com/showthread.php?t=1125282
jje
Click to expand...
Click to collapse
The only wrong thing in this post, is that I have written a custom rom instead of stock.
Coltie said:
The only wrong thing in this post, is that I have written a custom rom instead of stock.
Click to expand...
Click to collapse
When you download a rom make sure it is the latest version [ for gb 3.7 I think ] and it should have a stock kernel.
>>> Does not have to be the latest version +all firmware has a kernel.
>>>>>>> CF root replaces the stock kernel with non stock warranty voiding kernel .>>>> But flashing a custom rom makes absolutely no-sense whatsoever.
That reply is both ignorant and stupid .
>>>and in the next sentence try Gadgets custom rom ???
Over to you Mr T
jje

Vodafone roms questions

Hey.
I really want to install a few roms (also yet to root ) but I'm nervous as it's my first Samsung.
Baseband: I9300BULF1
Build Number: IMM76D.I9300BUALF1
These don't seem to match anything on the forum so can someone comment.
Thanks in advance.
Sent from my GT-I9300 using XDA
benny6812 said:
Hey.
I really want to install a few roms (also yet to root ) but I'm nervous as it's my first Samsung.
Baseband: I9300BULF1
Build Number: IMM76D.I9300BUALF1
These don't seem to match anything on the forum so can someone comment.
Thanks in advance.
Those numbers are not what you want .
http://forum.xda-developers.com/showthread.php?t=1671969
Stock roms and some carrier branded roms .
ROOT.
http://forum.xda-developers.com/showthread.php?t=1695238
jje
Click to expand...
Click to collapse
JJEgan said:
benny6812 said:
Hey.
I really want to install a few roms (also yet to root ) but I'm nervous as it's my first Samsung.
Baseband: I9300BULF1
Build Number: IMM76D.I9300BUALF1
These don't seem to match anything on the forum so can someone comment.
Thanks in advance.
Those numbers are not what you want .
http://forum.xda-developers.com/showthread.php?t=1671969
Stock roms and some carrier branded roms .
ROOT.
http://forum.xda-developers.com/showthread.php?t=1695238
jje
Click to expand...
Click to collapse
Hey,
Thanks for the reply.
Could you please further explain.
The most recent update isn't on the list I saw.
Can I simply flash another STOCK rom so that I have a revision number that is common, e.g. XXALF2
Will that root site you linked work for any revision, including the one I have above??
Please be really specific as I really want to root just a little worried.
Ben
Click to expand...
Click to collapse
BUMP, any advice please
If its international version you can flash any stock rom you want .
major differences may be one language also modem and CSC file for local network auto setup .
Custom roms the same .
ROOT.
http://forum.xda-developers.com/showthread.php?t=1695238
Stock Roms
http://forum.xda-developers.com/showthread.php?t=1671969
Custom roms
http://forum.xda-developers.com/forumdisplay.php?f=1566
There are a number of basic FAQS and Guides in the SGS2 forum that explain the basics . Most apply to SGS3 as well .
jje

Categories

Resources