Database Develop

New to rooting

I have a Samsung i9000 which I have rooted with super one click details of my phone are:
Model: GT-I9000
Firmware: 2.3.5
Baseband: I9000NEJVB
Kernel: 2.6.35.7-I9000NEJVK-CL649158 [email protected] #2
Build No.: GINGERBREAD NEJVK
My question is this Can I flash this phone with any kernel or does it have to be specific to any of the numbers above (which I do not know what they mean) and if it does have to be specific could someone please tell me which kernel/s are compatible
Many thanks in advance
Sent from my GT-I9000 using Tapatalk 2

If you want root with proper CWM recovery you will most likely need to flash a kernel with Odin.
SuperOneClick gives you root for things like apps but you generally still have 3e recovery and you end up with signature failure whenever you try flash something from CWM.
In terms of kernels the easiest one which is closest to stock is CF-Root.
http://forum.xda-developers.com/showthread.php?t=788108
You generally want the same cf-root kernel as the last three digits of where it says gingerbreadxxx.
The rest of the instructions are in the first couple of posts. Fairly long but if you just read it slowly and go step by step its fairly easy.
Once you have flashed this you should have the correct recovery to flash other kernels & custom roms.
NB: Before you start all of this make sure to back up your phone. I would recommend connecting phone to pc & copying entire internal sd card straight to a folder on your pc. Also make sure to back up EFS folder. This is where your EMEI number is stored and you will want this if something goes wrong.
From Cyanogenmod Galaxy S wiki page:
Before you do anything — Make a backup
Don't forget to back up your data. If you have synced the device with a Google account, then the contacts, calendar, Gmail, & select other Google-related data will not be lost and will come back after the next sync. However, you should backup anything you want to keep that is not stored on the SD card:
SMS/MMS messages, Call Log, Bookmarks, Applications; use Titanium Backup or the Astro File Manager, for example, Any application data not on the SD card.
It would also be a good idea to backup everything stored on the SD card in the rare case the SD card must be formatted to resolve any major problems.
MyBackup Root, SMS Backup & Restore, and Call Backup & Restore are all free applications that can assist with backing up your data.

Hi, welcome to XDA man
Firstly everything scubadude said above is fairly important
Secondly; well it really depends on what you're looking for mate. If you just wanna upgrade your kernel (and by the sounds of it you dont really know what a kernel is, or what it does) then flashing a kernel only does so much on a standard rom. Flashing CF root kernel gives you proper root for root apps and clockworkmod (CWM) recovery so you can flash addons and suchlike.
However people usually root their phones so they can install a custom rom, which can improve speed, battery life, functionality and a ton of other things, and that's when people start looking around for different kernels which complement their current rom.
Just wanting a kernel with your stock rom doesn't make a whole load of sense. A ROM is what'll improve your phone.
If you want all the benefits of rooting, i'd suggest looking for a new ROM and flashing that.
If you're unsure of what rom to flash, read around in the i9000 development forum and read through different roms features. You could flash an android 2.3.X rom which would be a gingerbread (GB) rom or an android 4.0.X rom which would be an ice cream sandwich rom (ICS)
Dont ask which is the best rom for GB or ICS please, there are a billion threads like it, and it always comes down to this; read around, look at the features each rom gives, look at any bugs they may have (ICS roms probably have a few bugs here and there where most GB roms are completely stable) and decide if said ROM is good for you.
If you want a very stable, very fast, decent battery life and easy to flash GB rom then i'd suggest Gamerzrom. I'm running it atm.
However the dev stopped developing for it, but i can link you to ALL the files you need to flash the rom and a set of instructions if you'd like. I have a copy of all of them because i flash new roms but i usually go back to it anyway.
Definitely read the development section, you'll find something that sounds good for you.
Oh and for your information;
ICS > GB
and for GB firmwares, in order from newest to oldest, all 2.3.6 firmwares;
JW5>JW4>JVU>JW1
(those last two may be mixed up)
Most GB roms are on 2.3.6 now so it helps to know the above.

Thanks for the reply guys very much appteciated
Sent from my GT-I9000 using Tapatalk 2

No problemo, just hit thanks please

I think Gamerzrom is still being developed but it has been moved to another forum. Technorumor blog.
If you want a list of ICS ROMS & Kernels check this thread out.
http://forum.xda-developers.com/showthread.php?p=24536220#post24536220
For a fairly thorough ICS benchmark thread check this out.
http://forum.xda-developers.com/showthread.php?t=1554621
For modems check out this thread:
http://forum.xda-developers.com/showthread.php?t=1158783
As mentioned there are plenty of threads out there asking about ROMS & for every ROM there are going to be people that tell you the one they are using is best. If you are going ICS there is a nice easy tutorial here.
It is for Team ICSSGS. It is an older ICS ROM but development has been slow lately so while it is still good it is running ICS 4.0.3 while the newer ROMS are all on ICS 4.0.4. Having said that it is still a great tutorial & rom to get you started. It goes right from all the files you need, to getting a stock rom in case things fail to flashing ICS. Once you done everything in this tutorial you will be in a good position to start flashing & testing roms to find the one you like.
Oh yes if we have helped hit thanks.

Root is essential if want access to the system of your phone(elusive folders).
Then u can tweak kernel(eg.voltage control or mc tweaker)and improve GPS(GPS aids) or backup your apps and settings with titanium backup.all these are apps u can download from android market.
These are good reasons to root your phone.
If u flash cf-root kernel u will have many options to tweak your phone,because it support init-d(all custom kernel's support this).like supercharger v6 or thunderbolt tweaks this will improve your phone greatly.but u need to READ a lot before going down this road.
Anyway good luck and don't be afraid to root.

ok i think i may have screwed up my phone i flashed the cf-root kernel and phone rebooted. it has now been stuck on the boot animation for an age( blue flashing android word) is there a way of getting it back to stock nejvb. please help this is my only mobile

sorted it thank god found threes firmware etc.

Glad it's sorted
Sent from my GT-I9000 using Tapatalk 2

Go to settings/about phone and check your build,then go to cf-root thread and find a kernel that matches your build and flash that.
But make sure that it's the i9000 thread and not the i9100.
There is a MOBILE ODIN,that is quite easy to operate. If u already got root u can flash almost anything.search for it, it's made by chainfire(cf-root, yep same guy)
But u need root to operate

time to do my rom
ok managed to flash my kernel with the cf-jvb kernel. what i would like to know now is "can i now just flash a rom, and could u explain what a modem is and do i need one or is it included in the rom" i am wanting to speed up my i9000 so could someone suggest a stable GB or ICS rom.
many thx in advance for all your help so far

I have just noticed that this new kernel will not allow Wi-Fi connection it will turn on, scan, wont find my connection and then turn its self off. Have I done something wrong or is it just the kernel that doesn't allow it?
Sent from my GT-I9000 using Tapatalk 2

According to your opening post. Your build is jvk not jvb. Jvb is your baseband. Which you change depending on where in the world you live, it will make your phone have a strong signal. For example my build is jw5 so I use a root made for jw5. I use kg3 as my baseband because it is the stock bell Canada modem and gives the best signal. Root with jvk not jvb. Gl
Sent from my GT-I9000 using xda premium

[Q] ROMs Boot loop every time I flash them.

I've been trying to Change the ROM in my phone all day and I've had no luck.
I first tried Slim Bean and that worked no problems BUT...
I had a blank IMEI which means I cannot make calls and I also learnt that you can't go from GB to JB, you need to go in steps of each ICS
I think If I go back to 2.3.3, copy or back up the /efs files or something then go back to Slim Bean then copy them that MIGHT work but I haven't tried it.
[Would be nice if SlimROMs just kept Play Store in the Rom, it would make things easier but they don't call it slim for no reason!]
So I went back to 2.3.3 using an Ezbase Recovery and I've been trying to Install ICS ROMs and they have ALL failed when installing causing a boot loop.
I've tried Cyanogen 9, 9.1.0, Slim ICS and a few other I cannot remember.
Is their something I am missing? a certain kernel? Need to upgrade to 2.3.6?
I really just want to get to Jelly Bean, I've tried it first hand Via SlimROM and it's like BUTTER but It's useless at the moment if I cannot get my IMEI or network provider showing up.
Thank you in advance.

TheProfessionalIdiot said:
I've been trying to Change the ROM in my phone all day and I've had no luck.
Click to expand...
Click to collapse
ok, for upgrades from GB to ICS, you need a 2.3.6 bootloader, you can use Ezboot without changing ROM ( link in My Android collections) and a CWM by flashing a semaphore kernel. Here you backup your EFS.
In ICS ( follow guide by developer of your chosen ROM) , you may need to flash twice, as first flash may give you boot loops

Worked like a charm.
You've been so helpful since I joined XDA.
I wish I had money to spare for the help but I massive thanks is all I can give at the moment!

[Q] Android jellybean 4.1 / 4.2?

Hello developers from XDA!
I have three questions that I was hoping you guys could answer.
First off, I own a Samsung Galaxy S GT i9000 and I'm currently running on 2.3.6 gingerbread XXJVU rooted.
I have been searching EVERYWHERE for a stable jellybean 4.1.2 ROM for my phone, but there are so many and the instructions are very complicated, resulting me into not really understanding how to flash it..
I have earlier tried to flash and ICS ROM which hugely failed. Flashing the stock rom & rooting it went succesfully, but after trying to install the rom from the recovery menu it didn't work. The result was that it was taking nearly up to an hour to start up. I had taken the battery out the phone and restarted before I waited so long. (Yes, believe it, or not. I have seriously waited an hour for it to start up. It just didn't want to.)
So my questions:
Do any of you from XDA developers know a STABLE jellybean rom which has most of the features available? For instance; calling, SMS, Wi-Fi, 3G, Play Store, USB acces etc.
I've heard that "Cyanogenmod 10" was a good one..
Second question is: IF any of you could provide me with a link to a rom (hopefully as I mentioned before Cyanogenmod 10) can you please provide a link with instruction on how to flash it? I really don't want to spend around 30 minutes to find out what I must do.
Also, I've heard that it's not a good idea to go from 2.3.6 to 4.1.2 instantly. I actually want to take the chances and go to Jellybean instead of first flashing and ICS rom.
And as for my last question: I will of course do a nandroid backup in recovery. But, if the jellybean rom fails to flash will I still be able to use that backup? As I mentioned before, I failed flashing an ICS rom. But when I did my recovery menu changed? It went from ClockWorkMod to a different one with a different colour. I haven't really looked at the backup files in the new recovery menu, but if I flash the jellybean mod I assume my recovery menu will change from CWM to CM, and resulting (I think) removing the backup files?..
If neccessary I'll post my entire device information:
Device information:
Model number: GT-I9000
Android version: GINGERBREAD_MR1 2.3.6 (SDK 10)
Kernel version: 2.6.35.7-i9000XXJVU-CL851880
Buildnumber: GINGERBREAD.XXJVU
I hope these questions could be answered!
Thanks in advance.
P.S.: Sorry if I posted this in the wrong section.

Hey,
so first of all I'd recommend Mackay ROM 1.5.9 which is based on CyanogenMod 10 but tries to stay as close as possible to stock Jelly Bean. You can find it in the development section.
To your second point: Go on CM9 first (twice!) then flash a clean CM10 and afterwards finally Mackay. If you got questions regarding that, you can ask me ofc But to be honest you have to read and try a bit to get into these things. I can explain a lot but you have to think yourself before doing something
Best regards
Sent from my Gameboy Color

inMindAndroid said:
I really don't want to spend around 30 minutes to find out what I must do.
Click to expand...
Click to collapse
:thumbdown:

BlueFlame4 said:
To your second point: Go on CM9 first (twice!) then flash a clean CM10 and afterwards finally Mackay.
Click to expand...
Click to collapse
Alternatively you could just do a factory reset and flash CM10 Fishears since it uses the same partition layout as stock, avoiding the need to flash middlemen and format drives.

[Q] Vicious circle on p990.

Hello, i just bought an LG Optimus x2 and i'm trying to get CM10.1 (at least) inside of it.
the thing is, this phone came with what seems to be a custom firmware and bootloader. At bootup it says vtr.com which seems to be a chilean provider. (i'm in Uruguay....) Just bought it new... cant understand why this came like that.
If i try to put clockworkmod, i'm suppossed to do it on a rooted phone.
If i try to root the phone, everywhere says i need to access CWM...
I'm deeply confused.
This pone has not a menu when booting into recovery mode, it just says "firmware update, wait until update finished" i can't choose any file from SD external nor internal.
I have tried several tutorials, using nvflash, using superoneclick... Nothing works.
BTW, i have smartflash just in case i cant put CM10.1 so i tought about putting the official ICS rom, but i dont want to use it, i want cyanogenmod.
Would be a way to achieve what i want to put ICS, then root, then put clockworkmod, then go back to gingerbread and then put cyanogenmod?
Plz help, and thanks for your time.

A lot of ROM-choices
No problem:
1. Sounds to me you have to do a full wipe and start from scratch. The AIO-tool is perfectly suited for this: see AIO option 4. - it will wipe and repartition your phone, install bootloader and root your phone at once (and it can do a lot more).
2. Before wipe, please think about what bootloader (bl) you want: in general old bl is for the older gingerbread-based ROMs, new bl is for most newest ROMs (although some also run on old bl).
3. Then think about what ROM you want. ROM choice is very personal. You could experiment. Just remember to make backups along the way. With the AIO-tool you can even choose Dual Boot for enabling easy-switching between two ROMs (as long they are on the same bl). LG-ROMs are generally not considered best (although some disagree).
3a. I have been running CM7.2 with ETaNa 2.6.32.y kernel (requires old bl) for a long time and was very happy.
But this is an old ROM. If you want to have a newer there are several possibilities (which in general require new bl). I have been very happy with 3b and 3c.
3b. Currently, I am on Pengus77's Look Ma No Hands which is based on CM10 (Ice Cream Sandwich). It is fast and responsive, has low battery consumption and all features (like BT, HDMI) work.
3c. tonyp's CM10.1 (JellyBean) is fast and responsive too and most features (BT yes, but HDMI no) work.
3c. If you want tonyp's latest, try theROM is based on CM10.2 (newer optimised JellyBean). So it got the latest Android stuff, but is experimental (it is not made for our somewhat outdated phone) and some features (BT & HDMI no) do not work (I have not tried this ROM), but
3d. there are a lot of other good ROMs out there. Check the list here.
4. ICS and JB ROMs require different kernels. All ROMs come with required kernels, but these get updated too. I use Kowalski Kernel M1 and flash most updates.
5. After flashing and stabilising the ROM, you can overclock the cpu with eg. Cpu Adjuster. I have have overclocked to 1404MHz, but even 1500MHz is considered safe.
6. The p990 does not have much RAM, so you could consider using Greenify to freeze non-essential apps (eg. facebook/maps/...) which consume memory in standby. Please note, dedicated notifications will not work.
7. After finding the best setup for you, please consider to donate to related devs.
8. Be careful not to become a real flashoholic
Good luck!
PS 5. and 6. might not work on gingerbread-based ROMs

Awesome reply man! Just my 2 cents... CM10 is based on Jellybean too. In fact, it's a 4.1.2 incarnation, while Ice Cream Sandwich was/is 4.0.X. Google kept the jb name from 4.1 to 4.3 because all the updates weren't that major

Ok, thanks pals for your answers, i had some doubts about versions but oneearleft cleared them.
Finally i installed nightly 10.2 Cyanogenmod, had to make a couple of full wipes via reflashing, there was a method to do it wich buttons but didn't work.
Finally i flashed latest LG rom, then i could put CWM and after that Cyanogenmod. If i'm not too crazy, i did all using AIO-Tool.
Sorry if i cant be a bit clearer, but i finished 4AM and with a half bottle of booze inside, so i really cant remember much.
Thanks again.
EDIT: Also, CM10.2 (4.2.2) has BT working, Still could not try HDMI.
EDIT2: I forgot, (booze) at one point, when i installed an official LG-rom for a random provider (Claro-CTI) after a reboot, i saw the "android" android and the phone went to an infinite reboot loop.
That's why i flashed the official ICS rom from LG. This took out the odd botloader and put the nice LG logo with a crisp animation. (vtr.com one was awful and frozed)
Then after that i could flash cyanogenmod with the bootloader that rom brought.

Fyi the roms don't replace the bootloader. Being a tegra device, the bl has to be flashed as a separate step via nflash.

I dont know how it happened or why, i just saw the android and the device became looper. After that, i could reflash it.
I'm really confused about what happened but i have reflashed it several times, i tested CM7.1, CM10.1, 10.2 and i'm about to put P.A.C.man.
My main interest was to be more used to the flashing methods, bootloader and such. (i really knew/know nothing)
Now i'm about to find if i have the new or old bootloader so i can install PACman.
Wish me luck.

Ok now... This cellphone is awesome, sadly the only stable are way too old.
So, ¿Is anywhere a CM9 for this phone? I would love to keep cyanogenmod with it's own appearance and tools but without loosing HDMI, WiFi tether, BT and good battery life.
I've searching for it, but could'nt find.
Thanks.

[Q] VERY worried about flashing miui rom and new bootloader.

I have just recently restarted using this phone due to my uscellular S4 getting turned off. I am now back on my LG-P990 currently rooted and running CM10.1. BUT most importantly to me is the fact that I have all my wonderful apps on my s4, I want to be able to use them by using the LG phone as a tether and calls not much else BUT CM10.1 tethering does not work, so i find myself flashing rom after rom, avatar rom, older CM mods, none would turn on tethering, so i flashed a modded version of MIUI for this phone and it worked except for ONE thing no signal, tethering turned on just fine so i decided to look around for other roms and found Slimrom TRYED to flash it didnt work, try to flash actual MIUI roms off there site, didnt work, met with an error in CWM Recovery after some searching I found its because Im running the OLD Bootloader -_- THIS is the issue im having IF MIUI does NOT work is it possible to downgrade the bootloader again so i can restore my CM10.1 backup? I have been working at this for a week, if there is something here about this can someone please just point me at it? I would appreciate any help.
On a side note i DID soft brick the phone the other day and found a program called nvflash witch flashed an install of CM mod. Dont know if that will help any.

Jeffril said:
I have just recently restarted using this phone due to my uscellular S4 getting turned off. I am now back on my LG-P990 currently rooted and running CM10.1. BUT most importantly to me is the fact that I have all my wonderful apps on my s4, I want to be able to use them by using the LG phone as a tether and calls not much else BUT CM10.1 tethering does not work, so i find myself flashing rom after rom, avatar rom, older CM mods, none would turn on tethering, so i flashed a modded version of MIUI for this phone and it worked except for ONE thing no signal, tethering turned on just fine so i decided to look around for other roms and found Slimrom TRYED to flash it didnt work, try to flash actual MIUI roms off there site, didnt work, met with an error in CWM Recovery after some searching I found its because Im running the OLD Bootloader -_- THIS is the issue im having IF MIUI does NOT work is it possible to downgrade the bootloader again so i can restore my CM10.1 backup? I have been working at this for a week, if there is something here about this can someone please just point me at it? I would appreciate any help.
On a side note i DID soft brick the phone the other day and found a program called nvflash witch flashed an install of CM mod. Dont know if that will help any.
Click to expand...
Click to collapse
I really do not understand how other ROMs deny Tethering. Did you flash the latest 2.x kernel by pengus77 after installing the rom? Did you make a clean install(wipe everything then install)? On the other hand, yes you can switch bootloaders as much as you like, just remember that changing the bootloader wipes everything on your internal memory, so do a backup. Did you try just plain old stock 4.0.4? Should work there. Ask anything you want, if you're still having questions.

NoDze said:
I really do not understand how other ROMs deny Tethering. Did you flash the latest 2.x kernel by pengus77 after installing the rom? Did you make a clean install(wipe everything then install)? On the other hand, yes you can switch bootloaders as much as you like, just remember that changing the bootloader wipes everything on your internal memory, so do a backup. Did you try just plain old stock 4.0.4? Should work there. Ask anything you want, if you're still having questions.
Click to expand...
Click to collapse
As to the flashing to stock i lost the original rom backup i had made along time ago and cant find the original firmware anywhere online. When I flashed CM 10.1 I just ran with it, when i go to try tethering it says "Turning on portable wifi hotspot." and it stays on that no matter what untill i restart, left the phone running for 2 days once and that was still stuck on that before i restarted. As for flashing a 2.x kernel i had no idea about that. But yes when i did the installs i would do a clean wipe and install. Most of what i read online led me to believe that there was an error with CM 10.1 nightlys that was not being fixed for the tethering. So that is why i decided to go to another rom. Two questions one how do i go about finding the original firmware for this phone and two how would i go about updating or downgrading the bootloaders and could i be pointed to the files please?

Jeffril said:
As to the flashing to stock i lost the original rom backup i had made along time ago and cant find the original firmware anywhere online. When I flashed CM 10.1 I just ran with it, when i go to try tethering it says "Turning on portable wifi hotspot." and it stays on that no matter what untill i restart, left the phone running for 2 days once and that was still stuck on that before i restarted. As for flashing a 2.x kernel i had no idea about that. But yes when i did the installs i would do a clean wipe and install. Most of what i read online led me to believe that there was an error with CM 10.1 nightlys that was not being fixed for the tethering. So that is why i decided to go to another rom. Two questions one how do i go about finding the original firmware for this phone and two how would i go about updating or downgrading the bootloaders and could i be pointed to the files please?
Click to expand...
Click to collapse
Okay, This is SFSP by @sgspluss which is a pretty fast, stable and battery-friendly slimmed down version of stock ICS. It is available for both Old and NewBL, so you might want to try that first. This is AIO Toolkit. I know that you've used it and bricked your phone, but try again, and for the love of God install the nvflash drivers because most people skip that part. You have to do it manually and if you're running Windows 8 you need to disable Driver Signature Verification. But yeah, you switch bootloaders with this.