Changing baseband - Galaxy S II Q&A, Help & Troubleshooting

Hello,
I'm sorry if this has been asked a million times before. I couldn't find anything that really answered all my questions.
First of all, I've see lost of roms that say are, for example, a KG2 rom. I'm assuming this means I need a KG2(or similar) baseband in order to use that rom. Is this correct?
If I flash a new baseband from http://www.villainrom.co.uk/forum/s...II-Shipped-Radio-Collection?p=42051#post42051 , do I just do exactly the same thing I did to flash a kernel(select PDA in odin)? Do I need to flash a new, compatible kernel at the same time? If so, before, after, doesn't matter? For example, I have a KF6 baseband and I flashed a KF4 kernel without any troubles. If I then flashed a KG2 baseband without changing the kernel, would I have issues?
Are the basebands numbered in order, e.g., KG2 > KF6(or newer at least)? I'm guessing this is why all the roms I'm seeing are KG2/KG3. I probably have an outdated baseband.
Thanks for your help,
Sam

It is best to use the same version of baseband, rom and kernel, but they are usually compatible to each other.
The KF4 or KG2 is simply a date-code.
KF4= The 4. release of June(F) 2011(K)
You can flash the odin version (.tar.md5) by putting them in the "phone" field. There are also packages out there that can be flashed with CWM.

You really need to pick a baseband/modem that works well for you some find xxx version works better in the area they are in than a later one .
A rom can be unzipped and the modem extracted and flashed via phone in Odin .
jje

Related

[Q] How to revert back to a stock phone/backup the stock state?

I have a few questions about this phone. All the Kernel/CSC stuff is kindof confusing for me coming from wm6.5.
1) If I want to have root access, I have to flash a insecure kernel etc. I understand that so far. To revert back to the state without root I just need to reflash the original kernel as far as I understood.
So my questions is do different regions (ATO, AUT, XEU etc.) have different kernels, or are those kernels the same everywhere?
If yes, where do I find a kernel for ATO (Austria), or is there a (easy) way to extract/backup the kernel?
2) In the wm6.5 world we had something called ROM which containt almost everything. I just read that there are also ROMs for SGS2. If flashed do ROMs update PDA, CSC and PHONE all at once? Where to find that for ATO?
Is the kernel part of a rom?
3) Does flashing a kernel change the CSC in any way?
In general I would like to stay on the stock way for updating etc. but I would also like to gain root access.
Something that's also very important for me is the possibility to get back to a stock phone(no root). (I have some dead pixel issue and I'd like to exchange my phone as soon at my carrier has newones in stock)
I am sorry if something similar has already been asked. If so, I simply didnt find it, sorry.
Hey im still quite new to evreything myself but i thought id have a go at answering your question
1. The different regions dont have different kernals but the different firmwares do, so firmwear XWKE1 has a different kernal to XWKE2 but they share the same CSC XEUKD1.
2. The kernal can be part of the ROM and these are packaged as .tar files which will contain everything that is needed to flash all elements of the phone including kernal and csc. the stock .tars will have secure kernals in them that is why people have made inscure kernals so we can use just the kernal in ODIN root then flash back to the secure kernal to keep the root and have a secure kernal.
A for finding an ATO one i couldnt spot a CSC for austria but your ROM/Kernal can be found over in Intratech's thread in the dev section here:
http://forum.xda-developers.com/showthread.php?t=1075278
3. Flashing the kernal doesnt effect the csc that i can tell, but flashing a custom ROM such as villanROM did, i had to flash the csc for my country to get it to show again
tbh Intratechs thread would be a good read for you as it tells you how to root as well as having a good collection of the stock roms and csc.
hope that was some help, hope people correct me if i am wrong
Thank you for your answers.
Another question:
firmware == ROM == CSC + PHONE + PDA?
I am sure there has to be a way to extract/backup the as is state of my phone. If not, where do all the files come from?
Why arent there any ATO's anyway?
This is the state Ihave right now:
Firmware info
PDA:I9100XWKE2
PHONE: I9100XXKDJ
CSC: I9100ATOKD1
Build date: 06/05/2011
My fear is: Since there are no ATO CSC so download, will I be able to revert back to stock after I messed something up.
yeah a ROM is CSC + PHONE + PDA
I think there is a way to do this via ODIN but i havent done this myself.
i guess you just need to find the CSC for your phone and you will be good to go. Im sure there is someone on here that can help you find it
EDIT:
over at http://www.samfirmware.com/ there is a link to download:
I9100XXKE2
MULTI - CSC - ATOKD1
maybe give that a look. i think that will probably come as a stock ROM so flashing that would take you back to how your phone was if it just came out the box, ie. no root.
that being said too root you have to flash an insucre kernal which would add to the internal custom binary flash counter, more info here
http://forum.xda-developers.com/showthread.php?t=1068522
so if you are planning on returning this phone due to its dead plixal then i would maybe hold off the rooting
Thank you.
I think this answered my questions so far.
Is there a way for me to backup my default custom rom?
I can't find it for download and I want to have a backup for warraty reasons.
Here is the info:
Country: Portugal
Operator: TMN
Product Code: GT-I9100LKATMN
HIDSWVER: I9100XWKEB/I9100TMNKE2/I9100XXKE6/I9100XWKEB

[Q] Question on firmware information

Hi ,
I am using SGS2 from Germany (unbranded)
My initial firmware for KE2 and I then flashed KF2.
My current phone config is
Code:
PDA : I9100XXKF2
PHONE : I9100XXKF2
CSC : I9100XAKF2
Ofcourse as always for me, Kies is not working for firmware upgrade (is it because i have it rooted?)
Anyway I was checking the fiwmare details on CheckFusdownloader and found out today that the firmware for Europe is
Code:
I9100XWKF3/I9100XEUKD1/I9100XXKE7/I9100XWKF3
After downloading the file, the TAR looks like this
Code:
I9100XWKF3_I9100XXKE7_I9100XEUKD1_HOME.TAR
My questions are:
1. How can I map the above with Phone / PDA / CSC etc?
2. Is this the new firmware than KF2?
3. IS it worth moving to this firmware?
4. Would I be able to root?
My battery life seems to be somewhat improved from KE2 to KF2.
Thanks
The newest kernel is KG1 Gingerbread 2.3.4.
Move to KG1. Forget KF3. everyone's on KG1. Fixes battery life and other things Google talk+video.
It goes in alphabetical order efg so G is the newest KG1.
and I am assuming they are in order
So PDA then Phone then CSC.
My CSC is UNKNOWN LOL, true fact.
Latest firmware is KG2 and thats 2.3.3.
KF2 is slighly older than KF3 .
KG12.3.4 is not a Samsung release its a leaked test firmware .
Root yes read the root post in dev section ..
My view wait for 2.3.4 to be released by Samsung for next upgrade if phone is working OK .
jje
1- As long as you are on stock firmware Kies won't make any difference, rooted or not.
2- AFAIK KF2 is the newer build than KF3 and the latest available for Europe.
3- Press *#1234# to see software info.
4- I'd say you should wait for official KG1 to be released. The current one is leaked and have bugs, so better avoid it.
Regards.
Sent from GT-I9100
I'd look up Lite'ning rom 2.2 if i were you...
Roots your phone, KG1 and all in there. Also Gingerbread 2.3.4.
Works perfect for me. Why wait for the official update. Modders will implement it very fast.
Good luck!
If you change to KG1 dont bother flashing the CSC, use the one you have at the moment.
I am not sure if there is much advantage to that KF3 based rom over KF2, so if you are happy with KF2 and dont want to jump to KG1 (which is working perfectly for me, I dont use stock browser) I wouldn't bother.
Yes you would be able to root btw, just use the KF3 kernel from chainfire.
Thanks guys for your feedback
BTW whats with CSC what will happen if I mess with it? phone will get bricked? lets s say if I flash CSC from another country will i be able to go back to Europe CSC?
Is this only for language?
CSC is only a few text files and xml files with lists of networks etc .
Not really needed for phone to work and a new one can easily be flashed .
jje
JJEgan said:
CSC is only a few text files and xml files with lists of networks etc .
Not really needed for phone to work and a new one can easily be flashed .
jje
Click to expand...
Click to collapse
So that means i can flash any country's SGS2 firmware? Whats with baseband? have any info on that?
Baseband = modem/radio.
Yes flash any firmware and enter the networks APN manually as long as its on the same mhz it will work .
But if you flash Chinese firmware it will have Chinese keyboard etc .
PDA = firmware including kerel
Phone = modem/radio/baseband
CSC = country specifics with a list of local networks keyboard to use language to use etc .
Many firmwares are multi CSC say covering most of Europe .
jje
Thanks mate for the clarifications
one quick question. What happens if i try to update phone with multiple basebands?
galaxyII said:
one quick question. What happens if i try to update phone with multiple basebands?
Click to expand...
Click to collapse
You can't, the device can only have one modem at a time.
thanks infratech, I mean more of flashing one baseband and reflashing another version. sorry too bad in explaining
galaxyII said:
thanks infratech, I mean more of flashing one baseband and reflashing another version. sorry too bad in explaining
Click to expand...
Click to collapse
You will just replace the old one.

correction in title!!! changing a BASEBAND and will it work?and how?

PLEASE READ EDIT BELOW ALSO.CHEERS
Im quite familiar with flashing and odin and flashing kernals and roms via cwm and have done it many times but what ive been noticing lately are people who have modems that dont match their firmware.This is something ive never taken notice of before since i just did the basics.A modem is the country based part as ive found out so heres my question.To have a kg6 with a spanish modem (spain being where i live) do i also have to download my countrys firmware open the kg6 for the csc and kernal files then open the other firmware for the modem?.It just sounds a bit risky although its meant to make the phone function better.Im a bit confused cos when 2.3.4 isnt even global yet ive seen S2 phones with aparrently local modems.Is it possible to use a 2.3.3 modem with 2.3.4 then??....
EDIT:Ive been reading on and seeing that its the baseband that appears to be from 2 firmwares.I have kg6 with a xxkg6 baseband but am seeing others with kg6 and basebands from completely different firmwares?!.So is it possible to mix a 2.3.3 baseband with 2.3.4 cos gingerbread insnt global officially global so how would there be regional basebands.Is it safe and does it improve the phone that much?.Im interested in learning more about it and giving it a try but not without first being a bit more informed.cheers
Any modem can be used with any rom.
I have used modem ranging from ke7 to kh3 on roms from kf2 to kg6.
As far as choosing a modem, try them all, and find one which works best for you, as far as I know modems are not county coded so a kg6 modem is a kg6 modem whatever the country code.
Csc is just mostly apn settings and bundles apps for the region, generally you can use any csc with any rom, but if you have problems most csc's cover most regions.
Sent from my GT-I9100 using XDA Premium App
Thanks.What ive started noticing is that some people that have kg6 like me appear to have 2 firmwares.I saw one person for example that had a Galaxy SGS2-XXKG6-VR 2.4.2-Ninpho 2.0.5 EXACTLY like mine but my baseband is i9100xxkg6 and their baseband was xxkh3.how is that possible if you dont use 2 firmwares and what affect does it have over the operating system.i though this was the local side to it all like local operators and tower conections?how is it done safely?
Firmware version KG6 with Modem version KG1 or KH1 .
Modem is part of original rom package can be flashed separate versions are mostly interchangeable .Custom rom may have different modem version .
Modem file flashed via Odin as PHONE .
jje

[Q] Problem upgrading from KI4 2.3.4 to KI3 Android 2.3.5

Hi,
I am currently using KI4 Android 2.3.4 and I want to upgrade to KI3 2.3.5.
I downloaded the firmware (but I think it was simply the stock kernel) from Intratech's post - "XXKI3 stock" and I flashed it using Odin, but it got me into a boot loop and thankfully I did a back up before in CWM4, but I had to re-install KI4, root it, go back into CWM4 to restore the phone. Again thankfully that worked otherwise I would have lost everything.
So... how should I be doing the firmware upgrade?
Also, should I download ZSKI3 instead of XXKI3? I know XX belongs to Europe, but where does ZS belong to? Does it even matter where it belongs to?
Lastly, if I decide not to use CyanogenMod, and I want to use another ROM or if I want to just simply use the stock version that came with the phone, what should I do?
Follow the instructions . Stock firmware thread .
http://forum.xda-developers.com/showthread.php?t=1075278
FULL FIRMWARE NOT KERNEL
ZS = China HK firmware .
Lastly, if I decide not to use CyanogenMod, and I want to use another ROM or if I want to just simply use the stock version that came with the phone, what should I do?
Dont make sense to me but if you want to use a rom you follow the given instructions likewise a stock rom read and follow the instructions .
jje
Thanks JJe!
I have another simple question, is there any problem with installing ROM on different firmwares? Because as I look in the forum, I have seen the ROMs having based on KI4, KI3 and so on... is it critical that I upgrade the firmware, then install the ROM?
Gigacross said:
Thanks JJe!
I have another simple question, is there any problem with installing ROM on different firmwares? Because as I look in the forum, I have seen the ROMs having based on KI4, KI3 and so on... is it critical that I upgrade the firmware, then install the ROM?
Click to expand...
Click to collapse
No mostly is the answer rom modem kernel interchangeable in practice .
My preference if KI3 custom rom would be to install KI3 stock beforehand .
jje

[Q] ROM for I9100 XWKF3

Hi,
I would like to flash new ROMs on my I9100 (XWKF3) but several ROMs have different model number as mine : XWKF3
for example i would like to test :
http://forum.xda-developers.com/showthread.php?t=1659654 but i don't know if i will work or no.
MUST I use only ROM with the same model number as mine (XWKF3) or it doesn't matter and all ROM for I9100 can work ?
thx
rafnews said:
Hi,
I would like to flash new ROMs on my I9100 (XWKF3) but several ROMs have different model number as mine : XWKF3
for example i would like to test :
http://forum.xda-developers.com/showthread.php?t=1659654 but i don't know if i will work or no.
MUST I use only ROM with the same model number as mine (XWKF3) or it doesn't matter and all ROM for I9100 can work ?
thx
Click to expand...
Click to collapse
most custom roms run on the lastest firmware.
xwkf3 is most prob your region firmware.
you can flash any roms listed for your GT-I9100 thats states it for this model.
all you need is root and cwm and to follow the flashing guide and read faq for the rom you have choosen to flash.
To install custom ROM you have to flash CFROOT with CWM first.
You can find one for you here (choose the one according to your current ROM): http://forum.xda-developers.com/showthread.php?t=1103399
Then go to CWM recovery mode and install ROM. I do not know this ROM so cannot tell you more detailed instructions. Please, read the ROM thread carefully for instructions.
EDIT: Now I noticed that you are running GB, not ICS ROM. I am not sure whether it is needed or not, but I would recommend first to flash newest original Samsung ICS ROM, then newest CFROOT and then to install custom ROM. I am really not sure, whether it is needed, but this works smoothly for me.
I already have ROOT and backup ROM from my I9100... so no problem with this.... moreover i already flashed more than 50 PDA so no problem with this also...
so if i understood well only ROM which have XWKF3 as model number can be flashed on my I9100 ?
1. did i understand it well ?
2. or is it only for original and insecure ROM for ROOT mode only ?
ICS ROM even original are not available AFAIK for model XWKF3
or did i miss something ?
thx.
rafnews said:
I already have ROOT and backup ROM from my I9100... so no problem with this.... moreover i already flashed more than 50 PDA so no problem with this also...
so if i understood well only ROM which have XWKF3 as model number can be flashed on my I9100 ?
1. did i understand it well ?
2. or is it only for original and insecure ROM for ROOT mode only ?
ICS ROM even original are not available AFAIK for model XWKF3
or did i miss something ?
thx.
Click to expand...
Click to collapse
no, you have got it wrong
XWKF3 is the version of firmware you are currently on, it has no impact on what you can flash...i.e you can flash any i9100 rom on it. Your model is NOT XWKF3, your model is GT-i9100
please ignore the XWKF3 part, its really not relevant
moreover i already flashed more than 50 PDA so no problem with this also...
Click to expand...
Click to collapse
i dont understand how you have flashed 50 firmwares if you dont know this....i seriously suggest doing some research before doing anything further with your phone
rafnews said:
so if i understood well only ROM which have XWKF3 as model number can be flashed on my I9100 ?
1. did i understand it well ?
Click to expand...
Click to collapse
Definitely not. You can flash any ROM, but you should choose one for your region/country. Choose one from here http://forum.xda-developers.com/showthread.php?t=1544487 or from SamMobile or samsung-updates.
Then take CFROOT dedicated to your ROM from here http://forum.xda-developers.com/showthread.php?t=1103399.
Then use CWM to flash any custom ROM following the instructions for the ROM.
Darkside Agent said:
no, you have got it wrong
XWKF3 is the version of firmware you are currently on, it has no impact on what you can flash...i.e you can flash any i9100 rom on it. Your model is NOT XWKF3, your model is GT-i9100
please ignore the XWKF3 part, its really not relevant
i dont understand how you have flashed 50 firmwares if you dont know this....i seriously suggest doing some research before doing anything further with your phone
Click to expand...
Click to collapse
i think there is a misunderstanding here.
the XWKF3 is in the android OS written as Model Number.
i know that my samsung is a I9100 model however during my flash for ROOT and CWM installation it is also referenced as Model number...
i flashed several HTCs (ROM & FW) before with any issue, my question here was about the model number...is the Android OS model number important in the ROM choice or not.
and you answered to that question
thx
nope, xwkf3 is NEVER the model number, it is the 3rd firmware of june 2011 and therefor terribly old and outdated.
to clarify, xw is your region, general europe, k is the year of the rom (k=11th letter of the alphabet, year 2011), f is the month of the rom (f=6th letter, june) and 3 is a running number for the roms of that month.
also, in android os information, Model Number says GT-I9100, the rom number you refer to can only show up in baseband version and/or build number.
you must flash a rom from this sub forum, not just any model or make of phone, but flashing another kf3 rom would give you the same one, you already have. obviously you would want something newer, like LP7 or LPD or at least LA4.
but given the current state of this device, i would recommend you just connect the phone to the pc, start kies and let it take care of the rom flashing process for you and upgrade you to the latest rom for your region, because at this point i would not recommend you to start flashing on your own, you are still lacking the basics. no offense, but you have a lot of reading to do before you get started on that or you will brick your device!
a good place to start reading is this thread: http://forum.xda-developers.com/showthread.php?t=1075278
after you read the entire first 4 posts in that thread, you can start flashing roms, preferably one you downloaded in said thread, if you have further questions, just continue reading or ask in that thread or here again.

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