Database Develop

[Q] Is it possible to change only the baseband?

Hi guys,
I'm new to android phones samsung, I come from a milestone and I am a bit dizzy with it the roms, kernels, baseband, etc.
I could update the phone, and put cognition, lagfix, and HSUPA
But I have some signal problems. I specifically bought the captivate because it has all the bands of my country (Argentina), but I think somewhere in the process, I changed the baseband to the i9000.
I wanted to know if it is possible to change only the baseband back to the i897 and maintain cognition, the lagfix and everything else.
I leave it that shows me system information. I search the forum and saw that there is a combination I want but not how they got it.
Firm Version
2.1-update1
Baseband
I9000UGJH2
Kernel Version
2.6.26
[email protected] #Voodoo_lagfix_3.0_v1.10
N Comp
Cognition v2.1.5
Thanks,
Regards

I think it is not possible, at least in any thread I found that comment

[Q] Baseband

I was wondering if the baseband is unified like in my old Xperia x10a, i have a p990h right now, and i don't really know if these baseband posted here will mess with my data connection... i do know that for europe and america in general are different physical parts in the phone, but if the baseband are unified, i'll be able to use any firmware, and my data connection will work perfectly.
Regards

hey guys, no one knows about this topic?

[GUIDE] : Flashing a baseband and why you should do it

Hello All.
I had a small talk with DoomLord about flashing base-bands over the phone and the difference it would make for your phone so have decided to make the information that I got available for the public here so that no one else has to go to the same hassle I did Googling for all the stuff.
I am a power user of Android. But completely unbeknownst to the development side of the OS. So if I make any mistakes, I request you to point them out to me and I will make the necessary corrections.
So what exactly is a baseband ?!
Inside of your cellphone, there is a chip embedded that enables it to communicate with your carrier's transmission towers. This chip is known as a "baseband processor" and it is responsible for signal processing and realtime radio transmission operation. (Got that bit from WikiPedia)
The baseband is actually a piece of software that instructs that processor on what frequencies to operate on.
Kind of like a driver for any hardware that you might install on your computer.
So any gain in the level of harmony between the hardware and software that make data transmission happen on your phone (GSM/DATA) is only going to benefit the phone's performance. ( READ battery life, signal reception, etc.)
Also, each baseband has it's corresponding libraries which also need to be provided for it to be working optimally.
So that's that for the theory part.
I'm open to corrections. If anyone can point them out, I will be happy to edit the post. But I had a lot of trouble trying to understand WHY I should flash a particular baseband and what difference it will make.
Currently, at XDA we have baseband patches for baseband -36 and -64 available.
So as per your ROM requirements, it would be better to flash any of these base-bands onto your phone with their corresponding libraries.
Which brings us to the next part.
ACTUALLY flashing the baseband.
Pretty simple process actually.
But from what I know, you will need a rooted phone with an unlocked bootloader to do this. (!! Not sure !! )
And a custom recovery (Clockwork MOD) that can allow you flash .zip to NAND.
EDIT : You just "NEED" root. (Thanks Flo95)
Please follow post 2 for further info on how to do it without root.
My ARC S is rooted and has an unlocked bootloader.
So all that you need to do now is download the following :
1.Flashtool.
2.Baseband that you require.
3.Corresponsing baseband libraries
I will be posting more on this with screenshots so that everyone can enjoy the same benefits that I have currently after using my phone on -36 baseband and using the corresponding patches.
Credits to DoomLord (For awesome DOOM Kernel) and Iridaki (For baseband patches). If there is anyone else to credit, please do point and I will acknowledge the same here.
I invite inputs from other experienced XDA members to provide more technical Know-how on why this is necessary. Sadly, there is insufficient material right now on this topic here.
Thanks.
EDIT :
Lets share a list of working Basebands in various areas :
For eg. :
Gujarat, India : 36 works fine on Vodafone 3G
64 works fine on Vodafone 3G and Airtel.
NSW Australia (on the Optus network) : Baseband 36 tested to be working great
Finland:
-64 works great for Sonera / Saunalahti / Elisa / DNA
-36 drops connection alot for Saunalahti / Elisa
Croatia
baseband 56 works great in Croatia
You can point to the baseband working for you and your location and I will update the post accordingly.
Thanks
Please click the "THANKS" button if you feel you've benefited from the info !

You can flash basebands without an unlocked bootloader, as it happens when "normal" users update their devices the official way without need of an unlocked bl.
You can get recovery with SE Extreme Tweaker on locked bootloader, too.
Only thing you need is root.
But for kernel awesomeness I'd definitly recommend to unlock the device.
Sent from my iPad 2 using Tapatalk

What baseband is actually the best for uk in terms of signal battery and gps?
Sent from my LT18i using Tapatalk

Thanks for this topic!! ok I attach here the post I published in the other thread with no answer :
" @Iridaki: Sorry for my stupid question... But is there a way to flash another baseband directly from recovery?? Or I don't know, with root explorer... I'm on firmware. 42 rooted, with locked bootloader and with recovery. Thanks!
Sent from my Arc S LT18i using Xda Premium App"
Thanks in advance for your answer!!

rkanwar said:
What baseband is actually the best for uk in terms of signal battery and gps?
Sent from my LT18i using Tapatalk
Click to expand...
Click to collapse
I think this is a great idea to discuss what basebands work best in what areas, it will certainly help a lot of people make the right (and informed decision).
To start off, I am in NSW Australia (on the Optus network) and I have found that the ideal baseband for me is .36 - All the other ones work fine of course but the .36 offers best/optimum battery and radio output for everyday use (with the latest DooMKernel of course!)

Hi, Im from the Philippines and wondering what baseband suits for my Arc S?

theduke89 said:
But is there a way to flash another baseband directly from recovery?? Or I don't know, with root explorer... I'm on firmware. 42 rooted, with locked bootloader and with recovery. Thanks!
Sent from my Arc S LT18i using Xda Premium App"
Thanks in advance for your answer!!
Click to expand...
Click to collapse
Yes there is a way to flash the baseband without Flashtool, but we wont publish it for now, since it's not working reliable on me. For theorie its working like an SE fota update. Which uses binary diff and flashes the diffs to the corresponding areas. This way you could flash all partitions. But this is only theory for now, because with flashtool we have a better way which is very very safe. Even if flashtool fails the phone can be restored everytime. Via FOTA you can really brick it forever
@All asking for which baseband fits best:
Please please DON'T start flashing basebands without thinking about now.
Normally ALWAYS use the baseband which comes with the ROM! For example SE always has the corresponding baseband included. This baseband fits the android libs it comes with.
On custom Roms please read what the developer of the customRom telly you. If he/she has developed the Rom for specific baseband libs.
All other things like baseband patches are tested and developed by other developers which know what they are doing. So if you use such a patch ALWAYS read the manual and the requirements. Because it CAN happen that it is NOT possible to use a GB baseband on a ICS rom and vice versa. The is a little more than "just" libs and firmware. Also the java part framework/base/com/java/internal/telephony....
has to fit the baseband (SE is very special here).
So i hope now you all understand. Please please please leave the decision which baseband is best and which is working to the devs who know what they are doing!!!!!! Don't come here and tell "i tried baeband xxxxx now my phone randomly disconnects data/voice/..."
Thanks

I'm in Victoria, Australia on the Telstra network. Does anyone know which is the optimal baseband for me to use?
Cheers.

Crikey83 said:
I'm in Victoria, Australia on the Telstra network. Does anyone know which is the optimal baseband for me to use?
Cheers.
Click to expand...
Click to collapse
You completely ignored the post above yours, didn't you?
iR¡[email protected]!* via Tapatalk

Finland:
-64 works great for Sonera / Saunalahti / Elisa / DNA
-36 drops connection alot for Saunalahti / Elisa

baseband .56 works great in croatia

iridaki said:
You completely ignored the post above yours, didn't you?
iR¡[email protected]!* via Tapatalk
Click to expand...
Click to collapse
Hehe, maybe just a little bit. The rest of the post was supposed to read that I am currently running baseband 64 but have **** internet connection even with full network reception.
Sent from my LT18i using XDA

ive been using baseband 36 so far, not bad might try 64 soon

RIL and baseband 405 okay?

Hello. I searched around the xda forums for some stuff regarding basebands and RILs and found many open threads with only short or no answers at all. I found a thread with baseband 313 ( http://forum.xda-developers.com/showthread.php?t=1500443 ) but all the links are dead. Also I cannot find any proper guide or explanation of tghis topic.
I have flashed my phone to Owain's CM9 build now and while I'm at it, I wanted to finally get my baseband and RIL right. I installed GetRIL and it said my baseband doesn't match my RIL, so I trusted the app's recommendation and installed the RIL 405. Now my phone has
baseband 1035.21_20110405
RIL 0405 (V10c, Spain)
Is that allright? Any better combination regarding signal strength or battery life?
I cannot understand the naming scheme of basebands and RILs. I often read things like "flash V20q baseband"... Huh? Does that refer to RIL or baseband? Cause my baseband does not include anything like V20q. Are these people actually talking about RIL?
So confused.

theevilworm said:
I cannot understand the naming scheme of basebands and RILs. I often read things like "flash V20q baseband"... Huh? Does that refer to RIL or baseband? Cause my baseband does not include anything like V20q. Are these people actually talking about RIL?
So confused.
Click to expand...
Click to collapse
Well, no, they are in fact talking about the basebands.
Every official ROM from LG comes with a baseband which internally carries the ROM version-information. However, that information is not visible on the phone's about page. There you will only see the major and minor version, like "1035.21_20110725". In theory, any baseband with the same version-information should behave identically. In practice it's a little different. You can read the real information (stock-based ROM only) by dialling "1809#*990#", tap "Version info" and look at "Factory Version". That's the real baseband-version, and also identifies which official ROM-release it came from.

Thank you TrymHansen, it seems you have some knowledge about this stuff so may I ask a few more questions?
Dialling "1809#*990#" does not work since I am not on a stock ROM. So what baseband do I have? V10c like my RIL?
My current baseband and RIL seem pretty old to me, are they outdated? Can you please provide a link to a more current version? I really searched but I do not understand the results. What is the baseband and RIL everyone uses? 725? V20q? What do these numbers even mean?

theevilworm said:
Thank you TrymHansen, it seems you have some knowledge about this stuff so may I ask a few more questions?
Dialling "1809#*990#" does not work since I am not on a stock ROM. So what baseband do I have? V10c like my RIL?
Click to expand...
Click to collapse
I cannot determine that fully, but the alternatives are 10d, 10c, and 10b. All of those came with an 0405 baseband.
My current baseband and RIL seem pretty old to me, are they outdated?
Click to expand...
Click to collapse
They are old, yes. That's not very important however, the question is if they work satisfactorily for you. If yes, there's no need to change.
Can you please provide a link to a more current version? I really searched but I do not understand the results. What is the baseband and RIL everyone uses? 725? V20q? What do these numbers even mean?
Click to expand...
Click to collapse
20q is the last ROM-version officially released for many countries (some have gotten 20r). The 20q baseband is the baseband that came with it.
Many of us use a baseband from the Korean SU660-model, because some of us struggle with noisy "other end" calls. The SU660 baseband solves that specific problem.
In short, if your phone works and you don't have any problems you think you can relate to the baseband, let it be.
If you still want to flash a new one, here is 20R, here is 20q.

Thank you so much, you cleared up a lot of confusion! Also thank you for the links.
Now one last question. Which baseband + RIL do you use? I understand that these may not work for me for whatever reason, I just want to know what the pros use.

I use the 20111120 baseband from the SU660, which came with the ROM 20j for that model.
Forgot to answer the last post question of what the numbers mean.
The 1035.21 is presumably an internal version information for LG, the rest is simply the date the baseband was first released. (For stock ROMs this hasn't changed since 0725. As I said, every baseband which has the informatin 1035.21_0725 should in theory be identical, in practice there turned out to be small differences relating to Fast Dormancy and other stuff very few know a lot about.)

Thank you. Did you flash that with "SmartFlashTool"?

Yes, that's the only way to flash a baseband separately.

I will use my phone with baseband 405 for a while and keep an eye on the battery life. If it happens to be miserable I will flash the 1120 baseband and RIL.
What I understood from your answers is that LG releases new stock ROMs which internally have names like V10c or V20q. The basebands that come with the new ROMs adopt these numbers. Although multiple stock ROMs contain the same baseband like 1035.21...725, they behave different depending with which ROM they came. The RIL also adopts the name like V20q from the ROM but is always the same. This is how I will explain others who have the same problems as me.

Almost, but not quite. The ril also differs from ROM to ROM-version. It is however, impossible for the RIL-programs to determine if you have a 20q or 20r baseband, the programs can only look at the regular version information (you know, xxx_0725), and recommend a RIL based on that. The theory is/was that it's best that they match. I don't fully agree, I think it's best to use the RIL the ROM was designed for. For stock ROMs that's the RIL that came with the ROM, for CMx it is either RIL 0218 or a korean RIL/baseband combo.

I'm helping a friend with his o2x, it came with froyo and I flashed the temasek cm7 kang on it which is based on 218 ril. The baseband is 405. Is it ok? I don't find an exact anwser...

Which Baseband Works Best For You?

I think the Baseband is much important in a Rom. I tried Lots of Baseband for me the best XXKPK. Someone telling XXKPG and the other one XXKPM etc. For example my phone connect with 11 Mpbs with KPM , 36 Mpbs with KPK in my garden same position.
Is there any app or something to try and get real results?
This should not be something relatively or the Baseband is not personel for me good and for other bad.
Lets make something with this Subject together.
Regards.

battery drain is also very dependent on baseband. so do you want the one with best battery drain, best reception or best balance?

the baseband of the latest firmware which is via kies available in you region should be the best

for me the lastest XXKPM it has not changed to a lot in the several signals, the only obvious change is the 2G that now it goes very faster also in the switch

CastagnaIT said:
for me the lastest XXKPM it has not changed to a lot in the several signals, the only obvious change is the 2G that now it goes very faster also in the switch
Click to expand...
Click to collapse
I can confirm that, esp. for 2G
also battery drain is bit better now (before stock and KPK)
and call quality is better and that is what I like most of the new baseband. Less noise.

EB2012 said:
I can confirm that, esp. for 2G
also battery drain is bit better now (before stock and KPK)
and call quality is better and that is what I like most of the new baseband. Less noise.
Click to expand...
Click to collapse
i just flashed XXKPM, i find the signal become weak and unstable =.=...
the value of signal is always change too much...from 10asu to 23asu...=.=

pp910317 said:
i just flashed XXKPM, i find the signal become weak and unstable =.=...
the value of signal is always change too much...from 10asu to 23asu...=.=
Click to expand...
Click to collapse
in which country do you use it ?

texten said:
the baseband of the latest firmware which is via kies available in you region should be the best
Click to expand...
Click to collapse
So, the Baseband is change by country. Therefore XXKPM is really bad for me..
My matter is, There is no firmware for Turkey. Im searching for 3 days but couldnt find anything.

Joy` said:
So, the Baseband is change by country. Therefore XXKPM is really bad for me..
My matter is, There is no firmware for Turkey. Im searching for 3 days but couldnt find anything.
Click to expand...
Click to collapse
use a baseband from neighbours country/region or from a branded firmware of your region

base bands
texten said:
use a baseband from neighbours country/region or from a branded firmware of your region
Click to expand...
Click to collapse
Where can i find all baseband file download

zzozozo said:
Where can i find all baseband file download
Click to expand...
Click to collapse
you can try some basebands here:
http://forum.xda-developers.com/wiki/Samsung_Galaxy_S_Plus/GT-I9001#ROM_parts
and you can flash a stock rom to get another baseband:
just register and search here for i9001:
http://www.sammobile.com/firmware/
or download here without account:
https://samsung-updates.com/device/?id=GT-I9001
or use this firmware download tool:
http://fus.nanzen.se/

EB2012 said:
in which country do you use it ?
Click to expand...
Click to collapse
china

Many time after update baseband is necessary to wipe data to solve battery drain
GT-i9001 Shadow ROM 2.0.5
Skyhigh Undervolted
ICS Theme
smartassv2 sio i/o
tweaked governator

best modem
texten said:
you can try some basebands here:
http://forum.xda-developers.com/wiki/Samsung_Galaxy_S_Plus/GT-I9001#ROM_parts
and you can flash a stock rom to get another baseband:
just register and search here for i9001:
http://www.sammobile.com/firmware/
or download here without account:
https://samsung-updates.com/device/?id=GT-I9001
or use this firmware download tool:
http://fus.nanzen.se/
Click to expand...
Click to collapse
tnx i just download the kpk version and install it (do i need any cash reset?)

pp910317 said:
china
Click to expand...
Click to collapse
KPM and the whole new stock ROM is made for regions: Austria, Belgium, France, Germany, Hungary, Italy, Spain, United Kingdom

All Stock Rom's:
http://forum.xda-developers.com/showthread.php?t=948790
The usual modems are in the bottom of the 1st post. Worked all fine for me

For you, ZSJV1,,

I'm using XXKPM and it works like a charm for me. Don't know if it's a placebo or not, but i feel the wifi signal better when i'm far from the router, and also 2G is faster. Also calls are better. Less noise.
Sent from my GT-I9001 using xda app-developers app

XXXKPM works good for me, but is very similar to KPL baseband
Da tapatalk

Baseband problem on i9000. running I9000XXJVU
Joy` said:
I think the Baseband is much important in a Rom. I tried Lots of Baseband for me the best XXKPK. Someone telling XXKPG and the other one XXKPM etc. For example my phone connect with 11 Mpbs with KPM , 36 Mpbs with KPK in my garden same position.
Is there any app or something to try and get real results?
This should not be something relatively or the Baseband is not personel for me good and for other bad.
Lets make something with this Subject together.
Regards.
Click to expand...
Click to collapse
I lately installed 4.1.2 X-Bean 3.0 , kernel version 3.0.45-Semaphore_JB_2.3.0. I have no network (Mobile network not available). I live in Macedonia T-mobile sim card. How do i fix this problem.
I had cm10 4.1.2 and everything worked fine...
Thanks