Database Develop

Kernels/Modems

Hey guys I'm really new at this, can some someone explain what a Kernel/Modem is. I know what the Kernel is used for but, there are some many different Kernels that people use and I have no idea on how to pick which one is right for me. Currently I'm running Cognition 3.04 with Stock Kernel with Voodoo Lag fix.

a modem deals with signal and data speeds (different modems work better for people in different places) i9000 modems can only be used with i9000 roms and vice versa for the captivate roms (cognition)
modems thread (http://forum.xda-developers.com/showthread.php?t=835272)
a kernel deals with drivers (not 100% sure) oc/uv (overclock, undervolt), free ram, and tweaks that make it faster/smoother.
gb's kernel thread (http://forum.xda-developers.com/showthread.php?t=887315)
seitron's kernel thread (http://forum.xda-developers.com/showthread.php?t=828052)
if you want more clarifications just ask

ok so with my current configeration, ,I can run any captivate based rom right?(im running cog3.04) and say I wanted to try those i9000 roms I have to change my modem not my kernel, correct?
Sent from my SAMSUNG-SGH-I897 using XDA App

Vik_92_Sandhu said:
ok so with my current configeration, ,I can run any captivate based rom right?(im running cog3.04) and say I wanted to try those i9000 roms I have to change my modem not my kernel, correct?
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
When you flash a rom it will change the kernel and modem
Any i9000 will come with compatible modem and kernel

Oh ok I see so just flash the rom, thanks for the help, greatly appreciated.
Sent from my SAMSUNG-SGH-I897 using XDA App

[Q] Canadian Gingerbread Rom? JV1 or JVK ?

I am a Bell i9000m user -- I'm using Froyo right now (JL2 modem) which uses the 850 hz band
I desperately want to go to a Gingerbread ROM.
I understand before flashing roms via CWM I need to change the bootloaders to the new Gingerbread 2.3 models
Can anyone point me to directions as to do this (I think it would have to be done via ODIN I'm assuming?)
Also, do I use JV1 or JVK ? what's the difference ?
Cheers

You could try ezbase, it didn't work very well for me though. (errors on boot)
http://forum.xda-developers.com/showthread.php?t=991792
Otherwise, you could flash the gingerbread bootloaders, then your choice of gingerbread roms, or flash the stock deodexed JVB in ramad's thread, with odin.

FuryriderX said:
You could try ezbase, it didn't work very well for me though. (errors on boot)
http://forum.xda-developers.com/showthread.php?t=991792
Otherwise, you could flash the gingerbread bootloaders, then your choice of gingerbread roms, or flash the stock deodexed JVB in ramad's thread, with odin.
Click to expand...
Click to collapse
So JVB is the one to go with ? I am gonna flash the bootloaders first to turn it into a stock Gingerbread phone then go from there.
What do you mean by stock "deodexed" JVB ? what's the difference between deodexed and/or the original stock ? Sorry I'm still kinda new / learning

Funkadelick said:
So JVB is the one to go with ? I am gonna flash the bootloaders first to turn it into a stock Gingerbread phone then go from there.
What do you mean by stock "deodexed" JVB ? what's the difference between deodexed and/or the original stock ? Sorry I'm still kinda new / learning
Click to expand...
Click to collapse
yes definitely go with JVB bootloaders (e.g here, for files and instructions: http://forum.xda-developers.com/showthread.php?t=1047924) and install a good base rom (e.g.Docs, Simply Honey or Stock Rom) that installs the full JVB in ziplined and deodexed form: this will aloow you to add features and themes later. If you only install the basic odexed JVB you cannot add themes or apps without risking (and incurring, boot crashes).
After you have the Rom installed you can go back to Odin and flash the KC1 modem if the JVB modem doesn't connect with Bell (or adjust the settings as per here on how to activate the necessary band within any modem).
You can than flash any custom kernel if you want to further tweak and adust your system. (Warning, this does get to be fun).

Docs didnt work as well as i'd hoped, i ended up going with Bezke's rom - plus it already had the theme i was planning to install haha.

[Q] Froyo based modem on gingerbread?

sorry for being a noob but i just one quick question. I got on a 2.3.3 rom and i wondered if i could flash a froyo modem like jk4 on it?

assuming your gingerbread is running a cmw3 package....
http://www.4shared.com/folder/QumxbFdV/_online.html
courtesy of gingerstyle rom instructions

If you don't know if you have CWM 3, check the color of the text. If it is orange, then you do have CWM 3. You can use the link in the above post or my sig.
If your text is not orange, then you have CWM 2 and can flash the normal Froyo modems.
I have flashed several Froyo and Gingerbread modems using Continuum 5 RC3 and have had the best luck with Gingerbread ROMs. However, that is based on my phone and yours might be different.

Wow...thats a lot of modem you have...do you have kp1 modem? as it works well in my country...

Questions about Bootloaders, Kernels and Modems

I am new to Galaxy S but have had experience with roms, kernels and radios from a G1.
I started with Samsung 2.2 firmware and rooted it using Cyanogenmod wiki page and flashed the latest MIUI. I know kernels change speed and include Voodoo colours and sound for Galaxy S. I also now radios can change signal and gps accuracy.
1)Are modems the same as radios and if so where do I find a list of them?
2)What is the best bootloader and why does the Gingerbread one not have sd cards work? Also what else doesn't work?
3)How can I check which radio I have and if I flash any bootloaders how do I check that?

Radio, Modem and Baseband are all the same thing. You can check which one you have by going to Settings >About Phone and checking the Baseband Version.
A new modem is easy to flash as a zip file from Recovery and you can find lots of them by searching in the Dev forum, however make sure you flash a modem that is for CM7 since you have Miui installed. For guidence you can search for Modem in the Miui or CM7 thread in the Dev forum.
As for bootloader, there is no way to check which you have, but as you installed Miui directly over 2.2 you should have the froyo bootloaders. CM7 and Miui were designed for froyo bootloaders. Some people say that GB bootloaders have better battery life but if you have GB bootloaders with CM7 you can't access you external SD card and other things may not work properly. I would suggest staying with froyo loaders for now and seeing how it goes.
Sent from my GT-I9000 using XDA Premium App

I have read this:
http://forum.xda-developers.com/showpost.php?p=9579987&postcount=11945
but I don't know if it still JPP is the best radio as this was back in December. For people in the UK what would be the best overall radio?

can anyone answer me which is the best CM7 modem for ORANGE ROMANIA? tks

Try jvp or jpy, I'm on orange uk, insanity cm and they both work fine for me don't forget you need cm7 modem, there are 2 threads in dev for this
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About bootloaders
I have a SGS GT-I9000, and following
directions from ROM kitchen, I installed a Froyo 2.2.1 version.
It's I9000XXJPY with 2.6.32.9 [email protected] #22 kernel
and it says Rom kitchen v11.1-ZSJPK.
I wanted to install a Gingerbread version from ROM kitchen as well, but it says I have to make sure I have at least JVH bootloaders. Ummm, do I ? And what to do so i could install a gingerbread to my SGS ?
I installed a 2.2.1 froyo also from ROM kitchen I9000XXJVO with 2.6.32.9 [email protected] #22, build number XWJSD, hoping i'll install newer bootloaders with it.
But, i had problems with messaging so i'm gonna have to revert to previous one.
Do i have proper bootloaders or not and what could happen if i tried to install Gingerbread and don't have proper bootloaders.
Thanks in advance

[Q] ICS firmware Q

Hello.
I was running Semaphore with JVT. Now I'm on Hacksungs ICS builds it says it's using JVK? Is this correct? And should I flash JVT back?
Kind regards

o0wiz0o said:
Hello.
I was running Semaphore with JVT. Now I'm on Hacksungs ICS builds it says it's using JVK? Is this correct? And should I flash JVT back?
Kind regards
Click to expand...
Click to collapse
It means that you are using JVK baseband (modem), it's default modem on hacksungs ics. If you want to flash different modem, go to siky_dude's cm7 modem thread. If your signal and battery life is good, there's no need to flash another modem.
http://forum.xda-developers.com/showthread.php?t=1158783

Thank you for clarifying that. I will leave it be then. Much appreciated and thanks left.