Database Users

[Q] How to know what kernel i have

I'd like to know how to check what kernel i have installed (GB or froyo kernel), independently from the ROM i have installed, is there any way?

may it help you.
http://forum.xda-developers.com/showthread.php?t=1450026

So, if i didn't get it wrong... the regular defy only support the froyo kernel and the defy+ only the GB one??
or, i can flash a GB kernel on my defy (MB525)??

Hairo The Blue Mage said:
So, if i didn't get it wrong... the regular defy only support the froyo kernel and the defy+ only the GB one??
or, i can flash a GB kernel on my defy (MB525)??
Click to expand...
Click to collapse
You can flash a GB kernel on Ur MB525 .. but GB kernel has some hardware constraints like in green lens MB525 camera doesn't work.. etc ..
So if ur's is a green lens MB525 don't flash GB kernel ..if not u can flash it..
as of now all stable ROMs like CM7 , Miui , CM9 Beta (Quarx builds) are froyo kernel based..

[Q]Difference between froyo kernel & GB kernel.

I am a noob here
I want to know what is the difference between froyo kernel an GB kernel?
I am using CyanogenMod-7.1.0-11-Defy.
Kernel version is 2.6.32.9-gb08c3c8 (I think is
Android 2.3.7
I have green lens defy MB525.
If the CyanogenMod-7.1.0 is based on GB kernel then what is the need or advantage of Froyo kernel?

AFAIK the Froyo kernel allow to be used on Defy with SOC module, which is not possible with GB kernel, cause is made for Defy+ and all Defy+ has Red Lens and Bayer module, the GB kernel allows too to record in 720p(In theory, still in process by Quarx i think)
Well so the Froyo kernel is needed for Defy with Green lens(SOC module) in a "Grosso Modo" way

Defy works with CM7 and CM9 Kernel
Hi there,
I'm a bit confused. I used cm7 kernel (2.6.32.9-gb08c3c8) and cm9-nightly by Quarx (08.03.2012) it worked fine. Camera etc.
Today I tried cm9 kernel (2.6.32.9-g21f1a48) and cm9-nightly (Defy+) by Quarx (05.03.2012) it works fine too. Camera etc.
I couldn't figure out if I have a green or red lense. (Log Cat didn't find "CameraCommon", what does that mean)
I'm happy that my defy works with both kernels and both versions of Quarx' builds but I would like to know which kernel and which version is the "best" for my phone
Thank you and Greetings to Quarx and Epsi

Dude - you need to figure this out to find out whether you have a bayer or SOC camera module.
The fact that you flashed a GB kernel (I think so) and your camera worked means that you probably have a red lense.
Play with logcat and find out!
Helpful thread:
http://forum.xda-developers.com/showthread.php?t=1116694
Thanks

Well I think I have green lens SOC module.
03-10 12:40:41.733 V/CameraHolder(26391): open camera 0
03-10 12:40:41.733 D/JordanCameraWrapper(21164): device /dev/video3 card is omap3/camise//
03-10 12:40:41.733 I/JordanCameraWrapper(21164): Detected SOC device
03-10 12:40:41.733 D/LibSOCJordanCamera(21164): +createInstance
03-10 12:40:41.733 D/LibSOCJordanCamera(21164): +CameraSettings
03-10 12:40:41.733 D/LibSOCJordanCamera(21164): -CameraSettings
03-10 12:40:41.733 D/LibSOCJordanCamera(21164): +CameraHalSocImpl
03-10 12:40:41.733 D/LibSOCJordanCamera(21164): -CameraHalSocImpl
03-10 12:40:41.733 D/LibSOCJordanCamera(21164): +getParameters
03-10 12:40:41.741 I/PowerWidget(32263): Clearing any old widget stuffs
03-10 12:40:41.749 D/LibSOCJordanCamera(21164): +initialize

Yep, thats the SOC alright - also known as green lense.
Thats OK though.
I'm not sure why the Defy+ Kernel Worked with yours..
Oh well!
Can you tell which one has better performance?

MainCourse said:
Dude - you need to figure this out to find out whether you have a bayer or SOC camera module.
The fact that you flashed a GB kernel (I think so) and your camera worked means that you probably have a red lense.
Play with logcat and find out!
Helpful thread:
http://forum.xda-developers.com/showthread.php?t=1116694
Thanks
Click to expand...
Click to collapse
ok, Catlog found Bayer device

TheStoke said:
ok, Catlog found Bayer device
Click to expand...
Click to collapse
Yay for you mate! You've got the new camera capable of 720p. Flash the GB kernel and away you go!
EDIT: I have kinda been sidetracked here.
TheStoke is fine, because he has the Bayer/Red Lense - he can flash anything.
Serpent Rider, you have Green Lense, which is OK, but you can only flash the Froyo Kernel, OK?
That way your camera will work properly.
Defy+ and Red Lense defy can flash both, and they will have 720p video recording capability with Defy+ Kernel.
Comprendo?

I know I have SOC module and I hardware limitation for 720p recording.
And I am fine with that.
But CM7 didn't have Froyo kernel.
CM7 upgraded the defy mb525 to GB kernel. From 2.2 to 2.3
Now why we are going back to Froyo kernel?

CM7 has GB and Froyo kernel version, on Defy you can use both of them, is not the same to say Android 2.3 and GB kernel, in fact the CM7 for Defy doesnt upgrade the Froyo kernel to GB, sure for that you miss the 720p rec. Of course you can install the CM7 GB kernel too, now you can use too Froyo kernel based ROMs on Defy+ flashing a new SBF appeared a time ago, that is possible because has a CG ver 6 and Froyo kernel
Sent from my MB525 using XDA

serpent_rider said:
I know I have SOC module and I hardware limitation for 720p recording.
And I am fine with that.
But CM7 didn't have Froyo kernel.
CM7 upgraded the defy mb525 to GB kernel. From 2.2 to 2.3
Now why we are going back to Froyo kernel?
Click to expand...
Click to collapse
You need to understand that going from android 2.2 to 2.3 CUSTOM ROM
doesn't necessarily change your kernel to gingerbread kernel. CM7.1 runs
on froyo kernel.
There are a few gingerbread roms that use froyo kernel, like cm7. Then there are roms like
Ms2ginger that require gingerbread kernel.

[Q] Motorola Defy Kernels

hi guys, I would like to ask experienced users what is the difference between the kernels we used on our Defy(s)
Froyo Kernel vs Gingerbread kernel vs Walter79's Kernel
I first encountered this kernel upon viewing the CM9 update thread
I have a red lense defy and the very first rom I flashed was the official CM7.1 so I am aware I do have a Froyo Kernel running on this bad boy.
what is the difference/ advantages?
which is better?
is it safe to flash one over the other?
is it easy to flash? like how we flash roms? we can always go back to to Froyo kernel from the gingerbread or walter kernel and vice versa?
I think a lot of noobs would appreciate your answers.
I will edit this post and add your answers so that others may find it useful as well
some answers--------------------------------------------
arpith.fbi said:
what is the difference/ advantages?
Ans:My experience says that the main advantage of using GB kernel is battery life..
Defy-4.5.3-109_DPP-11-kernel is well known for awesome battery life.
which is better?
Ans: I personally think Walter79's kernel is better in every sense.Unfortunately for old defy owners(SOC camera green lens), camera wont work on new kernels without any extra fix..
is it safe to flash one over the other?
Ans: Yea its 100% safe..i personally never had any problem as such..but i heard few people faced bootloop..in any case you can always go back to froyo or watever kernel u were using
is it easy to flash? like how we flash roms? we can always go back to to Froyo kernel from the gingerbread or walter kernel and vice versa?
Ans: As i have already mentioned above, we can always switch between these kernels..just remember not to flash any GB kernel based sbf or else u will be stuck! before flashing any unknown or less known kernel PLEASE USE THE SEARCH option and know more about the kernel and related problems.
All the best
Click to expand...
Click to collapse
CjRudi said:
i would add, that many people state that GB kernel (2.3) has much better 3d performance - games are running much better than on froyo kernel.
It's easy and safe to switch between kernels, you should only remember that switching kernel must come with installing appropriate rom
Click to expand...
Click to collapse

what is the difference/ advantages?
Ans:My experience says that the main advantage of using GB kernel is battery life..
Defy-4.5.3-109_DPP-11-kernel is well known for awesome battery life.
which is better?
Ans: I personally think Walter79's kernel is better in every sense.Unfortunately for old defy owners(SOC camera green lens), camera wont work on new kernels without any extra fix..
is it safe to flash one over the other?
Ans: Yea its 100% safe..i personally never had any problem as such..but i heard few people faced bootloop..in any case you can always go back to froyo or watever kernel u were using
is it easy to flash? like how we flash roms? we can always go back to to Froyo kernel from the gingerbread or walter kernel and vice versa?
Ans: As i have already mentioned above, we can always switch between these kernels..just remember not to flash any GB kernel based sbf or else u will be stuck! before flashing any unknown or less known kernel PLEASE USE THE SEARCH option and know more about the kernel and related problems.
All the best

thanks for the answer, somehow it has enlightened me
any more answers? which kernels allow 720p recording?

i would add, that many people state that GB kernel (2.3) has much better 3d performance - games are running much better than on froyo kernel.
It's easy and safe to switch between kernels, you should only remember that switching kernel must come with installing appropriate rom

arpith.fbi said:
what is the difference/ advantages?
Ans:My experience says that the main advantage of using GB kernel is battery life..
Defy-4.5.3-109_DPP-11-kernel is well known for awesome battery life.
which is better?
Ans: I personally think Walter79's kernel is better in every sense.Unfortunately for old defy owners(SOC camera green lens), camera wont work on new kernels without any extra fix..
is it safe to flash one over the other?
Ans: Yea its 100% safe..i personally never had any problem as such..but i heard few people faced bootloop..in any case you can always go back to froyo or watever kernel u were using
is it easy to flash? like how we flash roms? we can always go back to to Froyo kernel from the gingerbread or walter kernel and vice versa?
Ans: As i have already mentioned above, we can always switch between these kernels..just remember not to flash any GB kernel based sbf or else u will be stuck! before flashing any unknown or less known kernel PLEASE USE THE SEARCH option and know more about the kernel and related problems.
All the best
Click to expand...
Click to collapse
Thanks for this information bro!!
Please also share Camera fix (link) for GB kernel for SOC Camera and also mentioned whether downgrade is possible. Your help will be appreciated.

anyone correct me but we can do dual boot but can't install dual kernels?
say
cm7 (froyo kernel ) as system
cm9 (gingerbread kernel) on SD
and will Gingerbread kernel work with cm7 for the defy, red lense?

chachoi said:
anyone correct me but we can do dual boot but can't install dual kernels?
say
cm7 (froyo kernel ) as system
cm9 (gingerbread kernel) on SD
and will Gingerbread kernel work with cm7 for the defy, red lense?
Click to expand...
Click to collapse
No, can't do it. Both ROM's should share the same kernel.

thanks Auris, would you be able to add anything or negate anything that was previously posted about the Defy Kernels?

Please help me a bit with those kernels! I have a defy+ with 2.3.6 base and one of those newest official build nandroids. Can I flash Walter's kernel? ^^
Just don't want any bootloader error!
Sent from my Defy+ using xda premium (app needs update!)

M on froyo kernel running cm7.2
Can I flash gb kernel? Also m having green lens.
Will the camera work on walters69 kernel?
[email protected]

thanks
thanks, guys. i've been looking for the answers

Is it okay to flash defy+ rom zip and then the gb kernel on a green lens defy? To me battery life is more important than camera

chachoi said:
thanks for the answer, somehow it has enlightened me
any more answers? which kernels allow 720p recording?
Click to expand...
Click to collapse
Walter79's kernel allows 720p recording for defy red lens.

Defy kernel Flash
i have a motorola defy green lens currently running cm9 4.0.4 (camera's not working but i don't care much for the camera ) . ok here's my problem i'm trying to flash a different kernel on my defy.. the current kernel im running is 2.6.32.9 cdt 2011 but i need better performance and i tried to flash semaphore kernel. the flash was successful but i see no changes and also in the settings>about phone the kernel version hasnt changed. i need help so that i can flash new kernel properly.. thanks

Hi!
I realize this is a very old thread, but it seems to be one of the few addressing the (dis)advantages of the froyo vs the GB kernel (independently of the ROM!).
The 720p-recording is really not important to me, but battery life is and I just read here that it would be better on GB kernel.
Do any of you have further experience with regards to battery-life difference between Froyo and GB kernels (not ROMs)!? Is it a big difference (to what extent or through which features?)
I have a MB525 with red lens and Froyo kernel, so I could go for a GB-kernel.
I've recently rooted my smartphone and flashed WIUI (3.1.27, GB&MIUI-based) on it, because (1) my phone was slowing down, (2) I wanted not to have any bloatware anymore and (3) I wanted some apps that only run on Gingerbread/2.3+ (e.g. the offline-language-package-feature from Google Translate). Almost everything is now better.
BUT, my battery life got worse! I've now down-volted my smartphone to a stable point and set it to 'smartassv2', but am looking for further improvement for the battery life. As WIUI can be installed both on froyo and GB-kernel, I might also update the Kernel...but only want to take the plunge if it really would make a difference...
any advice or experience is welcome!

[Q] Help the noob!

Hey guys,
My wife was complaning about her Defy being slow so i dediced to take a look and install a custom rom. As a SGS 2 user, i'm very confused with Defy
My wife has;
MB525 (i assume this is Defy not Defy+) with Android 2.2.1 and Green Lens
I've read lots of topics and understood the rooting process, etc. but my biggest confusion is with the kernel and roms. I'm seeing froyo and GB kernel, what is the difference between them? Which kernel should i use for my Defy? The roms are kernel specific? If i have froyo or GB kernel, i can't use some roms?
And lastly, which roms you guys recommend?
Thanks in advance!

first of all Motorola sucks!!!
defy's bootloader is locked..so no custom kernel...hence we use official kernels..
as u know dere r 2 kernels..ICS and GB kernel..defy with green lens can use only froyo kernel..if u flash a GB kernel on defy with green lens then u wont have camera(dere is a patch)..
and i think all roms support froyo kernel..so u shouldn't be having any problem..
new defy with red lens and defy+ can run gb kernel..dere isnt much difference in performance between gb and froyo kernel but gb kernel give better battery life..thats the only visible difference..
Go through guides and threads and i m sure u will understand better..
try many roms..start with CM7..then jump to CM9..if u get bored then do try WajkMIUI..they look pretty good
Welcome to the world of Locked Bootloader

The ROM I would recommend
I have exactly the same phone as you have. The best ROM would be:
http://forum.xda-developers.com/showthread.php?t=1033654
Its Android version 2.3.7
Its from Quarx and its fast, stable and give long battery up time. You can trust it 100%.
ICS is under development.
Please hit the Thanks button if this was useful.

The defy+ is basically the defy with a better battery, 100% red lenses and official gingerbread. Therefor the kernel for the defy+ is called the gingerbread kernel.
In this kernel there it's only support for the red lens module. So you can't use your cam on this kernel.
(flashing this kernel is done best from recovery as you have no danger of not ably to go back).
A ROM made for one kernel can't be used on an other.
The other thing is the battery. Most defy+ roms use the battery files of the defy+. I think the builds from epsy use tyre defy files (he doesn't have a defy+) although this just needs a patch.
Sent from my MB525 using XDA

arpith.fbi said:
first of all Motorola sucks!!!
defy's bootloader is locked..so no custom kernel...hence we use official kernels..
as u know dere r 2 kernels..ICS and GB kernel..defy with green lens can use only froyo kernel..if u flash a GB kernel on defy with green lens then u wont have camera(dere is a patch)..
and i think all roms support froyo kernel..so u shouldn't be having any problem..
new defy with red lens and defy+ can run gb kernel..dere isnt much difference in performance between gb and froyo kernel but gb kernel give better battery life..thats the only visible difference..
Go through guides and threads and i m sure u will understand better..
try many roms..start with CM7..then jump to CM9..if u get bored then do try WajkMIUI..they look pretty good
Welcome to the world of Locked Bootloader
Click to expand...
Click to collapse
You mean there is a patch to make the camera work with a gb kernel and green lens defy? I can't find any...

CM9 Kernel?

warning noob alert!
I dont get it with the flashable cm9 kernel thats needed for cm9, i have cm9 now but wondered if i have gb kernel or not after flashing the cm9 kernel cause inte the system info it says 2.6.32 which is froyo kernel? and if thats true then i dont have 4vsels only 3 right? do i have to use the nandroid and fixed .sbf tog get 2.3.4 and true gb kernel och does the cm9 kernel flashable zip really work? it really bugs me i want to know and i cant seem to find the answer...
sorry if the question i confusing.
Defy red lense running CM9 MIG 1.0

Every CM9 rom is based on the same kernel(base) 2.2.2
Just like CM7.
So, CM7 kernel includes some kernel fixes reqiured for rom to work on green/red lens MB525 devices
CM9 kernel doesn't change kernel version, it also includes fixes so it can work on 4.5.x sbfs, but the rom is still based on 2.2.2
I don't think that you have to downgrade anything.
Just flash CM9 or (I recommend) CM10 plus version, and after that (or before) flash cm9 kernel zip.

on http://defy.wdscript.fr/ you can find different kernels. Two for the defy and two for the defy+.
In the past, I've tried both kernels on my defy.
just download the kernel defy(+) you would test. install the kernel via recovery first, and after that, the Rom.
but remember:
on defy kernels, only defy roms work.
On defy+ kernels, dass only defy+ roms work.
As I remember, we on defy+ kernel I got four vsel entries.
Sent from my GT-P7500 using XDA Premium HD app

Hi !
With defy green lens you have to flash the CM7 kernel.
With defy red lens U can flash CM9 kernel like as defy+.
That's aLL