[KERNEL] SpeedMod SGS2 Jelly Bean [K5-8 CIFS ROOT / NO-ROOT CWM5] - Galaxy S II Original Android Development

Hi guys,
This is the SpeedMod kernel for Android Jelly Bean for the Samsung Galaxy S2 GT-I9100.
This kernel only works with Samsung JB based ROMs.
SpeedMod's core features are:
- Super stable: No undervolting, overclocking or potentially unstable modifications
- Fast and smooth: Compiler and code optimizations
- Excellent battery life: Remove unecessary logging and debugging
>>> CLICK HERE for more info and the DOWNLOAD links.
>>> CLICK HERE for the Frequently Asked Questions list.
Current features:
Root and CWM:
- Automatically installs root (su) but can be disabled
- CWM recovery 5.x
Screen and misc tweaks:
- init.d, TUN, CIFS, IPV6 Privacy support
- MMC_CAP_ERASE disabled to fix the hard-brick bug (this kernel is "safe")
Performance:
- CPU governor tweaks: increase responsiveness
- IO tweaks
- Read ahead tweaks
- Compiled with optimizations using Codesourcery GCC toolchain
- Multi-core aware scheduler SCHED_MC
Turned off unnecessary logging for better smoothness and efficiency:
- Disabled Android Debug Logger / logcat
- Disabled Samsung debug
- Disabled various kernel debugging, statistics and tracing options
>>> CLICK HERE for the CHANGELOG.
Instructions on how to enable logcat and disable auto-root are in the 3rd post (below).
>>> CLICK HERE for more info and the DOWNLOAD links.

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Reserved for future use.

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Here is how to change some of the kernel configurations:
[HOW TO ENABLE LOGCAT]
If you are a developer or want to re-enable logcat for whatever reason, do this:
adb shell
su
mount -o remount,rw /system
echo ANDROIDLOGGER >> /system/etc/tweaks.conf
mount -o remount,ro /system
[HOW TO DISABLE AUTO-ROOT]
Create a file called ".noautoroot" in either /system or /data. This will disable the auto root installation. This example, shows how to remove root completely:
adb root
adb shell
mount -o remount,rw /system
rm /system/xbin/su
rm /system/app/Superuser.apk
rm /data/app/Superuser.apk
touch /system/.noautoroot
mount -o remount,ro /system
sync
reboot
[HOW TO RE-ENABLE AUTO-ROOT]
adb root
adb shell
mount -o remount,rw /system
rm /system/.noautoroot
mount -o remount,ro /system
sync
reboot

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Re: [KERNEL] SpeedMod SGS2 Jelly Bean [K5-1 CIFS ROOT / NO-ROOT CWM5]
Finally... Gonna give it a go.
Edit: at first run, look and feel good..
Sent from my GT-I9100 using xda premium

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Re: [KERNEL] SpeedMod SGS2 Jelly Bean [K5-1 CIFS ROOT / NO-ROOT CWM5]
Yayyyyy, Thx for everything
Enviado desde mi GT-I9100 usando Tapatalk 2

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Thank you! :good:

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now this is amazing ,, sammy jb speedmod kernel,, downloading
go try & report later

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Re: [KERNEL] SpeedMod SGS2 Jelly Bean [K5-1 CIFS ROOT / NO-ROOT CWM5]
@hardcore, thanks for the update
One question: this include MDNIE fix?
Cheers!
Enviado desde mi GT-I9100

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Ohh wow finally thanks i always wanted to have speedmod on the JB firmware was missing it ..!! And finally its here thanks a lot

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great to see that you are back with JB kernel!

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Odp: [KERNEL] SpeedMod SGS2 Jelly Bean [K5-1 CIFS ROOT / NO-ROOT CWM5]
Will we get CWM 6.x.x.x?
TeamXD: Official Beta Tester
Phone: Samsung Galaxy S II
Mods: No MODS
Rom: CyanogenMod 10.1
Kernel: Stock CM's
Battery: Stock 1650
Send via: Tapatalk

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At last!! Thank you very much! Gonna try out

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Umm guys Modern Combat 4 and Most wanted are crashing on the loading screen anything to do with kernel ?

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Re: [KERNEL] SpeedMod SGS2 Jelly Bean [K5-1 CIFS ROOT / NO-ROOT CWM5]
lasic.2000 said:
Will we get CWM 6.x.x.x?
TeamXD: Official Beta Tester
Phone: Samsung Galaxy S II
Mods: No MODS
Rom: CyanogenMod 10.1
Kernel: Stock CM's
Battery: Stock 1650
Send via: Tapatalk
Click to expand...
Click to collapse
Yes possibly later if I have time to integrate it.

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downloading now will report my experience

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hardcore said:
Yes possibly later if I have time to integrate it.
Click to expand...
Click to collapse
g8
in the meantime does using current version mean we can't make proper backups ?
peace

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Re: [KERNEL] SpeedMod SGS2 Jelly Bean [K5-1 CIFS ROOT / NO-ROOT CWM5]
AnubuRe said:
g8
in the meantime does using current version mean we can't make proper backups ?
peace
Click to expand...
Click to collapse
You can still make proper backup with the current version of CWM.
Sent from my GT-I9100 using xda premium

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Re: [KERNEL] SpeedMod SGS2 Jelly Bean [K5-1 CIFS ROOT / NO-ROOT CWM5]
Is your famous sharpness tweak included in the kernel?
Sent from my GT-I9100 using xda app-developers app

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anshmiester78900 said:
Umm guys Modern Combat 4 and Most wanted are crashing on the loading screen anything to do with kernel ?
Click to expand...
Click to collapse
I guess not, try those games after flashing jeboo kernel or any other

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readon1 said:
Is your famous sharpness tweak included in the kernel?
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
I'm pretty sure they are - I've just flashed it and can notice all the telltale signs (background banding vanished etc).
hardcore, I hate to make a feature request, but on Samsung JB ROMs, CRT-OFF animations seem to require some kernel help in order to function consistently. Any chance you could incorporate configurable FB EarlySuspend Delay into the kernel, maybe switchable with something like:
echo FBEARLYSUSPEND 100 >> /system/etc/tweaks.conf?
Thanks