Galaxy Core LTE (g386f) "Last hope" Kernel - Update 25.01.2016

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Agasharr

Senior Member
Oct 3, 2013
77
31
www.krafciarka.pl
Kernel compiled with Linaro GCC 4.9.4-2015.06 Toolchain

Update 25.01.2016
overclock reworked - should be more battery friendly (available frequency:
1612000 Hz
1410500 Hz
1209000 Hz
1007500 Hz
806000 Hz
604500 Hz
403000 Hz
201500 Hz
added CPU Governor (lionheart, nightmare)
ntfs read/write support

Unpack and flash with Odin:
boot5.zip

Update 15.10.2015
Changes:
cpu overclocked to 1612 MHz (default clock is 1196 MHz)
added CPU Governor (userspace, lionheart, nightmare)
added I/O Scheduler (sio - now default, deadline)

combined with modded rom
http://forum.xda-developers.com/gal...p-galaxy-core-lte-g386f-stock-modded-t3223353
provides init.d support

Unpack and flash with Odin:
G386FXXUAOA1_G386FPRTAOD1_PRT 4.zip

Added: 20.12.2015
I decide to clean this post a bit. If You need only kernel, simply unpack it from G386FXXUAOA1_G386FPRTAOD1_PRT 4.zip
 

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Last edited:

Agasharr

Senior Member
Oct 3, 2013
77
31
www.krafciarka.pl
Hi, in next kernel i'll add:
CPU Governor (userspace, smartassV2)
I/O Scheduler (sio, deadline)

Added:
smartassV2 had some issues (running always at max speed) and was removed
lulzactive seems to have same issue, it's still in kernel but i'll probably remove it
 
Last edited:

Agasharr

Senior Member
Oct 3, 2013
77
31
www.krafciarka.pl
Hi dude i don't understand all. Is G386FXXUAOA1_G386FPRTAOD1_PRT.zip usable for europe users? I'm french

I'm not sure it safe to flash boot.img from a different firmware and i advice to prepare own boot.img as described in first post. Maybe stefguer can tell.


Nor am I. But i see no sense in including all of them. Mostly there are based on Ondemand, Conservative or Interactive (as described in link You provided). So it's a matter to choose the best of it's type and tweak the settings to our device.
 

stefguer

Member
Jan 17, 2009
37
2
@Agasharr I agree with you, I ignore which is the best for us. By the way, this list may be outdated since 2012, maybe some new governors exist now ? @benplay G386FXXUAOA1_G386FPRTAOD1_PRT 2.zip flashed OK today with odin 3.10.6 for my French G386F too.
 
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stefguer

Member
Jan 17, 2009
37
2
Hi Agasharr,
With overclock 1.612 GHz, I get Antutu score 19246 with ondemand governor.
I guess next step is upgrade to Android kitkat, isn't it ?
Thanks !
 

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Agasharr

Senior Member
Oct 3, 2013
77
31
www.krafciarka.pl

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Last edited:

bobo159951

Member
Sep 1, 2014
25
2
You gave me hope one more time in the Galaxy Core LTE !
However I have some questions... I'm not pretty good about android and the developpement of it and after and afeter reading many tutoriels I don't succed in getting mu boot.img : so how do you made ?
Hoping one day my phone will be with Cyanogen ^^
 

Agasharr

Senior Member
Oct 3, 2013
77
31
www.krafciarka.pl
Hi, You want to flash kernel?
If so download G386FXXUAOA1_G386FPRTAOD1_PRT 3.zip
from the first post, unpack and flash it with odin (tool to flash samsung's firmwares)
If You want to prepare own boot.img just to be sure it's safe. You need to download samsung firmware (same version that is in your G386F), and follow the procedure described in the opening post.
 

bobo159951

Member
Sep 1, 2014
25
2
Hi, You want to flash kernel?
If so download G386FXXUAOA1_G386FPRTAOD1_PRT 3.zip
from the first post, unpack and flash it with odin (tool to flash samsung's firmwares)
If You want to prepare own boot.img just to be sure it's safe. You need to download samsung firmware (same version that is in your G386F), and follow the procedure described in the opening post.

I will try ;)

Thanks a lot for your job for this device :good:
 

AmineI

Senior Member
Dec 14, 2014
68
35
Nice ! Well, i think i won't try your kernel since my battery is not really in a good state and overclocking would make it worst, but do you think you could add OTG support in the kernel ? It seems the material and rom are OTG ready ('drivers' etc) but the kernel isn't
 

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  • 6
    Kernel compiled with Linaro GCC 4.9.4-2015.06 Toolchain

    Update 25.01.2016
    overclock reworked - should be more battery friendly (available frequency:
    1612000 Hz
    1410500 Hz
    1209000 Hz
    1007500 Hz
    806000 Hz
    604500 Hz
    403000 Hz
    201500 Hz
    added CPU Governor (lionheart, nightmare)
    ntfs read/write support

    Unpack and flash with Odin:
    boot5.zip

    Update 15.10.2015
    Changes:
    cpu overclocked to 1612 MHz (default clock is 1196 MHz)
    added CPU Governor (userspace, lionheart, nightmare)
    added I/O Scheduler (sio - now default, deadline)

    combined with modded rom
    http://forum.xda-developers.com/gal...p-galaxy-core-lte-g386f-stock-modded-t3223353
    provides init.d support

    Unpack and flash with Odin:
    G386FXXUAOA1_G386FPRTAOD1_PRT 4.zip

    Added: 20.12.2015
    I decide to clean this post a bit. If You need only kernel, simply unpack it from G386FXXUAOA1_G386FPRTAOD1_PRT 4.zip
    1
    @Agasharr I agree with you, I ignore which is the best for us. By the way, this list may be outdated since 2012, maybe some new governors exist now ? @benplay G386FXXUAOA1_G386FPRTAOD1_PRT 2.zip flashed OK today with odin 3.10.6 for my French G386F too.
    1
    Update: 25.01.2016, details at the first post.
    If You want to reduce cpu speed, You can use an app or an init.d script, example:
    Code:
    #!/system/bin/sh
    if [ -e /data/local/cpu_protection ] ; then
      echo failed > /data/local/cpu_failed
    chmod 777 /data/local/cpu_failed
      exit
    fi
    
    echo applied > /data/local/cpu_protection
    chmod 777 /data/local/cpu_protection
    chmod 666 /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
    echo "ondemand" > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
    chmod 666 /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
    echo "1602250" > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
    chmod 666 /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq
    echo "201500" > /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq
    
    chmod 666 /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor
    echo "ondemand" > /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor
    chmod 666 /sys/devices/system/cpu/cpu1/cpufreq/scaling_max_freq
    echo "1602250" > /sys/devices/system/cpu/cpu1/cpufreq/scaling_max_freq
    chmod 666 /sys/devices/system/cpu/cpu1/cpufreq/scaling_min_freq
    echo "201500" > /sys/devices/system/cpu/cpu1/cpufreq/scaling_min_freq

    This script can change cpu governor, min and max cpu speed.
    You just need to edit it to suit to your needs.
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