Galaxy A3 (2016) have CPU exynos 7580 with 8 cores and 1.6GHZ (inlcude proof link)

[sekil]

Hi all.

Samsung Galaxy A3 (2016) SM-A310F phones have Exynos 7580 Octa core (8 cores , two clusters with 8 cores Cortex A53) cpu and can work on 1.6 Ghz. I'm find way for activate second cluster with other 4 cores and speed up for 1.6Ghz.

IT IS NECESSARY:
Activate Developer Mode then go to
Settings -> Developer Options -> OEM unlocking
AND ENABLE OEM UNLOCK FIRST OR YOU MAY ENCOUNTER 'BLOCKED BY FRP LOCK' WHEN FLASHING.

You flash this at your own risk. Please ensure you have the stock ROM to hand downloaded from SAMMOBILE in case of problems. This will trip the knox counter.


To activate 8 cores and 1.6 Ghz we need first install root with
https://drive.google.com/file/d/0B95gNRt0IyAMSU1LTFVpY01zT3c/view?usp=sharing
Then install custom recovery (only for backup old boot.img) from this thread
http://forum.xda-developers.com/sam...ent/recovery-samsung-sm-a310f-fd-y-m-t3317339
and afrer flash my modified boot.img
Mod edit
Link removed

thats all.. Thank

 

[ashyx]

You need to post a comparison with and without your kernel otherwise it proves nothing.

 

[racht]

original kernel A3

 

[ashyx]

Still only 4 cores running according to the last image.
Have you got one that shows all 8 cores in action?

 

[sekil]

man, exynos governor disable last 4 cpu when not needed high perfomance. But i'm try take snap.

P.S. I'm add snap - 8 cores active (while running geekbench 3)

 

[Bayoe04]

thanks.. its work

 

[kvern]

Thanks a lot for this, seems to go to be true.

Is there any cons to perform this ? like Battery draining much more faster or unstability of the system ?

 

[mLawrenci]

Any downfalls?

Thanks a lot for this.
One question though. Are there any downfalls? Even though we could always go back to stock, would be good to know if activating 4 additional cores that were previously inactive has any effect on the phone. Like why are they even inactive in the first place?

:good:

 

[qwsdert4]

no discernible performance gain. cpu-z always show the last 4 cores as "stopped".

 

[ashyx]

no discernible performance gain. cpu-z always show the last 4 cores as "stopped".

Have you tried loading the cpu's with something intensive?

 

[qwsdert4]

Have you tried loading the cpu's with something intensive?

I will try, since sliding the screen would not put any hard burden on the cpu.

I suspect that the custom kernel only unlock 1.6GHz and also reveals the true name of the CPU. However the other four cores are still locked by some means. It would be great if the other four cores are unlocked, since it is such a beautiful little handset

 

[qwsdert4]

confirmed, working (by ticking all cores in Kernel Adiutor home page). God this phone is fast now! Thank you very much OP

 

[bbfl]

Step-bg-step

Hey guys,
Thanks a lot for this but would it be possible for someone to write more detailed steps in unveiling the 8 cores?
Thanks

 

[Aceseatleon]

Can I enable OEM, root and install your boot(via odin) without custom recovery? Sorry if the question is stupid but I am new to this things.

 

[Noryakky]

This is my geekbench without and with installed this mod, to compare for you, guys- GOD, this phone is rly fast now! Proof:

 

[Noryakky]

OP please delete this post #16, I dubled it.

 

[fook42]

Can I enable OEM, root and install your boot(via odin) without custom recovery? Sorry if the question is stupid but I am new to this things.

yes.. you dont need the custom-recovery like TWRP or CWM... it's only necessary for backing up your device before you flash the new boot.img

 

[Aceseatleon]

Info

After flushing will it be like factory reset or all of my data will be in my phone?
Why did you mentioned that custom recovery is needed for backup (for what) or it is must to backup the phone i case something to go wrong?

 

[Noryakky]

After flushing will it be like factory reset or all of my data will be in my phone?
Why did you mentioned that custom recovery is needed for backup (for what) or it is must to backup the phone i case something to go wrong?

U need custom recovery for backup boot sector, just in case when something goes wrong with flashing that boot

 

[Aceseatleon]

What about the data. Reset or everything will stay intact.?