yashsingh1/xdaforums huggingface dataset:
[Galaxy Tab 3 8.0 Android Development] gr8nole:
Calling all brave T310 users.

I need testers for an overclock kernel.

This kernel is overclocked to 1.8 GHz with voltage adjustments available.

Download your favorite CPU control app, give it a test and provide feedback.

https://www.androidfilehost.com/?fid=24399994186368278
[Galaxy Tab 3 8.0 Android Development] :
Wow 1.8Ghz thats high :) hope you can overclock GPU too
[Galaxy Tab 3 8.0 Android Development] sandeep0048:
Will dat work for r device? T311
[Galaxy Tab 3 8.0 Android Development] gr8nole:
No. Maybe get one for T311 tomorrow.
[Galaxy Tab 3 8.0 Android Development] sandeep0048:
Oh gra8!!!
[Galaxy Tab 3 8.0 Android Development] MRC01:
I tried it - unusable. System boots (very quickly!) then after the home screen appears a bunch of system modal dialogs appear saying "X has stopped" where X is many processes from Trebuchet to various apps I have installed.

I made a system + data backup in TWRP before installing, so restored that and it's all back to normal now. Thanks for the effort...

I've messed with this before and found the OEM speed of 1.5 GHz is quite snappy when the CPU governor is set to "performance" - noticeably better than stock yet 100% bulletproof reliable. It seems that the main reason for slow performance with the T310 is the default governor doesn't let it run at 1.5 Ghz often enough - it favors battery life over performance.
[Galaxy Tab 3 8.0 Android Development] enridalco:
Hello, I'm running 1/27 build on T311 and I'm really enjoying it. This rom is so stable I can watch twitch.tv for several hours straight.

The only issue I have is battery management: in previous build when I put it on charge it says charging slowly and it stops at 50-55% then it doesnt charge anymore. I'll test this build and keep you updated.

If the problem will be solved I'll stay with this rom forever :D
[Galaxy Tab 3 8.0 Android Development] xu3sno:
OT

Bro, don't merge pictures (image icon on taskbar in edit mode) on your text post. It will be shown full size image on your post! And, it wasted thread's pages as noted by [MENTION=5120766]satcomranger[/MENTION]

Just take your pictures as attachments by tapping paper's clip icon on taskbar, new window popping up on your browser > upload your pictures from local storage or cloud.

Have a gr8 day!

End of OT
[Galaxy Tab 3 8.0 Android Development] enridalco:
Now it says "7 hours to the end" and probably it's going to increase. I noticed the only way to charge it properly is to reflash the rom.

Am I the only one with this problem?

If I can help in some way let me know it.
[Galaxy Tab 3 8.0 Android Development] sandeep0048:
Even i am this build however, charging is good bt very slow...try changing the usb protocol in dev settings to CHARGING.....as its not chaging automatically when u connect charger....
[Galaxy Tab 3 8.0 Android Development] gr8nole:
That's really strange. It runs perfectly on my T310. Can you post logs?

Anyone else try it?
[Galaxy Tab 3 8.0 Android Development] gr8nole:
T311 overclock kernel has been uploaded for testing.

https://www.androidfilehost.com/?fid=24399994186368534
[Galaxy Tab 3 8.0 Android Development] enridalco:
Alright I guess the problem was that thing. I'll test it these days. Anyway, everytime I reboot it set itself on file transfer protocol. Not a big deal, but if it can be fixed, the rom would be perfect.
[Galaxy Tab 3 8.0 Android Development] sandeep0048:
Ok before testing it i will take a backup of the current rom however, when i will restored the rom will the new kernel go i mean if there will be any issue i will get back to cm kernel dats d rom ... So just wanted to be confirm the kernel will also get restored ?
[Galaxy Tab 3 8.0 Android Development] gr8nole:
Yes, as long as it is part of the backup. You can also, choose to only backup/restore the boot.img only instead of the entire rom.
[Galaxy Tab 3 8.0 Android Development] marek_poland:
Can someone tell how to flash the img file?

Thanks in advance
[Galaxy Tab 3 8.0 Android Development] :
Download flashify on googleplay and you can flash boot.img or .img .zip file
[Galaxy Tab 3 8.0 Android Development] gr8nole:
You can also flash img files in TWRP.
[Galaxy Tab 3 8.0 Android Development] marek_poland:
Oh, that's something new:).

I'm making right now a backup and then I'll flash kernel and test the stability.

Of course I'll let you know:)
[Galaxy Tab 3 8.0 Android Development] :
[MENTION=3034891]gr8nole[/MENTION] i think tab 3 is similar platform to i9100. Right?
[Galaxy Tab 3 8.0 Android Development] gr8nole:
more like i9300 (S3) and N7100 (Note 2) and N5100
[Galaxy Tab 3 8.0 Android Development] :
Ah all of them use exynos 4xxx :D
[Galaxy Tab 3 8.0 Android Development] marek_poland:
So, I've tested kernel and it looks stable(for me). Made stres test without any error. I played Euro Truck Driver and it uses all power of cpu without any problem(now the game is more playable, but the tab is not as good as my G2:)).

If you need more test, tell me:)

Btw I'm using SetCPU to control clock and voltages.

Have to say that is much faster(no micro lag now on system animation/transition)

Oh and forgot, my tab is T310
[Galaxy Tab 3 8.0 Android Development] MRC01:
Tell me if I installed it correctly. I'm an old hand at development but relatively new to flashing mobile devices.

Copy the kernel img file to the device.

Reboot to TWRP

TWRP back up system & data to SD (just in case)

TWRP flash/install the kernel img to the device. TWRP asked which partition: recovery or boot, I picked boot.

Reboot device... got results posted (booted but didn't work).

pwr+home+volUp to force reboot to recovery

TWRP restore system & data

Device back to normal.
[Galaxy Tab 3 8.0 Android Development] gr8nole:
Not sure what went wrong for you. When you restored (after it didn't work), did you also restore the original boot.img or just system and data?

As you can see, the post just above yours seems to reflect the results that I see on mine (that it works well).
[Galaxy Tab 3 8.0 Android Development] Бахрам Байрамза:
Can you build custom kernel for Samsung Galaxy Tab 3.8.0 SM T311 (Cyanogenmod 11)?

Отправлено с моего SM-T311 через Tapatalk
[Galaxy Tab 3 8.0 Android Development] MRC01:
I never had an original boot.img to restore, I simply restored the system & data partitions I backed up. I assumed the boot.img was included in the system partition. I could be wrong.
[Galaxy Tab 3 8.0 Android Development] gr8nole:
boot.img is not part of the system partition. If you didn't restore the original boot.img, then you should still have the overclocked kernel installed. Go to Settings - About Tablet and see what it says for Kernel Version.
[Galaxy Tab 3 8.0 Android Development] gr8nole:
Edit: No
[Galaxy Tab 3 8.0 Android Development] MRC01:
My tablet's at home and I'm at work right now; I'll check this evening and let you know.

If the boot.img kernel is in a boot partition, separate from the system partition, then I don't understand how the behavior I observed is possible - why did my tablet not work after installing the kernel IMG, then it did work after restoring the system & data partitions?
[Galaxy Tab 3 8.0 Android Development] Бахрам Байрамза:
I use Cyanogenmod 11 (lt013g) i am flashing this kernel, bootloop!!!!

Отправлено с моего SM-T311 через Tapatalk
[Galaxy Tab 3 8.0 Android Development] gr8nole:
You are in a CM13 thread. What did you expect?
[Galaxy Tab 3 8.0 Android Development] sandeep0048:
Ok!! Wait!! So if i just back my boot.img i will not have to restore anything accept this img only if anything goes wrong right?
[Galaxy Tab 3 8.0 Android Development] gr8nole:
Correct. The overclocked kernel img is only a boot.img replacement. So, if you don't like it, just restore the backup boot.img.
[Galaxy Tab 3 8.0 Android Development] sandeep0048:
Ok great thanks wait let me try it....
[Galaxy Tab 3 8.0 Android Development] sandeep0048:
[MENTION=3034891]gr8nole[/MENTION]. Yuhoo!!!! I did it flashed the kernel successfully booted also have set kernel to 1.8ghz here are my ss anything more should be done...and yes i do have a query... I have not yet flashed new build so if i flash dat will i have to flash this kernel once again?
[Galaxy Tab 3 8.0 Android Development] gr8nole:
Yes, you will need to reflash the overclocked kernel after each rom update. I will continue to include the standard kernel in the CM zip. Will probably make a new thread for this kernel.
[Galaxy Tab 3 8.0 Android Development] sandeep0048:
Is it not possible to incorporate this kernel to the CM zip??
[Galaxy Tab 3 8.0 Android Development] gr8nole:
It is possible, but I won't force people to use an overclocked kernel (and I won't make two separate CM zips for each device).
[Galaxy Tab 3 8.0 Android Development] sandeep0048:
Ok!! Cool!! But i guess ppl would like to use overclocked kernel as it gives more smoothness to device to play around...so i can continue with this kernel right? means or should I go back to normal till you consider it stable?? What you say?
[Galaxy Tab 3 8.0 Android Development] gr8nole:
I see no reason to go back unless you run into problems. I haven't seen any issues yet. Seems pretty stable to me.
[Galaxy Tab 3 8.0 Android Development] sandeep0048:
Ok let me chk if gives unclean shutdown..will revert tomorrow...thanks again tc
[Galaxy Tab 3 8.0 Android Development] ralfbergs:
Absolutely not. Stability is what matters most for me, I don't play games so I don't need the extra speed...
[Galaxy Tab 3 8.0 Android Development] andre95d:
[MENTION=3034891]gr8nole[/MENTION] It's possible to release the kernel keeping OC disabled as default for who won't use it? Anyone else could tweak voltage and frequency using an app from play store.

Inviato dal mio SM-T311 utilizzando Tapatalk
[Galaxy Tab 3 8.0 Android Development] gr8nole:
I could, but I don't see the point in releasing an overclock kernel with default (non-overclocked) settings. If I flash an overclocked kernel, then I expect it to be overclocked without needing to have an app to do it.

If you don't want to use it, don't worry, it will not be included with my CM builds.

If you want it for the voltage control, then you can still use an app to adjust the cpu speed back down to where you want it.
[Galaxy Tab 3 8.0 Android Development] fercen:
Tested the new build, SIM card not recognised. Attached dmesg and logcat.

Thanks for your continued efforts to get this to work.
[Galaxy Tab 3 8.0 Android Development] satcomranger:
This is absolutely a great approach. It shud be up to the user whether or not to overclock the device. To clock or overclock ... that is the question. Myself I am a lousy gamer and the tablet is working GREAT as it is. I always have the option to make it go faster if and when I want.. right now it is just fine the way it is running either your CM13 or Bliss rom ...or even Resurrection Remix by powermetza .. I am just glad that you developers have kept this device ALIVE ! Thanks
[Galaxy Tab 3 8.0 Android Development] sandeep0048:
Yes dats right and i am sure this device will be alive forever as we have such devs.... [MENTION=3034891]gr8nole[/MENTION] there were no reboots...used performance mode and bfq scheduler not tested with vr or sio
[Galaxy Tab 3 8.0 Android Development] MRC01:
uname -a

Linux localhost 3.0.31-kerNoleCM13+ dave@noletude #1 SMP PREEMPT Wed Jan 27 08:49:02 EST 2016 armv7l

I don't think I have the fast one because Kernel Auditor and No Frills CPU both Max at 1.5 Ghz.

Alright, I tried it again, this time it worked. And I saw that my backups were for boot, system, and data partitions, which explains the problem I had before, and why it was fixed when I restored and rebooted.

I Re-flashed the new kernel from TWRP, now uname -a reports similar to above, but says:

3.0.31-kerNoleOC+ instead of 3.0.31-kerNoleCM13+

And, Kernel Auditor says peak is 1.8 GHz. The tablet works, and there is a small but noticeable performance improvement. But it is not as reliable. Every 5 mins or so an app randomly crashes, and sometimes the entire tablet crashes / reboots while I'm using it.

So, it works but I'm restoring the CM13+ kernel for better reliability.
[Galaxy Tab 3 8.0 Android Development] enridalco:
Hello, I set usb configuration on charge but the tablet is still not charging properly. The only way to charge it is on safe mode, so maybe there is a third party app on conflict, Idk. Here's a list of apps I installed:

Adobe reader

App cache cleaner

Candy crush saga

Facebook

Inbox

Plague inc

Spotify

Subito.it

Telegram

Twitch

Xda premium

I'm on 27/01 build of T311 and flashed open gapps mini
[Galaxy Tab 3 8.0 Android Development] DreamD1:
Using the new overclocked kernel on my T311. May be a marginal speed increase not noticeable in day to day usage.

No issues/heating in half day usage. Will use the overclocked kernel and will update in case of any issues.

Thanks [MENTION=3034891]gr8nole[/MENTION].
[Galaxy Tab 3 8.0 Android Development] TheRisingMyth:
#SALUTE !
[Galaxy Tab 3 8.0 Android Development] DreamD1:
Slow charging is a known issue in this ROM.

Also sound is always lesser than stock ROM.
[Galaxy Tab 3 8.0 Android Development] sandeep0048:
That's strange about sound...in fact I found sound is better than stock more effective loud and clear if don't use audio fx app however, I accept sound is less in speaker than stock but I was just searching for audio mods and found this http://xdaforums.com/nexus-4/themes-apps/mod-dolby-digital-plus-huawei-t2687470/page36 I installed and it works like a charm excellent change in sound. I would recommend you to try this out
[Galaxy Tab 3 8.0 Android Development] Ibbi786:
Are yo sure it'll work? No bootloops?
[Galaxy Tab 3 8.0 Android Development] sandeep0048:
Yes thats working no bootloop download...i have already installed it n working perfectly download the second file rc9 universal
[Galaxy Tab 3 8.0 Android Development] enridalco:
Slow charging is not a problem for me, if it charges. But it doesn't.
[Galaxy Tab 3 8.0 Android Development] gr8nole:
No clue what's going on for yours.

Does it charge correctly on stock rom?

Are you sure you have the KitKat firmware? or are you still on the original jb firmware?
[Galaxy Tab 3 8.0 Android Development] enridalco:
Uh, this is new for me :) I just flashed philztouch recovery, then some roms, then trwp and last some marshmellow roms. What did I miss? What kid of filmware are you talking about?

Before doing all stuff I was on the kitkat stock rom.
[Galaxy Tab 3 8.0 Android Development] gr8nole:
If you had stock KK rom, then you most likely have the KK firmware. Not sure why you can't charge correctly.
[Galaxy Tab 3 8.0 Android Development] enridalco:
When I reflash the rom it charge correctly for the first time. Then it start to have issues. It's sad because it is the very best rom for the T311. Do you have any suggestion on what can I try to fix it? Thanks a lot anyway for the job done. Really appreciated.
[Galaxy Tab 3 8.0 Android Development] satcomranger:
Here are a few suggestions:

1) Make sure you are using the stock charger and cable that came with the tablet. If you do not have those, then double check the charging capabilites (voltage and amperage) of whatever you are using. It must equal or be higher in charging capabilities than the stock charger. Some chargers simply do not have the current (amperage) capabilites to fast then slow charge the device. Not all USB chargers are created equal. Also just double check the cable! I have had cables that 1) Charge great, but doesnt allow data connection 2) Allows data but wont charge, 3) Brand new out of box .. dont work at all

2) What are you seeing as far a slow charging is concerned? Some message on a screen or what?

3) Age of device? Maybe the battery has simply just crapped out and no longer taking a charge like it shud. Check for any bulging in the case of the device . I had an Onda tablet that started to slow / not charge. Few weeks later, the battery swelled up to twice it size and did a nice job of splitting the case itself open. Actually did a nice job of opening the case for me..
[Galaxy Tab 3 8.0 Android Development] enridalco:
the tablet is quite new, it was delivered 1 year ago and yes I'm using stock charger. I thought about a hardware issue, too. But the fact is that "sometimes" it charges properly, and those times are when I flash the rom :) so it must be software. Now I'm in recovery and it seems to charge a bit. Should I try bliss rom? but the last time I flashed it twitch app didn't work properly.. :(
[Galaxy Tab 3 8.0 Android Development] satcomranger:
Really can not help with "Twitch". I looked at the app and honestly ... the app says requirements vary by device in every category. Again, are you seeing a message on the screen or how are you determining "a slow charge"?

It may not necessarily be software. If the battery stats get cleared on a flash, then yes it will be okay right after the flash then go downhill from there.

I have ran Bliss and CM13 and RR by powermetza. I do not see any problems in charging cycles on any of them and i have a refurbed device. Wished i could be of more assistance. Just maybe a case where the stock rom is your best bet.
[Galaxy Tab 3 8.0 Android Development] enridalco:
It says "slow charging (8 hours)" on the lockscreen, but it's not true because in the graph in battery settings che curve of charging reach a plateau around 50%.

How can I reset battery stats without flashing a new rom?
[Galaxy Tab 3 8.0 Android Development] MRC01:
Unfortunately, my T310 isn't reliable at 1.8 GHz. I'm running the new kernel at the OEM 1.5 GHz speed to see if the unreliability is the clock speed or something else in this kernel. So far, it's reliable at 1.5 GHz so it appears to be the clock speed. If it continues to be reliable, I'll try 1.6, then 1.7 to see at what point it becomes unreliable.

Edit: My T310 seems reliable at 1.7 GHz. At 1.8 I get some kind of app crash or reboot every minute or two, but at 1.7 no crashes ... yet.

Edit: problem is, at 1.8 GHz my T310 is so unreliable, half the time it doesn't make it through the boot process long enough for my app (which kicks on at boot) to slow the CPU down to 1.7 GHz. For me to use this, it would need to boot at 1.5, then let my app speed it up.
[Galaxy Tab 3 8.0 Android Development] fathroen:
T311:

Flash oc kernel using flashify. Boot normally without any crash.

Antutu benchmark score: Normal Kernel 24826 vs OC Kernel 28431 (~15% increase)

I cannot thank you enough gr8nole :good:
[Galaxy Tab 3 8.0 Android Development] gr8nole:
Thats pretty much the same increase I saw in testing.
[Galaxy Tab 3 8.0 Android Development] gr8nole:
Ok, new builds are up. (Feb 6).

Once again, I need T315 users to provide feedback about sim/data and provide logcat and dmesg.
[Galaxy Tab 3 8.0 Android Development] Mz8691:
Does this Rom support LOOP Device?
[Galaxy Tab 3 8.0 Android Development] Бахрам Байрамза:
Dear developers please build TWRP 3.0.0 for lt013g

Отправлено с моего SM-T311 через Tapatalk
[Galaxy Tab 3 8.0 Android Development] :
Does new build come with kernel compile using linaro 6.0 toolchain or only bliss rom? Thanks :D
[Galaxy Tab 3 8.0 Android Development] gr8nole:
Only Bliss. This will continue to use what CM provides (standard gcc).
[Galaxy Tab 3 8.0 Android Development] MRC01:
Works great with both kernels (default & OC). 1/27 worked great too. I cant tell any difference. What did you change?
[Galaxy Tab 3 8.0 Android Development] Ibbi786:
Works like charm, thanks [MENTION=4813977]sandeep0048[/MENTION]
[Galaxy Tab 3 8.0 Android Development] gr8nole:
Mostly just CM updates with a couple selinux updates.

T315 had another change to try to get sim working.
[Galaxy Tab 3 8.0 Android Development] sandeep0048:
Welcome bro!! Enjoy... There is another link of the same guy DOLBY ATOMS but for some reasons the aouns is boosted bt app crashes so dint used it might M issue as works on L
[Galaxy Tab 3 8.0 Android Development] sopi89:
how to upload the kernel?
[Galaxy Tab 3 8.0 Android Development] sandeep0048:
Can the Bluetooth issue be fixed ??
[Galaxy Tab 3 8.0 Android Development] MRC01:
Since my T310 doesn't run reliably at 1.8 GHz, I use the stock kernel. Switching to the interactive governor with input_boost 1 and go_hispeed_load 75 makes it more responsive at the stock 1.5 GHz speed.
[Galaxy Tab 3 8.0 Android Development] andre95d:
It's possible that I'm the only one who's getting freezes and kernel panics due to bfq cpu scheduler?!

The problem begun when tohenk decided to switch to bfq by default... I uploaded in his thread some kmesg dumps but (at least for me) it's still an unresolved problem.

Last hour I got the 6th dump in a week of testing but I couldn't reproduce the kernel oopses anymore (like I used to do with lollipop build).

I'm uploading them anyway, meanwhile I switch to sio.

https://www.dropbox.com/s/uvek0vhf1tweifu/se.mumu21.bootlog.zip?dl=0

Inviato dal mio SM-T311 utilizzando Tapatalk
[Galaxy Tab 3 8.0 Android Development] fazhar.asean:
I'm on T311 rom version 20160201

I found little problem this rom in my device

Sometime my screen rotation just lock in 1 position, i mean when my screen in landscape cannot rotation to portait and otherwise, sometime can rotation normaly but if i use a long time in landscape the screen cannot back to portait.

My signal lock in 2G cannot change to 3G.

How i can fix this?

Before i Flash this rom iam using Resurrection Remix 5.6.2, i read in the first page need kitkat required rom, must i back to kitkat rom before flash this rom so can fix this problem?

For all this rom running smoth and cool in my device, now i try to install version 20160206. :laugh:
[Galaxy Tab 3 8.0 Android Development] MRC01:
BFQ is the default on my T310 and works fine. Good performance, no crashes or other problems.
[Galaxy Tab 3 8.0 Android Development] Shane2:
I've been using Tohenk's 5.1.1 ROM on my T-315 for a while now and it works nicely, but this ROM just caused my device to boot loop (and yes I tried wiping and clean installing the ROM)
[Galaxy Tab 3 8.0 Android Development] gr8nole:
Thanks [MENTION=4468805]MRC01[/MENTION] for the donation. It is very much appreciated. :)
[Galaxy Tab 3 8.0 Android Development] Aliendex:
Hello, thanks for this beautiful work.

I can't rotate the screen even if it is enabled in settings (0,90,180,270).

Is this normal?

Cm13 with opengapps 6.0 pico
[Galaxy Tab 3 8.0 Android Development] sandeep0048:
Also Change settings in launcher as well...
[Galaxy Tab 3 8.0 Android Development] gr8nole:
Like sandeep0048 said, you need to enable launcher rotation. While on the homescreen, hit the menu button, then select the 3-dots to open the launcher settings and enable rotation.
[Galaxy Tab 3 8.0 Android Development] gr8nole:
If you want me to look for a fix, then you have to provide logs.
[Galaxy Tab 3 8.0 Android Development] gr8nole:
I haven't found anything yet.
[Galaxy Tab 3 8.0 Android Development] Andry7:
Hey! As you know the camera recording is a common problem of 99% of custom roms with lollipop or marshmallow but... in last days some resolved the issues. For example see this post about omnirom of S3 mini:

http://xdaforums.com/showpost.php?p=65213755&postcount=1428

My fingers are crossed...
[Galaxy Tab 3 8.0 Android Development] Ibbi786:
Mine are crossed too, [MENTION=3034891]gr8nole[/MENTION] ? BLISS too![emoji111] [emoji119] [emoji122]
[Galaxy Tab 3 8.0 Android Development] Pattagghiu:
in my case, this problem was fixed with this http://xdaforums.com/showpost.php?p=65024556&postcount=354

I think this fix is needed in all builds of 2016.

Btw, with the last build i'm still having some problem with wifi drops, am i the only?

(even it seems to be yet unresolved on cyano forum.. http://forum.cyanogenmod.org/topic/120233-cm13-wifi-dropping/ )

nothing critical, but in many cases the wifi drops while using it or it is not connected when waking up the device from sleep.

being a cyano issue i think we have only to wait :)

Very good rom. Thanks.
[Galaxy Tab 3 8.0 Android Development] gr8nole:
S3 mini is not a similar device to ours (different soc than regular S3)
[Galaxy Tab 3 8.0 Android Development] yerob:
Camera crash is back!!! When i use camera in google translate.

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