yashsingh1/xdaforums huggingface dataset:
[T-Mobile Samsung Galaxy S II SGH-T989] acefsw:
Now, I guess we should start discussing sysctl tweaks :)
[T-Mobile Samsung Galaxy S II SGH-T989] waresoft:
That sounds great. I would love to learn more about them! :)
[T-Mobile Samsung Galaxy S II SGH-T989] hatememarkz:
Agreed

HERCULES S²
[T-Mobile Samsung Galaxy S II SGH-T989] normanx:
Agreed also.
[T-Mobile Samsung Galaxy S II SGH-T989] acefsw:
Okay, we could Google ala hatememarkz :) :http://bjdean.id.au/wiki/LinuxMemoryManagement or I could mention that the value of vm.vfs_cache_pressure determines inode, dentries, and page caches in memory, so the lower the number, (android must be >0), will keep apps you are using in memory longer. In many kernels it is expressed as a percentage and is set to 100 default and is supposedly to be fair as to when it reclaims memory from page cache and swap cache. My understanding so far, as Android differs from Linux quite a bit, is that android supposedly does not swap cache- still looking into this. Anyway, lowering the value will increase responsiveness of whatever app(s) is in memory. Too low and it will bog or lock/crash the system as it runs out of memory available. Play around, I would go no lower than 20 or 30 YMMV. I use Rom Toolbox Pro to play around. Generally, I keep it at 100 except for testing. Of course, this ratio is dependent on others, but probably has most impact alone.
[T-Mobile Samsung Galaxy S II SGH-T989] waresoft:
After doing some research, I don't see any real tangible benefit from using the sysctl tweaks on a phone. I see benefits in a server environment with large amounts of RAM and a large file system to keep cached in RAM for optimum performance. I believe that the Min Free settings are still going to be the most important for performance when you find the sweet spot. It think I did for the T989.

I did notice my phone was slightly quicker when reducing the vm.vfs_cache_pressure however I couldn't get it out of my mind, that as the RAM fills up with this file system cache there will be no RAM for my apps to run and the phone will become laggy or flat out unresponsive. Not what I want.

With that said, if there was a formula for setting these settings based on the amount of RAM you have, then there may be some benefit to it. Does such a formula exist?
[T-Mobile Samsung Galaxy S II SGH-T989] acefsw:
Excellent question. There probably is something like a "formula" and most likely it has already been implemented on your phone. Most tweaks for build.prop or sysctl are pretty useless, and some do actually nothing. There has been a lot of discussion about, but it is hard to find decent sources in the android community without going directly to Google devs. I guess we could look at the sysctl settings for phones with either 512mb or 2gb or more ram and compare to our own and see if there are differences and if so derive the formula from there. Not sure if there is scalability issues, plus different cores may effect it. But in reality I have no idea.

My understanding of min_free is that it forces the number of minimum of reserved free bytes https://www.kernel.org/doc/Documentation/sysctl/vm.txt explains sysctl fairly well. I tend to Linux sources because pretty much every aspect of the kernel/system/etc has been much discussed over the years. That and I have toyed with Linux systems a bit. I run an older box that multi-boots several flavors of Linux just for fun, so just a bit more familiar to me. I'm an electrician, not a dev or coder. Last time I coded was BASIC, Fortran, and some Cobol in the 1970's very early 80's in Jr high and HS.

---------- Post added at 11:18 AM ---------- Previous post was at 10:26 AM ----------

Also, waresoft, if you like tinkering you can make apps for your phone using your phone. There is a post in xda http://xdaforums.com/showthread.php?t=2179738 that discusses it and pocketables covers it comprehensively http://www.pocketables.com/2013/03/overview-of-pocketables-tasker-articles.html
[T-Mobile Samsung Galaxy S II SGH-T989] waresoft:
Thanks for the info.
[T-Mobile Samsung Galaxy S II SGH-T989] jacoballen22:
I am about to switch to CM. Biggest things for me are battery life and performance. I average around 13 hours. I don't know where I'd find all the settings to change everything listed.
[T-Mobile Samsung Galaxy S II SGH-T989] bobiscool07:
THe application name is mentioned in his posts.
[T-Mobile Samsung Galaxy S II SGH-T989] acefsw:
Personally, I use ROM Toolbox. It is a comprehensive root tool-- has a root browser, app control, CPU, change boot animations , etc.-- and is ver stable/ reliable. Min_free settings in that app would be Performance>Task Manager>then swipe right e.g. it a panel on the left side of task manager.
[T-Mobile Samsung Galaxy S II SGH-T989] acefsw:
Just another FYI for fun stuff you can do. Download DriveDroid in playstore https://play.google.com/store/apps/details?id=com.softwarebakery.drivedroid&hl=en and you can use your phone as a USB stick to boot various flavors of Linux on your desktop or laptop. They list the most common flavors or you can download an iso of your liking.
[T-Mobile Samsung Galaxy S II SGH-T989] waresoft:
I tried several times to unsuccessfully boot my computer with it. I like the idea. I will keep trying out new versions until I can get it to work. This would be great to have for doing virus removal/repairs etc on PCs.
[T-Mobile Samsung Galaxy S II SGH-T989] acefsw:
I have it booting my netbook. I did the set up wizardry thing, changed the boot order on the netbook in bios, and was able to boot Slitaz. I joined the Google+ group for his app as a beta tester and am now using 0.9.4. Some people had problems with Superuser, but you shouldn't have that problem if you are on cm 10.2, ( which is what I'm on now).
[T-Mobile Samsung Galaxy S II SGH-T989] waresoft:
I am using CM 10.2. I didn't change my boot order. My BIOS allows be to choose the boot device by pressing F12 on startup. I selected my phone. There were two options. SGH-T989 and SGH-T989/Card. I tried one, it said there was no boot device. Tried the other and it went right into my Windows.
[T-Mobile Samsung Galaxy S II SGH-T989] acefsw:
Mine shows up as SGH-T989 card. Did you see two usb symbols when you were doing the setup in computer e.g. as computer drives?
[T-Mobile Samsung Galaxy S II SGH-T989] waresoft:
Yes. They were like 3.78 MB in size I believe.
[T-Mobile Samsung Galaxy S II SGH-T989] waresoft:
I just tried it again. I used a live Ubuntu ISO. Booted right into Windows.
[G Pad 8.3 Q&A, Help & Troubleshooting] Cruzius:
Hello!

I have an Problem with the Mahdi-Rom 2.4.

An App called "Auto Hide Soft Keys" won't work with my Tablet anymore and says it doesn't support this hardware.

But this App works with the Stock Rom.

I think the Problem is the "Device Name".

With Stock-Rom it is shown in the Play Store as "LG G Pad 8.3".

With Mahdi Rom 2.4 "LGE LG-V500".

Anybody know how this could be solved?

Can i change this name anywhere?
[Nexus 7 (2013) Q&A] gooner4life:
Hi all,

I tried to root my Nexus 7 according to this youtube link

http://www.youtube.com/watch?v=X1cD-JXRGX8

During the step to install" super SU", i copied the the "unzipped" version of the file into the device, and couldn't install it as per video.

So i tried restating the device to try to copy the right file to the device, but now it just stucked at the loading screen (circle & square alternating, not the X screen) and i couldn't power it off too.

What should i do? Help please! Thanks!
[Nexus 7 (2013) Q&A] username4this:
Is it still recognised by the computer?

As in, if you plug it in with USB does it appear on your device manager?

Anyway, I would recommend using Wug's Toolkit (http://xdaforums.com/showthread.php?t=2389107) to sort you out.

It's pretty straight forward so you should be able to fix it easly.
[Nexus 7 (2013) Q&A] gooner4life:
No it's not recognized by my PC too. So the toolkit won't be useful too i presume?

Any other options? Just wait it out till the battery is dead?
[Nexus 7 (2013) Q&A] username4this:
Your best bet is to try them.

Also give a look here:

http://xdaforums.com/showthread.php?t=2544361
[Nexus 7 (2013) Q&A] wantabe:
Long press the power button and that will make it reboot, as soon as the screen turns OFF, hold down the volume down button and it will boot into the bootloader, use the volume button to select recovery, press the start button to go into recovery. In recovery (TWRP) click on wipe then do a factory reset. If it is off, press and hold volume down and power button together and that will get you to the bootloader screen.
[Nexus 7 (2013) Q&A] gooner4life:
This whole rooting process confuse me. So you're saying after doing this, just start over the rooting process as per youtube link again or continue the step where i did wrong?

P/S is it easier to root using that rootkit as per post above?
[Nexus 7 (2013) Q&A] wantabe:
You're two thirds of the way there. You supposedly have the bootloader unlocked, you can see that when it boots up at the "Google" screen the lock will be unlocked, It will also say unlocked in the bootloader screen. And you should have TWRP installed if you tried to flash supersu. So.. at this point, you need to flash the supersu "zip" in TWRP. Before you start making any changes I would recommend making a backup in TWRP.

What you are using is part of the android sdk (adb/fastboot), the platform-tools folder with the usb drivers moved into it, not really a toolkit. I've never used a toolkit so I can't say a lot about them, I have the complete sdk installed, you were using part of it. Were you able to boot into recovery and do a factory reset?
[Nexus 7 (2013) Q&A] Jayfeather787:
You should not have followed that guide.

1st: Go to here: http://xdaforums.com/showthread.php?t=1538053. Download the zip. DO NOT UNZIP.

2nd: Make sure that ADB is set up on your computer. To download, go to https://developer.android.com/sdk/index.html. Follow the instructions to install. Open the SDK (should be in C\development\adt-bundle-windows-x86_64-20131030\, or whereever you installed, it is an execultable file. It should have a little green android logo next to it, and it is called "SDK Manager". It will take a couple seconds to open. Once it has opened, install "Android SDK Platform-tools".

3rd: Move the Super SU zip into the C\development\adt-bundle-windows-x86_64-20131030\sdk\platform-tools, or wherever you installed the platform-tools. It should be inside the SDK folder. Just paste the zip there.

4th: Boot your Nexus 7 into recovery. Push and hold the power button and volume down button at the same time and boot into the bootloader.

5th: Boot into recovery. Do so by pressing the power button for a while, and eventually it will shut off, as mentioned above.

6th: Press and hold power button and volume down to boot into bootloader. Once in the bootloader, push the volume down button until recovery is selected.

7th: Boot into recovery by pressing the power button.

8th: In recovery, wipe the cache and dalvik under the advanced wipe in the wipe menu. Go back and click install. Click "apply from sideload", or something like that, I forgot the exact wording. Connect your tablet to your computer through a USB cable.

9th: Go back to your computer. Go to C\development\adt-bundle-windows-x86_64-20131030\sdk\ or wherever you installed the sdk. Press shift, and then right click on the folder that says "platform-tools". In the menu, click "open command window here".

10th: Copy the exact name of the supersu zip file in the platform-tools folder.

11th: In the command window type: adb sideload UPDATE-SuperSU-v1.86.zip

12th: Press enter. The name of the super su file may not be exactly that, but similar to it.

13: Reboot your tablet.

I don't know if you are a noob, or very experienced, so I made this as noob-friendly as posisble, sorry if I offended you in any way. Here are some pictures.
[Nexus 7 (2013) Q&A] gooner4life:
I did manage to boot into bootloader screen 7 the option to start, but same thing happen, it still stucked at the "4 colors" circle screen. Problem is guys i couldn't get the PC to recognise my tablet even in the bootloader screen. What should i do now?
[Nexus 7 (2013) Q&A] gooner4life:
Ok i can boot to recovery mode and get to TWRP. But as my post above the superSU is not in zipped form, what should i do then? And i couldn't copy the zipped verison into the tablet as my PC won't recognise the tablet. Do i choose wipe to start all over again from scratch? (assuming that's what wipe will do?) or browse into subfolder of superSU "i.e. app, bin, etc, xbi" and install form there manually? Dam im confused without knowing any basic of rooting...I thnk you're the closest to understanding where i am now, please help! Thanks!
[Nexus 7 (2013) Q&A] gooner4life:
ok guys i think my N7 got some serious problem!!

Now it would just stucked on the Google screen and won't even go to the recovery mode!!!

What should i do now to reset it back to original state now?!!
[Nexus 7 (2013) Q&A] wantabe:
Try and do a factory reset. Just remember a factory reset is not a restore and it will not put your device back to the way it was before you tried to root. A factory reset will wipe the cache and data, not the system. Any changes to the system, kernel or recovery that you made will still be there after a factory reset. Go ahead and dot a reset and let's see if that will get your N7 to boot up. And we can go from there.
[Nexus 7 (2013) Q&A] gooner4life:
I might have stuffed up here mate, you might have missed my last post. I did a factory wipe, and tried to use the toolkit as suggested, and i'm now im deeper water where i can't even get into recovery mode. Everything just stucked between the "Google" screen and the "volume down + power" screen....gosh i really feel stupid now...Any more suggestions?
[Nexus 7 (2013) Q&A] wantabe:
I did miss your last post. Holy crap what are you doing? You went from knee deep to drowning. :D

---------- Post added at 04:17 AM ---------- Previous post was at 04:16 AM ----------

What you're saying is that you can't get to the bootloader screen now?
[Nexus 7 (2013) Q&A] gooner4life:
Yep I'm serious **** now! Any more experts here have any idea? Or do i have to bring it to local mobile shop to get it fixed? Is Google able to help ?
[Nexus 7 (2013) Q&A] wantabe:
Anyway... getting supersu installed is a non-issue if you can't get it to boot up. When you were trying to download supersu what you were looking for was the installable zip at Chainfires thread."CWM / TWRP / MobileODIN installable ZIP: http://download.chainfire.eu/supersu."
[Nexus 7 (2013) Q&A] gooner4life:
Nah i was just using the SuperSU zip i downloaded as per youtube link. The problem is my PC cant detect my tablet and i can't do sh**t!

Any manual hardware reset option on N7?
[Nexus 7 (2013) Q&A] wantabe:
If a factory reset didn't clear it up you might be able to get away with just flashing the system image. Long pressing won't make it reboot?
[Nexus 7 (2013) Q&A] gooner4life:
I'll tell you how the tablet is right now, and hopefully you have some ideas where to go from here.

Atm, when i turn on and off the tablet.

but when i turn it on, it will go straight to the google screen with lock image at the bottom, then it will just stuck there

I tried going to recovery mode, and it won't come up with TWRP , and after a black screen, it will go back to boot screen

Tried "restart bootloader", did nothing too, just gone back original boot screen .

So now what? Gosh did i just break my brand new N7?
[Nexus 7 (2013) Q&A] gooner4life:
I'll tell you how my tablet is right now, and hopefully you have some ideas where to go from here.

ATM, I can turn on and off the tablet., but my PC won't recognise it

However, when i turn it on, it will go straight to the 'Google" screen with lock image at the bottom, then it will just stuck there

I tried going to recovery mode, and it won't come up with TWRP as before, and after a black screen, it will go back to boot screen

Tried "restart bootloader", did nothing too, just gone back original boot screen .

So now what? Gosh did i just break my brand new N7? :crying:
[Xperia Play Q&A, Help & Troubleshooting] enerp8:
Hello all,

I'm having a very annoying problem with my device (R800i). It happens that when I open the gamepad, the phone works normally.

But when I close it, the screen goes dark but the phone continues to work, only there is no light in the screen!

What might be the problem and how could be solved?

Thanks in advance.
[Xperia Play Q&A, Help & Troubleshooting] saqibkhan:
seems like a flex cable problem.. but wait for others to reply to be sure.. as I am not that sure.. but seems that only.
[Xperia Play Q&A, Help & Troubleshooting] CriGiu:
Yeah, flex cable for sure.

You should order a new one and repair the Play by yourself (I've done it some time ago, thanks to Bakisha, and since my flex has broken again - 3 days ago - I ordered 2 new ones), since it's not that hard.
[Xperia Play Q&A, Help & Troubleshooting] enerp8:
Thank you both.

I did some research myself and I also think it's the flex cable.

I've seen a tutorial on the net and I think it's a little bit riski doing it by myself. I will try to find a Sony technical assistance in my area. If not I will do it myself.

Do you recomend any tutorial in particular?
[Xperia Play Q&A, Help & Troubleshooting] CriGiu:
Not really, you just have to know how to properly disassemble the Play.

Btw, that's what Bakisha recommanded me to watch:
[Nexus 7 (2013) Q&A] brenty108:
Hmmmm OK this is strange and troubling my nexus is not readily responding to my calling to wake him up with the power button. It wakes up like in 5-10 seconds. Crazy right? Anyone experienced/experiencing the same?
[Nexus 7 (2013) Q&A] brenty108:
Solved
[Nexus 7 (2013) Q&A] aigaming:
Always say how,it will be usefeull for other readers with same problem ;)
[Nexus 7 (2013) Q&A] brenty108:
Yeah the bit torrent app was the culprit while running.
[Nexus 7 (2013) Q&A] bluecarbon:
Lol, was about to suggest that when I saw the thread title. I had the same issue.
[Xperia Z Q&A, Help & Troubleshooting] kashifn00r@hotmail.com:
Hello friends,

I was trying to change the customization code of my mobile to the one in US in order to get the 4.3 updated earlier then it is scheduled for MEA. After rooting the phone (using http://www.mgyun.com/) I used a root explorer to edit the build.prop file by changing the customization number as follows;

From:

Ro.semc.version.cust: 1270-7937

'ro.semc.version.cus_revision': R5B

to:

Ro.semc.version.cust: 1271-0119

'ro.semc.version.cus_revision': R1C

and rebooted my phone.

Since then my phone is gone into a loop, it start normally until the sony screen hangs there and the restarts.

Is it possible to restore my phone some how? Or is it gone for good now?

Thanks and best regards,

Kashif
[Xperia Z Q&A, Help & Troubleshooting] Mackay53:
Flash a 4.2 or 4.3 rom FTF using flashtool
[Xperia Z Q&A, Help & Troubleshooting] kashifn00r@hotmail.com:
bootloader is not unlocked

when my device is not booting how can i unlock the bootloader?
[Xperia Z Q&A, Help & Troubleshooting] gripfly:
Why you wanna unlock your bootloader?

Just make a clean flash(example JB 4.3) with flashtool and your phone will boot again. That's what Mackay53 said.

The Firmware you find here on xda and how to flash with flashTool also.
[Xperia Z Q&A, Help & Troubleshooting] kashifn00r@hotmail.com:
can you please advise

can you please advise wqhich flash tool i should use and where can i find a firm ware for 4.3? apologies and thanks in advance
[Xperia Z Q&A, Help & Troubleshooting] gripfly:
http://xdaforums.com/showthread.php?t=2240614
[G2 Q&A, Help & Troubleshooting] Yamahar6riding:
I'm curious as to if, anyone has tried the BAM ROM 2.0? They just uploaded the 20140101 Build and I am using PA now. I ask for feedback because I was unable to locate a thread on the LG G2 forums for them as of yet. Also, the file size is 333MB so was thinking maybe they included their own GAPPS package with it. Anyways here is the link

Dredd Edit done
[G2 Q&A, Help & Troubleshooting] Yamahar6riding:
I just flashed and to get it to boot properly, you need to install Aysir's PAEK kernel after flashing the ROM. And don't flash GAPPS. Looking in to SuperSU at the moment. Looks like I need to flash that as well. All in all, it looks good so far.
[G2 Q&A, Help & Troubleshooting] Clark Joseph Kent:
Member, Due to this ROM being Ban from XDA, I have edited your posts; why you might ask....the maker of this ROM, felt the need NOT to comply with XDA policy on ROM's and hence his banning to include his Work....so please do not post any bam/jellybam etc.

Thread Closed and links removed. Happy New Year.
[HTC First] russian392:
I tried flashing JMZ's kernel, flashed just fine and booted up well, the only thing, wifi didn't work.

So i went to my back up and restored the boot, wifi still didnt work.

currently i tried a full wipe with system, and going to try to restore a FULL back up.

if that doesnt work, can annyone upload the stock kernel please? or atleast tell me how to get it and get my wifi up and running, i dont have a data plan so i dont have internet on it what so ever.
[HTC First] russian392:
restore didnt work...

any ideas on how to fix this
[HTC First] russian392:
FIXED IT hahaha

i wanted to wipe the entier phone and restore it piece by piece, so i wiped EVERYTHING, even usb, and i think thats hat fixed it cause i restored an old back up, my first one, and worked like a charm, just need to restore data from my latest back up.
[HTC First] fire6water:
Hello I'm using jmz sense 4.1.1,which comes with this kernel. WiFi was broken when it booted. So I restore my backup and WiFi works again. Does this method work on jmz sense rom?
[HTC First] zhosi:
Hello, i solved this wifi issue just after installing the rom you have to flash the boot img from fastboot: fastboot flash boot boot.img and then wifi works for me.
[JAMin, XDA Neo, S200 General] wig:
About 1/2 of the time that I pull my jamin out of my pocket when I'm getting a call, I hit a button of some sort which shunts the inbound call to voicemail. Very very annoying.

I have my buttons all on the locked setting except for power, but when the phone rings - all bets are off and every button is live. Bad design.

Thanks in advance!
[JAMin, XDA Neo, S200 General] mdviz:
I too had the same problems ...I just get the photo framed and what happens .. I press the power botton and turn the thing off! Very annoying.

but you do eventually get used to remembering to not pick it up by the sides wher ethe buttons are.
[JAMin, XDA Neo, S200 General] prophetuser:
Buttons

I asked the same thing last week (see link). The suggestion did sort of work, but was not slick enough for practical use. Would be nice for a proper solution (such as the 'menu*' on the Nokia).

http://xdaforums.com/viewtopic.php?t=41956
[Droid RAZR M Q&A, Help & Troubleshooting] argedion:
What is a good rom to run on this phone? I have tried a few and can't seem to find anything that works with out issue. I tried the latest SlimRom which I liked but It doesn't allow me root access. So apps like titanium backup don't work :( I've tried I think its OEO or something of that nature and it was ok and I don't care for CM11.

I am using the stock rom that came with the phone I think that is ICS
[Droid RAZR M Q&A, Help & Troubleshooting] aviwdoowks:
I have never found a more functional rom than mhous33 dst stock or the avistralia deodexed mod.

All the cm, pacman, aokp...... never work FOR ME in all the capacities of stock.
[Droid RAZR M Q&A, Help & Troubleshooting] aviwdoowks:
About TiBu, I have always found issues with it.

I use recovery advanced restore to move apps.

You can move your stock data to both the dst & avistralia roms.
[Droid RAZR M Q&A, Help & Troubleshooting] argedion:
You wouldnt have a link for that rom would you?
[Droid RAZR M Q&A, Help & Troubleshooting] aviwdoowks:
They both are in the 1st page of the dev section.
[Droid RAZR M Q&A, Help & Troubleshooting] mic213:
Did you try flashing supersu in twrp to get root access? Also, the most recent builds of CM11 have been running great for me with no issues and better performance than stock and CM10.2 for me. It's worth a try...