yashsingh1/xdaforums huggingface dataset:
[T-Mobile Samsung Galaxy S 4] brando56894:
I've been using Android for years now and I'm a huge Linux geek, but does the TouchWiz kernel really make that much of a performance improvement over an AOSP kernel, or is it other things also? When I first got my S4 I was amazed at how fast TW was out of the box, I stuck with it a few days and then went on to AOSP roms. I stayed on AOSP roms for about a week or two and things started to feel slower.

(before anyone flames me, I know benchmark scores don't mean a lot but they are a decent performance measurement) Just for the hell of it I ran Quadrant Advanced OC'd to 1.9 GHz and got a max of 7,000; I was having call quality issues to I decided to switch back to a TW rom, I was using either Wicked or Infamous S4 and while I had it loaded I ran Quadrant and got a whopping 12,700 which blew my mind! After the GE rom came out I was running that for about a week and was getting the same score. I didn't test it on the 4.3 leak though, which is apparently AOSP and not a stripped down TW rom.

So what is it about TW based roms that accounts for the huge difference in performance? Not only are my benchmark scores about 5,000-6,000 points higher, it also feels snappier while opening up programs and changing orientations. Are there a bunch of drivers/kernel modules that are missing or are hacked together in the AOSP roms/kernels that aren't nearly as good as the ones in the "official" roms?
[T-Mobile Samsung Galaxy S 4] AxAtAx:
Actually that is not true, I have seen some fast aosp roms out there, it is kernel related, experiment with a different kernel, you will see the results change.
[T-Mobile Samsung Galaxy S 4] Toleraen:
I wouldn't say they're missing or hacked together, but Samsung has all the sources for their devices. Not just the kernel source, but also all the inner workings of the SoCs they're programming for. They have all the information needed to maximize the performance of the devices the make. AOSP roms don't have this luxury.

Think of it like graphics drivers in the Linux world. You can use nvidia's driver blobs (TW roms), or you can use F/OSS developed Nouveau drivers (AOSP).
[T-Mobile Samsung Galaxy S 4] brando56894:
I never said that it happened on all of the devices that I've had. In most cases the AOSP roms were almost always faster.

Yea I figured it was something like that. Thanks. Boo for closed source stuff :(

Just for fun I'm going to keep a running tally of quadrant benchmarks in here.

Score: 7762

Rom: RevoltJB v4.4 Stable

Kernel: Chronic Kernel 3.4.50 7/2

CPU: max 1.89 GHz performance governor

GPU: 504 performance governor

Score: 13191

Rom: Infamous S4 Google Edition v3

Kernel: Ktoonsez 3.4.0-KT-SGS4

CPU: max 1.998 GHz performance governor

GPU: 504 MHz performance governor
[T-Mobile Samsung Galaxy S 4] SeanHacker:
Quadrant scores mean absolutely nothing in terms of how fast a ROM/kernel is. You're basically using a random number generator to base your idea of speed on. TW ROMs are slow as hell when compared to AOSP. ;)
[T-Mobile Samsung Galaxy S 4] brando56894:
Bench marks aren't completely useless or else companies that review tech products wouldn't use them at all (I'm not speaking necessarily about Android). They do vary by a few hundred points but they do give you a ballpark range. Have you tried out the Google Edition rom yet? It's easy faster than any AOSP rom I've ever used.
[T-Mobile Samsung Galaxy S 4] fuego77:
I've been using the GE ROM since it leaked and my phone runs circles around my brothers TW galaxy s4. *shrugs
[T-Mobile Samsung Galaxy S 4] brando56894:
I don't have another one to test against, but they feel equally fast to me.
[T-Mobile Samsung Galaxy S 4] Monkz:
AOSP and AOKP ROMS are by far much smoother. I believe its to do with the lower size of the OS, theres just much fewer processes, and not as much detailing in the menus which just creates smoother overall transitions and a good experience. My only crutch against them are that they heat my Galaxy S4 so much, and i don't know why it would be so, but on TW my device can idle in the 30's, heats to 40's/50's under medium-heavy load and goes up to about 65 when gaming for long periods of time.

On AOKP and AOSP in the same situations i wont ever idle below 50 degrees, moderate usage brings it to mid-high 60's and heavy usage it constantly throttles at 70, and when i disabled my throttle it heated up to 80 so quick that i got scared and quickly turned it back on. All these temps are in C.

I found on the Galaxy S3 that AOKP ran much cooler than it did on the S4, and its just the temps on those ROMS are what keeps me on Touchwiz as my daily driver. Its bad on the battery life and bad on the feel when your phone is warm no matter what you do, yet i love the whole neatness and smoothness of AOKP.
[T-Mobile Samsung Galaxy S 4] brando56894:
That's not what I've experienced on my S4. The Google Edition (which is TW based) runs circles around Carbon and RevoltJB, I haven't tried pure CM or AOKP yet though.
[T-Mobile Samsung Galaxy S 4] schumnana:
I*experimented the same problem concerning performance and high temperature on S4 on AOSP*roms.

I opened a issue on CM (CYAN-1768) and SlimRom (SlimRoms/device_samsung_jfltetmo/issues/2) issue tracker.
[T-Mobile Samsung Galaxy S 4] Soldier 2.0:
Because people do not know that ODEXING a ROM optimizes it. Most members see "deodexed" on the title of the zip and believe it will be faster than odex version. *sigh*
[T-Mobile Samsung Galaxy S 4] richardlibeau:
But none of them are faster than the new LiquidSmooth rom it's blazing fast. I have used it on my S2 and S3 but this is the fastest aosp rom out easily.
[T-Mobile Samsung Galaxy S 4] whytechapel_x:
I'm on tasks AOKP and its really fast. Every aosp ROM in general I have tried are faster.
[T-Mobile Samsung Galaxy S 4] flipq88:
I have never seen an aosp rom be "faster" than stock, and that's on all my phones. I used to like cm/aokp but they always have bugs, whether it's small or big, they always have bugs. On the S3 and on the S4 I have flashed aosp roms but always end up coming back to tw. Tw>aosp

Sent from Flip's Galaxy S4
[T-Mobile Samsung Galaxy S 4] DigitalUnderground:
These are 2 very very fast roms... best aosp roms ive used. But, bottom line, samsung has stepped their game up and made tw work like a custom rom itself. Aside from the 600mb+ of stock bloat, this phone is perfect out if the box
[T-Mobile Samsung Galaxy S 4] richardlibeau:
Say what??? Perfect out of the box no way.. and the tw theme it comes with is terrible looking as well.
[T-Mobile Samsung Galaxy S 4] DigitalUnderground:
Lol ok :rolleyes:
[T-Mobile Samsung Galaxy S 4] richardlibeau:
I mean l love the phone how I have it now but I guess to each his own. TW just doesn't work for me. The best TW rom I have seen that is themed and looks gteat is DeathStar but that's just my opinion. Personally I have never kept a stock rom on any phone I have ever had because of the limitations with it and the usual stock bull that comes with it.
[T-Mobile Samsung Galaxy S 4] DigitalUnderground:
I always use custom roms as well... usually the ones i cook myself (see sig) but I'm just saying that there aren't as many mods or whatnot to add to this phone because of how nice it is on stock. Like u said... to each his own.
[Galaxy S 4 Q&A, Help & Troubleshooting] NafisAhmed:
Hi guys. My almost brand new Samsung Galaxy S4 has just stopped working.

I was doing homework and one of my friends text me I look at the text and lock my phone screen and that was the last time I saw my screen working properly.

I later tried to turn on the screen but I had no luck, the screen wouldn't show anything, it was just blank but surprisingly it recognised my touch and made the sound. I could unlock my phone and even turn on apps by guessing where I kept them. I could turn on music and it would work but the screen would remain completely blank.

My phone was rooted and it had the stock rom but it had a custom kernel which enabled over clocking to 2.3 ghz (Ktweakers kernel I think) but the limit was set to 1.89 so I don't that that was the cause.

When I restart my phone the screen where it says "Samsung Galaxy S4 GT-I9505", I think its called the splash screen? I'm not sure, anyways instead of it being black with white writing, its really weird and is bright white with very light white writing. This is the only time the screen actually works, and the other time it works is when you try to put it into download mode but both times the screen is bright white and everything is very light and faded. After the "GT-I9505" screen goes away the screen goes black the blue LED still flashes and you can hear the samsung boot sound and the phone boots up properly without the screen.

What could be the cause of all this? I have literally kept this phone on top of my head. I have done nothing to harm it in any way what so ever. I have never dropped it. From day one I had a thick case incase I bumped it and damaged it. Anyone else having this problem? Or am I the only one? Do you guys think I'll be able to fix this or will I have to take it back to the store?

Thank you!

- Nafis A

*I will try to add a picture in a bit when I can get hold of a camera
[Galaxy S 4 Q&A, Help & Troubleshooting] HS™:
U can try to go to stock recovery and try to wipe cache and see if it boots up

If u have custom recovery wipe cache / dalvik/ fix permissn and reboot

else u should download a stock firmware and flash it using odin it will work incase even after u flash a firmware and again stuck at Logo etc go to stock recovery and wipe cache and reboot
[Galaxy S 4 Q&A, Help & Troubleshooting] NafisAhmed:
Thank you for replying! I had cwm recovery installed but I reverted back to stock mod through odin. Now I am trying to wipe cache through stock recovery but the problem is that I can't see anything that I am doing. I am relying on pictures of the stock recovery. I know that my phone goes into recovery mode but it does not show anything on the screen. I am assuming I get stuck on the part where there are lots of no's and one yes.

Would It be possible if you could post a picture of that (The screen with all the no's and the one yes) because maybe then I can wipe the cache.

And I am already downloading the stock firmware, but it is taking forever because if the extremely slow internet. But the thing is that I don't see any logos, it boots fine but it doesn't show anything on the display. But I also know that the display is working because it still shows the "GT-I9505" screen. I'll post my progress here.
[Galaxy S 4 Q&A, Help & Troubleshooting] HS™:
I dont have a s4 with me now using htc one for while flash the firmware Stock one using Odin and wait for better result
[Galaxy S 4 Q&A, Help & Troubleshooting] NafisAhmed:
Okay so I downloaded the stock rom and flashed it with odin and it basically did nothing. Rather before flashing the stock rom, the splash screen would show (the screen that says "Samsung Galaxy S4 GT-i9505") but now it does not show anything. It turns on normally like it should, it makes the boot sound but does not show anything on the screen. If you have the lights turned off, you can see a flicker when it turns on and thats the only time the screen actually lights up. What do you think I should do? I still think it might be a software issue. Also I don't think I have warranty because I have flashed my phone a few times. Its still very upsetting that this has happened because honestly I haven't done anything to this phone.

- Nafis A
[Galaxy S 4 Q&A, Help & Troubleshooting] karimdag:
You steel have the garantee ? .. if you know what i mean ;)
[Galaxy S 4 Q&A, Help & Troubleshooting] NafisAhmed:
Haha no I don't think so :P Well I'm still taking it back to Singapore but I will probably have to pay for the repair.
[Galaxy S 4 Q&A, Help & Troubleshooting] MichelN:
Does your screen not have cracked (from the inside ) ?
[Galaxy S 4 Q&A, Help & Troubleshooting] NafisAhmed:
I don't think it does. Because before flashing stock rom, the splash screen would show and it had no cracks. So no actual damage, I still think it is a software issue but I don't know how to fix it :/ I still can't decide if I should take it to Samsung (which will take like a few months) or I can take it to a local repair shop and they can look at it which shouldn't take more than a week.
[Galaxy S 4 Q&A, Help & Troubleshooting] MichelN:
For repairs it takes 2 weeks before you get your device back (at least in my country)
[Galaxy S 4 Q&A, Help & Troubleshooting] NafisAhmed:
Repairing it doesn't take very long, taking it to the repair centre will take time. I bought my phone from Singapore and I have to take it there if I want to get it repaired. I took it to the Samsung repair centre in Bangladesh, they said they can't repair my model because they don't support it here :/
[Galaxy S 4 Q&A, Help & Troubleshooting] MichelN:
The samsung centre here will send it to a repair centre. Here i will lose the phone for max. 2 weeks.
[Galaxy S 4 Q&A, Help & Troubleshooting] mog2:
same problem

The same exact thing happened to me yesterday. Opened a text from a friend, tried turning on the screen and black screen. Thinking of sending it to samsung but do you have a solution yet? Was the problem diagnosed?
[Galaxy S 4 Q&A, Help & Troubleshooting] harash:
My Samsung galaxy s4 i9505 screen is dead--

I woke up this morning and my phone is still charging... But I cannot see my any data in the screen.. But my phone is still working.. I can receive phone call with my headset.. I cannot see anything in my screen.. It gone black.. Can anybody help me to fix this.. Or is this a firmware issue.. My phone has been rooted and installed official android 4.3 jellybean. Please help!!!
[Galaxy S 4 Q&A, Help & Troubleshooting] aeduardors:
Just today I spend the same, except that the screen starts flashing, and at times the picture and the picture looked twice was very unstable, it restarts, and for the image of the i9505 without problem.

He ruled out a physical problem as it starts each. Device failure begins after displaying the Device Model

.

The touch and other features of the device, work perfectly. Try booting in recovery mode and I could not look very bad image.

In trying to backup my data with titanium to try to do a factory reset, began to regain normalcy. And right there my device works perfectly.

Bring 7 hours working normally my device. But I have fear of failing again. And now looking for information about possible solution. No warranty now.

What do you recommend? It's failure is becoming common. My device is doomed to die without remedy? Thank you very much for your answers in advance. Use translator apologies. Speak Spanish
[Galaxy S 4 Q&A, Help & Troubleshooting] radibg:
hello guys, i got mine i9505 lte version 4 months ago. yesterday i pull it out of my pocket i tried to wake the device up but nothing .. just black screen just like the guys before me here. so today i opened the phone and pulled out and push it back the display connector... AND VOALA WORKS AGAIN! but after 5-10 minutes and everything is again black?! wtf i said!?! its not normal! my screen is working flawlessly colors touch response... everything! do i have to reconnect the display connector every time? i think its not normal. what must cause this bug/glitch/issue?!?!

i am rooted with cwm and cyanogenmod 11... i dont think its caused by the rom? what do you think guys? give me suggestion before i try to demolish the phuking fone:)))
[Galaxy S 4 Q&A, Help & Troubleshooting] Watussi8:
Hello Guys, this issues is very common when you rooted the device and install Wanam Xposed.

You can try flash a stock Rom and stock Kernel with odin, try to swipe cache and dalvin using ADB.

Good Luck!
[One (M7) Q&A, Help & Troubleshooting] snab321:
Just got my HTC one last night and it is sprint version

How can I update to 4.2.2 because it always say I have the latest update

do I have to install global Rom? How to do it

This my firstHTC after galaxy and nexus thanks
[One (M7) Q&A, Help & Troubleshooting] SmiLey497:
You can't.
[One (M7) Q&A, Help & Troubleshooting] iElvis:
The Sprint base is different from all the others. There's nothing you can do until Sprint releases its version or there is a leak.
[T-Mobile Samsung Galaxy S II SGH-T989] r_david562:
I'm currently running CM10.1. Are there any mods/tweaks I could make on my camera to improve quality of pictures, and videos?
[T-Mobile Samsung Galaxy S II SGH-T989] Rushing:
Hey try some build.prop edits for jpeg and video. Sometimes the knowing is in the doing. Its fairly safe roads to add some tweaks to the end of build.prop. make. A backup and enjoy the journey of editing your phone's read only memory.

Become part of development and share your profits

I'll be back in a flash
[T-Mobile Samsung Galaxy S II SGH-T989] r_david562:
I wouldn't know where to start because I've never heard of that. How would I be able to do this? Any step by step guides out there?
[T-Mobile Samsung Galaxy S II SGH-T989] Rushing:
Start with a root file manager and add a few lines regarding pics and video tweaks save and reboot.

I'll be back in a flash
[AT&T, Rogers HTC One X, Telstra One XL] mattpannella:
running cm10.1, s-off, rooted, supercid etc

ran lagfix, it just hung, screen went to sleep and that was that. no response from the phone. if i plug in usb to windows it makes the little "doo doo" windows sound when you plug in a usb device and then immediately makes the "you unplugged something" sound and i have that QHSUSB_DLOAD thing in my device manager

am i completely screwed?
[AT&T, Rogers HTC One X, Telstra One XL] RollTribe:
Yeah you're bricked. That's just a coincidence, though. Lagfix is perfectly safe.
[AT&T, Rogers HTC One X, Telstra One XL] mattpannella:
ugh

has anyone ever had just a random brick like this? i dont get it

it's not like i was flashing anything, the last time i touched my phone was a week ago or so to install a cm nightly
[AT&T, Rogers HTC One X, Telstra One XL] RollTribe:
Yup same thing happened to me. I was just looking at my pictures and it died.
[AT&T, Rogers HTC One X, Telstra One XL] mattpannella:
man...this sucks

did you get yours fixed, warranty'd?
[AT&T, Rogers HTC One X, Telstra One XL] RollTribe:
Yeah, this phone has issues.
[AT&T, Rogers HTC One X, Telstra One XL] mattpannella:
you had it fixed? or just bought a new one

wondering if i should waste my time looking for a place that can fix it(or if it even can be)
[AT&T, Rogers HTC One X, Telstra One XL] RollTribe:
You can get it JTAG'd from MobileTechVideos.com I think it's like $60.
[AT&T, Rogers HTC One X, Telstra One XL] redpoint73:
If the phone is less than a year old, get a warranty replacement. I agree, this is likely just a random hardware failure.

From your location, I assume you got it from AT&T, and they don't care if it was rooted, bootloader unlocked, etc. Not that they would be able to tell anyway, it the phone's current condition.
[AT&T, Rogers HTC One X, Telstra One XL] mattpannella:
hmm, got it from at&t ABOUT a year ago. dammit

i gotta go check the date now
[AT&T, Rogers HTC One X, Telstra One XL] Heisenberg:
This is the second brick from Lagfix I've seen reported in just a few days. Both users were running CM10.1 if I remember correctly.

Sent from my Evita
[AT&T, Rogers HTC One X, Telstra One XL] exad:
Yeah, scary. I posted in both cm threads to avoid lagfix with cm10.1 for now, just in case.
[AT&T, Rogers HTC One X, Telstra One XL] RollTribe:
I'm assuming it's the 3.4 kernel so maybe be wary on any 3.4 ROMs
[AT&T, Rogers HTC One X, Telstra One XL] mattpannella:
really? damn

update: at&t won't honor my warranty (expired 3 weeks ago.. sigh)

but they're going to let me have an early upgrade. trying to decide if I want to get a one. I really don't have the money to buy a new phone right now though. gah

edit: also, yeah 3.4 kernel. I think I was running the 10.1 build from 4 days ago.
[AT&T, Rogers HTC One X, Telstra One XL] mattpannella:
welp, got a one for 199. it's been real, guys

also, htc didn't give a **** my phone died. thanks, for nothing
[AT&T, Rogers HTC One X, Telstra One XL] Rossiterfox:
Yeah I'm one of the others that got it most likely from lagfix. CM10.1 w/ 3.4 and whatnot. There's likely no fix possible on our end.

I had a spare on hand, luckily.
[AT&T, Rogers HTC One X, Telstra One XL] mattpannella:
im using my nexus one while i wait for the new phone to come...man, how did i use this lol

android 2.2 is painful after using 4.2
[AT&T, Rogers HTC One X, Telstra One XL] redpoint73:
Unfortunately, when they say they warranty the phone for a year, they mean it. Some companies will make an exception if you are just barely outside the warranty period (such as in your case). But its not something I expect from most companies, just them being exceptionally "nice".
[AT&T, Rogers HTC One X, Telstra One XL] magambi:
Bricked my CM 10.1 EvoLTE this morning.

+1 to brick problem with CM 10.1.

I know it's probably not LagFix per se, but my phone bricked within 3 seconds of running LagFix. I had run it earlier without problems. The fstrim of cache seemed to take longer than expected. It finally finished, then screen went blank. My Evo 4g LTE is in QHSUSB_DLOAD mode, so I'm going to try to unbrick it.
[AT&T, Rogers HTC One X, Telstra One XL] twistedddx:
This forum is for Evita, not evo 4g. Report tour issue in the correct forum, that device may have separate issues.
[AT&T, Rogers HTC One X, Telstra One XL] sgtrhd:
Hi

Lagfix bricked my Tegra one x... Bootloader was accesible, so i tried to flash the original recovery, set a fectory reset... and... it starts normaly...

my tegra-try

... your turn...
[AT&T, Rogers HTC One X, Telstra One XL] sgtrhd:
I Know ;)

Gesendet von meinem HTC One mit Tapatalk 4
[AT&T, Rogers HTC One X, Telstra One XL] father87:
just bricked mine last night from running app. was using stable build of cm10.1 , s-off, rooted, CID 1, everything was perfect. this absolutely sucks. Nexus 5 I'm waiting..
[HTC Sensation] stormster:
hello

I would like to ask because I am noob... From where can i get the stk.apk ? I have one but its not working... It says not installed. I have root but no custom rom, is that the problem ?

thank you for any help :)
[Galaxy S 4 Q&A, Help & Troubleshooting] gastipies:
I got a problem, i make (stupid) nand erase all with odin 307.

So i got the pit file and the stock rom, I flash both but it didn´t work.

I can flash CWN recovery but the stock recovery dont work, even with flashed stock rom.

I do the erase nand because i got problems after flash the omega rom, with the recovery and wi-fi.

When i enter in recovery CWN, i realise that I cant mount sdcard.

what can i do to solve this?

Please help.

model gt-i9505
[Galaxy S 4 Q&A, Help & Troubleshooting] Tunestwo:
Hello Xda ,

today i flashed OMega v1. with android 4.3.

all went right until i tried to unlock my sim, now its stuck with unlocking simcard...

How can i fix?

Greets,

Tunestwo
[Galaxy S 4 Q&A, Help & Troubleshooting] jimbo.levy:
a) flash back to stock, remove the sim pin, flash the Omega ROM and it'll work

OR

b) take the sim out, put it into another phone, remove the sim pin, try it in your phone.

There are specific instructions everywhere that say to disable the sim pin before flashing a ROM.

I don't know why it doesn't work, it just doesn't.

Hope that helps :)
[Galaxy S 4 Q&A, Help & Troubleshooting] Tunestwo:
Ty worked!
[Galaxy S 4 Q&A, Help & Troubleshooting] jimbo.levy:
No probs! Have fun mate :)
[Transformer TF300T Q&A, Help & Troubleshooting] be4con:
Does anyone know how to restore the old style JB status and notification bar? i.e. everything in the bottom right corner of the screen

The new style (clock/battery top right, notifications top left) is awkward to use because the trigger area for the bars is so narrow and the Poetic case I have my TF300T in obstructs access, but I can't see a way to go back.

Alternatively are there any ROMs that allow you to adjust the size of the trigger area for the bars? I'm currently running BAKED bb-9 on 4.2

Thanks

Edit: found an option to do this in BAKED after all...