yashsingh1/xdaforums huggingface dataset:
[AT&T Samsung Galaxy S6] orlandoxpolice:
So with my phone I like to use it until the battery gets very low (sub 5%) so I can aggregate battery stats to see how much I get on a full charge. I have heard that this is bad for the battery though and it should not be allowed to fully discharge very often in order to prolong the battery life.

I was wondering what is the lowest % I should let the battery get to before I should charge again (10%, 20%, 30% etc) to maintain the best battery life and performance.
[AT&T Samsung Galaxy S6] Clienterror:
I suggest just charging your phone every night and not worrying about it unless you plan on keeping it for over 2 years.
[AT&T Samsung Galaxy S6] _Dennis_:
Optimal battery percentage is 40%-60%. But heat has a much higher impact on longevity. Mostly the battery will protect itself from to much damage.
[AT&T Samsung Galaxy S6] orlandoxpolice:
Why would optimal be 40% to 60% and not 40% to 100%?
[AT&T Samsung Galaxy S6] Clienterror:
More than you ever probably wanted to know about lithium ion batteries http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
[AT&T Samsung Galaxy S6] _Dennis_:
I love that article......well that whole site. I'm a geek lol.
[AT&T Samsung Galaxy S6] orlandoxpolice:
"Turn off phone while charging"

Wonder how important that is.
[AT&T Samsung Galaxy S6] _Dennis_:
Depends on what is important to you. It keeps the battery cooler (less/no heat from CPU). Obviously you can't recurve phone calls or text messages when the phone is off though.

In most cases, if you don't plan on keeping your phone for 4 or 5 years, the reduction of battery longevity would not be significant. You may now have say 4 hours SoT with 14 hours standby, and in 3 or 4 years you might get 3-3.5 hour SoT with 11 hours standby. Yes it's a loss, but still 'enough' for most people.
[AT&T Samsung Galaxy S6] hp79:
Less stress to the battery. Hybrid cars do this too.

Draining close to 0% will stress the battery more, but it's hard to avoid since we have such a wimp battery.

I just charge it up every night or whenever I have a chance since I use wireless qi chargers. By the way, wireless charging creates heat because the inefficiency which is also bad for the battery.
[Galaxy S 5 Q&A, Help & Troubleshooting] galush:
There is some way to change some file in root files to enable the option to use the google play on china android model like sm-g9009d

please your help
[Galaxy S 5 Q&A, Help & Troubleshooting] upndwn4par:
Questions belong in Q&A, not General.

Thank you.
[Galaxy Tab Pro 12.2, 10.1, 8.4 Q&A, Help & Trouble] AA1XD:
I have a Galaxy Tab Pro 10.1 tablet. Everything worked fine until I updated it last week. Now when I try to view posted pictures on Facebook, all I get is a white screen. I read somewhere about emptying the cache, (did that) and also if all else fails to uninstall facebook and reinstall it, (did that twice). If I reinstall it, I will see the pictures once, maybe twice then it is back to the white screen. Everything else "seems" to be working ok for now.

Any help is greatly appreciated.

Thanks

Gene
[Nexus 5 Q&A, Help & Troubleshooting] xdadevelopersrocks:
CM12.1 hammerhead flashes and works great but I can't flash hammerheadcaf. It tells me that my device is hammerhead and not hammerheadcaf. How can I fix this?
[Nexus 5 Q&A, Help & Troubleshooting] doctor_droid:
Are u using twrpcaf version?
[Nexus 5 Q&A, Help & Troubleshooting] xdadevelopersrocks:
No I'm not, that must be the problem. But is there a twrpcaf with the MultiROM menu patch?
[Nexus 5 Q&A, Help & Troubleshooting] SketchyStunts:
How many threads are you going to start?
[Nexus 5 Q&A, Help & Troubleshooting] xdadevelopersrocks:
Besides this thread, I've answered the questions I posed in each one of my threads myself.

Does anyone know if twrpcaf exists with the MultiROM menu patch?
[Sony Xperia C] engnajjar:
hello every body

I have xperia c3 and try to unlock bootloader, but after that all photos and files in internal storage were deleted !!!

as I know that the data which is erased: apps and their data, messages and contacts ...etc BUT not entire internal storage !!

I have so important photos and files

please help me to recover them please :((((
[Sony Xperia C] Samuel Wankhede:
When you unlock bootloader, the entire internal memory is wiped...

You should have transferred your photos and files to a sd-card..

Sorry to say but now you cannot do anything...
[Galaxy S6 General] DocRambone:
Needed tools:

Resolution Changer Pro

https://play.google.com/store/apps/details?id=com.nexter.miniscaler

Build Prop Editor

https://play.google.com/store/apps/details?id=com.jrummy.apps.build.prop.editor

Root needed.

1: Change LCD density to 480 DPI with Build prop editor. Reboot

2: Change Width to 1080 and Height to 1920 with Resolution changer

Enjoy.
[Galaxy S6 General] gpvecchi:
I looked at my build.prop and I have 2 of DPI values, one is 640 and the other is 480...:eek:
[Galaxy S6 General] DocRambone:
Use the build prop editor as stated in 1st post
[Galaxy S6 General] hajyihia:
the question is, did you try it? i mean, does it help with the battery life or performance...?
[Galaxy S6 General] yellowsn0w:
Why would you do this
[Galaxy S6 General] JohanSjogren:
Better game/UI performance and better RAM consumption (apps takes less space in RAM since there is less grafic information stored when multitasking). The GPU will not have to work as hard when displaying things on screen which results in less heat and better battery (even though the battery saving effects is not huge). Most media content provided is in 1080p or less so it will be scaled anyways. The visual difference with 1080p on a 5,1" screen is very small and most people probably will not see any difference. I've run 1080p since I got this phone and I'm extremely pleased! Switching between resolutions is easy so if I use the phone for VR (only good reason for extreme res) that's still no problem.
[Galaxy S6 General] Shocky2:
I will give this a try later today, if it's not possible to see any difference it's worth changing for increased performance.

EDIT

As somebody else posted above, I have three "ro.sf.lcd_density" options, the first two are set to 640 and one to 480.

Which of the two do we change to 480? sorry if this is a stupid question.

EDIT 2

Not working, DPI doesn't seem to want to change, after restarting it's back to normal.
[Galaxy S6 General] solitarymonkey:
I too, am having trouble with the DPI value not sticking after reboot. Any ideas on what's going on here?

Edit: I succeeded by editing the values on all DPI associated parts of the build prop manually in the file modifying section of the editor (ie not using the easy edit mode that the app defaults to)
[Galaxy S6 General] Gilg@mesh:
thank you, no problem here.
[Galaxy S6 General] yellowsn0w:
So you would downgrade the best part about this phone (the amazing screen) to give negligible ram boost.
[Galaxy S6 General] Gilg@mesh:
lol, it's still the same screen.
[Galaxy S6 General] Cr4z33:
It's up to you to change resolution, but then honestly I don't get why would you spend so much money for the Edge. :confused:

Sent from my Samsung Galaxy Tab Pro 10.1
[Galaxy S6 General] PeK_m:
Is there any notable difference in performance after dropping dpi or is it just placebo?
[Galaxy S6 General] solitarymonkey:
For the size of the screen, the difference is negligible ;)

Negligible screen quality over negligible ram space. It's android, and we are free to make that choice if we choose :)

I've tried this change, and the only reason I've gone back to stock settings was due to a few oddities in 1 or 2 apps.
[Galaxy S6 General] Shocky2:
After editing the file manually it did save after a restart thankfully.

Changed resolution and I honestly can't tell the difference which isn't all that surprising, I ran a few benchmarks and they all reflect the change in the results, GFXBench's onscreen and offscreen results match so the performance increase in games is real.

Also I now have around 1GB of memory free so that's quite a big difference, will play around with it for a few days and see if there are other benefits but so far it's looking good.
[Galaxy S6 General] kristova86:
How can I fix home screen widgets, it refusing manual fix
[Galaxy S6 General] JohanSjogren:
Yeah the gaming performance really is great in 1080p. It beats preatty much every other phone! I can add that I use the app "resolution changer" from play store which has built in DPI changer (use 480 for best compability), the resolution and DPI sticks between reboots. If you're planning on sticking with 1080p it doesn't hurt to whipe cache and maybe dalvik cache so the phone doesn't have any old cached data. Might be why some have issues. I have no issues so far (one month of usage). One of the big tradeoffs of having a super high res screen is that it counteracts other performance enhancements made with the new SOC's. If you compare performance on lg g3 1440p and Sony z3 1080p you know what I mean. And 1080p on 5.1" is still sharper than the "super retina" iPhone 6+, hehe
[Galaxy S6 General] JoeFCaputo113:
What are the names of the 2 buuld.prop lines we need to change??
[Galaxy S6 General] KevinGleave:
Hey really interested in this, could you post some benchmarks? Such as Antutu, and screen on time, both with the 1080p mod? Thank you! :good:
[Galaxy S6 General] Shocky2:
Sure see below but you won't see much of a difference in Antutu as the 3d graphics tests are mostly vsync limited, there is a slight improvement, GFXBench demonstrates the difference a lot better. I doubt it's going to have much of an effect on battery life, got the usual 4 hours today.

Pay attention to the Manhattan and T-Rex onscreen results in the below comparison, my device is quite a bit faster. :D

[IMG="GFXBench"]http://s17.postimg.org/dm00c5yb3/Screenshot_2015_06_03_22_08_23.png[/IMG][IMG="Antutu"]http://s8.postimg.org/yzsinverp/Screenshot_2015_06_03_22_05_24.png[/IMG]
[Galaxy S6 General] JohanSjogren:
I get similar results. Antutu grafics test is maxed out even in 1440p so it doesn't say much. GFXbench is better suitable for grafics. I get even slightly faster onscreen than offscreen in GFX! But I agree. Battery life will essentially be the same in normal use, so many factors to take in account. But I if your gaming habits are high you should se an improvement due to GPU offload. That said I usually get around 5+ hours of SOT which is better than I usually get on other phones ,my lg g2 had around 3-4 hours if did some gaming and 2-3 hours of nonstop gaming depending on the game. I play a lot of Hearthstone right now (mixed 2d and 3d grafics) and I can easily play for 4 hours nonstop (haven't maxed out the battery of nonstop gaming yet). When it comes to general battery life (another thread topic really) Samsung still have to do some optimisation but the potential is there to become really great.

PS I can't post any links yet due to newbie forum status
[Galaxy S6 General] morfini:
Do stuttering and lag in apps like chrome or playstore reduce by lowering the resolution?
[Galaxy S6 General] samdroid711:
Just tried out this tweak. Works great. Everything is much smoother even on 1x Animation/Animation Timing and Sizing. Thanks OP!

Haven't felt any lag as of yet. Scrolling is much much smoother.

------

Build Prop Edittor doesnt seem to keep the dpi setting. Jumps back to 640 upon reboot. The resolution changer allows you to set dpi (see screenshot) which works and keeps it at 480.

Good Luck!
[Galaxy S6 General] JohanSjogren:
Yeah, I find "resolution changer" to be a more stable solution. Settings really sticks. I too have very good experience in fluidity in scrolling which is almost stutterless. Though the way android is built there will still be the occasional stutter (compared to iOS where scrolling speed is limited so that it feels smoother and GUI is higher prioritized than CPU heavy actions). It will take some real overhaul of android core coding to get it as "smooth" as iOS, but many doesn't seem to realize that iOS GUI coding has it's own major drawbacks like it laks lightning fast scrolling speed we get on android.
[Galaxy S6 General] morfini:
Well I tried this method and I can't say I noticed any improvement in scrolling. Though stock browser is smooth enough for me, chrome and playstore are unforgivably full of stuttering. You are right about ios but here the problem is not android, but Samsung's implementation of it. Nexus or htc phones are a lot smoother. Hope 5.1.1 will improve the situation. Didn't try any gaming, maybe there is more improvement there. Actually I didn't noticed any significant downgrade in screen quality either by lowering the resolution. Maybe I am not observant enough☺
[Galaxy S6 General] ak4d4:
Does this effect battery in any way?
[Galaxy S6 General] samdroid711:
Slightly more? Is barely noticeable after a day off use though.
[Galaxy S6 General] Hemant:
I tried the resolution changer but the settings didn't stick
[Galaxy S6 General] samdroid711:
Battery Stats after a very light day. Running Res Changer and BBS.
[Galaxy S6 General] JohanSjogren:
That's strange. Have you had any other issues with [root] apps? Have you tried both "Resolution Changer Pro" (has built in dpi settings) and "NOMone Resolution Changer". For me the former one works great. Do the resolution change but reset after reboot or doesn't it work at all? Try clearing cache and dalvik cache in recovery and see if it helps.
[Galaxy S6 General] NisseGurra:
You have to install busybox to get the setting to stick.
[Galaxy S6 General] Hemant:
hi tried again and this time settings sticked. So I used 1080 in width and 1920 in height and changed dpi to 480 all in resolution changer pro and it immediately applied the settings without reboot. So will restart and see how its going on. Thanks for your help.

---------- Post added at 05:48 PM ---------- Previous post was at 05:47 PM ----------

@nissegurra I had busy box installed. Thanks.

Edit: got it working. The resolution didn't change using resolution changer pro as there was 3 places where I had to change the dpi. Will notice for a day if battery is any better than my sot.

Immediate changes are the screen is obviously less brighter and the photos when zoomed 100% look blurry.
[Galaxy S6 General] JohanSjogren:
When you say zoomed at 100% do you mean fully zoomed in or without zoom? For example if you zoom to the "natural amount" (where the pixels in the picture corresponds to the resolution of the screen the picture will be more zoomed in on a 1080p screen than on a 1440p one. When I look at photos I can barely see a deference at 15cm viewing distance an then just with a very sharp picture where details like hair can be slightly crisper on a 1440p screen. There are other situations where the resolution difference is more obvious. Like in 3d gaming when you look at polygon edges. Or looking at NY times in in desktop mode portrait fully zoomed out where the small text will be less sharp (no where near bad though. Brightness shouldn't be affected though since its just emulated resolution and should not affect screen properties, that's also why there won't be a noticeable battery boost compared to native resolution in normal use (normal GPU load). But I guess people might have different experience on their devices than I've had.[IMG="NY times 1080p"]https://goo.gl/photos/bU47XvtPYDCk6sSW9[/IMG]
[Galaxy S6 General] Hemant:
Sorry when i meant zoomed i meant zoomed out to 100%. There is obviously a difference in reading text and in photos app. Overall too the screens looks less brighter. I am using Lux brightness with a profile that was posted here on the forums and i can certainly say that when using native resolution the screen is brighter at a lower percentage while on 1920x1080 screen needs to be brighter at a bit higher.

It could be a psychological thing but its always somewhere at the back of my mind that the screen resolution is lower than usual. Lol if you would have given me 1080 resolution i wouldnt have known it. So i guess it will take few days to get it noticed.

Now the biggest advantage of the 1080 screen before google play services spoiled it was the battery life. I was at 81% with 1.50 hours SOT is over 3 hours time which is almost impossible to achieve before with 1440p resolution. I was looking forward to a great battery test before google play services had to drop the battery from 81 to 65 % in over 7 hours. Never had an issue like this before and dont know why it happened. I have never ever lost so much in a night. I have followed the battery tips of disabling certain services of google play services and i believe that might be the issue.

TLDR; anyway i am back to 1080 now and the phone is charging and i am going to observe the battery in a day or two and see how it goes. If battery is great then i will end up sticking or would go back to native resolution. Once again thank you for all the help and suggestions and i am thrilled i got this working and hoping now that battery is better. Will update in a day or 2. Cheers.

---------- Post added at 10:53 AM ---------- Previous post was at 10:10 AM ----------

Edit: On my second try now on 1080p i see no difference in screen or brightness quality. So i guess my mind was playing with me
[Galaxy S6 General] benjmiester:
That's cool that there's a thread for this. I was doing this with my Z2 before I sold it and with my S6 as well. I found though, it should have little to no effect on battery as the screen is still 1440p. You're just changing the resolution it's being asked to display. This does have slight effects on CPU and ram usage hence the extra fps in games, and lower clock rates may keep battery drain lower ever so slightly, but I've gone 6 hrs 8 mins screen on time in QHD, and never could get better with or without changing res. I even tried 720p :D Took some toying with DPI to get it to fit right though.
[Galaxy S6 General] Hemant:
you are right absolutely. i have gone back to 1440p as just messing around with the phone. i have completely disabled google play services and now have lost only 10 % in over 4 hours with 20 mins SOT.
[Galaxy S6 General] osmosizzz:
How do you entirely disable play services? Isn't it needed for the play store and all of the Google Apps?
[Galaxy S6 General] teknoflipp:
Setting?

I know it has something to do with settings. At least in my phone
[Galaxy S6 General] Hemant:
Disable the play services with Titanium Backup Pro. I am rooted with Knox tripped. But doing that also deletes your google account.
[Galaxy S6 General] siralsmooth:
I did this on my Nexus 6 via terminal and after dumping QHD for FHD, battery life improved, and there was almost a 3k boost in Antutu. As for those who will complain about losing the high res or clarity, aside from photos that I took is about the only place where I could notice a slight difference.
[Galaxy S6 General] samdroid711:
2x GFX Battery bench

Minor battery increase with a huge performance improvement.
[Galaxy S6 General] cbbflfjz:
has anyone noticed after going down to 1080p the preview of app cards in recent apps become enlarged? it's kinda annoying, is there a way to fix it?
[Galaxy S6 General] Gilg@mesh:
yes that made me go back to 1440p :)

Tapatalked from my GALAXY S6
[Galaxy S6 General] JohanSjogren:
I have more or less been running in 1080p from start and I haven't even thought about it until you mentioned it! Thought it always was cropped that way. Well that's just me getting used to it I guess. Not a dealbreaker for me. Maybe it will look different in lollipop 5.1 update? Otherwise I don't see any developer putting an effort to fix it since the user base that use 1080p is probably quite small. Otherwise there are incredible few issues (if any) in running 1080p considering that the Samsung customised software wasn't designed to run in that resolution. :)

[Edit.]

One thing I noticed is that the cut and paste board in chrome is slightly blown up compared to native resolution I think. Besides that and the multitask preview cards I can't find any other difference in GUI presentation.
[Galaxy S6 General] burcinkarabacak:
i try this with my s6 edge :)

but now always in bootloop touchwiz stopped error.

how can i fix without wipe ?

thank you
[Galaxy S6 General] Thoth33:
Try replacing modded buil.prop with original and reboot
[Galaxy S6 General] burcinkarabacak:
where can i found ? can you help me some ?

thank you
[Galaxy S6 General] Thoth33:
I dont have an unmodified one, but I can post mine, which is working for me.

It has a few tweaks, Sfinder/Qsearch bar removed, dpi set 480 (i run in 1080p) and the latest ram management fix settings.

If you are interested in it I will post it.
[Galaxy S6 General] Gboss01:
After running my phone at 1080p resolution for 2 weeks now, I found that battery life is no better or worse - in fact I'd say the difference if any is negligible.

Benchmarks all score higher at 1080p (Antutu score jumped from 69K to just under 73K). Such a huge jump makes me wonder what the M9 would score if it ran Antutu at 1440p, would defintetly see less than the 52K it's getting now.

A big warning to anyone trying to go back to 1440p, make sure you uncheck the Enable box before making any changes to the resolution, then change the resolution and DPI and only then check the Enable box. I left the box checked and changed the width to 1440 and after clicking okay I got a ton of FC's and my phone became unusable. I didn't have a backup of my build.prop and reloading my ROM didn't help either. Eventually had to use Odin to revert back to stock.
[Galaxy S6 General] shushwenira:
If the Ram management fix works, post it!
[Galaxy S6 General] Thoth33:
I use the following settings. Be sure to comment out and conflicting lines. I found 3. Some people find 4. The last line I added my self to see if it made a difference. Unsure as of yet.

#DHA
ro.config.dha_cached_max=15
ro.config.dha_cached_min=4
ro.config.dha_empty_max=36
ro.config.dha_empty_min=9
ro.config.dha_empty_init=36
ro.config.dha_lmk_scale=0.990
ro.config.dha_th_rate=1.83
ro.config.sdha_apps_bg_max=70
ro.config.sdha_apps_bg_min=8
ro.config.dha_ils_enable=true
ro.config.dha_ils_dyna_lmk=true
ro.config.dha_ils_rate=1.5
ro.config.64bit_lmk_enable=true
[Galaxy S6 General] samdroid711:
I mucked up the build.prop as well in the process of experimenting with the setting for ram management.

Ended up with a boot loop.

If that happens to you just flash your stock rom with odin. It'll fix the buildprobuildprop but youll lose root and keep all your data!