yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy S7 Guides, News, & Discussion] nvrmndryo:
Oh, but I used to do this with my note 5 & note 2, they never got this hot, I guess S7 gets hotter than any of those phones. But didn't samsung showed in there launch that s7 has heat sink which previous phones didn't have, so that should make s7 cooler, right?
[Samsung Galaxy S7 Guides, News, & Discussion] fracarol:
There are phones that don't get too hot easily and unfortunately S7 is not one of them, I try to not put it in even in my pockets (but I noticed that it doesn't get that hot if I toggle offline mode on)

[MENTION=5504716]nvrmndryo[/MENTION] sry I didn't see all the messages at once. Anyway yes they made that heat pipe that keeps the internals cooler but if it can't dissipate heat to the exterior it's kinda useless. They put it because S7 gets hotter so if it can't dissipate heat it will get hotter than note5 etc, at least it should be like this
[Samsung Galaxy S7 Guides, News, & Discussion] *Detection*:
Dunno what you want to hear, using any device that needs air to cool it, on an insulated surface will cause it to heat up

Matters not if different devices got hotter or cooler, as it stands the S7 gets hot on a bed...

The windows in my first house didn't break when I kicked a football against them, but on my second house it broke the windows, does this mean the windows were faulty? Or I should know not to kick a ball against the window in the first place?

Use common sense and you'll have less problems
[Samsung Galaxy S7 Guides, News, & Discussion] nvrmndryo:
Hmmmm.

Edit : well I got what you are trying to say. What I was telling that not even on insulated surface but anywhere, in my hands also it gets heated up much. And samsung used new heat sink pipes in s7 so it will remain cool. I just wanted confirm if my device is faulty or normal, because in same condition my previous devices didn't heat up that much, & I also have xiaomi mi4, that also doesn't get half hot as my s7.

Anyways, simple answer is s7 gets hot.

---------- Post added at 11:02 AM ---------- Previous post was at 10:54 AM ----------

Yes, but if s7 gets hot easily that means s7 will have less life compared to other phones.
[Samsung Galaxy S7 Guides, News, & Discussion] fracarol:
Probably you are right, I thought the same thing so this summer (when it was hot 35°C) I bought a little PC fan (with usb attach) and used it to cool down my phone when it got hot, for example while charging or (guess what) watching YouTube videos. PERHAPS (but i don't think it's much likely to happen) Oreo update will help a bit
[Samsung Galaxy S7 Guides, News, & Discussion] *Detection*:
I have a case on mine so don't feel the heat, but the only time I find the screen heating up, which would mean so was the rest of it, is fast charging and GearVR use

It's gonna depend on what you have running on the phone, apps that run in the background 24/7 will generate more heat

And the body of the phone = heatsink, so if it's getting hot it's doing it's job

---------- Post added at 10:19 ---------- Previous post was at 10:16 ----------

Back in MM days, during the summer I put my phone on a tripod outside in the morning sun creating a timelapse of some flowers that opened when the sun hit them, I left it out in the sun doing this for over an hour

When I came to get it, it was so hot I had to use a towel to pick it up or it would have burned my hand

Result? Nothing, it cooled down and had 0 problems, battery was fine, no overheat warnings, nothing
[Samsung Galaxy S7 Guides, News, & Discussion] fracarol:
I noticed that in general smartphones if left under direct sunlight get very very hot (for example if you go at the beach), this happened for example to my friend's iphone so I don't think it's S7's fault but I cannot explain why they do get that hot

"Back in MM days" sounds so glorious hahahah
[Samsung Galaxy S7 Guides, News, & Discussion] nvrmndryo:
Yes this happened with my note 5 in summer, I was taking pictures and I got overheating warning.
[Samsung Galaxy S7 Guides, News, & Discussion] fracarol:
Am I the only one that looked on Google for a "fan cover" for his phone? :D anyway yes sunlight is a good and free energy to fry your eggs with your phone
[Samsung Galaxy S7 Guides, News, & Discussion] *Detection*:
lol, MM days were the best, phone was new, camera seemed more awesomer (is that a word?) and all the rest of the great things that come with a new phone

Still really like it, but the novelty has worn off, I think the summer made it better too because all pictures look better in the sunlight
[Samsung Galaxy S7 Guides, News, & Discussion] fracarol:
Very romantic hahah

Yep for sure nougat did not bring what it could because Samsung is not good at optimization and with time things seem to naturally go worse (which is nonsense because phones are artificial and not natural)
[Samsung Galaxy S7 Guides, News, & Discussion] tomykc:
Hey guys, here are my battery stats of my s7

I think my battery is bad? What do you think?

This is with battery saving on, if i turn it off i get almost an hour less..
[Samsung Galaxy S7 Guides, News, & Discussion] nvrmndryo:
This is what most of us get, so not bad.
[Samsung Galaxy S7 Guides, News, & Discussion] tomykc:
How is this not bad?

Before the s7 i had the lg g3, a 3 year old phone and it was waaaay better on battery life
[Samsung Galaxy S7 Guides, News, & Discussion] *Detection*:
Flash back to Marshmallow or beginning of the year Nougat and test, the Nougat update since around May this year has significantly reduced battery life
[Samsung Galaxy S7 Guides, News, & Discussion] Levan_i:
I tried this twice, even rooted my 930U and debloated but battery life was even worse (
[Samsung Galaxy S7 Guides, News, & Discussion] nvrmndryo:
Even I am facing poor battery issue, using full time power saving mode, greenify, still the same.
[Samsung Galaxy S7 Guides, News, & Discussion] Soufiansky:
Pretty average to good, i get 4-5h SOT in a full day of usage, sometimes less, on August firmware of course. I wont update because it's useless and recent firmwares killed battery life and reduced camera quality.
[Samsung Galaxy S7 Guides, News, & Discussion] tomykc:
Would you recommend that i downgrade from the latest nougat update too the august one?
[Samsung Galaxy S7 Guides, News, & Discussion] brunnotr4:
Hi friends, I researched a lot, and I made some updates not my S7 Flat, but as last 3 ROMS tested, Bat, Superman and Ryzen all are close to battery life, even after the last update with a battery stock is bad, the loading with the original charger is awful. I would if anyone could pass a solution, or indicate a good ROM for battery life, not used for games, only wifi and 4g continuous.
[Samsung Galaxy S7 Guides, News, & Discussion] nvrmndryo:
After using greenify, power saving mode and turning off data/wifi over the night I got this backup.
[Samsung Galaxy S7 Guides, News, & Discussion] nemisi:
I'm on the April 2017 firmware for nougat and the battery life is rather decent. I'm still and will report back. The April firmware battery life does seem better than the newer firmware
[Samsung Galaxy S7 Guides, News, & Discussion] fracarol:
I think forcedoze is a bit simpler and efficient than greenify if you want to try it maybe it can help

I experienced that the only way not to lose battery during night is airplane mode (not just turning off data or WiFi) if you're not expecting calls (and for keeping yourself safe from phone's radiation). I say this because I got 5 hrs sot without many attentions and with one complete night so maybe you can try
[Samsung Galaxy S7 Guides, News, & Discussion] nvrmndryo:
Please post your complete battery stats and how many apps you use, game, etc.

---------- Post added at 08:20 PM ---------- Previous post was at 08:19 PM ----------

Tonight I will try using force close as you suggest.
[Samsung Galaxy S7 Guides, News, & Discussion] nemisi:
Here are some pictures in the meantime
[Samsung Galaxy S7 Guides, News, & Discussion] nvrmndryo:
1day 1hr & still half of battery left, great.

Can you tell how many apps have you installed, and how was your usage? Like browser, watched movies or games? WiFi,4g on? Before sleeping have you turned off data, wifi? Or airplane mode was on?
[Samsung Galaxy S7 Guides, News, & Discussion] nvrmndryo:
Tried forcedoze, it didn't work out for me as expected, greenify works better for me. Here are the stats
[Samsung Galaxy S7 Guides, News, & Discussion] nemisi:
Final screenshots on April 2017 firmware
[Samsung Galaxy S7 Guides, News, & Discussion] nvrmndryo:
That's really great, but you didn't answer my previous question? How do you manage to get this backup? I can see that you are using power savings mode, but as I asked before how many apps you have installed? How was your usage in this cycle? Games, YouTube?and are you using greenify?
[Samsung Galaxy S7 Guides, News, & Discussion] nemisi:
Power savings mode was used from 15% and down

I have around 70 apps installed

My usage cycle was alot of browsing and whatapp. Multiple calls and minor youtube.

No power saving apps installed.

WiFi on. Data on. Location set to device only. Bluetooth on. Enhanced video mode on. Exchange email active. Office all active with work account.

Deep around 85%
[Samsung Galaxy S7 Guides, News, & Discussion] fracarol:
Good mate at least you tried. I got something more in battery life but I don't use games so probably yours is in the average
[Samsung Galaxy S7 Guides, News, & Discussion] nvrmndryo:
Yes I play Coc for atleast am hour a day, so it makes a difference. Anyways, thanks.
[Samsung Galaxy S7 Guides, News, & Discussion] Soufiansky:
Yes you can try, or even older firmware.
[Samsung Galaxy S7 Guides, News, & Discussion] tomykc:
So guys, i sold my s7 because it had terrible battery life, bearly hitting 3h of sot.

So i decided to sell it and buy another one.

So, same phone, this time not black but gold.. What do you say about this sot? This is with medium battery saver. Medium to heavy usage, lots of facebook and hill climb 2..
[Samsung Galaxy S7 Guides, News, & Discussion] nvrmndryo:
This is Gr8 backup, but everything same as previous phone, like all apps? Usage? & what firmware are you on?
[Samsung Galaxy S7 Guides, News, & Discussion] tomykc:
Yes, everything is the same..

Im on the latest nougat update.

Usage was medium-high. Facebook, gaming, youtube, web browsing. Nfc off, aod off, bluetooth off, gps off, wifi only because i was all day at home. Brightness was from 30-60% with auto off. Medium battery saver with 1080p screen resolution.

I must add, i disabled the health agent, microsoft apps, and some other bloatware apps.
[Samsung Galaxy S7 Guides, News, & Discussion] *Detection*:
No everything is not the same, this is a brand new phone, and 100% factory fresh firmware install, 100% fresh apps install, that combined with a brand new battery and brand new never used hardware

Think about when you have had your PC running for a year or two, then you format and clean install Windows, even after you've reinstalled all your usual programs and games, the OS runs 100x better

Then after a while it bogs down again

The only real test would have been replacing the battery in the old phone
[Samsung Galaxy S7 Guides, News, & Discussion] tomykc:
Cant agree with you.

This second s7 i have now is 5 months older then the first one.

The first was bought in 1/2017, the second 8/2016 and it beats it in battery life.

I made on both phones a factory reset to have a fresh start. Those are used phones, not new ones.
[Samsung Galaxy S7 Guides, News, & Discussion] *Detection*:
So your first one was either used way more, or had a faulty battery

Batteries should not lose a significant or even noticeable amount of capacity in 12 months unless they are faulty from the start, or you hammered/damaged them

My old S5 from about 3+ years ago still holds the same charge today as it did brand new, average charging of once every 2 days

Most lithium-ion batteries have a rated lifetime of somewhere between 500 and 1,500 charge cycles. One cycle is just one bout of discharging, but how much energy you discharge in one go—a measure referred to as depth of discharge (DoD)—matters bigtime

3 years @ one charge every 2 days = 547 charge cycles, it is only just reaching it's lowest limit now, and likely will last way longer

So for you to have killed a healthy battery in 12 months, you would have had to full discharge and fully charge your phone 1.5 times a day, and also have the fact that the battery only lasted the lowest of it's suggested lifetime of around 500 cycles, if it was 100% healthy for 1500 cycles, you would have had to almost triple that at 4-5 charge cycles per day
[Samsung Galaxy S7 Guides, News, & Discussion] tomykc:
Like i said, i bought the phone used, 1 year old. I dont know what the previous owner did with the phone but the battery life was just rubbish. Yesterday i didnt play so much games, and got 6h of sot on 2% left battery. So this sot is amazing. My friend gets that sot on the new s8+
[Samsung Galaxy S7 Guides, News, & Discussion] *Detection*:
You either got a lemon battery or the battery was completely hammered during it's lifetime with the first one

This 2nd one obviously was not faulty or hammered

I used to own an iPad mini 2 and it got absolutely amazing battery life, I sold it and a year later I bought another one second hand, battery life on that is also amazing, exactly the same as the new one was

But I know 100% that the update around May 2017 made a huge impact on battery life, I was getting 5-6 hours SoT, updated and suddenly 4 hours SoT was difficult to reach immediately after the update
[Samsung Galaxy S7 Guides, News, & Discussion] tomykc:
We will se when the oreo update rolls out what sot we will get.

Do you maybe know a good app wich can tell how many charge cycles my battery has? I found an app and it says 48 charge cycles, i dont believe in the bc the phone is 1.5 years old.
[Samsung Galaxy S7 Guides, News, & Discussion] *Detection*:
navigate here and open the file with a text editor / viewer

/sys/devices/battery/power_supply/battery/battery_cycle

Mine says 259 and is 17 months old

Interestingly, /sys/devices/battery/power_supply/battery/battery_capacity_max states 990

Can you check yours too? See if that is how Samsung artificially cripple them?
[Samsung Galaxy S7 Guides, News, & Discussion] ionutt79:
13 months old battery

battery_cycle - 356

battery_capacity_max - 983

4h SOT with an average use - fb, whatsapp, 4G data/wifi always on, performance mode: optimised, WQHD screen resolution, nougat 7.0 (stock rom)
[Samsung Galaxy S7 Guides, News, & Discussion] tomykc:
how can i find that directory?
[Samsung Galaxy S7 Guides, News, & Discussion] *Detection*:
With a file explorer such as ES File Explorer

---------- Post added at 14:57 ---------- Previous post was at 14:55 ----------

OK so the battery capacity value is different, I wonder what happens if we change it back to 3000 for the batteries actual capacity?

We'd need root though, I don't have root, and I don't know if that really is what the phone reads to see how far to charge to either, but it's obviously dynamic and not set at anything solid if ours are different, although close

That's not even 1/3 the batteries true capacity though, so I think we'd notice a big difference
[Samsung Galaxy S7 Guides, News, & Discussion] tomykc:
Heres the result on battery cycle.

In battery capacity max it states 990

Now, im starting to believe that the battery has been changed? The device 18 months old.
[Samsung Galaxy S7 Guides, News, & Discussion] *Detection*:
Possibly, check if the seal looks untouched around the back of the phone, it needs a heat gun to remove it so should be noticeable if it has been removed

Samsung Phone INFO app on the play store can tell you if it has been refurbished too, not sure how it works but I'd assume replacing the battery would count as refurbishment, unless it looks for something else
[Samsung Galaxy S7 Guides, News, & Discussion] tomykc:
Yup, its refurbished :D

Is this bad? As what i can say, from the outside, the phone looks that its in really good shape, no wierd sings that it has been opened before
[Samsung Galaxy S7 Guides, News, & Discussion] nvrmndryo:
It's not bad if it's refurbished, but once phone is opened it cannot be waterproof as before, so be careful in water.
[Samsung Galaxy S7 Guides, News, & Discussion] *Detection*:
Possibly done at Samsung factory or a professional service centre

Either way it looks like you have a new mainboard if the date doesn't match the serial, not sure where each are located, but that would also reset the charge cycle count to 0, so no idea if the battery is new or not
[Samsung Galaxy S7 Guides, News, & Discussion] fracarol:
(And if it gets bad you can buy a new battery on Amazon and you're flying again)

I had to say that
[Samsung Galaxy S7 Guides, News, & Discussion] tomykc:
The battery was changed because the phone was getting slow, jokes on you apple hahahaha :D

Everything is working perfect, i will be carefull around watter, thanks for the advice guys :)
[Samsung Galaxy S7 Guides, News, & Discussion] nvrmndryo:
Mine says battery cycle 638,battery capacity max 955.dont know what should I take from this.
[Samsung Galaxy S7 Guides, News, & Discussion] *Detection*:
Maybe it is actually 95.5%

And mine 99.0%

So a brand new battery would say 1000 (100.0%) ?

Just a guess, those seem like optimistic figures for 18 month old batteries though
[Samsung Galaxy S7 Guides, News, & Discussion] nvrmndryo:
Going off topic as didn't wanted to create a new thread.

Since last week I was noticing bubble /color peeling off from inside near left top on my screen, I ignored in the beginning, I had tempered glass installed that's why I didn't notice much , but I removed tempered glass to see what happened and it seems weird. Attaching images please tell me if anyone can figure out why this happened and if I need to worry for display.

* it's from inside, not outside.
[Samsung Galaxy S7 Guides, News, & Discussion] *Detection*:
This is the battery thread, not the damaged screen thread ;)

Make a new thread
[Samsung Galaxy S7 Guides, News, & Discussion] nvrmndryo:
Yes, making new thread!
[Samsung Galaxy S7 Guides, News, & Discussion] Soufiansky:
Been a long time i didnt check my battery SOT/performance, 4h30 SOT with AOD on, wifi and mostly social media. Brightness was around 40%
[Samsung Galaxy S7 Guides, News, & Discussion] audianer:
Over 6h SOT :D
[Samsung Galaxy S7 Guides, News, & Discussion] tomykc:
Hey guys its me again..

So i have noticed something.

When i got my s7 i was on a 2 week vacation. I was mostly at home and i got amazing sot, 5-6 h no problem. Now as i started working again, i bearly get 4h of sot? My signal is at about 75% 3g. Why does my battery drain so much at work and not at home? At home i use only wifi and no mobile data.
[Samsung Galaxy S7 Guides, News, & Discussion] Soufiansky:
Signal definitely.
[Samsung Galaxy S7 Guides, News, & Discussion] tiny_everest:
Because there is a bug https://xdaforums.com/showpost.php?p=75140545&postcount=14
[Samsung Galaxy S7 Guides, News, & Discussion] rauliulian:
1.5 years since I have it. Aod from 7am to 11pm. Wifi, Data and location with battery saving always on. Mostly reading stuff, some whatsapp texting, a little fb, no more than 30 minutes on the phone...I have package disabler installed, no root.

How can I get better?

Thanks!
[Samsung Galaxy S7 Guides, News, & Discussion] McConnor:
Does anyone here by chance know how to reset the battery cycle count - e.g. After changing the battery on a Samsung Galaxy S7. The phone seems to count on after changing even to a original new Samsung battery and it also seems higher battery counts would reduce the maximum charging voltage from 4.35 to 4.2875V sacrificing quite some capacity....

So how would I reset the counter to zero (or whatever value...)? Your help is very much appreciated...

Gesendet von meinem SM-G930F mit Tapatalk
[Samsung Galaxy S7 Guides, News, & Discussion] dgeorge4:
From Gsam, exynos S7 flat
[Samsung Galaxy S7 Guides, News, & Discussion] Alfhw:
Hi all,

in the last 3-4 months the battery of my Samsung S7 Exynos is acting in a weird way.

Every night I switch it in airplane mode and usually in the morning (after 8-9 hours) I found it with a small 1-2% of battery drain which is OK. However sometimes (1-2 o 3 nights a week) I found it in the morning with around a -20% battery drain!

I had no problem at all when the phone was new (bought it in January 2018) but it started 3-4 months ago with Nougat and now also with Oreo. Rom is stock with no root and with all patches.

I've installed GSAM Battery monitor but I can't find anything weird or any draining app.

What drive me crazy is that this problem happens sometimes and not every night. It could happens also during the day if I switch the phone in airplane mode. Sometimes I have no problem for one or two whole weeks.

Could it be a problem with the modem of the rom? But why it happens only sometimes?
[Samsung Galaxy S7 Guides, News, & Discussion] Smiss:
Samsung hates us, they put this in there modem and kernel i think. But there are roms out now that have the Standby Battery Cell drain fix. Means on normal mode(dont need airplane mode) you lose only 2% in 10 hours. Here is the rom i have installed and i can confirm that the battery drain is fixed. - https://xdaforums.com/galaxy-s7/development/rom-galaxy-project-t3792761

I dont know its the kernel, Build Version of the Rom or the modem but here is the exact fix - i really dont know much more ... :) - https://xdaforums.com/showpost.php?p=76635803&postcount=437

"Apple and Samsung fined for deliberately slowing down phones"

https://www.theguardian.com/technology/2018/oct/24/apple-samsung-fined-for-slowing-down-phones​
[Samsung Galaxy S7 Guides, News, & Discussion] Alfhw:
Hi,

thanks for your reply.

After my message I received a new update from Samsung with a new modem. Problem seems gone now and now in the night with airplane mode on I have only 1-2% battery consumption which is ok. Let's see what's happening in the next weeks.
[Samsung Galaxy S7 Guides, News, & Discussion] Smiss:
Links fixed. Sorry for that
[Samsung Galaxy S7 Guides, News, & Discussion] waingro808:
I had the exact same problem after upgrading to Oreo. I put phone in Airplane mode overnight and next day it was drained 30%. It happened about once per week. My solution was to downgrade to Nougat, and it's been perfect ever since.

Is your problem fixed after latest update?
[Samsung Galaxy S7 Guides, News, & Discussion] Alfhw:
I had this problem with both Nougat and Oreo. However some weeks ago I received a new update from Samsung with a new modem and now problem seems fixed. :fingers-crossed: Let's see what's happening in the next weeks.

I did some research and I found that also S8 had this problem after upgrading to Oreo and it was related to the modem. With a new modem the problem was fixed. I also found some few people with S7 who had this problem but also with Nougat and Marshmellow. So I suppose there was a small sleeping bug for years in the S7 modem which activates in some particular conditions (app, settings, how you use the phone...): this could explain why it happens only to few people and why it happened only 1 or 2 or 3 times a week.

What patch month do you have? And which modem? I have 1 november 2018 patch with modem G930FXXU3ERJE.
[Samsung Galaxy S7 Guides, News, & Discussion] waingro808:
I have the Verizon USA S7. I was on G930VVRS4CRG2 (the 2nd Oreo firmware released) when I had problems. I went back to the last Nougat firmware, and no problems for two months now.
[Samsung Galaxy S7 Guides, News, & Discussion] Alfhw:
Mine is a TIM italian S7 with exynos cpu but maybe the bug is the same.
[Samsung Galaxy S7 Guides, News, & Discussion] Rambo_FT:
I've 5h27m SoT, thanks to this rom (find out my message about battery from here)
[Samsung Galaxy S7 Guides, News, & Discussion] daffster21:
https://xdaforums.com/galaxy-note-8/how-to/note-8-battery-fgasoc-fgfullcapnom-t3903417

I know it's note 8 related but, I did some tests regarding fg_asoc, check it out!