yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] netra3441:
Try to tell the forum your concrete problems, maybe we can help.

On my Samsung Galaxy Tab A 10.1 (2016) tablet I also had the problem, that mounting, wipe (formatting) /data was not possible in TWRP.

But there is a solution how to handle that on youtube:

Watch this and read the instructions in the video, if this is your problem!

Beside this, if TWRP is on your device, than all other should work also.

I run two Samsung Galaxy S7 smartphones with LOS 20, and the u.m. Samsung Tab A 10.1 (2016) tablet with LOS 19.1, all devices work properly with LOS.

Please be patient, and read all instructions carefully. In the regular just not following the instructions point by point is the problem.

You will make that!
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] Shiningb:
Came back to LOS20 to do some testing...

The system is running very well with good multitasking and excellent performance

I encountered some occasional lag when opening the camera in different apps. I also faced a bug once where I had music playing and the phone crashed with a loud error sound.

But

My main complaint here is battery life

It's draining a lot with screen on usage

I checked the Frequencies that the CPU are using and I've seen that the Big Cluster is having some sort of touchboost at 1248mhz and Little Cluster is at 754mhz

Considering the Frequency Table in stock all have lower minimums I tried to modify it by using simple methods but they avoid being kept at place.

The minimum frequency of each Cluster is higher than usual as well...
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] netra3441:
Hello mate,

if you have complaints, three things apply here:

1. Please write in clean English and if you can't, use a translator app.

2. Moderate your tone, insults will not get you anywhere.

3. Write in detail what problems you have or where you see points of criticism.

Without observing these forum rules, which certainly make good sense, your input is completely worthless.
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] netra3441:
Well... the battery life seems really to be a little weak... I own my Samsung Galaxy S7 since 2016 and do not remember yet, how it was with stock rom.

Second, I have in each room of my apartment charging units, and when I was outside f.e. with a car (what the last years did not happened) I always had charging cable in the car too.

So, I charge my S7 two times a day. Isn't that normal?
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] netra3441:
There are a few things you don't seem to know or haven't understood yet:

1.

Every LOS supervisor/maintainer does this on a voluntary basis and free of charge, and has a lot of work to do with it. If you're now swearing at @Ivan_Meler, that's simply not okay.

2.

Can you do it better than Ivan? If so, then prove it - but don't scold him, ok?

3.

Unfortunately, like other manufacturers, Samsung has packed different technology into its smartphones. That's why there are S7s that get warm, others, like mine, don't. Same with other issues.

4.

We can all be happy and grateful that LineageOS and its maintainers exist, and that we can use up-to-date Android on our legacy devices! We all have to be equally grateful to the people here on XDA for making this forum available.

In short:

The way you are appearing here is not correct.
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] netra3441:
I'm sorry but you don't understand:

Nobody takes you hostage. You either use LOS and accept that this is voluntary and unpaid volunteer work where not everything is perfect, or you don't.

So it's better to just buy a brand new smartphone with the latest StockROM and that's it.

Or compile LOS for your old device yourself and do it better than Ivan.

If you can't, keep quiet instead of incompetently accusing the man.

I use my S7, which I have owned since 2016, also daily since LOS 18 (Android 11) and also with social media and it always does what it is supposed to. It runs also fine with LOS 20. Better than with LOS 19.1...

I don't use banking apps because online banking with mobile devices, which are insecure per se, is just nonsense. Also I never do online ordering with online payment, because this is same nonsense.

Again, constructive criticism is always welcome here. But not rabble and bashing.

If you have something to say, present it in a concrete and orderly manner, provide references to your findings. But if you only bring generalities, you can do that too, because not all of us are programmers, but do it politely and friendly, and never forget that you didn't pay a cent for LOS, so you have zero claims.

I really don't understand what some people think...

You are also comparing apples to pears:

GrapheneOS works exclusively on Google Pixel devices.

If you like this thing that much, then stay there and don't start working with an S7, which is a hot potato indeed, because of course manufacturers like Samsung are always trying to make it difficult for the people at LOS.

Realize that manufacturers see LOS as an enemy because LOS allows customers to stay with their old device longer or even forever. Manufacturers like Samsung just want to cash in, an alternative operating system just gets in the way, so measures are taken.

As far as I know, this is different with Google Pixel smartphones and GrapheneOS: Google technicians work there... so a completely different starting point than if you have to completely adapt an OS to a smartphone whose hardware manufacturer also builds in obstacles. ..

Come down from your sense of entitlement.

If you like GrapheneOS better, buy a good used Googe Pixel and live and work with it. Absolutely okay.

But don't scold @Ivan_Meler here without any substance or background knowledge.
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] ScanX:
Here are many who use Ivan ROMs and appreciate the quality of them. Just ignore the troll!
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] Shiningb:
You charge your phone twice?

Interesting...

I've been stuck on Pie One UI up until now so I'm just comparing those while being aware that we're not using an older version of Android.

I just wanted to be able to use lower CPU minimums to ensure music playback battery life can be reliable and the Screen on time is not drained away by simply messing with the UI...

But regardless, it is being an amazing experience to use A13 this fast in our devices!
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] netra3441:
Yes, when I use it often, I charge minimum one time per day, in the regular twice. But this is, since I have it, since 2016.

And yes, the S7 has a very good hardware, and @Ivan_Meler does a good job though...
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] netra3441:
Man, you still dont understand!

Each LOS rom is done by a maintainer. @Ivan_Meler is just one of them.

When the maintainer of the LOS for the Samsung Galaxy S10 had built in those functions, you prefer, than this is a special thing of that special maintainer.

@Ivan_Meler had not included these features, you mention, in his LOS for the Samsung Galaxy S7 - because the very most of us S7 users do not need these functions.

And just, because Ivan does his rom, as he thinks to do it, that does not mean, that this is no LOS.
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] netra3441:
📌

Well, folks, I guess, we maybe have an issue now with LOS 20.

@Ivan_Meler could you please check that?

I had charged my S7 up to 100%.

After that charging I did not used it.

Since the charging up to 100% the S7 lost 22% without doing anything.

No apps working in the background.

While just typing these lines in an editor, the S7 lost 2% of battery... adding these lines in here, costs me alltogether 5%...

Something really looks to be wrong...

Hint: the S7 is cold, no warm battery.
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] Ivan_Meler:
check your gapps, ive noticed that nikgapps caused significant drain without reason after being dirty flashed over for a long time, either that or battery calibration got messed up
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] netra3441:
Hey Ivan,

thank you! 👍🏼

I read about, that NikGapps have issues more and more.

When I want to change from NikGapps to OpenGApps, then this means to make a complete new installation, right?

Yes babe... that is, what I like really... 😉
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] Zorgl82:
Hi Ivan,

I have the same issue since february release, i thought it was my battery who was out of order, but i see that i'm not alone. I use LOS 20 since december 2022 and everything was good so far.

Thanks for your analyse.

Byt he way : great job, i use your rom since 2020 !

Zorgl
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] ssauger:
If you wipe system partition, gapps are also gone and you can change to open gapps. Please correct me if i am wrong.
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] netra3441:
MoinMoin forum,

("moinmoin" is german, means a good morning, and is said in the area of Oldenburg in Lower Saxony state in Germany day and night...) ;)

Well... it looks like we gonna have a party here 😇

And I also saw, that moderator was active 👍

But now lets talk a littlebit technical:

This night I charged my Samsung Galaxy S7 completely - and did not touched it since an hour before these lines.

It was charged 100%, but just not in usage, it lost 28% on battery now just by laying arround unused. Absolutely no usage.

I will give it a try with changing from NikGapps to OpenGapps.

But I remember, that with LOS 19.1 a few months ago there was also an issue with the battery - @Ivan_Meler can it be, that the actual battery problem in LOS 20 maybe is the same?

Please give us a hint about this, Ivan - and I am sorry for the inconvenience, Ivan, but this battery stuff is really an issue.

(It would be nice, if we all could use our S7s without battery... but actually this might be not possible ;))

One remark to that guy, who was so aggressive:

He wrote, I saw that in the eMails, that he does not use Google stuff, so no GApps, but also has that battery issue in LOS 19.1 and 20.

What, if he is right with that, if this battery stuff is, in fact, not the reason f.e. with the NikGApps?

Greetings to you all,

netra3441
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] netra3441:
Well, this sounds interesting, because it would not make it neccessary to install completely new.

But: anyone more knows about this hint of @ssauger ?

@Ivan_Meler ? Does this work?

I just want to be safe by doing this, because for me as a handicapped person it is hard work to make a new install because of that Gapps stuff.
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] ScanX:
This is definitely triggered on the gapps stuff. I've always used vanilla LOS. These battery problems never surfaced.
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] netra3441:
Ok... thank you.

Just to be sure: this means, that if one installs just the LineageOS, he does not have battery issues?

But if so, what is about those rumors, that the battery issues are also in LOS without the Gapps?

And why and how the Gapps can influence the battery?

For me this is important, because vanilla LOS ist not usable for me, I need several apps from the Google Play Store, without those I cannot use the Samsung Galaxy S7 completely.

MicroG is also no solution, because may of the apps from Google Play Store, I use, do not work with MicroG.
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] ScanX:
At least that applies to my device. As I said, I never had above-average battery consumption.
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] netra3441:
Well... thats mad.

Still dont understand, how the Gapps can influence the battery... and why they do so...

I will give now a try on my testing S7 with MindTheGapps, because this is the Gapps, what is officially recommended GApps solution by the LOS team for its custom ROM.

We will see.
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] netra3441:
MoinMoin,

I had asked Nikhil, the maintainer of NikGapps about the battery drain and his product, @Ivan_Meler had talked about here.

I did, because from all the Gapps, wich were listed here on XDA, just the NikGapps had worked propery with my Samsung Galaxy S7, either with Ivan's LOS 19.1 or 20.

I had tested this today, it was boring, but in fact only NikGapps work fine during installation with TWRP and later when setting up the S7.

Because I need that Google stuff, I have to install a Gapps - and because here only the NikGapps work, I have to take them.

Here is Nikhils answer:

https://xdaforums.com/t/android-13-gapps-nikgapps-arm64.3915866/post-88348173

Hi,

There are plenty of reasons which can be responsible for battery drain. To name a few

1. Spoofing your device to make it look like pixel leads to battery drain as it makes google execute processes that are exclusive for pixel and ends up failing because your device is not pixel

2. Any app that acquires wake lock continuously drains the battery, sometimes it's the kernel that's responsible behind it.

3. A lot of location accessing apps - they run in the background and eat up the juice and we keep wondering what's going on.

To summarize, one cannot hold any gapps package to be responsible for battery drain without evidence (logcat showing gapps spamming that doesn't happen with any other gapps)

I suggest, you flash the smallest package - NikGapps core and observe your experience with no mods and just basic apps.

The over time, keep on adding stuff and determine the root cause.

I answered to Nikhil:

Thank you @Nilkhil

I had tried today a few Gapps with LOS 19.1 and 20 - only your NikGapps could be installed without errors and without trouble later during setting up my Samsung Galaxy S7 with LOS.

I have installed NikGApps Core.

In fact I have installed a navigation app - have now switched of its location accessing, and only will use it, when sit in a car.

The other stuff he talked about is too technical for me.

@Ivan_Meler please tell us:

Do your LOS 19.1 and 20 lets look the S7 like Google Pixel, and if so, does this maybe could cause the problems, Nikhil mentioned under 1.?

I really appreciate your answer, Ivan!
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] Ivan_Meler:
nope it does not spoof any props to pixel at all, if you run getprop | grep fingerprint in adb shell you will see those are s7 fingerprints from stock
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] netra3441:
Ok, thank you, @Ivan_Meler

I will watch that battery drain now a little on my daily driver S7 (your LOS 20 with NikGApps 13 Core) and then we will see... as long as I am at home, this is not so problematic, because I have charging units in each room of my apartment.

Outside that could be a problem, but for the foreseeable future I will not be outside or in car...

We will see... 🤷‍♂️
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] ScanX:
If you can't do without gapps, PixelExperience or Evolution X might be an option for you. Since you have a second device, a test is possible without any problems.
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] Ex novo:
I'm using NickGapps Core on LineageOS 19 (Galaxy S7 Edge) with Battery Saver enabled in settings and battery drain overnight is approx 4%.
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] netra3441:
Thank you @ScanX ... I have installed Evolution X now on my testing S7... looks very interesting. Will need a few days to see, how in behaves...
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] netra3441:
Here is much more actually... but I have suspect: I had used AdAway from F-Droid Store on my first S7 (daily driver)... have removed it now, I will see, how it is now with the battery...
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] netra3441:
MoinMoin guys,

I have now decided to get to the bottom of the battery problems with Android 13 and Samsung Galaxy S7, as far as I can as a normal user.

The Rom LOS 20 from @Ivan_Meler and NikGapps 13 Core are installed on my Daily Driver S7. The device is fully installed with all the apps I need and is ready to use, but it consumes a lot of battery power. I currently have to reload several times a day in order to always have 80% full memory (this is urgently necessary for me as a severely disabled person and wheelchair user, because I always have to reckon with having to go to the doctor or even a hospital, for example).

LOS 20 from @Ivan_Meler is now also installed on my test S7, but without the Google stuff, i.e. without GApps, I am trying to set up this test S7 completely, but without (!) any GApps, and I use the Aurora Store and F-Droid. This is because many say, that the high power consumption is due to the GApps.

Previously (!) I had installed the ROM "EvolutionX" on the test S7, which runs with GApps and is Android 13. It's very nicely done, but I found that EvolutionX uses a similar amount of battery as Ivan's LOS 20 with NikGapps.

Well, with LOS 20 from Ivan and WITHOUT GApps on the test S7, I have to say that the battery consumption is not exactly low either.

Later more.

Question: can it be that Android 13 (LOS 20) on the old Samsung Galaxy S7 consumes too much battery power per se, because Android 13's power requirements are simply very high, maybe too high for those old smartphones?

If so, would it then make more sense to only operate the Samsung Galaxy S7 with an older LOS, i.e. about 18 or 17, i.e. Android 11 or 10?

I would be gratefü for some answers.

Have all a nice weekend!
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] Shiningb:
That's some great observations you got there! I even had changed Gapps to see if the cause was within it.

Then I left Lineage 20 to 19 and I'm surprised!

And now I'm almost getting 4h30m of SOT and battery life in standby/doze mode is satisfying (better than stock in my case)

I'm waiting some days to Magisk the system so that I get better and solid results

I could also observe that some animations in LOS20 were laggy in my end, the more noticeable being the "slide down to open notification panel"

Or multitasking being a little on the slow side

And I have none of those in LOS19

What I still have, similarly to 20, however is the lag (crackle noise) when listening to music while browsing anything or multitasking. I'm not using any audio effects for now and it is a recurrent issue for me.

Just an additional note, that I report those issues to bring into question if there are more things that we can improve in it, not to negatively criticize the work conducted by the dev in any way.

If there is anything I can do such as post logs, I'm available...
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] netra3441:
@Shiningb

Thanks for your information!

It should be noted, that I am also only writing my observation here to contribute to the fact, that the ROM may improve.

I'm not criticizing, I'm very grateful to @Ivan_Meler and I want to help as best I can.

But it really seems, that LOS 20 in fact needs too much battery power, and I remember at the beginning of LOS 19 there was something similar.

@Ivan_Meler please: is there some more possibility to reduce the power consumption in your LOS 20?
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] master373:
I would consider replacing the battery atleast every 2 Years. Since the S7 is 6 -7 years old. battery should be worst anyway if its isnt replaced yet.
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] netra3441:
I dont think so.

Before LOS 20 I had 19 - and there the battery did worked much better, no so much power consumption. And I am not the only one here with that issue.

I own two S7... on both the consumption is high in LOS 20, and much lower in 19.

Last, but not least: changing battery is not necessary. The batteries in both S7 are still fit enough.
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] master373:
my intention was to exclude external factors first. but I noticed too that the battery drains faster. even in standby. Battery drain Also present in Pixel Experience. so yes something is wrong or a13 is just to heavy for this little battery and old soc
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] netra3441:
You are right, @master373 !

Something looks to be wrong. Sure it can be, that Android 13 is too much for sweet little S7... ;) but would'nt that mean also, that the device should be warm all the time? My two S7, running with LOS 20, are not warm at all...

So I doubt about that LOS 20 (Android 13) is too much for sweet little S7...

But I remember, that this battery drain issue was at the beginning of Android 12 (LOS 19.1) the same.

Maybe @Ivan_Meler could

please

🙏 perform some of his special magic ;) now in LOS 20 too to solve that battery stuff?

Or, in fact, there is something wrong with Android 13 itsself, so nothing with LOS 20...

Meanwhile I had tested this matter, have running my testing S7 with plain LOS 20, no Gapps - but the battery drain is nearly the same as with NikGapps and LOS 20 on my daily S7... as long as I am at home, I can charge my S7s... but when I would go outside, and have no possibility to charge, this could be problematic. But going back to Android 12 (LOS 19.1) is no option, because the S7 runs so much better with LOS 20 (Android 13)...

So, @Ivan_Meler could you

please

🙏🙏 🙏 give us a comment?

Thanks in advance! 💋
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] dj3d:
I can't say that I took away with the battery consumption at nikgapps

NikGapps - Browse /Canary-Releases/NikGapps-T/31-Mar-2023 at SourceForge.net

A Custom Google Apps Package that Suits Everyone Needs!

sourceforge.net
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] carli_nero:
Hello, I read about the battery drain and probably nikgapps cause the problem. My experience is

after uninstalling nikgapps completly and new install, the battery brain was gone. To uninstall nikgapps use this link https://nikgapps.com/misc/2023/03/04/Uninstall-NikGapps.html .Its easy!
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] netra3441:
Well... it took much time, but since today I am free of Google on both of my Samsung Galaxy S7, made a new clean install, just Ivan's LOS20 rom, no Gapps.

Aurora Store and Fdroid helped much to use some of the former known apps and find a few new ones. Also the sdcard runs fine formatted as external.

Feels good 🙂

First to mention is: everything runs much more faster.

Now I will see in the next days the battery drain... but it seems yet, that this is much lower now...

🤷🤦🙋
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] Godsend999:
Hi there, the custom ROM runs and performs great, however, there are some slight issues; for starters, turning off the 'dark theme' option does not change the color of the text in the notification panel. Battery life has also taken a major impact, however, I have been able to get around this issue by underclocking the CPU SoC. That's all I have spotted throughout this ROM, but apart from that, it's good enough for me.
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] netra3441:
Good informations, thanks.

Is under clocking the CPU SoC simple to do? I am not a coder, have no experience with that.

But if this would help additional against battery drain, maybe @Ivan_Meler could please do this in his next update?
[Samsung Galaxy S7 (Exynos) ROMs, Kernels, Recoveri] Godsend999:
I just rely on an app to underclock the CPU, but it does require root permissions to do so.

Edit: It's not really a major improvement from just having it on stock, but it does sort of work. The set clock frequency value also resets for some reason and I have no idea as to why it happens.