Galaxy S8 G-950F (Exynos model) - Battery drain - Samsung Galaxy S8 Questions and Answers

Dear all,
I am facing a weird issue with the latest update on my S8 (stock ROM). The phone is NOT rooted. When I installed the latest OTA update, I noticed that Android and Kernel consume the most of the battery every day. This behavior occurred again with an older update but then it was fixed with a subsequent update.
No the thing is that I cleaned the Cache partition and the issue remained. I decided to flash the ROM with Odin and performed a clean install of the ROM. The issue remains the same. I have even installed less apps compared to the apps I used before.
Please see attached screenshots. I am trying to figure out what is the issue. I didn't have this issue prior the latest update (1 September 2018 security patch)
Thank you.

I performed a factory reset as I had similar issue. The battery drain issue seems to be resolved. I also installed much fewer apps than before.
My suggestion is to go for safe mode before doing a factory reset or uninstall all apps which are not essential and again monitor.

Related

[Q] Battery life on 9500 after OTA firmware upgrade

Hi,
I got S4 I9500 on 27th April and the battery was fine and was draining about 4-8 % during night and that seemed normal. Then I did an OTA firmware update to Android 4.2.2 XXUAMDE and since then the phone started draining around 15 % during nights and in comparison it drained a lot during standby. I decided to do a factory reset and now it seems fine. I read in several forum that OTA update messes up the battery life and we have to do a factory reset to fix that. Is there any way to avoid a factory restore every time I do an OTA update or is there any way to update it by connecting it to a PC like samsung KIES, does that prevent such issues ? I'm coming back to android after using apple for 2 years, so I'm kind of a noob
Thank you !
I have a 9505, my battery life reduced a lot too when I updated to ME2. Such a disappointment. I did a factory reset but it didn't fix my problem, though I had flashed back to stock firmware after playing with root.
Is there a out of the box rom without the update that I could try flashing?

Cyanogenmod 10.1 Rebooting Issue

Hi, I bought my GS4 two days ago and immediately rooted it via the motochopper method, and then installed ClockworkMod via the loki method. I then installed the then latest nightly (cm-10.1-20130530-NIGHTLY).
Now I understand that nightlies come with no promises of work, but I was just wondering if anyone else was experiencing a rebooting problem on their device. Mine reboots randomly, and often. Multiple times a day. On two occasions it has gotten itself into a reboot loop (starts rebooting, gets to the lock screen, and immediately starts rebooting), in which i needed to pull the battery. Still having the same issue on the May 31st build.
I'm just hoping that someone else has this issue, other then just me. Any ideas to fix it would be amazing!
Use a touchwiz rom, problem solved.
CM is nice for sure but, it seems to always be broken.
Fixed!!
After dealing with the issue for a few more days, it continued to get worse. I could no longer uninstall apps (every time I did it would reboot), and it became more frequent, even with updating to the most recent nightly every day.
I finally got fed up with it today. I did a complete wipe of data, cache, and dalvik cache, and reinstalled the latest nightly (cm-10.1-20130530-NIGHTLY). After installing gapps i turned it on and am no longer experiencing any issues!!! Even after i reinstalled all of my apps and restored the data using titanium. Hopefully it has fixed it completely, only time will tell over the next few days.

Galaxy s7 overheating ( xposed involved ? )

Hi,
I recepty run into a problem that I can not fix by myself.
My galaxy s7 started to overheat (it overheats during normal usage, browsing Web etc.)
1. I was using the phone rooted with CF autoroot without a problem for a month or so
2. I installed TRWP and then Xposed framework (all the correct files following guides from this forum) and it worked all OK.
3. 2 days after the above installation I decided to make a fresh clean install of ROM. I found a new updated ROM (June update) of the stock XEO ROM that I was using.
I made a data reset and factory reset with TRWP (wiping all) and then flashed the new ROM with Odin.
I rooted it and installed xposed.
4. Phone started to overheat during normal usage.
5. I tried to flash the new ROM without installing xposed, then trying flashing ROM without even rooting it later. I finally even flashed the "old" ROM from before the June update, with no rooting or touching anything, and it still overheats.
The clues I found as far:
1) i read somewhere that xposed can cause overheat like I described but I don't understand how it could be after I wiped de device so many times and running stock unmodified rom?
2) i read somewhere that there is some Google account backup bug that makes devices overheat which seems to be connected with the 3rd point
3) it seems that Android System battery usage is higher than normal
4) the device overheat mostly on the right middle part of the phone, along the right edge of the phone a little below the power button.
5) i don't belive it's user app related because the problem exist even after fresh install of rom without additional apps installed
I would really need some advice, because I ran out of ideas what to do.
Hello, our situation is similar... I've googled the issue and I've found no solution. My overheating problems started after I installed Xposed framework. Few minutes before, I rooted my phone with Odin and installed TWRP. After I used a module on Xposed, my phone began overheating on the right part of my phone below the power button as you described. I immediately uninstalled Xposed.... nothing worked, flashed my phone back to the stock rom....still the same. IF EVER FIND A SOLUTION, PLEASE SHARE IT WITH ME... I'M SO WORRIED. THANKS.
Possibly a long shot, but I would be opening the occulus app and seeing if it needs to update.
That issue was causing a bunch of phones to overheat last week. Solved by opening the app and letting it update.
Sent from my SM-G935F using XDA-Developers mobile app

Random reboots after nougat update

Anybody else's phone rebooting every few days..?
It hard reboots (Galaxy S7 edge screen), so i thought it might be hardware failure.
Haven't downgraded to 6.0 to check.
I don't have an sd card inserted (because the one i had corrupted which caused my phone to randomly reboot, now i took it out and it still does it)
Also, I noticed that every time it randomly reboots, the battery percentage drops significantly.
G935F, stock
re: reboot issues
wpbogdan said:
Anybody else's phone rebooting every few days..?
It hard reboots (Galaxy S7 edge screen), so i thought it might be hardware failure.
Haven't downgraded to 6.0 to check.
I don't have an sd card inserted (because the one i had corrupted which caused my phone to randomly reboot, now i took it out and it still does it)
Also, I noticed that every time it randomly reboots, the battery percentage drops significantly.
G935F, stock
Click to expand...
Click to collapse
Before you updated to nougat 7 did you do a full and complete wipe
which includes wipe system, data, cache, dalvik cache and last but
not least did you do a factory reset in twrp recovery before odin
flashing the Nougat firmware?
Are you 100% sure that you odin flashed the correct Nougat 7 firmware for your S7 Edge?
Flashing the wrong firmware can cause rebooting issues and fast battery drain.
Flashing without doing a full and complete wipe can cause rebooting issues too.
Good luck, have a great day!
Misterjunky said:
-snip-
Click to expand...
Click to collapse
well, i had a clean 6.0 install which upgraded to 7.0 via ota (UK BTU firmware),but thanks i suppose
(and i also factory reset 7.0 many times)
I am getting random reebots since nougat. I flashed the bell nougat (in on Rogers in canada) and then flashed the Rogers CSC. Things seem to check out so I'm not sure what's wrong. I am going to try to get the Rogers nougat files and see if that addresses the issue.
Sent from my SM-G935W8 using Tapatalk
I have the same issue.... I have unlocked phone on a thai carrier
You DO NOT have to do a 'factory reset' every time you have an update, not even for an operating system update.
I don't know where this comes from but it's stupid.
These updates are designed to integrate with existing systems!
You are as likely to solve any issues with a few reboots.
If you have a problem it's likely due to software conflicts of an app you've installed, not the operating system. Android is pretty good sorting itself out.
So, you do a factory reset with all the hassle of trying to get things back to where you were and then you install another app which causes an issue and ...
Pointless as are the cache wipes always suggested. Android is good at managing resources.
At least with a cache tidy up you're not back to square one
I wished folks would stop suggesting factory resets at every opportunity. Mad.
I get them too, i`m on the lastest NEE software updated via ota. Randomly, when i get it out of the pocket, it says enter pin number because your phone was restarted, i`m using fingerprint lock.
Hello I have a Galaxy S7 and since the update to Android Nougat 7.0, my phone restarts randomly, it can stay an entire week without restart and it can also restart 2 days in a row. It's totally random. I have reset to the factory settings and I have reinstalled only the most important applications (facebook messenger, viber, yahoo mail) but unfortunately about ten days after reset, the problem has reappeared. What could be the cause of this problem? For info, the firmware version installed on my phone is: G930FXXU1DQBO. Also, I saw on SamMobile that the countries that received the update later, had a new version. Could the problem come from that? Is this a bug in the firmware installed on my Galaxy S7. Thank you in advance for your help.
Sadly I have the same problem. Oddly enough this is my first handheld which I didn't root and the first I am running into such issues with.
Got a OTA update to Nougat and I am getting almost daily random restarts.
I wasn't able to discern any patterns so far. Sometimes while it is charging, sometimes just being in my pocket. It doesn't run hot as if an app is running havok nothing.
So far I cleared the cache and that seemed to help but alas it started again.
Does anyone have an idea what is left to try? I would do a complete wipe, but others reported that it did jack for them so I am hesistant to try it.
Sorry for My bad English, i m italian.
Try to remove Chrome. The issues is there for me.
Bye
I have some problem. Not to mention battery life severely reduced after update to nougat. usually 5h screen on time to now 2.. max 3h. SAD.
Samsung Galaxy S8+ Random Reboots
Same problem with my Samsung Galaxy S8+ running Nougat. Purchased the phone from AT&T and received it 3 days ago. It randomly rebooted twice so far, once when I was looking at photos and once when using the play store
Olynth said:
I get them too, i`m on the lastest NEE software updated via ota. Randomly, when i get it out of the pocket, it says enter pin number because your phone was restarted, i`m using fingerprint lock.
Click to expand...
Click to collapse
I have the same problem. It is completely random, it can happen every 2 days or once a week. Even after a factory reset, this problem of random reboots still persists. The firmware version is G930FXXU1DQBO and I still have not received a new update. Have you solved your problem?
GeekTN said:
I have the same problem. It is completely random, it can happen every 2 days or once a week. Even after a factory reset, this problem of random reboots still persists. The firmware version is G930FXXU1DQBO and I still have not received a new update. Have you solved your problem?
Click to expand...
Click to collapse
Same here sometimes once a month, sometimes twice a day. No idea why. Probably its Sammy
xantrk said:
Same here sometimes once a month, sometimes twice a day. No idea why. Probably its Sammy
Click to expand...
Click to collapse
Do you reset your phone to factory settings? What is your firmware version? It seems that the old versions are not very stable.
GeekTN said:
I have the same problem. It is completely random, it can happen every 2 days or once a week. Even after a factory reset, this problem of random reboots still persists. The firmware version is G930FXXU1DQBO and I still have not received a new update. Have you solved your problem?
Click to expand...
Click to collapse
No, the problem is still here, i did not receive any software updates so far. Sometimes it reboots even twice a day, random, sometimes 2-3 weeks without reboot. Waiting for ota update, maybe it will solve it.
GeekTN said:
Do you reset your phone to factory settings? What is your firmware version? It seems that the old versions are not very stable.
Click to expand...
Click to collapse
Resetting on february build helped. Reboot free since almost one month. But im sure it will come back, It did before.
xantrk said:
Resetting on february build helped. Reboot free since almost one month. But im sure it will come back, It did before.
Click to expand...
Click to collapse
After receiving the February version, did you receive a corrective update? If this is the case, it may be the update that has solved your problem.
My galaxy s7 have the same issue, rom Brazil zto, full cache wipe data, reinstall rom, i don't know what to do it,
robertorochajr said:
My galaxy s7 have the same issue, rom Brazil zto, full cache wipe data, reinstall rom, i don't know what to do it,
Click to expand...
Click to collapse
Since when did the restarts start? What is the firmware version number of your Galaxy S7?

M9+ Marsmallow random restart problem

Hi!
First: Sorry for any miss spelling.
I successfully installed Marsmallow on my device with a weird way, but I have a problem with it.
It turns on well and I can use it (no bootloop or freeze on HTC logo).
After a random amount time, it seemingly freezes and exactly 10 secs after, it restasts itself from the HTC logo.
First, my way of installing 6.0:
I experienced the 25% error when I first tried to install 6.0 with the legit OTA software upgrade with my Europe version M9 plus (I Don't remember it's original build number, but this is a European modell). So I started the trial/error way of upgrading.
First thing was, bootloader unlock, and factory reset through recovery.
Second was finding here on xda a RUU collection for this device here
And I downloaded this one:
0PK7IMG_HIAU_ML_TUHL_L50_SENSE70_MR_HTC_Europe_1.85.401.6_Radio_1.1506V24P21.2005.0505_HT[W.T]_release_446584_signed.zip
I renamed and installed it with download mode.
I barely set it up, knowing what is my goal, and started OTA from there.
In short:
3 security update popped up for Lollipop, and then the first Marsmallow update.
It got through the 25% error, and installed without any problem, and with many update reboot.
After it booted, I checked if any more update was available and a second (security/bug fix) update popped up. (More on that later)
I did not updated thinking I got this far I might as well set it up (it is my daily driver).
I started to download my apps, but in the middle of it, freeze and automatic reboot.
I though it was okay, I continued the downloads and got into the settings to set that up... random freeze and reboot.
These happened random , not related to anything
I started to worry so I did that update.
After that, the problem remained, but less frequent and still seemingly unrelated.
What I tried:
Safe mode - nothing changed.
Factory reset - nothing changed.
First setup, then cache reset - nothing changed.
Keeping the phone's temperature low and monitoring it - nothing changed except it was cooler a bit of course.
Tried to block every possible app (even some system apps) without root access and using it a bit - nothing changed.
I tried these with the first 6.0 update as well.
This is where I need help. Any ideas what is the problem? I can post screenshots if needed.
I really like this phone despite the negative reviews and the lack of custom roms.
Thanks for every question and answer!

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