12-19-2017 10:44 PM
65 123
  1. Eric Peterson8's Avatar
    Edit: 6 hours, 18% use, as bad as ever. The phone actually told me to reenable play services otherwise maps won't work. I am mildly impressed. I reenabled. Disabling google play services didn't save any battery.

    Sahin_UK, I didn't get better battery life on WiFi. However I also had mobile data on along with Wifi. Even when I turned off LTE (only allowed GSM) and the phone said I had no service, I had large battery drain. The only way to stop the battery drain is airplane mode.
    05-16-2017 09:28 AM
  2. Eric Peterson8's Avatar
    Oh good, my contact list is empty. Apparently the phone thinks that I need to sync up with the empty contact list that it saved after I factory reset. Anyone know how to turn off syncing, backup and every other bit of networking crap?
    Edit: go to settings, accounts, google, and turn it all off. too late for my contacts though.
    05-16-2017 04:40 PM
  3. Eric Peterson8's Avatar
    Ultra power saving mode? Nope, still chews 2 to 3% per hour depending on phase of the moon, weather or some other mysterious factor, not usage, not time of day, etc. The 112 hour estimated battery life for ultra power saving mode is a complete lie. Just more evidence of bugs in the OS.
    05-17-2017 02:04 PM
  4. Eric Peterson8's Avatar
    After 11 hours, Device Idle is 10%, Android System is 9%. At 1% I have Cell standby, Android OS, Google Services, Screen, and Wi-Fi. But Wifi is off and has been off for a few days. Sprint forum "grand master" says take it into the Sprint store and have them reflash it. Not sure when I can get to a Sprint store.
    05-18-2017 03:52 PM
  5. Eric Peterson8's Avatar
    I'm going to ignore the Sprint forum "grand master" and instead request that I get refreshed back to marshmallow. I don't need more superstition and assuming there is nothing wrong with nougat. I have read in this forum that I can flash marshmallow myself using Odin. Does anyone know if a Sprint store can reflash my phone back to marshmallow, or will I have to do that myself.
    05-22-2017 11:08 AM
  6. Eric Peterson8's Avatar
    There was a system update. I downloaded, now it is installing... Installed. The software version says G920PVPS4DQE2 and G920PSPT4DQE2 Fully charged, disconnecting charger now...

    Worse so far, at least 3% per hour idle drain. Device idle and Android System chewing up battery (i.e. a bug). I just wiped the cache and I am recharging.
    05-24-2017 10:39 AM
  7. Eric Peterson8's Avatar
    I installed the GSAM app. It says held awake 2h14m and deep sleep 14m. Averages are doze time (light) 14h51m and doze time (deep) 38m20s App usage now down to 37% (started much higher). The app usage is all "combined". Like I have said above, it's not the apps since the same problem occurs in safe mode, "ultra" power saving mode with no apps and it happened after I factory reset before I installed any apps. The charts show medium phone signal and CPU freq bouncing around from 0.5 to 2.1 GHz.

    On the regular battery screen the two highest uses are still Device idle and Android System. Android OS and Screen are 3rd and 4th but usually trivial.
    05-25-2017 11:54 AM
  8. Eric Peterson8's Avatar
    4 hours, 13% drain using the Greenify app. I didn't expect improvement since Greenify supposedly just stops apps and running safe mode and "ultra" power saving mode without most apps made no difference. Highest usage again: Device idle and Android System.
    05-25-2017 07:12 PM
  9. Eric Peterson8's Avatar
    I went in the Sprint store at 9AM this morning. The nice young woman took a look at the phone, commented on the worthless battery monitor apps. I agreed although GSAM is not completely worthless. She said they cannot flash the phone back to marshmallow nor reflash nougat. She also said she had an older android tablet that has the exact same problem (idle battery drain not related to any apps). She said we have to wait for an update from Samsung.
    05-27-2017 04:55 PM
  10. ColbyJvonBrown's Avatar
    My battery life was amazing after the Nougat update. Then I downloaded & installed the update that included the May 1st security patch about 5 days ago. My phone froze a day after updating and just went black. It then got stuck in a bootloop for about an hour. After getting it back on the battery life is horrible!!! I backed up everything with Samsung Smart Switch & completely reset the device. Reinstalled Apps & Set up everything as it once was. And battery still sucks. They really need to fix this ASAP. My sot went from 3h 30m to 1h 30m if I'm lucky. I haven't changed my usage patterns or anything. This sucks big time.
    05-29-2017 03:20 PM
  11. Eric Peterson8's Avatar
    My sot went from 3h 30m to 1h 30m if I'm lucky. I haven't changed my usage patterns or anything. This sucks big time.

    Yeah, my phone is not in use much. My idle battery drain is pretty much 3X the drain under MM. But when I do use the phone, mainly taking and emailing pictures, it also seems to be about 3X the drain, more or less. I can literally watch the battery drop about two percent with each picture/email.

    This weekend I tried the settings -> general management -> reset -> reset settings. It keeps data but turns on all the annoying beeps and buzzes as well as many useless features which I have to turn off. The phone seemed to behave well for an hour on battery but then went back to nougat-power-sucking mode.
    05-30-2017 02:09 PM
  12. krisqz's Avatar
    For me, clearing the cache and reboot helps a lot...for a day or two. It has to be an app, and I'm pretty sure it's a 1st party app like Google play services or something.
    05-31-2017 04:15 AM
  13. ColbyJvonBrown's Avatar
    For me, clearing the cache and reboot helps a lot...for a day or two. It has to be an app, and I'm pretty sure it's a 1st party app like Google play services or something.
    I definitely agree here. Google Play Services was always at the top of my list and I'd occasionally see Samsung Push Service. Well Google Play Services finally updated for me. And that helped a little. Well before bed last night I checked for more updates and low and behold there was one for Samsung Push Services. (It's happened before where it has eaten through battery) but I didn't think it was happening again. Especially after a reset. I have just taken my phone off​ the charger & I'll report back later today if anything changes, but so far it looks promising.
    05-31-2017 09:48 AM
  14. kittysback's Avatar
    my battery is horrible! I was fully charged before work and with only using it to receive/send 2 text messages and I brief phone call I was at 65% after an 8 hr work day. I was going to wait to upgrade to the S8 but this battery issue is driving me crazy!
    06-01-2017 08:34 PM
  15. Eric Peterson8's Avatar
    Here's my update: no change. Sprint store can't do anything (except admit that it is a problem for some devices). factory reset doesn't help, nor reset setting, nor clear cache, nor safe mode, nor getting rid or disabling all my apps, nor ultra power saving mode, nor turning off LTE or wifi or bluetooth. Only airplane mode stops the drain.

    As an experiment right now I am trying airplane mode but with wifi turned back on.

    result --> Seemed to use substantial power with airplane mode plus wifi. I guess the next thing is to try just airplane alone again. I have done that for two weeks or so. Obviously the phone in airplane mode is useless.
    06-02-2017 11:50 AM
  16. drone3's Avatar
    turning off location seemed to help for me
    06-06-2017 05:34 AM
  17. Eric Peterson8's Avatar
    Thanks, I turned off location. I think I had done that before but after various resets the location was turned back on. Specifically, google's settings -> personal -> location I'll see what happens. In the meantime there is no change, 3 times more drain than MM with no use and more drain (hard to to tell how much) with any activity.

    Edit: didn't help. I have now disabled everything that can be disabled in the apps menu except for the dozen or so apps that I use. I just updated google play services because the phone complained that maps needed google play services to be updated. I was at 100% but now battery is plunging off a cliff after that update and a reboot.

    Edit2: 6 hours, 15%, no use. Used to burn 15% in a 12 hour day with some use.
    06-06-2017 11:29 AM
  18. drone3's Avatar
    Have you tried to use Package Disabler from 'policedeveloper' ? it's in the Google Play store.
    06-06-2017 10:02 PM
  19. Eric Peterson8's Avatar
    drone3, I used that for a while and disabled about 100 packages from a list I found in this forum. It didn't solve the problem although it helped a little. The normal battery monitor shows Device idle and Android System as the two highest uses. When the phone is sitting on my desk unused, those are the two highest followed by Android OS. And that is it, no apps, no screen, no other entries, just those three.

    Also when I run in "ultra" power save mode most apps are turned off. Same with safe mode. Neither of those modes stops the power drain.
    06-07-2017 10:54 AM
  20. Eric Peterson8's Avatar
    Went to the Sprint repair store to check on reflashing. They discussed other options like a hardware repair, buying a new phone, etc. I insisted on reflashing and ended up with that for free. They even backed up and restored my call and message history, my pictures, etc. Only had to redo my settings and uninstall some bloatware. Restarted, charged, now on battery...

    Edit1: just 2% drop after 60 minutes. Decent, not great but decent
    Edit2 4 hours 12%, with Device idle and Android System at 5% each
    06-08-2017 05:05 PM
  21. Eric Peterson8's Avatar
    One more power drain symptom. Installed and ran the radarscope app that I used to run in marshmallow and it used 10% screen per hour, plus 7% for radarscope, plus other android packages plus the usual Device idle and Android System for about 20% per hour. Never had any drain like that under MM.
    06-15-2017 10:05 PM
  22. Eric Peterson8's Avatar
    Still 2.5% per hour without using the phone. Top drain today was 13% Device idle, 12% Android Sys, and 1% for Cell standby, Google Play services, Samsung Push Service, and Android OS. I plugged it in to the charger, turned on Wifi, and it started downloading Google Text-to-speech. I don't want that. I had it disabled, but somehow it reenabled itself. I have disabled everything that can be disabled under the app menu except Google Play services and Google Play Store, Maps, my 3 or 4 installed apps, maybe a couple of other things. But most of the disable buttons are grayed out.

    Even disabling doesn't really work, my router log shows Facebook. I disabled Facebook although unfortunately I cannot disable Facebook App Installer or Facebook App Manager. There are a lot of other connections being made that I do not want. The whole phone experience is depressing, chews up battery doing a myriad of useless things that I have no control over and invades my privacy big time.

    6/22/2017 19:45:37 PM connectivitycheck.gstatic.com
    6/22/2017 19:45:37 PM connectivitycheck.gstatic.com
    6/22/2017 19:45:38 PM mtalk.google.com
    6/22/2017 19:45:39 PM scontent-lga3-1.xx.fbcdn.net
    6/22/2017 19:45:40 PM play.googleapis.com
    6/22/2017 19:45:40 PM www.gstatic.com
    6/22/2017 19:45:40 PM www.googleapis.com
    6/22/2017 19:45:40 PM hub-odc.samsungapps.com
    6/22/2017 19:45:41 PM android.clients.google.com
    6/22/2017 19:45:41 PM safebrowsing.googleapis.com
    6/22/2017 19:45:45 PM www.wordpress.com
    6/22/2017 19:45:46 PM s3.amazonaws.com
    6/22/2017 19:45:46 PM gld.push.samsungosp.com
    6/22/2017 19:45:46 PM graph.facebook.com
    6/22/2017 19:45:46 PM r4---sn-p5qs7nee.gvt1.com
    6/22/2017 19:45:47 PM settings.crashlytics.com
    6/22/2017 19:45:48 PM 2.android.pool.ntp.org
    6/22/2017 19:46:19 PM r2---sn-p5qlsnsk.gvt1.com
    6/22/2017 19:46:33 PM r1---sn-p5qlsnl7.gvt1.com
    6/22/2017 19:49:30 PM android.clients.google.com
    6/22/2017 19:49:31 PM graph.facebook.com
    6/22/2017 19:49:31 PM s3.amazonaws.com
    6/22/2017 19:49:31 PM r1---sn-p5qs7n7d.gvt1.com
    6/22/2017 19:49:31 PM 2.android.pool.ntp.org
    6/22/2017 19:49:53 PM play.googleapis.com
    6/22/2017 19:50:04 PM 2.android.pool.ntp.org
    6/22/2017 19:50:44 PM gld.push.samsungosp.com
    6/22/2017 19:50:45 PM pf-hpx-us1.mpay.samsung.com
    6/22/2017 19:51:12 PM r6---sn-p5qs7n7z.gvt1.com
    6/22/2017 19:51:17 PM play.googleapis.com
    6/22/2017 19:51:50 PM r1---sn-p5qs7n7e.gvt1.com
    06-22-2017 10:12 PM
  23. Eric Peterson8's Avatar
    Downloaded a new update today. I have updates set to manual and hadn't checked for about 2 weeks. New version is G920PVPS4DQF1 I'll post results later today. Was still draining after 15 minutes, so I wiped cache and rebooted, now recharging.

    4 hours, 10%, no usage. In light of all the connections above, I am turning off mobile data to see if that makes a difference. I think I tried that once before and it make no difference. Another hour with mobile data turned off and no change in battery drain, 13% after 5 hours.

    update: now chews the same amount of battery in airplane mode. Going to testing safe mode again as recommended on the Sprint forum. Update: safe mode uses up 2% per hour, divided among Device idle and Android System.

    Next, I think I should run the battery down or figure out some other way to recalibrate the battery.
    06-26-2017 11:34 AM
  24. Eric Peterson8's Avatar
    Ran down the battery to zero and the phone shut off. Then I turned it on and it booted, then shut off pretty much right away. I turned it 14 more times and it shut itself off. After 15 times it didn't want to turn on, so I waited a bit then turned it on, it booted and shut off. I waited again while the battery cooled a bit and turned it on one more time for good measure.

    Now I am charging with the phone off. Once it is fully charged I believe I am supposed to run it down to zero again. But I will also see if the power consumption estimates have changed after this first complete discharge. It's the first time I've had the battery below 40% and I rarely had it below 60-70% especially before nougat.

    result after 100% charging and turning the phone back on: very high drain, 15% in 3 hours. I would say the test failed, but I'm not sure what I was testing.
    06-28-2017 03:32 PM
  25. Eric Peterson8's Avatar
    Has my battery gone bad? I normally never let it run down by much. Why would my battery go bad the day I upgraded to Nougat? Would a bad battery show up as high usage in Device Idle and Android System? Those are always the highest, each about the same, but Device idle sometimes 1% higher. Everything else (e.g. Google Play, Android OS) is 1% or doesn't show up, unless I use the phone and then see some Screen and app usage.

    Update: 4 hours and 12% with no use. I see google play services using 2% out of those 12%. Device idle and Android System use the other 10% So I disabled Google play services and Google Play. Won't be able to install new apps, but anything else should not be affected? I'll see if that helps, although I doubt it will.

    Update2: seems to be helping a little: 7 hours 17%, so only 5% drain in the last 3 hours.
    06-28-2017 11:00 PM
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