Battery life goes to sh!t after security updates - Google Pixel 2 Questions & Answers

OK so back in June I did the security update and instantly my battery life went to crap. wiped and reloaded twice, nothing helped. We're talking it is draining 8-10% per hour with no use, just idling.
About a week later for no reason, it went back to normal battery drain.
Yesterday I installed the most recent security update and the same thing happened. Lost 50% of battery in 6 hours while the phone sat on the nightstand with no use. No app updates, and no other changes have occurred. About to wipe and reload again.
Is anyone else experiencing this issue?

selfinfliction said:
OK so back in June I did the security update and instantly my battery life went to crap. wiped and reloaded twice, nothing helped. We're talking it is draining 8-10% per hour with no use, just idling.
About a week later for no reason, it went back to normal battery drain.
Yesterday I installed the most recent security update and the same thing happened. Lost 50% of battery in 6 hours while the phone sat on the nightstand with no use. No app updates, and no other changes have occurred. About to wipe and reload again.
Is anyone else experiencing this issue?
Click to expand...
Click to collapse
Let the phone settle after flashing a new ROM or kernel by 3-4 full charge and discharge cycles.

selfinfliction said:
OK so back in June I did the security update and instantly my battery life went to crap. wiped and reloaded twice, nothing helped. We're talking it is draining 8-10% per hour with no use, just idling.
About a week later for no reason, it went back to normal battery drain.
Yesterday I installed the most recent security update and the same thing happened. Lost 50% of battery in 6 hours while the phone sat on the nightstand with no use. No app updates, and no other changes have occurred. About to wipe and reload again.
Is anyone else experiencing this issue?
Click to expand...
Click to collapse
I have two Pixel 2's and have experienced the same as you on one of them. As far as I can figure, the effected unit must of had a minor corruption or a left over artifact due to the method used to update. Like many on here, I delete the -w ( wipe funtion) out of the update script. I believe that this allows for an opportunity for this to happen. I did eventually do a full reset/ wipe, reloaded from scratch, and resolved the drain issue.
The full reset appears to be the best option and wish you luck on your resolution.

Related

Android OS battery Drain on 6210

I don't know why this is happening... and I am doing quite a bit to try and alleviate it.
When I first got this tablet the battery was fantastic and it maybe used 2% over night when I slept. Now in one hour it can use 3% to 4%.
I have done the whole 9 yards of flashing back to stock, factory reset, all of that.
I sent this in recently to Samsung since I was having SOD issues and told them to fix this problem too but they fixed my SOD problem but not this one.
When in the battery use area in setting android is using any where between 12% and 40% of my battery with over 10 minutes of CPU time. When I first got this tablet android OS MIGHT have used 5% on a bad day.
I am saying this is the problem in terms of my battery but any input would be appreciated.
Edit:
Here is a screen cap of my battery usage (ignore that white line on the graph that was when I flashed LA3 back on to the Tab)

[Q] Battery Stuck at 100% for an hour, shuts off at 20%

Hey guys, i've seen some other threads about batteries being stuck at 100% but they were generally with rooted devices so i figured i'd make one here.
The Problem
My infinity will charge fine, usually 1% per minute and when discharging going from 100% to 35% in about 5 hours screen on time, mainly using web apps, no real gaming, maybe dead trigger for 20 mins per charge. However when i take my tab off the charger it will stay at 100% for over 45 mins, and most recently over 1h 20m, causing the battery reading to be way off. Today it randomly shut down claiming i had 20% left.
Does anyone have any ideas? Like i said device is non-rooted and i dont have much interest in rooting it. Problem started just before we got the Jelly Bean update, and i got the tab in mid august, so it was working fine for a couple months.
The next logical step would be to factory reset and contact asus if that doesn't solve anything. I was hoping to avoid that if you guys had any tips or tricks.
Thanks
My TF700T has just started doing this. So your not the only one. I've only just started to search around for a solution.
sideswipe14 said:
Hey guys, i've seen some other threads about batteries being stuck at 100% but they were generally with rooted devices so i figured i'd make one here.
The Problem
My infinity will charge fine, usually 1% per minute and when discharging going from 100% to 35% in about 5 hours screen on time, mainly using web apps, no real gaming, maybe dead trigger for 20 mins per charge. However when i take my tab off the charger it will stay at 100% for over 45 mins, and most recently over 1h 20m, causing the battery reading to be way off. Today it randomly shut down claiming i had 20% left.
Does anyone have any ideas? Like i said device is non-rooted and i dont have much interest in rooting it. Problem started just before we got the Jelly Bean update, and i got the tab in mid august, so it was working fine for a couple months.
The next logical step would be to factory reset and contact asus if that doesn't solve anything. I was hoping to avoid that if you guys had any tips or tricks.
Thanks
Click to expand...
Click to collapse
I suggest you make a backup then do a a factory reset (twice). After that check to make sure this issue is gone, before re install any apps. If this doesn't resolved the issue, you need to reflash the full Asus firmware. This eliminated your software issue, and the last 1% chance is your hardware.(but very rare).
buhohitr said:
I suggest you make a backup then do a a factory reset (twice). After that check to make sure this issue is gone, before re install any apps. If this doesn't resolved the issue, you need to reflash the full Asus firmware. This eliminated your software issue, and the last 1% chance is your hardware.(but very rare).
Click to expand...
Click to collapse
I've done as you suggested. Including factory reseting the tablet twice.
I've had the tablet off the charger for 14 hours and 28 minutes. And it's still showing 100%...
Worth noting: It was fully charged with the dock this morning. I've taken the tablet off the dock and used it for the day and it's still 100%
Anyone else got any other suggestions?
Same problem here, started two days ago, the transformer shuts down at ˜33-35%. Installed battery monitor app and it reports ˜500mAh still availble just prior to the shutting down. After it shuts down it's dead until I plugg it the power chord, it charges to 100% but then the same story again, shutting down at 33-35% remaining battery left. I've tried the battery calibration app which deletes the batterystats.bin file but that didn't do anything. Also tried three factory resets without any success... I'm on stock ROM but rooted.
Any ideas to what to try now? Or should I wait for the next firmware upgrade and see if the reflashing of the firmware will resolve this?
How do I reflash the installed firmware version, want to try that next...
dbuc said:
Same problem here, started two days ago, the transformer shuts down at ˜33-35%. Installed battery monitor app and it reports ˜500mAh still availble just prior to the shutting down. After it shuts down it's dead until I plug it the power chord, it charges to 100% but then the same story again, shutting down at 33-35% remaining battery left. I've tried the battery calibration app which deletes the batterystats.bin file but that didn't do anything. Also tried three factory resets without any success... I'm on stock ROM but rooted.
Any ideas to what to try now? Or should I wait for the next firmware upgrade and see if the reflashing of the firmware will resolve this?
How do I reflash the installed firmware version, want to try that next...
Click to expand...
Click to collapse
What do your power saver settings show under settings?
Mine are at 10%
Have you factory reset your tablet recently?
Thats OK said:
What do your power saver settings show under settings?
Mine are at 10%
Have you factory reset your tablet recently?
Click to expand...
Click to collapse
Everything in power saver settings is left default, 15%. But the transformer never reaches that level..
Oh, and I also have the same behaivor as the orginator of this thread, the battery shows 100% for good while after a full charge until it stops dropping, forgot to mention that. My tablet is four month old and this just started... Unfortunaltey is feels like a HW issue with the battery reporting the wrong remaining charge to the OS... But I will wait for a new firmware to see if a reflash resets the battery configuration somehow.
dbuc said:
Everything in power saver settings is left default, 15%. But the transformer never reaches that level..
Oh, and I also have the same behaivor as the orginator of this thread, the battery shows 100% for good while after a full charge until it stops dropping, forgot to mention that. My tablet is four month old and this just started... Unfortunaltey is feels like a HW issue with the battery reporting the wrong remaining charge to the OS... But I will wait for a new firmware to see if a reflash resets the battery configuration somehow.
Click to expand...
Click to collapse
My TF700 shut down at 25% battery today. I think it's time to contact ASUS to see what they can do.
BlueChan said:
My TF700 shut down at 25% battery today. I think it's time to contact ASUS to see what they can do.
Click to expand...
Click to collapse
Try to poweroff your device and let it stay down for 1/2 hrs, then power it back on see if that resolved your issue.
You need to recalibrate the battery.
buhohitr said:
Try to poweroff your device and let it stay down for 1/2 hrs, then power it back on see if that resolved your issue.
Click to expand...
Click to collapse
This is what I did. except I left it plugged in over night, then unplugged it, turned it on and it is back to normal.
buhohitr said:
Try to poweroff your device and let it stay down for 1/2 hrs, then power it back on see if that resolved your issue.
Click to expand...
Click to collapse
I tried this to no avail. Worth noting the device was off for about 5 hours when the battery went flat. I've also tried turning it off and charging it.
I have a TF700 on a TF300 dock, and I have found that if I unplug the tablet from the dock, while the dock is plugged into the wall, it stays at that battery level until I plug it back into the keyboard. Deleting batterystats.bin, turning it off, waiting long enough for it to get to 8.4V, and then doing a cold boot seems to fix it.

SERIOUS Battery Drain

i know there are a lot of other threads out there, but I haven't found one that talked about the problem deeper and has a fix. anyways, I'm experiencing a serious battery drain where I charge my phone up to 100, unplug it in the morning, go to school and leave it in my pocket for 2 hours, and it ends up being 70-80% and the screen on time isn't even on the battery stats because I've barely used my phone to have it show up. As im typing this on my phone, ive even lost 2%. Is anyone experiencing something similar and is there a fix for this? At 33% now, according to the battery usage, cell standby is at the top of the list with 10% and screen on time is 25 minutes . Thanks so much
Please post some screenshots of battery stats and someone may be able to help
Sent from my SM-G920V using Tapatalk
My phone is the same way. Even with the latest update that made cell standby way better where it sits at 1-3% my phone drains like crazy. It's been off the charger for 3 hours and 1 hour of screen on time and it's at 57%. They need a bigger battery in the s7.
Check to see if you have a VPN app installed, Firefox, Candy Crush (or other King app), or a weather app. Many use mdnsd that eats power. King apps send data all the time. And there may be some adware that you have that is eating power. Hope this helps...
Sent from my SM-G920V using Tapatalk
Battery Drain
I have had the same problem. With the earlier update I had the issue with (what I consider) excessive drain caused by cell phone standby. With the latest update cell phone standby has taken a back seat to Android System. Here is a screenshot from today. As you can see Android System has more than twice the percentage of anything else. I reset the phone a couple of days ago but that had absolutely no effect. Went to a local Verizon store to complain which naturally went nowhere.
brw9100 said:
I have had the same problem. With the earlier update I had the issue with (what I consider) excessive drain caused by cell phone standby. With the latest update cell phone standby has taken a back seat to Android System. Here is a screenshot from today. As you can see Android System has more than twice the percentage of anything else. I reset the phone a couple of days ago but that had absolutely no effect. Went to a local Verizon store to complain which naturally went nowhere.
Click to expand...
Click to collapse
I did a factory reset in recovery wiped cache twice and rebooted I have had much better battery. 20-30% higher when I leave work. I also kept WiFi calling turned off not sure if that was the drainer.

severe battery drain again pixel xl

I came here because I have a severe battery drain issue. Sometimes I can fix the issue by rebooting the phone and then not using it. This issue has been coming and going I think since android 10 but it may have occurred in android 9. I had this issue a few months ago and the issue stopped on its own. To workaround the issue I was rebooting the phone when I noticed the severe drain and then tried to avoid using the phone.
For example I charged my phone (pixel 1 XL) before I went to sleep. I charged it to about 85% at 11pm. I took it off charge and went to sleep. At 530am I woke and checked the phone to check the time. The battery was at 15% and in power saver mode.. Usually I get 1 day usage (6am to 6pm, with streaming music to my headphones at the gym and messaging throughout the day) and get home with 65% battery. This issue has come back again now that I am traveling abroad.
I reset the phone to factory yesterday and only installed webex teams and whatsapp. The issue persisted yesterday. At lunch, we spent around half an hour eating and the phone was screen off and on the table and the phone dropped from 65% to 55%. I decided to remove webex teams and reboot the phone. The battery remained at 53% for approx 2 hours. I thought eurika, webex teams is the culprit. But unfortunately last night the same battery drain issue occurred and I had to charge the phone again at 5am.
I dont know that the issue is occurring until it is occurring.
The battery usage shows no usage by apps during this issue, and same when I show all device usage - for example I'll have say webex teams using 1% and screen using 1% but the device has dropped 60% of battery and there is no indication of where.
I dont mind to install a custom rom but I have not done any custom installs on this phone at all at this point.
Also I never used NFC until a few months ago for the banking app which I used to have. I just realised NFC was on yesterday and I've just switched it off. I just wont know if this helps until later today when the battery is dropping quickly. Although it just dropped 2% while typing this so I dont think it has helped. I just turned on data saver and battery saver and will see.
I am at a bit of a loss - has anyone else had this problem and found the culprit or a fix?
Update - battery saver and data saver does not stop the battery drain. 2% drop in 20 minutes with phone on the desk with screen off.
I decided to give up, re-install webex teams and go for breakfast; while leaving nfc off, battery saver on and data saver on. At breakfast, the battery did not drop at all. Uptime is 9 hours 50 minutes (cant remember if I rebooted before breakfast) So almost 10 hours later and I have been using the phone over wifi on occasions and a few phone calls and whatsapp. The battery level is now 55% so it appears that the issue has gone away at the moment.
It's driving me nuts as I cannot work out a trigger. It almost seems like something within the android system is doing something and it's being hidden from the systems battery usage calculation. 3rd party apps also do not show any battery drain but the battery drains. If the battery was faulty then I would expect this issue to not get fixed after reboot (or even by itself). I have reset the phone 2 or 3 times now and the issue is still present afterwards.
Tried to google for answers and didnt really find anything apart from one guy saying his phone was draining and getting hot at the same time. Mine does not get hot.
I suspected malware or something like that but I dont see how it can be possible that malware is there after factory reset.
OK I think I have made some progress - although can't be sure because this issue does go away and then comes back! However, this time I am refusing to reboot my phone so I can work on it. I am flying back tomorrow at 4am and so I need battery to last as long as possible. I have installed all of my important apps that I need to use. Given the issue is there when I have only 2 apps, the issue cannot be related to the apps I removed so I installed all of the important ones.
What I have done now:
1. turned off dark mode
2. opened the app permissions for the "google" app and changed the location permission from "always" to "only while using the app".
GPS Location is always off unless I am using google maps anyway but it did not stop battery drain previously!
As soon as I changed the permission app for point 2 above, the severe battery drain stopped. Take a look at the screenshot. You can see the severe drain on the left of the graph. Then the very severe drain was when I Was actively using the phone during the issue. Then I charged the phone. Then I changed the permission and you can see the graph have a flat horizontal line which is showing next to zero battery drain! I do not have battery saver or data saver turned on anymore. And I have been using the phone a fair amount.
Touch wood and fingers crossed. May be this will also stop google from emailing me every month with a google map breadcrumb trail of where I have been going.
EDIT - uptime of the phone is 28 hours and counting. Although you can see the charging points in the screenshot.
I have the same issue. My battery was just recently replaced too. I'm going to try the suggestions in your latter posts and see if anything improves.

Massive Battery Drain even when powered off

For the past few weeks, I've been having massive problems with the battery life of the phone (XT1955-4 RETEU2).
At first the battery would last for 3-4 days (Stock firmware Android 9 February patch) but now it will only last for about 12h, draining about 8% per hour, no matter if I use the phone or just let it sit.
Accubattery reports a deep sleep of ~90% while the screen is off.
Even if I turn the phone completely off it will lose about 5% per hour.
When I turn the phone off in the evening with 40% left, it'll be completely depleted in the morning with the battery LED lighting up when I plug it in.
At first I was on stock, then I unlocked the bootloader, hard bricked it first, successfully followed the guide by sluggedlemon (https://forum.xda-developers.com/g7-power/how-to/guide-recovering-hard-brick-t3989753) and then I checked out some of the custom ROMs.
Later I returned to stock and flashed OCEAN_RETEU_PPOS29.114-134-13_cid50 from lolinet.
Since then the battery life is disastrous.
I flashed the stock firmware again using the LSMA but that would'nt solve the high battery drain issue.
Then I tried to revert to OCEAN_RETEU_PPOS29.114-134-10 (February patch) but that wouldn't help either. (bootloader and modem couldn't be reverted)
All custom ROMs I tried seem to have the same problem now.
As I read similar posts about battery life issues after the April patch, I hoped that the Android 10 patch would fix it.
But even as the Android 10 update arrived and the June update soon after, nothing has changed for the better.
Is anyone experiencing something similar? Especially the battery drain when the phone is powered off?
Or has anyone an idea what could cause this issue?
Any help, advise or idea would be highly appreciated.
TeaTimey said:
For the past few weeks, I've been having massive problems with the battery life of the phone (XT1955-4 RETEU2).
At first the battery would last for 3-4 days (Stock firmware Android 9 February patch) but now it will only last for about 12h, draining about 8% per hour, no matter if I use the phone or just let it sit.
Accubattery reports a deep sleep of ~90% while the screen is off.
Even if I turn the phone completely off it will lose about 5% per hour.
When I turn the phone off in the evening with 40% left, it'll be completely depleted in the morning with the battery LED lighting up when I plug it in.
At first I was on stock, then I unlocked the bootloader, hard bricked it first, successfully followed the guide by sluggedlemon (https://forum.xda-developers.com/g7-power/how-to/guide-recovering-hard-brick-t3989753) and then I checked out some of the custom ROMs.
Later I returned to stock and flashed OCEAN_RETEU_PPOS29.114-134-13_cid50 from lolinet.
Since then the battery life is disastrous.
I flashed the stock firmware again using the LSMA but that would'nt solve the high battery drain issue.
Then I tried to revert to OCEAN_RETEU_PPOS29.114-134-10 (February patch) but that wouldn't help either. (bootloader and modem couldn't be reverted)
All custom ROMs I tried seem to have the same problem now.
As I read similar posts about battery life issues after the April patch, I hoped that the Android 10 patch would fix it.
But even as the Android 10 update arrived and the June update soon after, nothing has changed for the better.
Is anyone experiencing something similar? Especially the battery drain when the phone is powered off?
Or has anyone an idea what could cause this issue?
Any help, advise or idea would be highly appreciated.
Click to expand...
Click to collapse
If it drains when it is off sounds like ur battery needs to be replaced I have a phone that dose that
It looks like there's something wrong with your battery. Maybe you should replace it.
My battery only drains a lot when the device is on standby. To avoid this I use the Naptime app. It helps a lot, you should try it too

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