[Q] Lollipop Reboots - Nexus 7 (2013) Q&A

Just curious, if anyone has seen any random reboots since upgrading to 5.0 or 5.0.1?
I've played around with lollipop for week or so now, and I haven't experienced one single reboot... Unless, I've initiated it myself that is.. How about you?

Not that but bad battery life is affecting my tablet dramatically.

No reboots to speak of for me, and battery life has been about the same if not slightly better.

I got one on 5.0 (kernel panic). Haven't had any yet on 5.0.1.
itsdacj said:
Not that but bad battery life is affecting my tablet dramatically.
Click to expand...
Click to collapse
Weird. My battery's been the best it's ever been.
All location, syncing, wifi etc left on I'll get 7 hours screen time over two days no problem, with no gaming 8 hours. Idle drain is like nothing compared to all previous versions.
Find out what app is draining it or what wakelock is keeping it up. If you haven't already, flash the factory image without keeping data.
5.0.1 is ****ing NICE.

Related

[Q] Battery life poor since JB

Hi everyone,
My One X used to have brilliant battery life. I didn't turn on the screen that often throughout the day, but I was able to regularly check the news, send and receive texts, make a few calls and - crucially - keep my Wifi on for the entire day. With this setup, I was regularly getting 4 or 5 days of usage without having to charge my phone. However, as soon as JellyBean came along as an official update, I grabbed it... since then, I'm lucky if I get a day and a half out of it before I need to plug it into the wall.
I'm not running any custom ROMs: just whatever I get through official O2 OTA updates. Battery usage says that 36% of my drain is due to Android OS, with another 20% due to Maps. The rest are tiny, only 2 to 5%. Now I understand that a new version of Android might make some new demands on the hardware, but from what I heard, the update was supposed to improve battery life if anything. Even with the new Power Saver feature on, the difference is minimal, with only a few hours standby time gained overall.
Can anyone suggest anything to remedy this, or is this fairly normal? It's not world-ending and perhaps I was just really lucky to get 5 days of use in the first place, but thought I'd ask the experts before I grin and bear it. Thanks in advance for any help or advice.
19 hours and 40 minutes into this usage cycle, I've got 57% remaining. So it's shaping up to be about 40 hours of usage, down from 120 at its peak. Right now, it's also saying that Android OS has used 99% of my battery... and nothing else is on the list.
Does no-one have any idea what's going on?
Did you make an hard reset when you updated your phone?
This is why when you upgrade your phone to a newer Android version it is better if you perform a hard reset
AW: [Q] Battery life poor since JB
I suffer(ed) also under heavy drain due to maps since update to JB. But I'm convinced it's cause of Google Now. Disabled it yesterday and will check whether it gets better or not. Try disabling gnow and see if it gets better. I also had issues with gsam battery monitor in case you use this.
Sent from a Venom-powered Beast
This is my last charge 3 half screen time isn't bad.
play tekkit lite? come join my server for some fun. 193.35.58.2:25575
Sent from venom injected one x
Would you consider rooting because custom roms like blade have great battery life
Sent from my HTC One X using xda app-developers app
k-c-0 said:
I suffer(ed) also under heavy drain due to maps since update to JB. But I'm convinced it's cause of Google Now. Disabled it yesterday and will check whether it gets better or not. Try disabling gnow and see if it gets better. I also had issues with gsam battery monitor in case you use this.
Sent from a Venom-powered Beast
Click to expand...
Click to collapse
Thanks for this. Your suggestion got me checking for other people having issues with Google Now and battery life. I disabled it as you suggested and I'm definitely seeing an improvement. It's still not as good as it was, but I think I might be able to squeeze more than two days out of it now.
Do you have stock rom? Because I've just upgraded to JB yesterday and flashed a custom rom, and since then my battery is like 3 times more powerful.
You should definitely switch to a custom rom... Ever since I upgraded to JB I've seen a massive improvement in my battery life.. From barely making it through the day to almost 2days of my typical of usage.
Google Now does seem to kill battery as it polls the Google maps app a lot.. So I usually open task manager to make sure it isn't running in the morning background.
Sent from my Nexus 7 using xda app-developers app

Android System and Android OS draining my battery since updating to 4.1.2

Bone stock, not rooted or rommed.
My battery life used to be phenomenal. I would check at the end of basically every day and averaged 4-8 hours of actual Screen On time. The Screen would account for 40-55% of the usage, followed by all of the*apps*that I had used that day. Android System and Android OS would be pretty far down on the list.*
Now that I have 4.1.2, I'm lucky to hit 3 hours of Screen On time. And now Screen, Android System, and Android OS are accounting for 20% EACH.
I haven't changed any settings or the way that I used the phone. The only thing that has changed is the update.*Is anybody else experiencing this?
I've gotten bettery battery life since 4.1.2, significantly better. Try to perform a factory reset or it could be a faulty device.
Dekz said:
Bone stock, not rooted or rommed.*
y battery life used to be phenomenal. I would check at the end of basically every day and averaged 4-8 hours of actual Screen On time. The Screen would account for 40-55% of the usage, followed by all of the*apps*that I had used that day. Android System and Android OS would be pretty far down on the list.*
Now that I have 4.1.2, I'm lucky to hit 3 hours of Screen On time. And now Screen, Android System, and Android OS are accounting for 20% EACH.
I haven't changed any settings or the way that I used the phone. The only thing that has changed is the update.*Is anybody else experiencing this?
Click to expand...
Click to collapse
Yep and I have more or less tried everything including tweaks galore, every suggestion I coukd find, and freezing several dozen apps.
Nothing can be done about this and my guess is Samsung have made an absolute mess of the update. My HTC loses maybe 1% overnight on a bad day, this loses way over 10%.
I'll prob end up switching back to 4.1.1 but unfortunately it doesnt have the tap to reflow feature in the browser (which I use a lot)... I wonder if I can remove it via titanium and restore the newer version which would have reflow on 4.1.1 ??
I have the same problem. As soon as I took my phone off the charger this morning it dropped to 99%. On 4.1.1 it used to last for a good 20 minutes before dropping to 99%. Also last night after about 6 hours of screen time Android System was at the top of my list. And that is with 20 or so system apps frozen or deleted from running.
What's the easiest way to go back to 4.1.1?
Dekz said:
What's the easiest way to go back to 4.1.1?
Click to expand...
Click to collapse
Odin pc or mobile pc.. but if your rooted.. it is safer to use mobile odin it is faster and will avoid power outrange
sent from GODFATHER Gt-N7100
ARHD V10 with REDPILL KERNEL
Is there any way to get the browser from 4.1.2 onto 4.1.1? Titanium backup doesn't seem to restore system apps.
Zero battery life related issues here with 4.1.2 Im starting to think some people probably messed up their phones too much or just got a flaky unit/battery and 4.1.2 exposed those?
EarlZ said:
Zero battery life related issues here with 4.1.2 Im starting to think some people probably messed up their phones too much or just got a flaky unit/battery and 4.1.2 exposed those?
Click to expand...
Click to collapse
Well I dunno.. I have tried everything and there is definitely a battery drain issue. If it is caused by ebay/whatsapp + facebook, then I'm curious as to why they don't show up in battery usage or betterbatterystats... and I'm also curious why the exact same setup on my HTC EVO 3D does cause these horrendous idle battery drains.
fade2black101 said:
Well I dunno.. I have tried everything and there is definitely a battery drain issue. If it is caused by ebay/whatsapp + facebook, then I'm curious as to why they don't show up in battery usage or betterbatterystats... and I'm also curious why the exact same setup on my HTC EVO 3D does cause these horrendous idle battery drains.
Click to expand...
Click to collapse
Hmm, have you tried using betterbatterystats found here at XDA? It should show you whats keep the phone up.
EarlZ said:
Hmm, have you tried using betterbatterystats found here at XDA? It should show you whats keep the phone up.
Click to expand...
Click to collapse
Yeah already done all that and there doesnt actually seem to be anything using over like 5%.. I have elimated the higher one yet it still drains ovwr 10% at nite. Or in general idleness.
What I became accustomed to with my previous phones was 0% or 1% drain over many hours if the screen was off. Not 2% or more an hour.
1% drain over 9 hours of deep sleep on Wanam2.8
Sent from my GT-N7100 using xda app-developers app
I had the same dreaded android os battery drain issue after updating to ma8. Used to have great battery life before that. After freezing Google search, Google now, still no use. Then i realized I installed another weather app at the same time I upgraded the os. Bingo. Un installed that offending app and that fixed the Android os battery drain issue. Hope this helps.
http://forum.xda-developers.com/showthread.php?t=2107312
That's specifically my DBT rom (stock everything as well) and I've had battery issues and to be honest, it's still better than most other phones, but I'm getting about 40% less life out of my device now.
I have flashed again, I've reset, and deleted everything and still no luck. It's something with the ROM. I hope the next update will fix it. If it doesn't, I'll revert back to 4.1.1 because I would go to bed with 50% battery life, now I have to charge in the middle of the day if I want to get through a long work day with lots of use.
well the new french 4.1.2 N7100XXDMA6_N7100OXADMA5_N7100XXDLK7 is much better than the last one rlsd in december and my battery drains less now
UtkarshGupta said:
1% drain over 9 hours of deep sleep on Wanam2.8
Sent from my GT-N7100 using xda app-developers app
Click to expand...
Click to collapse
I have the LTE version so not many choices of custom roms unfortunately.
downgraded to 4.1.1
well i upgraded my note 2 to latest 4.1.2 from 4.1.1 few days ago and battery drain issues started .. i hard reset it many times but same problem.. before update with usage on whatsapp 1% drop down was in 7-8 minutes and after update it was in 4-5 minutes..
so today i downgraded to 4.1.1 again and battery is same like before update again.. cheers..
But you are on the risk of losing your phone itself due to sds
Sent from my GT-N7100 using xda app-developers app
UtkarshGupta said:
But you are on the risk of losing your phone itself due to sds
Sent from my GT-N7100 using xda app-developers app
Click to expand...
Click to collapse
I'm on 4.1.1, to be exact wanam 1.5 and when I test using emmc check my chip is sane and I passed the test. Should I be worrying about sds?
Sent from my GT-N7100 using xda app-developers app
i also have same problem on XXDMB2 .i think only some people have battery problems with 4.1.2. Is it related to emmc firmware 0*1f ? Is the kernel reparing the bad sectors by itself? and what is kworker process?

[Q] Can firmware be related to battery life?

Hi all
This may seem like a stupid question but I'm racking my brain for solutions.
Previously I've been quite impressed with the battery life on the M8, however recently updated to the most recent firmware so I can use the current version of ARHD and since then I've seen a considerable reduction in battery life. For example, today I've been off charge for just under 12 hours and have used the device very little (1 hour 26 of screen on time) and I'm down to 20%, with screen usage right at the top of the battery use chart. I've tried different ROMS, into a GPE ROM, only to see this poor life continue.
The handset was bought from Three in the UK, and on baseband 1.19.21331147A1.09G-20.57.4196.01L_F.
I'm at a bit of a loss basically, and trying to narrow down a culprit. If anyone has got any ideas I'd be very thankful.
munkimatt said:
Hi all
This may seem like a stupid question but I'm racking my brain for solutions.
Previously I've been quite impressed with the battery life on the M8, however recently updated to the most recent firmware so I can use the current version of ARHD and since then I've seen a considerable reduction in battery life. For example, today I've been off charge for just under 12 hours and have used the device very little (1 hour 26 of screen on time) and I'm down to 20%, with screen usage right at the top of the battery use chart. I've tried different ROMS, into a GPE ROM, only to see this poor life continue.
The handset was bought from Three in the UK, and on baseband 1.19.21331147A1.09G-20.57.4196.01L_F.
I'm at a bit of a loss basically, and trying to narrow down a culprit. If anyone has got any ideas I'd be very thankful.
Click to expand...
Click to collapse
I think so, I've been having problems with mine recently but I thought it was because I'd rooted and then unrooted back to stock this week. Now I suspect it might have something to do with the latest FW. I'm managing around 18 hours but there's something keeping the phone awake so it can't get into a full sleep and save the juice.
eternal_inertia said:
I think so, I've been having problems with mine recently but I thought it was because I'd rooted and then unrooted back to stock this week. Now I suspect it might have something to do with the latest FW. I'm managing around 18 hours but there's something keeping the phone awake so it can't get into a full sleep and save the juice.
Click to expand...
Click to collapse
Hi guys. I'm on the latest FW2.22.401.4 too. On my main uni (rooted but stock) I'm not confronting such problems. But on my secondary unit with ViperOne (M8) installed I'm having such problems sometimes (not always). Think this is quite wired, as Venom works with the stock kernel ....
munkimatt said:
[Q] Can firmware be related to battery life?
Click to expand...
Click to collapse
Absolutely. Firmware contains radio baseband, which IMO cell reception is one of the greatest contributors to battery drain (aside from the more obvious factors like screen on time, runaway wakelocks, etc.). It could be that the new radio does not happen to play well in your area. This would also explain if some folks are getting better battery life than you on the same firmware, as reception is often a local factor.

Battery Life AFTER Lollipop Updaate

has anyone else seen a dramatic decrease in battery life after the update? My battery went from lasting all day, to now Im lucky to get 5 hrs before its down to 30%..... overall ive seen a drastic decrease in overall performance... has anyone else expierenced worse performance?
athack said:
has anyone else seen a dramatic decrease in battery life after the update? My battery went from lasting all day, to now Im lucky to get 5 hrs before its down to 30%..... overall ive seen a drastic decrease in overall performance... has anyone else expierenced worse performance?
Click to expand...
Click to collapse
keep calm and factory reset. That should fix the stability and battery life.
LegoFarmer said:
keep calm and factory reset. That should fix the stability and battery life.
Click to expand...
Click to collapse
No better no worse, my battery life has always been great. Example today, unplugged at 7 am , no recharges during the day and it's at 55%.
I used the phone , surfed and checked my texts and email all day
athack said:
has anyone else seen a dramatic decrease in battery life after the update? My battery went from lasting all day, to now Im lucky to get 5 hrs before its down to 30%..... overall ive seen a drastic decrease in overall performance... has anyone else expierenced worse performance?
Click to expand...
Click to collapse
You are not alone. I used to be able to go a couple of days on a single charge. Now I'm struggling to make it 12 hours on a single charge.
I was getting almost 2 days when I first started using the note4. After a few months passed I noticed battery life dropping pretty fast throughout the day. Factory resets helped a little, but not much. Lollipop upgrade plus factory reset has seemed to help. I get through a full day now with light browsing/gps(maps)/gaming and fair amount of spotify streaming. Nothing close to what I was getting fresh out of the box.
I am experiencing similar battery issues. Used to charge my phone once every two days. Now, I carry my charger attached to my hip like a feeble iPhone hipster.
I'm also having issues!
I also have seen a large decrease in my battery life since updating to Lollipop. I tried factory resetting twice and nothing seems to help. I was getting 8-9 hours of screen on time on Android 4.4.4 but now I'm somewhere between 4.5-5.5.
Also my note 4 will occasionally get really hot after just normal web browsing. I'm very disappointed in the update. However, performance seems to be a little better....but it wasn't ever really an issue.
I just read an article on gsmarena about the international version of the Samsung galaxy note 4 receiving a firmware update.....hopefully that fixes the problems we're having. We just have to wait for Verizon to send out the update. (Which will probably take a couple of weeks to months).
One thing to keep in mind is that we (those who are having these issues) need to make sure that we contact Verizon in order to make sure that they acknowledge the problem and send out a fix ASAP.
I'm having the same issues since the update...battery sucks. What's the easiest way to inform verizon?
Passpoint Wi-Fi
Noticed that there is a "new" Passpoint Wi-Fi feature that will automatically connect to certified access points.
This is ON by default after the Lollipop update. (Settings >> Wi-Fi >> Advanced)
I just turned it off to see if battery life improves. Never been a fan of automatic Wi-Fi connection features.
Checking on the Lock Screen Weather/Location Update next.
My Note 4 has the battery drain issue now after updating last night to Lollipop but am giving a couple days to see if any improvement. I did do a battery pull after all the updates (system and apps) and it did seem to help.
My Note originally for a couple of days had the battery drain issue. However, after uninstalling the Google Fit app then a reboot the battery life has been great.
Maybe try a battery pull for 20 seconds as well.
dustball3k said:
I'm having the same issues since the update...battery sucks. What's the easiest way to inform verizon?
Click to expand...
Click to collapse
I think the easiest way to contact Verizon is just by talking with the technical support. Good representatives are hit or miss but Verizon's are generally good.
If you contact them just explain the issue that you are having and they should be putting it on record saying that multiple people are calling in concerning a battery problem. They may have even figured out the culprit (s) and/or found a fIx.
I'm going to be calling today.

Poor Battery Life on Android P

Ever since upgrading to Android P (OTA) 3 days ago I've noticed the battery life is really poor. On Oreo I used to see only 1-2% drain overnight. Now I go to bed with full charge and wake up with only 60% left. The battery drains a lot faster when I'm using it as well.
I used to be able to get 6-7 hours SOT easily. Now I'm not even sure if I could squeeze 4 hours before the battery is flat.
Is anybody else seeing this? Or is this normal considering Android P just got installed and it needs time to "optimize stuff"? But then again, with Oreo I got awesome battery life from day 1.
Weird, I've gotten better battery life..
Better battery here
Interesting. I'll let it run a few more days and see if there's any improvement. Otherwise I'm going back to Oreo.
huiseh said:
Interesting. I'll let it run a few more days and see if there's any improvement. Otherwise I'm going back to Oreo.
Click to expand...
Click to collapse
Give it some time, once adapative battery figures out your usage and adjusts accordingly, you should see better battery life
Sent from my Pixel 2 XL using XDA Labs
Try to factory reset ur device this may help
Thanks guys. I'll wait a few more days. If it doesn't improve will try a factory reset
I'm getting better battery life with Pie
Pixel 1 XL could last a long time. Pixel 2 XL was worse and the worst with Android P unfortunately. I upgraded from Beta, decided to factory reset since there was a bug with Wear OS eating the battery. Got a little better. Got some more little better disabling adaptive battery. I think Doze is still in Android P.
Anyway, it's still not that good. But decent.
I am having the same issue.
when I reboot the phone, the battery seems ok.
But when I start using the phone and open several apps, the battery starts draining quickly.
I installed magisk root, should I do a factory reset and not installing magisk?
I went from a day and 17 hours to 16 hours. This is definiately a piss-poor "improvement to battery life."
Triscuit said:
Give it some time, once adapative battery figures out your usage and adjusts accordingly, you should see better battery life
Sent from my Pixel 2 XL using XDA Labs
Click to expand...
Click to collapse
I'm not sure how much help adaptive battery is going to help. It's meant to limit background battery usage of infrequently used misbehaving apps. If that's not happening adaptive battery won't do much.
---------- Post added at 07:05 AM ---------- Previous post was at 06:57 AM ----------
My battery life has been terrible. Today I unplugged at 93%. I've been off the charger for 9 hours with 4 hours screen on time. I'm at 23%. With Oreo that kind of usage would have me at about 40%.
I'd rather not have the hassle of having to do a factory reset but I might not have much choice.
It hasn't got any better since I reported the issue.
I think I'm going to flash Oreo instead of trying a factory reset as I doubt it would solve the problem. Maybe someone else could try and let us know.
I'll report back after flashing Oreo. Very disappointed. I thought this was the first phone I didn't need to tinker with all these stuff on. I was really happy with it until this issue came up.
So a few days ago I flashed Oreo only to have it tell me it couldn't find any of my backups on Google Drive during the initial setup. Of course, the backups were done when I was on Pie.
So I had to upgrade to Pie then factory reset. This time it found my backups.
Yesterday I managed to get 5 hours SOT with about 40% battery left. Life is all good now
huiseh said:
So a few days ago I flashed Oreo only to have it tell me it couldn't find any of my backups on Google Drive during the initial setup. Of course, the backups were done when I was on Pie.
So I had to upgrade to Pie then factory reset. This time it found my backups.
Yesterday I managed to get 5 hours SOT with about 40% battery left. Life is all good now
Click to expand...
Click to collapse
looks like i'm going to have to do the same. It doesnt make sense how some people are getting better battery and other worse. Are there some of us running apps not 9.0 compatible? might be worth uninstalling everything and adding them back day by day. it'll take a long time though!
huiseh said:
So a few days ago I flashed Oreo only to have it tell me it couldn't find any of my backups on Google Drive during the initial setup. Of course, the backups were done when I was on Pie.
So I had to upgrade to Pie then factory reset. This time it found my backups.
Yesterday I managed to get 5 hours SOT with about 40% battery left. Life is all good now
Click to expand...
Click to collapse
I had a similar experience. Battery life was awful after Pie update. Factory reset and it's back to normal.
ej7631 said:
Weird, I've gotten better battery life..
Click to expand...
Click to collapse
same here, slightly better
It appears I jumped the gun. The problem came back yesterday.
The phone loses about 4-5% battery per hour even on standby. I have no idea what's going on; I haven't installed any new apps and usage pattern hasn't changed either.
One very interesting fact I have discovered is that the issue appears to happen only when I'm on Wifi. When I'm mobile data, all is good. So the phone seems to be doing some funky stuff when it's on Wifi lol.
Oh well, I guess I will try to install BBS and see if I could find the culprit.
mwatson said:
looks like i'm going to have to do the same. It doesnt make sense how some people are getting better battery and other worse. Are there some of us running apps not 9.0 compatible? might be worth uninstalling everything and adding them back day by day. it'll take a long time though!
Click to expand...
Click to collapse
That is entirely possible. I guess we have apps that have not been written/optimized for Pie? That would explain why some people are not seeing the issue and some unfortunate ones like us are.
I factory-resetted the phone, the issue is still there. I don't have any strange app. It seems that it's just the system that is consuming the battery.
That's very strange I've had the complete opposite, battery life has improved, if reset didn't fix it monitor your apps for unusual battery usage and limit the background activity of battery consuming apps

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