Database Users

Battery Drain - Again! events/0 and suspend !

Hi,
I have on my Samsung Galaxy S2 as well as on my Samsung Galaxy Note a huge battery drain caused to 2 processes : "events/0" and "suspend".
I have already read a lot of threads concerning this problem, but without finding a solution.
I found out, that I only have this bug, when activating my Wifi connection (on both devices). I tried every wifi sleep policy, still getting same results.
So finally, my Android OS battery usage is more than 50%, even more than my display.
Does anyone know a solution for this problem, considering that now I'm sure that it's linked to the wifi activation on both phones. (I did a factory reset and there was no battery drain until I activated Wifi without having any other apps installed, besides of System Panel to monitor....)
Thanks in advance,
Regards,
Ben

If your phone is rooted you should 'freeze' or remove the apps "Wifi sharing manager" and "Wifi sharing" with Titanium Backup. Fixes your Wifi-problems.
It's a service that looks for other Samsung Wifi devices constantly when Wifi is turned on, thus draining the battery.

No, my Phone isn't rooted. I was not sure if I should or not, considering the warranty problems. Is there no other way?
A lot of other users don't have this problem, I don't get why I have it-.-

k1ck said:
No, my Phone isn't rooted. I was not sure if I should or not, considering the warranty problems. Is there no other way?
A lot of other users don't have this problem, I don't get why I have it-.-
Click to expand...
Click to collapse
As far as I know, it doesn't really void your warranty as long as you do it the right way and unroot your phone before you send it back to Samsung (if problems occur).
Someone correct me if I'm wrong.
As an alternative you can disable WiFi when you are not using it with apps like Green Power and Juice Defender (although I strongly advise Green Power for it's ease of use).

Thank you.. But there has to be another way to solve this problem, because people I know don't have this bug... without using any batterysaving software. :/

I guess it's a native issue of your device...
Sent from my Motorola Xoom™ with Tiamat Moray using Tapatalk

k1ckdapro said:
Hi,
I have on my Samsung Galaxy S2 as well as on my Samsung Galaxy Note a huge battery drain caused to 2 processes : "events/0" and "suspend".
I have already read a lot of threads concerning this problem, but without finding a solution.
I found out, that I only have this bug, when activating my Wifi connection (on both devices). I tried every wifi sleep policy, still getting same results.
So finally, my Android OS battery usage is more than 50%, even more than my display.
Does anyone know a solution for this problem, considering that now I'm sure that it's linked to the wifi activation on both phones. (I did a factory reset and there was no battery drain until I activated Wifi without having any other apps installed, besides of System Panel to monitor....)
Thanks in advance,
Regards,
Ben
Click to expand...
Click to collapse
In the first week that I got the Note, the device is eating up about 10% of batter per hour even when idle. The way that I use this Android phone was no difference than other Android devices I have used. When checked the battery usage, I was stunt to find that the Android OS was using 90% of the battery. Funny is that the screen showed a usage of 20minutes, while the OS showed a usage of almost 3 hours.
Soon after, I decided to do a factory reset due to other reasons. Some how this problem went away and the usage is back to normal. I don't know what happened, but in my case, it solved the issue.
Also I don't use the Note as a phone, but rather as a mini-tablet when I am not at home. So I decided to put the device in Flight mode when it is not in use. In this mode, the device hardly uses any battery. For example when I went to sleep, the battery was at 79%. When I woke up 7 hours later, the battery still shows 79%.
Hope this help!

[David] said:
I guess it's a native issue of your device...
Sent from my Motorola Xoom™ with Tiamat Moray using Tapatalk
Click to expand...
Click to collapse
How about you stop ASS-uming about devices that you don't own. The Galaxy Note is faster, smoother, lighter, and more portible than your Motorola tablet. The only tablet that can match or even outperform the Note is the Galaxy tab so have fun with your soon to be obsolete tablet.
OT: Your issue may be fixed with a factory reset.
Sent from my GT-N7000 using xda premium

Did you try 'Green Power'?
Did you try the app "Green Power". It is pretty good and promising. It will turn off Wifi / 3g while it is not using, it save much power. The paid version just including the 'night' mode.

I'm suddenly facing this issue. Have had no problem with the battery so far. My battery went from 40% to 15% overnight with the screen off and wifi off. :s
Posting screen captures in a bit
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Edit one more time: I found the battery draining really fast just now too: 15%-12% in about 20 minutes.
Clearing the RAM seems to have stopped that though.

I really do think it's the wi-fi sharing/manager processes. I've frozen mine to see if that makes any difference.

It's exactly the same for me, with the suspend and events/0 processes...

Any Solution
k1ckdapro said:
It's exactly the same for me, with the suspend and events/0 processes...
Click to expand...
Click to collapse
I have the same problem with my SGN, it drains the battery once wifi is activated, anyone came up with a solution for that?
---------- Post added at 11:53 AM ---------- Previous post was at 10:57 AM ----------
k1ckdapro said:
It's exactly the same for me, with the suspend and events/0 processes...
Click to expand...
Click to collapse
May I know what firmware u r using? Does it support Arabic?

awsaak said:
I have the same problem with my SGN, it drains the battery once wifi is activated, anyone came up with a solution for that?
---------- Post added at 11:53 AM ---------- Previous post was at 10:57 AM ----------
May I know what firmware u r using? Does it support Arabic?
Click to expand...
Click to collapse
I solved my problem thanks to a tip on this forum. I just did a factory reset for my ohone, and then reflashed the firmware. Its working great now

ok, but what version?
I'd think it's pretty relevant to know what android/fw-version you're all using? I'm on Samsung's original 2.3.6 and have no issues...

LazPL said:
I'd think it's pretty relevant to know what android/fw-version you're all using? I'm on Samsung's original 2.3.6 and have no issues...
Click to expand...
Click to collapse
No, its not. Coze I've upgraded to 2.3.6, and then downgraded to 2.3.5 again, and my problem was still there. Only a factory reset solved my problem.
By the way, u can notice something is wrong by the amount of heat generated while using the wifi, or by how slow pc usb charging could be. It even used to discharge when connected to pc!
The amount of heat was a very strong indication that there was something wrong.

Still battery drain
Hello all,
as of 26 march 2012, I still have something problematic on my samsung galaxy note. I flashed last Open German firmware (LC1) (from samfirmware). The phone is rooted, and as far as I noticed the "suspend" process is still draining the most battery compared with the display ratio. I tried to wipe everything, I downgraded back from LB1 to KKA with Odin, wiped, flashed LC1 and reinstalled onyl paid apps (i.e. not with no advertises). I turned off the Wifi but the susped is still there, eating 63% of resources.
There are not special kernel wakelocks... any ideas on how to go ahead?

I have a standard non rooted rom. I also faced sudden battery drain, but use the following solution -
Folders - keep to the application page not home screens
Backlight - off when inside, 50% if outside or on charge (auto drains faster)
Browser - use one of the low power saving mode
Screen background - live wallpaper eats battery. Use a dark based wallpaper , use much less power
With all the above battery is fine. GB 2.3.6.

I've had the exact same problem as the topic starter. Android system running over 90% in standby and suspend and events/0 running at 100%. I had this problem on stock XXLA6, on Darky V3.3 XXLA6 and Rocket V23 XXLC1 and after a number of full wipes.
My wifi wouldn't turn off in standby and setting different sleep policies didn't do a thing.
I removed the Samsung Sharing app, installed GreenPower and set it to turn off wifi and 3G/data as I don't need sync when it's in standby anyway.
All problems are gone now, after an hour in standby I still have 100% charge and after browsing for 5 minutes it lowered to 99%. Suspend and events/0 no longer run when the phone is in standby, wifi is turned off and Android System is at 4% now.

bioweb said:
I've had the exact same problem as the topic starter. Android system running over 90% in standby and suspend and events/0 running at 100%. I had this problem on stock XXLA6, on Darky V3.3 XXLA6 and Rocket V23 XXLC1 and after a number of full wipes.
My wifi wouldn't turn off in standby and setting different sleep policies didn't do a thing.
I removed the Samsung Sharing app, installed GreenPower and set it to turn off wifi and 3G/data as I don't need sync when it's in standby anyway.
All problems are gone now, after an hour in standby I still have 100% charge and after browsing for 5 minutes it lowered to 99%. Suspend and events/0 no longer run when the phone is in standby, wifi is turned off and Android System is at 4% now.
Click to expand...
Click to collapse
What is the name of the Samsung sharing app you deleted?

Battery dies when showing full on 4.3

Hey guys, I'm on 4.3 and I'm rooted with stock recovery. My phone has been getting really weird battery, being that it will show 90% or higher, and then I will pick up my phone and use it for a minute, at which point it will die completely. I then turn my phone back on, and it shows a completely dead battery (I actually have to plug it in before I can turn it on it's so dead). It will NEVER die on its own, only after I pick it up and use it for a minute.
I've read about this problem online, primarily with 4.2 updates. I haven't seen much about this with 4.3. Actually, most people were talking about it being fixed by 4.2.2 so I'm not sure what to do. Other people were talking about RMA'ing their phone, but I have had a third party replace my screen in the past so I'm not sure they will accept an RMA from me at this point.
This happens every day at least once.
Would appreciate any help.

Did the problem occur after you updated to 4.3? If yes, how did you update? (OTA or flashing Google Stock Image)

Try doing a full cycle of the battery (let it die, recharge till 100%), if not working backup your data and reset to factory with Google's images.

the.fall said:
Did the problem occur after you updated to 4.3? If yes, how did you update? (OTA or flashing Google Stock Image)
Click to expand...
Click to collapse
OTA, and then I rooted with Wug's Nexus Toolkit
EDIT: I had no issues before the 4.3 update though I will say it seems like this didn't happen for about a week or two after the update. It didn't start happening immediately.
AlbertoWayfarer said:
Try doing a full cycle of the battery (let it die, recharge till 100%), if not working backup your data and reset to factory with Google's images.
Click to expand...
Click to collapse
Well it's constantly dying and I definitely recharge it to what it says is 100%. But it seems to get there very fast. Reset to factory with which image? I'm not sure the steps I'd need to take to do that.
Thanks for replying guys.

Update: My phone has been off the charger for about two hours now, yet one app says it's been on battery for three hours, my phone says a different time, the battery settings say I have 91 percent left but the icon in my task bar is totally full and not changing at all.

Well okay, so you didn't do a factory reset after the update, did you? 4.3 was a relatively big update with a lot of changes internally, so a factory reset really is recommended. So I also would do as AlbertoWayfarer said.
So firstly, you have this possibility: Do a factory reset and after this, see if this problem persists. See here:
https://support.google.com/nexus/4/answer/2936226?hl=en-GB
Or secondly, if this doesn't work or if you're under the impression, that something went totally wrong with your update to 4.3, flash the original 4.3 recovery image from Google. You said you used Wug's Toolkit, I saw that it has an option which says "Flash Stock + Unroot". I guess with this tool it's quite easy to flash the image. After you've done that, you have to root your device (if you wanna be rooted again).
Be aware that both of those methods will wipe all of your data, so make a backup of all your data you need again first!

If you are rooted you can backup with TitaniumBackup (backup all system and user apps), then if you want a really clean phone you can copy everything from your sdcard (internal storage) to your pc. Download Google's factory image for mako (4.3 version) and restore to factory with fastboot.
If you copied everything from your sdcard, you can use the flash-all file in the .tar, if not you should flash everything manually.
Inviato dal mio Nexus 4 usando Tapatalk 4

ninjames said:
Hey guys, I'm on 4.3 and I'm rooted with stock recovery. My phone has been getting really weird battery, being that it will show 90% or higher, and then I will pick up my phone and use it for a minute, at which point it will die completely. I then turn my phone back on, and it shows a completely dead battery (I actually have to plug it in before I can turn it on it's so dead). It will NEVER die on its own, only after I pick it up and use it for a minute.
I've read about this problem online, primarily with 4.2 updates. I haven't seen much about this with 4.3. Actually, most people were talking about it being fixed by 4.2.2 so I'm not sure what to do. Other people were talking about RMA'ing their phone, but I have had a third party replace my screen in the past so I'm not sure they will accept an RMA from me at this point.
This happens every day at least once.
Would appreciate any help.
Click to expand...
Click to collapse
I had a similar issue.( however mine was kernel related) Full charge, I picked it up for 10 minutes, and clicked the screen off, it wouldn't turn back on so I did a hard reset, and the battery had lost 70%, in a matter of minutes
Sent from my Nexus 4 TMO @1.728 GHz on Stock 4.3.0

I did a factory reset on my phone, but had to wait a little bit because I also had to add some adhesive to my screen because it was going up (I had a screen replacement a few months ago and I believe the climate change due to my move from Ohio to California affected it). This morning I woke up and my phone said almost full battery, then the screen went black and it was dead. Plugged it in and turned it on and it was at 1% charge.
So I will try to flash stock and see what happens.

Flashed back to stock 4.3 and unrooted using the toolkit. Phone showed 98% battery. Played a YouTube video at full brightness off an on for three or four hours, it only dropped four percent. Eventually, it got down to about 80 percent, then my phone froze and died. Plugged it back in, powered it back on, and the battery is showing zero percent.
I don't know what to do at this point. Please help. Should I go back to 4.2? This didn't start happening until 4.3. Will Google replace my phone if I've used a third party to replace my screen? (the back of the device had a crack in it when the touch screen went out and Google refused to take it due to the crack .. on the back ... that was there when I got my phone)

Would love some help on this, if any. Flashed back to stock 4.3, as stated before, and the issue persists. My phone was showing 74% battery and it randomly died when I went to unlock it. It would not power back on until I plugged it in (It did the Google logo, then Nexus logo, then died). When I plugged it in and turned it on, it said 27%. So I don't know what to do at this point. Flash 4.2? Flash a ROM? Change the kernel? I don't know how to do the kernel stuff and I would need some guidance on flashing the rom.
Google wouldn't take my phone for RMA since the screen has been replaced, right? Please advise.
EDIT: It is worth noting that I did get an OTA update from Google today that said it was upgrading me to 4.3 Jelly Bean and mentioned the Keep note-taking app, despite that I checked before updating and I was already on 4.3. But I installed it anyway and this happened (though it did it still before, just not such drastic and off percentages)

ninjames said:
Would love some help on this, if any. Flashed back to stock 4.3, as stated before, and the issue persists. My phone was showing 74% battery and it randomly died when I went to unlock it. It would not power back on until I plugged it in (It did the Google logo, then Nexus logo, then died). When I plugged it in and turned it on, it said 27%. So I don't know what to do at this point. Flash 4.2? Flash a ROM? Change the kernel? I don't know how to do the kernel stuff and I would need some guidance on flashing the rom.
Google wouldn't take my phone for RMA since the screen has been replaced, right? Please advise.
EDIT: It is worth noting that I did get an OTA update from Google today that said it was upgrading me to 4.3 Jelly Bean and mentioned the Keep note-taking app, despite that I checked before updating and I was already on 4.3. But I installed it anyway and this happened (though it did it still before, just not such drastic and off percentages)
Click to expand...
Click to collapse
Are you getting "red light" at all?

When is the phone supposed to make a red light? I don't believe I have ever seen it. I have read some battery issues with the Nexus 4 where people talk about their phone being totally unresponsive and unavailable to turn on -- that has never occurred with me. Plugging it into the wall always brings it back on. It's like actual battery dying. It's just dying way before it says it's going to and it's making it difficult to gauge how long I'm actually getting.
I did just say screw it, flashed TWRP, put a Rom on and a new kernel just to see what happens. This was like 20 minutes ago. It did seem to charge up really fast after I did that, which might mean the battery is still reporting wrong, though :/

And now I'm pretty certain that the new rom and kernel didn't do anything. Because it charged up super fast and now despite having bluetooth, GPS, and a YouTube video running at full brightness for 45 minutes, it's only dropped 2%, meaning it's definitely reading it wrong. This is so frustrating.
EDIT: Had it go for another ten minutes, picked up my phone and hit the menu button to stop the video, and it died. Now I turned it back on while plugged in and it says 3% - Full for the battery...
EDIT 2: It just went from 3% to 36%. Like there was no middle ground, I actually watched it change from 3% to 36%. And just watched it go from 36% to 40%.
Thank you so much to everyone who has posted thus far and here's to hoping ya'll can help me some more.

How old is your phone? These seem to me to be telltale signs of a bad battery. From what I know about the N4, the battery can be purchased and replaced manually.
Sent from my Nexus 4 using xda app-developers app

ninjames said:
And now I'm pretty certain that the new rom and kernel didn't do anything. Because it charged up super fast and now despite having bluetooth, GPS, and a YouTube video running at full brightness for 45 minutes, it's only dropped 2%, meaning it's definitely reading it wrong. This is so frustrating.
EDIT: Had it go for another ten minutes, picked up my phone and hit the menu button to stop the video, and it died. Now I turned it back on while plugged in and it says 3% - Full for the battery...
EDIT 2: It just went from 3% to 36%. Like there was no middle ground, I actually watched it change from 3% to 36%. And just watched it go from 36% to 40%.
Thank you so much to everyone who has posted thus far and here's to hoping ya'll can help me some more.
Click to expand...
Click to collapse
Mine was jumping like yours except 100 to 30 range and shut off. What I did was opened the phone unscrewed the battery and connected it back. I left the screws out. Took about three days of doing this until I
Found the sweet spot the connector liked. I would plug it in(battery) and push on the ribbon cable towards the connector in the gap between the battery and the housing. I'm going on two weeks now without the spikes. I also (placebo) deleted battery stats a couple of times for s's and giggles. Seeing as how I was never hitting 100% only 99%
I got this phone for next to nothing and had a hell of a time getting it functional. Mic not working red light and battery spikes.
After all the workarounds I'm loving it. Well minus the downgrade of LTE.... I'm on att, but I can live with that.
Sent from my Nexus 4 using xda app-developers app

I'm not sure how comfortable I am opening the phone. Are there any guides to this?

ninjames said:
I'm not sure how comfortable I am opening the phone. Are there any guides to this?
Click to expand...
Click to collapse
Very simple. Google "nexus 4 teardown". I used a light gauge guitar pick instead of the pry tool. I noticed if you do the power button corner last its a lot easier getting the back off.
Sent from my Nexus 4 using xda app-developers app

Thanks for the suggestions, guys. I went ahead and bought a new battery since they were cheap. Can anyone advise as to what the best practices are with this new battery out of the box?
I mean, do I put it in, charge it all the way, then turn it on? Do I put it in, let it discharge, turn it off ... or anything wiping battery stats? As detailed as you can, please. Thanks.

Same thing happened to me 10 minutes ago.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

Battery calibration or replacement needed?

Slow charging on custom ROMs forced me to go back to stock ROM and just before moving I was on AOSP extended and battery calibration issue started after flashing this ROM (I m not blaming anyone). So I tried to calibrate battery (after flashing stock ROM) by completely draining battery and charging it to 100%
After charging for whole night in switch off mode, in morning I found it stuck at 96% and after booting and restarting again, battery suddenly dropped down to 70%
So I tried to calibrate it by Pressing power button for 7-10 sec and connecting turbo charger (with official wire too) after screen off and gone to sleep. And I got a nice battery backup next day i.e. (from 100 to 0%) of 4 hours and 15 mins(with a random shut down during call around 24%). But again when I connected charger after complete drainage, just after 30 mins it showed 80% of charge and finally stuck at 95% and after 30 mins, it decreased to 94%. Now battery is again draining and lost 40% in just 24 mins
Note : battery calibration issue started after flashing ROM after clearing INTERNAL STORAGE with system, cache, data, dalvik. I didn't cleared internal storage before flashing any other ROM, may be this is a cause of messed up battery calibration.
Should I appeal for battery replacement or is there any way to calibrate it perfectly. (Currently I m on locked bootloader)
Sent from my Moto G (4) using Tapatalk

As somebody has told you already, use the root method of calibration, by clearing the battery stats file (or something like). Of course, you need to unlock your bootloader. I doubt flashing a ROM or erasing a partition can cause your battery to go bad.

In addition, which stock ROM did you flash (I recall seeing your posts in the 93-14 thread)? Was that test you performed with a fresh flash, nothing else installed besides the stock apps?
Bear in mind that with Nougat, your battery usage might be quite high after the first boot (either after a clean flash or a wipe cache/Dalvik) as the system rebuilds the caches. That being said, 40 % drainage in 24 minutes is quite unusual.... Your battery experience is sounding like the Nexus battery failures, with the random shutoff and other symptoms (for which it seemed a solution was to RMA under warranty).
Still, I'd like to see what your phone battery is like with a stock ROM and clean flash, no other apps installed, and monitor the drainage.

echo92 said:
In addition, which stock ROM did you flash (I recall seeing your posts in the 93-14 thread)? Was that test you performed with a fresh flash, nothing else installed besides the stock apps?
Bear in mind that with Nougat, your battery usage might be quite high after the first boot (either after a clean flash or a wipe cache/Dalvik) as the system rebuilds the caches. That being said, 40 % drainage in 24 minutes is quite unusual.... Your battery experience is sounding like the Nexus battery failures, with the random shutoff and other symptoms (for which it seemed a solution was to RMA under warranty).
Still, I'd like to see what your phone battery is like with a stock ROM and clean flash, no other apps installed, and monitor the drainage.
Click to expand...
Click to collapse
I flashed naugat stock firmware. And the battery drainage is not after first boot, it's around 10th boot with 4-5 apps installed
I think apps are not responsible.
Should I try to calibrate again or visit service centre?
And what is RMA?
Sent from my Moto G (4) using Tapatalk

zeomal said:
As somebody has told you already, use the root method of calibration, by clearing the battery stats file (or something like). Of course, you need to unlock your bootloader. I doubt flashing a ROM or erasing a partition can cause your battery to go bad.
Click to expand...
Click to collapse
Do I have to root again to calibrate battery?
Sent from my Moto G (4) using Tapatalk

How to calibrate battery in rooted phone

vishalrao8 said:
I flashed naugat stock firmware. And the battery drainage is not after first boot, it's around 10th boot with 4-5 apps installed
I think apps are not responsible.
Should I try to calibrate again or visit service centre?
And what is RMA?
Sent from my Moto G (4) using Tapatalk
Click to expand...
Click to collapse
Okay, that was the fastboot ROM then that you flashed?
Can I request you either wipe your phone back to factory settings (or re-flash the ROM, with wiping everything), reboot and see what your battery life is like, without any other apps besides stock on there please? Can you post battery graphs whilst you're on stock?
RMA = return merchandise authorisation - a form/request that you get to return your phone for a replacement rather than service.
If you wish to follow zeomal's suggestion, yes - you will have to root again.

vishalrao8 said:
Slow charging on custom ROMs forced me to go back to stock ROM and just before moving I was on AOSP extended and battery calibration issue started after flashing this ROM (I m not blaming anyone). So I tried to calibrate battery (after flashing stock ROM) by completely draining battery and charging it to 100%
After charging for whole night in switch off mode, in morning I found it stuck at 96% and after booting and restarting again, battery suddenly dropped down to 70%
So I tried to calibrate it by Pressing power button for 7-10 sec and connecting turbo charger (with official wire too) after screen off and gone to sleep. And I got a nice battery backup next day i.e. (from 100 to 0%) of 4 hours and 15 mins(with a random shut down during call around 24%). But again when I connected charger after complete drainage, just after 30 mins it showed 80% of charge and finally stuck at 95% and after 30 mins, it decreased to 94%. Now battery is again draining and lost 40% in just 24 mins
Note : battery calibration issue started after flashing ROM after clearing INTERNAL STORAGE with system, cache, data, dalvik. I didn't cleared internal storage before flashing any other ROM, may be this is a cause of messed up battery calibration.
Should I appeal for battery replacement or is there any way to calibrate it perfectly. (Currently I m on locked bootloader)
Sent from my Moto G (4) using Tapatalk
Click to expand...
Click to collapse
There is no such thing as battery calibration with newer versions of Android. Once your phone charges to 100% the batterystats.bin file is automatically cleared. Clearing your internal storage should do nothing to the current state of the battery.
This sounds like a defective battery, and I would take it to a Motorola Service Center or purchase a new battery off WitRigs ($20)- although, manually replacing the battery WILL void your warranty.

negusp said:
There is no such thing as battery calibration with newer versions of Android. Once your phone charges to 100% the batterystats.bin file is automatically cleared. Clearing your internal storage should do nothing to the current state of the battery.
This sounds like a defective battery, and I would take it to a Motorola Service Center or purchase a new battery off WitRigs ($20)- although, manually replacing the battery WILL void your warranty.
Click to expand...
Click to collapse
Interesting how we learn new things every day. Could you give me an article/link to this please?

zeomal said:
Interesting how we learn new things every day. Could you give me an article/link to this please?
Click to expand...
Click to collapse
https://forum.xda-developers.com/showthread.php?t=1460553
That's pretty old but still relevant. The battery graphs that you see in Settings>Battery are based on the BatteryStats.bin file. The percentage that you see is based on actual readings from the battery.
Also here: https://www.xda-developers.com/goog...-battery-stats-does-not-improve-battery-life/

echo92 said:
Okay, that was the fastboot ROM then that you flashed?
Can I request you either wipe your phone back to factory settings (or re-flash the ROM, with wiping everything), reboot and see what your battery life is like, without any other apps besides stock on there please? Can you post battery graphs whilst you're on stock?
RMA = return merchandise authorisation - a form/request that you get to return your phone for a replacement rather than service.
If you wish to follow zeomal's suggestion, yes - you will have to root again.
Click to expand...
Click to collapse
I did a factory reset from settings menu and after reset my battery was at 75%. I left it for charging for 2 hours and disconnected. Battery seems little bit better now
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Note : I have no apps except Tapatalk
Sent from my Moto G (4) using Tapatalk

One more
Sent from my Moto G (4) using Tapatalk

vishalrao8 said:
One more
View attachment 4093264View attachment 4093265
Sent from my Moto G (4) using Tapatalk
Click to expand...
Click to collapse
Thanks for that - seems your screen is on a lot, but if that's because you're using your device, then I don't see anything out of the ordinary with regards to your battery. Hopefully there's no random shutdown when receiving a call either.

echo92 said:
Thanks for that - seems your screen is on a lot, but if that's because you're using your device, then I don't see anything out of the ordinary with regards to your battery. Hopefully there's no random shutdown when receiving a call either.
Click to expand...
Click to collapse
No random reboots during call till now
Sent from my Moto G (4) using Tapatalk

I am facing a similar problem in Moto G4 plus from the day I upgraded to Android 7.0.
The battery percentage stuck at 92% or 95% and as soon as I remove the charger it drops to ~60%
I tried switching off holding power key for 7-8 sec as i read that the battery calibration is done after that. It worked for only one time.
All of this problem happens when charging using Turbo charger.
For now i am using normal charger and battery is charging/discharging normally !!

yashprakash44 said:
I am facing a similar problem in Moto G4 plus from the day I upgraded to Android 7.0.
The battery percentage stuck at 92% or 95% and as soon as I remove the charger it drops to ~60%
I tried switching off holding power key for 7-8 sec as i read that the battery calibration is done after that. It worked for only one time.
All of this problem happens when charging using Turbo charger.
For now i am using normal charger and battery is charging/discharging normally !!
Click to expand...
Click to collapse
Does it mean our battery is not defective?
Sent from my Moto G (4) using Tapatalk

vishalrao8 said:
Does it mean our battery is not defective?
Sent from my Moto G (4) using Tapatalk
Click to expand...
Click to collapse
battery is not defective .

yashprakash44 said:
battery is not defective .
Click to expand...
Click to collapse
Should I buy a new charger???
Sent from my Moto G (4) using Tapatalk

vishalrao8 said:
Slow charging on custom ROMs forced me to go back to stock ROM and just before moving I was on AOSP extended and battery calibration issue started after flashing this ROM (I m not blaming anyone). So I tried to calibrate battery (after flashing stock ROM) by completely draining battery and charging it to 100%
After charging for whole night in switch off mode, in morning I found it stuck at 96% and after booting and restarting again, battery suddenly dropped down to 70%
So I tried to calibrate it by Pressing power button for 7-10 sec and connecting turbo charger (with official wire too) after screen off and gone to sleep. And I got a nice battery backup next day i.e. (from 100 to 0%) of 4 hours and 15 mins(with a random shut down during call around 24%). But again when I connected charger after complete drainage, just after 30 mins it showed 80% of charge and finally stuck at 95% and after 30 mins, it decreased to 94%. Now battery is again draining and lost 40% in just 24 mins
Note : battery calibration issue started after flashing ROM after clearing INTERNAL STORAGE with system, cache, data, dalvik. I didn't cleared internal storage before flashing any other ROM, may be this is a cause of messed up battery calibration.
Should I appeal for battery replacement or is there any way to calibrate it perfectly. (Currently I m on locked bootloader)
Sent from my Moto G (4) using Tapatalk
Click to expand...
Click to collapse
Same problem is with me ..
Please help us friends ..

Moto g4 plus battery drain and fast charge!

{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
I bought this phone last year in july and everything was going pretty smoothly until the nougat update. It completely broke my phone.
MY PHONE GETS FULLY CHARGED IN 30-45 MINS(OBVIOUSLY A BUG).
BATTERY DRAIN IS TERRIBLE, FROM 100% TO 15-20 % IN MAXIMUM 1 HOUR.
PHONE GETS SHUT DOWN ALL OF A SUDDEN AND SHOWS WRONG BATTERY PERCENTAGE.
Now let me tell you all what I have tried to fix this and STILL TRYING. -_-
In January 2017 tried methods like factory reset, clear cache partition etc, nothing works.
Now this month I thought of going back to MM to fix the problem l, that too didn't work.( I downgraded using fastboot)
Again updated to nougat and rooted my phone for the first time, and tried some popular custom recovery. Result = No change what so ever.
Tried Elementalx kernel = No results.
Currently using the Lineage OS 14.1 latest version ( heard it's the most stable CM) = no change even after using some battery optimising apps like greenify.
Attaching battery info screenshot for reference.
If anyone found out any fix to this problem then please tell me. I feel like throwing this piece of **** in the garbage.
PS - while writing the question my battery drained almost 10%

Definitely battery or board problem. Go to service center.

strongst said:
Definitely battery or board problem. Go to service center.
Click to expand...
Click to collapse
I have unlocked my bootloader so I don't think they will help me. Correct me if I am wrong.

callmevish said:
I have unlocked my bootloader so I don't think they will help me. Correct me if I am wrong.
Click to expand...
Click to collapse
There's always a chance if it's a hardware failure of the battery. It depends on the service center. You should give it a try.

strongst said:
There's always a chance if it's a hardware failure of the battery. It depends on the service center. You should give it a try.
Click to expand...
Click to collapse
Okay, thanks for the suggestion.

I think I finally found a solution here!
Try this and let me know if it works for you kr not.
Gonna uodate the thread again if everything works out fine after testing a few more days.
https://forum.xda-developers.com/mo...plus-xt1640-43-athene-npj25-93-t3549369/page3

Did you get the battery drain issue resolved? My g4 plus is having a same issue after bought it a year but rarely use it....now after lightly used for about 15 mins, battery is down 10%. Any help is appreciated.

skytell0123 said:
Did you get the battery drain issue resolved? My g4 plus is having a same issue after brought it a year but rarely use it....now after lightly used for about 15 mins, battery is down 10%. Any help is appreciated.
Click to expand...
Click to collapse
What firmware do you have on your device? Do you have any apps besides the standard stock apps (e.g. Google apps) on your device? How strong is your signal?
You may wish to download Better Battery Stats (free version here: https://forum.xda-developers.com/showthread.php?t=1179809 ) or GSAM Battery Monitor to check if there's any apps or processes draining your battery.
Alternatively, as others have suggested, if there's no obvious draining apps, it could be a firmware issue (try a clean, complete firmware flash) or a battery issue.

echo92 said:
What firmware do you have on your device? Do you have any apps besides the standard stock apps (e.g. Google apps) on your device? How strong is your signal?
You may wish to download Better Battery Stats (free version here: https://forum.xda-developers.com/showthread.php?t=1179809 ) or GSAM Battery Monitor to check if there's any apps or processes draining your battery.
Alternatively, as others have suggested, if there's no obvious draining apps, it could be a firmware issue (try a clean, complete firmware flash) or a battery issue.
Click to expand...
Click to collapse
1. What firmware do you have on your device? I have the original unrooted stock rom running Android 7.0 and just checked no update needed.
2. Do you have any apps besides the standard stock apps (e.g. Google apps) on your device? The G4 plus is showing i have 133 app installed and currently running Nova Launcher.
3. How strong is your signal? I am setting it at Airplane mode while turning wifi on just to listen to music and surf the web.
I will download the Better Battery Stats and GSAM Battery Monitor to monitor the battery performance.
Thanks for your reply.

A possible cause is that the connector between battery and motherboard is loose (so that the accu cannot give full power to the motherboard). To fix this, you need to open your phone with a t4 torx screwdriver and tweezers (look for the instruction videos on this on youtube). Disconnect and reconnect the battery cable connector to the motherboard and make sure it is well fixed.
In my case this worked like a charm, I also noticed that next to the battery having normal behavior again, the phone was also much faster. Apparently the processor speed was also tuned down as the battery could not give full power before applying this fix. Saved me 25 / 70 / 230 euros (new battery / new battery with service costs / new phone)

Rinthros said:
A possible cause is that the connector between battery and motherboard is loose (so that the accu cannot give full power to the motherboard). To fix this, you need to open your phone with a t4 torx screwdriver and tweezers (look for the instruction videos on this on youtube). Disconnect and reconnect the battery cable connector to the motherboard and make sure it is well fixed.
In my case this worked like a charm, I also noticed that next to the battery having normal behavior again, the phone was also much faster. Apparently the processor speed was also tuned down as the battery could not give full power before applying this fix. Saved me 25 / 70 / 230 euros (new battery / new battery with service costs / new phone)
Click to expand...
Click to collapse
Thanks a lot Rinthros for your solution. My Moto G4 Plus caused same issue after having overnight charging for two consecutive nights. 2nd day morning I realized that my phone discharged with normal use in only 1 hour. And after get fully charged in only 30 minutes. It felt very sad but then found this solution by Rinthros. I did exactly the same. Opened my phone with t4 for screwdriver and disconnected battery connectors and just reconnected it. It worked for me exactly smooth and amazing. Now after doing so from last 3 days my phone working as it was previously.
Thanks a lot for your solution Rinthros.
:fingers-crossed::good:

I too had the same problem but actually this occurs after updating it to Oreo my battery is not fully charging and after unplugging battery percent remains same got stuck after 1hr of usage device gets shutdown due to low battery all these problem are only in stock Oreo so I downgraded to marshmallow everything works fine after a battery calibration I dont know what was the problem on Oreo guys pls help me to fix it

Thanks a lot Rinthros. My battery was original from 2016 and tired. I decided to buy a new and followed an instruction on the net. After a day or two I noticed rapid drain and quick charge . In the end I had 30 min of use before I needed to charge again. I opened the unit and, for sure, the connection between battery and motherboard was loose. Fixed this and this was very successful. Two hours later, after re-charge, my Moto 4 is still on 94%. My theory is that a floor-drop caused the disconnect. I visited another forum in search for a solution, but nothing helped. I think this solution applies to other versions of Moto. Please Lenovo, listen to Rinthros, this can save you a lot of customers. Moto is a greate phone and deserves better support.

Mi a1 battery draining

My device mi a1 after upgrading to Oreo 8.0 baterry draining so fast I have to charge twice/thrice a day.how to fix this issue?.and I really hate this problem.if I know that when I get Oreo update with this problem I will not update my phone to oreo.if this problem will be still facing with the security patch level of April and May I will downgrade my phone to nougat. I will never trust xiaomi product if I still facing this battery draining problem.

Semioner said:
My device mi a1 after upgrading to Oreo 8.0 baterry draining so fast I have to charge twice/thrice a day.how to fix this issue?.and I really hate this problem.if I know that when I get Oreo update with this problem I will not update my phone to oreo.if this problem will be still facing with the security patch level of April and May I will downgrade my phone to nougat. I will never trust xiaomi product if I still facing this battery draining problem.
Click to expand...
Click to collapse
Battery draining is subjective to personal use. I never heard problems like this with battery. You should have a rough app, or more than one, that is affecting the battery. Try finding that/those apps with a battery monitor app.
You'll get more help if you ask in an appropriate thread in the forums rather then creating a new one on this topic. Just a kind suggestion.

I agree with OP, i bought this phone Feb 15 and im STILL having problems with rapid battery drainage even when not using the phone! updated the phone already how many times and im on the latest build 9.5.9.0. I tried a hard reset last night, erased everything just so i can test if battery will improve, and it sadly didnt, it was still draining the battery quickly even with only stock apps installed. I dont know wtf is the problem but im pretty pissed off as i paid 230 euros for it and i dont think i can return it or exchange it for another phone but ill try if theyre nice, i have 1 yr warranty, i hope they can do something. I mean what good is a phone without a proper battery? I dont want to have to worry about battery life all day everyday like im taking care of some infant..
Not to mention the other bugs im experiencing like:
-issues zooming in on photos in the camera app's photo preview button. i try pinching to zoom but it wont. it acts like i want to swipe left or right.. stupid. double-tap also not work.
-proximity sensor during calls is bugged, screen turns on randomly and does random stuff to annoy you, very nice.
-mobile internet (4G) sometimes doesnt work for reasons unknown... what good is a phone without internet? nothing, reading books i guess... not that guy
anyone else have these problems?
should i start installing custom roms see if that will change anything?
im convinced otherwise that my phone has a hardware defect since how is it possible that others with the same phone and build number say its working flawlessly and others like me still have this daunting battery issues? it doesnt make sense..

Try installing custom ROMs like AOSPExtended, plus, install a custom kernel: MetaPheonix.
My battery lasts for 2 days.
The only issue I face is that the display randomly turns on.
4G Mobile data work.
No issues while zooming in.
No battery drain.
AOSPExtended
MetaPheonix
This doesn't really tell anything, but my battery hasn't dropped a percent since 30 minutes ago:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

About the ROM.
Hello there I'm new here.
Begging developer.
Question is there any rom updates released ?

I have similar, or even worse problem. My Xiaomi Mi A1 loses around 30% battery overnight WHEN THE PHONE IS OFF, it can discharge completely while off. When I bought it it was off. I changed the battery, the problem persists. What the hell is this? I have never experienced battery drain in a switched off smartphone.

varben said:
Battery draining is subjective to personal use. I never heard problems like this with battery. You should have a rough app, or more than one, that is affecting the battery. Try finding that/those apps with a battery monitor app.
You'll get more help if you ask in an appropriate thread in the forums rather then creating a new one on this topic. Just a kind suggestion.
Click to expand...
Click to collapse
The problem with his battery drain isn't due to rough apps.
This is a more frequent issue being observed in Mi A1 and most of the times it's due to a wakelock called "700000.ssusb" and no one seems to have a solution as to how to turn it off.
---------- Post added at 04:48 AM ---------- Previous post was at 04:46 AM ----------
For everyone who has posted issues with battery drain, can you install a battery monitoring app - Gsam or Better battery stats and grant it sufficient privilèges? Once you do that, you'll be able to identify what is causing the battery drain, mostly should be a wakelock, if not we'll get to know what it is.

AkCullen said:
The problem with his battery drain isn't due to rough apps.
This is a more frequent issue being observed in Mi A1 and most of the times it's due to a wakelock called "700000.ssusb" and no one seems to have a solution as to how to turn it off.
---------- Post added at 04:48 AM ---------- Previous post was at 04:46 AM ----------
For everyone who has posted issues with battery drain, can you install a battery monitoring app - Gsam or Better battery stats and grant it sufficient privilèges? Once you do that, you'll be able to identify what is causing the battery drain, mostly should be a wakelock, if not we'll get to know what it is.
Click to expand...
Click to collapse
AkCullen, many thanks for your answer. I can't believe I bought such a crap as Xiaomi A1 with battery draining when the phone is off. I spent so much time on trying to do sth about this already that I doubt I'll ever buy any Xiaomi again. Anyway, many thanks for suggestions! I tried to choose "enable more stats" in Gsam (is this what you are suggesting to do, or you are speaking of other permissions?), but I cannot "grant access with root" (unable to get superuser authority= no root?) and alternatively the app asks me to connect to computer and enable some ADB, which leaves me clueless and it way too much for a non-information-scientist as myself.
Is there a manual way to deal with those wakelocks that a non-specialist user can perform, or I must ask for warranty service? I measured discharge rates and in 5 hours, when off, my Mi A1 loses at least 20-25% of battery charge....

goro2018 said:
AkCullen, many thanks for your answer. I can't believe I bought such a crap as Xiaomi A1 with battery draining when the phone is off. I spent so much time on trying to do sth about this already that I doubt I'll ever buy any Xiaomi again. Anyway, many thanks for suggestions! I tried to choose "enable more stats" in Gsam (is this what you are suggesting to do, or you are speaking of other permissions?), but I cannot "grant access with root" (unable to get superuser authority= no root?) and alternatively the app asks me to connect to computer and enable some ADB, which leaves me clueless and it way too much for a non-information-scientist as myself.
Is there a manual way to deal with those wakelocks that a non-specialist user can perform, or I must ask for warranty service? I measured discharge rates and in 5 hours, when off, my Mi A1 loses at least 20-25% of battery charge....
Click to expand...
Click to collapse
Go with the second option. Connecting to a computer and running a command via adb. It's pretty simple, connect your phone to the computer, enable USB debugging in developer options, download adb in your computer (the simpler version which is about 2mb) and run a command that gsam gives you.
And this is only to narrow down the issue, not to fix it.
I've been dealing with this issue for the past couple of months and it's frustrating. The service center can't help me in here because they don't even understand what the issue is.

I've been having the same issues lately. I don't use my phone much during the day, I'd say screen on time totals 30 minutes. Some days when I plug into my charger at 1:00am I'm sitting at 5% remaining, and other days I could have 55% left. I think it all depends on apps being ran, for sure. I think the improvement happens when I reboot the phone before I take it off the charger in the morning. Also, clearing all the recent apps seems to help a little.
But I do think it comes down to Xiaomi to improve the state of their operating system, either through Android or by implementing something themselves. It's really easy to cause a drainage to happen and difficult to stop it without something extreme like a reboot. I've just made it habit in the mornings to reboot the phone and clear recent apps and rarely have an issue.

My A1 Redmi went on to last 4 hours on after upgrading to Oreo. But I returned to the Nougat and the problem persists. Is it a physical fault?
If it is not a hardware problem, does Nougat solve the problem?