Related
Does anybody know sone work around regarding this? Because its starting to annoy me, have you ever experienced when you are using your device,the battery warning suddenly pops up and says that you must charge already and the battery percentage suddenly changes to 3% eventhough awhile ago there is still 50% left, but when you reboot it chages back to 50%, what could be a possible culprit, this happens a few times to me a day and im tired of rebooting everytimethe warning pos up.
Any advice is appreaciated
Same experience. I posted this a while ago but no solution.
Sent from my GT-P1000 using XDA App
well this isnt an acutal solution but have you tried actually draining your battery down to 3% recently? By doing that you are "calibrating" the battery life sensor and maybe that will cause this issue to occur less frequently?
This happened to me once so I did that and havent had a problem since. Hopefully it works for you!
but how do you power it on if thinks the battery is critical
Somehow if ido a reboot it just goes back to normal..maybesomething is messing up with the battery sensors,i did let it drain but some how it still the same, i had read on a similar thread about a bump charge or something maybe i could try that and lets see from there
on verizon tab SCH-I800 - does the same thing ... mine seems to happen around 33% though. (i thought it was something with the 33% .. since it would drop down to 3%) ..
i think samsung should really push out an update to address some of the glitches in these tabs..
Tried the recalibration thing. Problem still exists.
b3nder said:
on verizon tab SCH-I800 - does the same thing ... mine seems to happen around 33% though. (i thought it was something with the 33% .. since it would drop down to 3%) ..
i think samsung should really push out an update to address some of the glitches in these tabs..
Click to expand...
Click to collapse
thats a similar issue i get,. Yes i tried the recalibration charge also and still having the problem, i did a factory reset also and it did nothing.. Im really desperate for some fixes..
Mine jumps from 15% to 3%. Quite annoying, I assumed that it is because it is poorly calibrated and so it doesn't realise its actually critical until its 15%.
I tried calibrating it by running it until it switches off, and then fully charging. However, that didn't work.
If in reality the battery is at 15%, then its a pretty bad software bug.
Maybe deleting the battery stats solves the problem?
I think its getting worse on mine now after a full charge after i remoce the charge around 2min. It says 3% again what the heck?
Sent from my GT-P1000 using Tapatalk
Tried flashing with another rom but no help. Start to wonder if this is hardware related....
Sent from my GT-P1000 using XDA App
try to flash it with rotohammer rom JHA/JMC it might fix the issue. My problem with GT was battery draining too quickly but after flashing it's much better now.
MasterRy88 said:
well this isnt an acutal solution but have you tried actually draining your battery down to 3% recently? By doing that you are "calibrating" the battery life sensor and maybe that will cause this issue to occur less frequently?
This happened to me once so I did that and havent had a problem since. Hopefully it works for you!
Click to expand...
Click to collapse
This worked for me too, however I had to do it 2 or 3 times. I haven't had any problems since.
I think i sorted it out also by calibrating battery,i removed the battery stats using the root explorer,now im still observing the progress
Brand new sprint tab, only installed the over clock kernel first week i got the.
Today, which would be week 3, i experienced the 35% to 3% drop instantaneousness..... So, im draining the battery, and hopefully doing a full recharge...
nzaw4 said:
Brand new sprint tab, only installed the over clock kernel first week i got the.
Today, which would be week 3, i experienced the 35% to 3% drop instantaneousness..... So, im draining the battery, and hopefully doing a full recharge...
Click to expand...
Click to collapse
I also have a sprint tab and it is three months old. I have not put another rom on it, only rooted it. It also has developed this battery problem recently. It will go from 53 to 3 all of the sudden.
texasreb said:
I also have a sprint tab and it is three months old. I have not put another rom on it, only rooted it. It also has developed this battery problem recently. It will go from 53 to 3 all of the sudden.
Click to expand...
Click to collapse
Not too sure what's the issue but it does sound like a program consuming too much CPU or the battery calibration issue.
Two Active topics discussing the same..... Anyway, I posted in the other topic my answer.
See here.
Beards said:
Two Active topics discussing the same..... Anyway, I posted in the other topic my answer.
See here.
Click to expand...
Click to collapse
gonna try this one out, my tab drained again at 50% hope it works
Since last week I am experiencing a really strange behavior of my battery.
Sometimes my phone (in a random app) just vibrates, the screen goes black and then it reboots. After the reboot I have lost 40-50% battery life. Sometimes the phones isn't even able to complete the reboot because it spontaneously has too little power left. See attached screenshots.
Has anybody had similar problems? Or knows a solution?
About my setup: The problem seems to be not rom or kernel related. It occurs no matter what rom or kernel setting I am using. Currently I am running coool boy's 4.3 GE witch KT's kernel (no OC or UV).
Is it possible that the battery is physically damaged? I have NO IDEA...
Experiencing the same problem. I've flashed back to stock and still experiencing this. Phone randomly turning off, not starting, sudden battery drops. Driving me crazy.
Sent from my GT-I9505 using Tapatalk 2
This looks pretty strange 0.o
Consider buying a new recovery
HITTTTTTT THANNNKKKKSSS
galaxy star duos ****rooted*** xda offical app ) )
I've seen the same sort of graph on my old i9000. You're not gonna like this, but it got worse over time, and eventually my battery wouldn't last more than 5 mins. I thought buying a new battery would help, but it didn't. When I sent it in to Samsung they said they would have to replace the entire motherboard...
I think it's got something to do with the motherboard not being able to correctly sense the battery voltage/whatever/%. The phone reboots automatically because it thinks the battery is flat (even though it isn't).
If you're under warranty I suggest sending it in soon... Hopefully it's not the same as what I had heh.
nwsk said:
I've seen the same sort of graph on my old i9000. You're not gonna like this, but it got worse over time, and eventually my battery wouldn't last more than 5 mins. I thought buying a new battery would help, but it didn't. When I sent it in to Samsung they said they would have to replace the entire motherboard...
I think it's got something to do with the motherboard not being able to correctly sense the battery voltage/whatever/%. The phone reboots automatically because it thinks the battery is flat (even though it isn't).
If you're under warranty I suggest sending it in soon... Hopefully it's not the same as what I had heh.
Click to expand...
Click to collapse
Well *#!$
I'll observate it for the next few days and see if it's getting worse...
If your phone is rebooting as opposed to just powering off, then I suspect it is hardware related (motherboard) as already mentioned.
I do hope I'm wrong though.
Maybe try using it for extended periods while plugged into a charger and see what happens. If it doesn't reboot then it may just be the battery.
Right as OP I'm suffering the same exact problem or there abouts. I've flashed back to stock rom, fully charged to 100% drained to 0% back to 100% yet still phone keeps shutting off randomly and the only way it works properly is with the charger plugged in. It's escalated quite badly with now after a few mins of YouTube turning itself off and not rebooting. I've requested a repair by o2 who I'm in contract with and see what will happen. I've heard crap stories about their repairs before taking it to Samsung.
I9500 owner. Had this exact same problem when using older firmware. After updating to the latest one, never had this issue again. Its been two months now, even more.
Try this. Flash the latest available firmware for you phone, not talking about OTA but the downloadable one from any region (whichever is latest for i9505). I guess it may have something to do with the kernel too.
Edit: wait a minute, why is your battery level going up when it isn't even charging in the second screenshot. Middle of the battery timeline. That's weird. I guess you should send the phone back
Sent from my GT-I9500 using xda premium
Its a hardware issue(motherboard).I hope your under warranty.Best of luck .
i have something strange like that also on my device ..
http://forum.xda-developers.com/showthread.php?t=2409284
Thank you guys :good:
In the last few days the problem occurred more often. But now it is just shutting down (no reboot after vibrate) and after plugging it to the charger and restarting it sometimes I haven't lost any battery. Strange!
I fear there is nothing else to do than turning it in (warranty)
E_Cartman said:
Thank you guys :good:
In the last few days the problem occurred more often. But now it is just shutting down (no reboot after vibrate) and after plugging it to the charger and restarting it sometimes I haven't lost any battery. Strange!
I fear there is nothing else to do than turning it in (warranty)
Click to expand...
Click to collapse
Same problem here. It started three days ago and today I'm barely able to use it... I'm still on warraty and I even have insurance, but it's a major inconvenience anyway.
Mines gone in for repair back to my carrier still no movement despite them having it for 2 days now really should have sent it back to Samsung directly. Will keep you guys posted.
Sent from my Nexus 4 using Tapatalk 2
Will send it in tomorrow. Lady on the hotline told me apparently the motherboard is defect and I'll get a new S4. Exchange, no repair. I'm fine with that...
Sent from my GT-I9100 using Tapatalk 4
That's good to hear, just inconvenience but at least you won't have to pay for it (or have the defect materialize a year later or something)
E_Cartman said:
Since last week I am experiencing a really strange behavior of my battery.
Sometimes my phone (in a random app) just vibrates, the screen goes black and then it reboots. After the reboot I have lost 40-50% battery life. Sometimes the phones isn't even able to complete the reboot because it spontaneously has too little power left. See attached screenshots.
Has anybody had similar problems? Or knows a solution?
About my setup: The problem seems to be not rom or kernel related. It occurs no matter what rom or kernel setting I am using. Currently I am running coool boy's 4.3 GE witch KT's kernel (no OC or UV).
Is it possible that the battery is physically damaged? I have NO IDEA...
Click to expand...
Click to collapse
nikzDHD said:
Experiencing the same problem. I've flashed back to stock and still experiencing this. Phone randomly turning off, not starting, sudden battery drops. Driving me crazy.
Sent from my GT-I9505 using Tapatalk 2
Click to expand...
Click to collapse
nikzDHD said:
Right as OP I'm suffering the same exact problem or there abouts. I've flashed back to stock rom, fully charged to 100% drained to 0% back to 100% yet still phone keeps shutting off randomly and the only way it works properly is with the charger plugged in. It's escalated quite badly with now after a few mins of YouTube turning itself off and not rebooting. I've requested a repair by o2 who I'm in contract with and see what will happen. I've heard crap stories about their repairs before taking it to Samsung.
Click to expand...
Click to collapse
im4eversmart said:
Its a hardware issue(motherboard).I hope your under warranty.Best of luck .
Click to expand...
Click to collapse
Hey
I am new here.
but i was looking for information becuase my s4 9505i has the same problem
shuts of almost everytime i open apps too quickly or stream youtube or some other high usage apps etc.
battery drops up to 50 percent then back 40 percent then to 0 percent, the fact it that the phone never seems to know where the battery is.
by the way my phone is not rooted and i have done the factory reset a few times.
samsung... hmmm.. they seem to be real hard to talk to on the phone, i have had to call them 4 times already about the s4 i ahve had since june, and they just play me off like i am some kind of idiot etc. and deny that there is possibly any reason for random shutdowns, phone freezing, and now this battery/motherboard issue.
next bit is kinda stupid, the phone has a few internal scratches on it from when i ahve stupidly had the phone next to keys and all that. im sure they are going to try and void my warranty and say i have mistreated the phone...
had many phones before, maybe close to 50 and never, never, never have had to ring up a company to try and complain etc.....
any ideas.
I am in Australia,
I am thinking of trying the CONSUMER AFFAIRS kind of threats, but i have to word it the right way...
I have Note 4 SM-910C Unrooted international on stock ROM 5.0.1.
my problem started with battery charging to around 80% then stops or take like 5 hours to reach 100% then when I use the phone battery suddenly drops from 20-30% to zero.
if I remove the battery then reinstall it reads 16-18% but may drop back to zero.
when turned off while charged it charges to 100% normally
It is irrespective of charger/cable i use (2mA).
tried hard reset and battery calibrate (non-root) but no good.
Any help with this problem
aalim said:
I have Note 4 SM-910C Unrooted international on stock ROM 5.0.1.
my problem started with battery charging to around 80% then stops or take like 5 hours to reach 100% then when I use the phone battery suddenly drops from 20-30% to zero.
if I remove the battery then reinstall it reads 16-18% but may drop back to zero.
when turned off while charged it charges to 100% normally
It is irrespective of charger/cable i use (2mA).
tried hard reset and battery calibrate (non-root) but no good.
Any help with this problem
Click to expand...
Click to collapse
Sounds like your battery has gone rogue so you might wanna buy a new battery. A great example why not to buy Note 5 lol.
Maybe it's a bug in your rom build so why don't you try and upgrade from 5.0.1 to 5.1.1.
I have not used stock roms since the s2 days and after using custom roms I have never looked back.
Zionator said:
Sounds like your battery has gone rogue so you might wanna buy a new battery. A great example why not to buy Note 5 lol.
Maybe it's a bug in your rom build so why don't you try and upgrade from 5.0.1 to 5.1.1.
I have not used stock roms since the s2 days and after using custom roms I have never looked back.
Click to expand...
Click to collapse
i have the same problem with my N910F.. at 20% my phone dies.. like today it was 20% dropped to 4% in an instance and then died..
this is happening since upgrading to 5.1.1 (dirty)..
is it possible to fix this with a factory reset ?
Try Battery calibration and battery repair from the store... If it's not doing something, then replace the battery
make sure your battery is fully charged. From dialing interface typing in *#0228# to check battery info and clicked "quick start" at the bottom of the screen, then your battery will drop down quickly, try these steps several times.
inwithyou said:
Try Battery calibration and battery repair from the store... If it's not doing something, then replace the battery
Click to expand...
Click to collapse
any app suggestions ? also i forgot to mention my phone isn't rooted..
p.s. i had a random restart a moment ago.. is this battery related issue ?
thanx.
the same problem N910C.
Any solution?
I have the same problem with Dr.ketan port note 5 rom. I install cm12.1 and bug is gone! Just report
SUNUN said:
the same problem N910C.
Any solution?
Click to expand...
Click to collapse
Yeah, Samsung has a solution. Buy a new phone as they will never update the 1 year old one even though they ****ed it up...
As much as Iove Note family I am more and more pissed with Samsung and eventually will stop buying their ****.... Already done with their watches by the way...
Definitely a degraded battery problem.
I got a new battery and problem now solved.
I have the same problem and already bought a new battery but the issue continues.
(Sorry for my English)
Hello,
I have a problem with battery, it drains normally until it reaches 40 or 30 percent, after that it suddenly start dropping rapidly until it shuts off in just a few minutes and acts like dead. I think this started happening after MM update, I've found several answers online but none of them is from an active Note 4 user but from tech specialist, suggesting it might be both a battery problem or a software problem too. Also, some people state that a new battery solved the problem, but also many of them bought the new OEM battery but the problem still exists even with the new battery.
Does any of the users on xda have the same issue after MM? I don't want to waste money for a new battery if it's not a battery problem. And again, I dont know if and when will Samsung release an update for this kind of bug if its a software thing... I would like to know if I'm alone with this and hear some thoughts on buying a new battery or no?
ljubimci said:
Hello,
I have a problem with battery, it drains normally until it reaches 40 or 30 percent, after that it suddenly start dropping rapidly until it shuts off in just a few minutes and acts like dead. I think this started happening after MM update, I've found several answers online but none of them is from an active Note 4 user but from tech specialist, suggesting it might be both a battery problem or a software problem too. Also, some people state that a new battery solved the problem, but also many of them bought the new OEM battery but the problem still exists even with the new battery.
Does any of the users on xda have the same issue after MM? I don't want to waste money for a new battery if it's not a battery problem. And again, I dont know if and when will Samsung release an update for this kind of bug if its a software thing... I would like to know if I'm alone with this and hear some thoughts on buying a new battery or no?
Click to expand...
Click to collapse
It's your battery!
Your battery has deteriorated to a point that it only hold around 70% of its original capacity.
I have 4 original batteries which 2 of them are new & 2 of them are old, deteriorated ones.
One of them only holds around 70% like yours & one of them holds around 90%.
The new ones.....they works perfectly.
They holds around 99%.
Remember that lithium batteries deteriorates through time whether you use it or not.
Thanks for your opinion.
Once it also happened that my battery level was showing 50% and in the middle of browsing, my display went black, touch keys working and display is completely black. Even after a couple of restarts and cache wipe from recovery it remained black after booting, while the screen was working properly on the boot and showing samsung logos and all. I assumed there's a voltage problem, but I still was not sure is it a defective battery or system not reading the level of it properly. Never happened before with any of my previous Samsungs.
I've got almost same problem as @ljubimci.
The only problem is that I bought new battery (from samsung shop, 100% original not fake) and it dies even faster then my old one
The bigest drops are when i use high demanding aps, especially camera (4k recording) then it can drop from 60-70% to 0 in "0 minutes". This started to happen to me on MM, so i downgraded to LP (5.1.1) Nothing changed... And at the end i've changed my ROM to stock, unrooted 4.4.4 (ANK4). Problem still existing End the last biggest problem of them all is that i've lost somwhere my receipt, so i can't give samsung my battery back ;-(
I know that to some people changing ROM's help, to some new battery help, and it looks like to me only xda can help Is there a possibilty that new battery is damaged, or maybe there are any kind of fixes?
MarcinMilosz13 said:
I've got almost same problem as @ljubimci.
The only problem is that I bought new battery (from samsung shop, 100% original not fake) and it dies even faster then my old one
The bigest drops are when i use high demanding aps, especially camera (4k recording) then it can drop from 60-70% to 0 in "0 minutes". This started to happen to me on MM, so i downgraded to LP (5.1.1) Nothing changed... And at the end i've changed my ROM to stock, unrooted 4.4.4 (ANK4). Problem still existing End the last biggest problem of them all is that i've lost somwhere my receipt, so i can't give samsung my battery back ;-(
I know that to some people changing ROM's help, to some new battery help, and it looks like to me only xda can help Is there a possibilty that new battery is damaged, or maybe there are any kind of fixes?
Click to expand...
Click to collapse
I think that you bought a faulty battery
Hello and Happy New Year to all,
*
I came across an issue with my Note's (N910C) battery today and I would like your opinion on it.
*
A quick background:
*
The phone has never been rooted.
9-10 months ago I downloaded an official firmware (6.0.1) which I flashed via Odin and it began to drain the battery very fast, killing the phone in less than a day.
I got a new battery, but the problem was still there.
Eventually I tried another firmware which worked nicely and consumption returned to normal levels. Since then, I had no problems whatsoever.
Yesterday night I got a notification to update. I had already done another two in the past - if I'm not mistaken - , without noticeable difference.
I did the update overnight and I removed the charging cable in the morning. It seemed that it was a little warmer than usual, but I did not pay attention.
The battery percentage was reducing at the rate of 1% per minute and it died within 2 hours.
I checked battery info, nothing abnormal.
I have two questions:
*
1. Does anyone have similar experience with this model (or other)?
2. If I reinstall the previous firmware, normally the problem should be fixed, right? I mean it started after an official update which AFAIK affects native apps only.
*
Thank you in advance
I have noticed on my Note 4, after upgrading to marshmallow, the battery drained like crazy too. It would drain 10-20% when I use it for 20 mins or so. The battery that I'm using is a 'new' one that I bought just about a year ago although the problem still occurred when it was fairly new.
I'm speculating that there might be some sort of battery or software issue with marshmallow as the original battery that came with the phone also had the same issue. It would drain fairly quickly until one day it just stopped working and would boot loop until I plugged it in to the charger.
Ever since marshmallow, I have never seen my battery get to 15% before switching off completely. Sometimes even 45% lol.
mha93 said:
I have noticed on my Note 4, after upgrading to marshmallow, the battery drained like crazy too. It would drain 10-20% when I use it for 20 mins or so. The battery that I'm using is a 'new' one that I bought just about a year ago although the problem still occurred when it was fairly new.
I'm speculating that there might be some sort of battery or software issue with marshmallow as the original battery that came with the phone also had the same issue. It would drain fairly quickly until one day it just stopped working and would boot loop until I plugged it in to the charger.
Ever since marshmallow, I have never seen my battery get to 15% before switching off completely. Sometimes even 45% lol.
Click to expand...
Click to collapse
I had a faulty N910F and got another (used) one and it's had occasional forced closes at between 15-20%. This worries me that it might go the way of the old one where it developed the issues with it freezing and the frequent reboots....does yours exhibit any other issues?
woldranger said:
I had a faulty N910F and got another (used) one and it's had occasional forced closes at between 15-20%. This worries me that it might go the way of the old one where it developed the issues with it freezing and the frequent reboots....does yours exhibit any other issues?
Click to expand...
Click to collapse
Yes. Unfortunately. Currently, it would just die halfway even when I'm at 50%? That's the highest that I've noticed. So I had to charge it up for a bit maybe to 60% and it would be fine before dying around the 20+ - 40% mark. Previously, the original battery that came with the phone had this weird issue where the battery won't hold any charge even when it's fully charged. Like it will go to a bootloop when I've unplugged it even though it's at 100%. When I bought the new, current battery I noticed that it would still die off at 15-20% and the original battery became bloated a few months later.
Are you using any custom roms? The bootloops and freezing could be related to using some custom roms. I changed from a N7 port to a deodexed stock rom and the frequency of the freezing and reboots just plummeted. Reboots only happening when the battery is close to dying.
mha93 said:
Yes. Unfortunately. Currently, it would just die halfway even when I'm at 50%? That's the highest that I've noticed. So I had to charge it up for a bit maybe to 60% and it would be fine before dying around the 20+ - 40% mark. Previously, the original battery that came with the phone had this weird issue where the battery won't hold any charge even when it's fully charged. Like it will go to a bootloop when I've unplugged it even though it's at 100%. When I bought the new, current battery I noticed that it would still die off at 15-20% and the original battery became bloated a few months later.
Are you using any custom roms? The bootloops and freezing could be related to using some custom roms. I changed from a N7 port to a deodexed stock rom and the frequency of the freezing and reboots just plummeted. Reboots only happening when the battery is close to dying.
Click to expand...
Click to collapse
Ah right, so you had only the reboots, nothing else? That's fair enough.
No, it's nothing at all to do with the ROM. I'm stock but LOTS of people have had the same issue. As it stands, the only way to fix it is to get a new mobo :crying:
woldranger said:
Ah right, so you had only the reboots, nothing else? That's fair enough.
No, it's nothing at all to do with the ROM. I'm stock but LOTS of people have had the same issue. As it stands, the only way to fix it is to get a new mobo :crying:
Click to expand...
Click to collapse
Well besides the usual overheating that's related to our snapdragon CPU, nothing much but mostly battery issues.
Although there is thread that I'm following that promises to fix the 15-20% issue. Checking their method to see if it works or not
https://forum.xda-developers.com/note-4/general/battery-shutdowns-15-20-fix-root-t3513268
leebro83 said:
Hello and Happy New Year to all,
*
I came across an issue with my Note's (N910C) battery today and I would like your opinion on it.
*
A quick background:
*
The phone has never been rooted.
9-10 months ago I downloaded an official firmware (6.0.1) which I flashed via Odin and it began to drain the battery very fast, killing the phone in less than a day.
I got a new battery, but the problem was still there.
Eventually I tried another firmware which worked nicely and consumption returned to normal levels. Since then, I had no problems whatsoever.
Yesterday night I got a notification to update. I had already done another two in the past - if I'm not mistaken - , without noticeable difference.
I did the update overnight and I removed the charging cable in the morning. It seemed that it was a little warmer than usual, but I did not pay attention.
The battery percentage was reducing at the rate of 1% per minute and it died within 2 hours.
I checked battery info, nothing abnormal.
I have two questions:
*
1. Does anyone have similar experience with this model (or other)?
2. If I reinstall the previous firmware, normally the problem should be fixed, right? I mean it started after an official update which AFAIK affects native apps only.
*
Thank you in advance
Click to expand...
Click to collapse
hey can you give me the link of that firmware that improved your battery life
I had a similar problem with fast battery drain - did a factory reset and it's back to normal. Make sure you're using a battery from a reputable source like RavPower (don't think there are any genuine Samsung ones left and Anker stopped making them).
Kinsman-UK said:
I had a similar problem with fast battery drain - did a factory reset and it's back to normal. Make sure you're using a battery from a reputable source like RavPower (don't think there are any genuine Samsung ones left and Anker stopped making them).
Click to expand...
Click to collapse
i have done every thing bought new batteries from different Companies but still my phone dies with in 1.5 to 2 hours please if there is any fix do tell me.
hasanrworld said:
i have done every thing bought new batteries from different Companies but still my phone dies with in 1.5 to 2 hours please if there is any fix do tell me.
Click to expand...
Click to collapse
Try GSAM Battery Monitor:
Free: https://play.google.com/store/apps/details?id=com.gsamlabs.bbm
Pro: https://play.google.com/store/apps/details?id=com.gsamlabs.bbm.pro
Root: https://play.google.com/store/apps/details?id=com.gsamlabs.bbm.rootcompanion
[EDIT: Sorry, Root version is only necessary for KitKat and older devices]
If you're not rooted, you can use the ADB commands to get the enhanced statistics, this is explained in the app. User Guide: http://blogger.gsamlabs.com/2011/11/badass-battery-monitor-users-guide.html
This will help you understand what app or aspect of your device is draining the battery, and also show you when it is using doze, deep sleep etc.