[Q] Nexus 7 (2013) does not turn on - Nexus 7 (2013) Q&A

Once or twice a week when I press the power button, the device doesn't turn on. I then have to hold the power button for several seconds to reboot it. I'm not sure where I read it, but somebody mentioned that it could be related to the auto brightness setting. Unfortunately setting the brightness to a fixed level did not solve this issue. Any other suggestions?
I'm on stock 4.3 (JSS15R)

I'm not trying to be a prick here, this question is just me not knowing all the facts.
When you power the device back up, how much battery does it have left? Is there an app that's draining your battery in the background?
If it's not the battery running out, have you tried a factory reset?

Stealth22 said:
I'm not trying to be a prick here, this question is just me not knowing all the facts.
When you power the device back up, how much battery does it have left? Is there an app that's draining your battery in the background?
If it's not the battery running out, have you tried a factory reset?
Click to expand...
Click to collapse
With 'turn on' I mean getting it out of standby mode. I don't power off the device completely.
The battery percentage is not the problem. It sometimes happens with almost full battery. There doesn't seem to be a draining application.
I haven't tried a factory reset yet. I want to try that if nothing else helps.

pattiman said:
With 'turn on' I mean getting it out of standby mode. I don't power off the device completely.
The battery percentage is not the problem. It sometimes happens with almost full battery. There doesn't seem to be a draining application.
I haven't tried a factory reset yet. I want to try that if nothing else helps.
Click to expand...
Click to collapse
Hmm. To be honest, I'm not sure what it could be. Barring a hardware issue, I would lean towards trying a factory reset.

Related

Barrety Statistics issue

Ok, so I rooted the phone yesterday, and installed a custom boot animation, but that's all I have done. For some reason, Every time I reboot the phone, My battery stats reset, so when i turn the phone off, then back on, my battery usage says "unplugged for 32 seconds" or something similar to that. Any idea why it's reading that I just unplugged the phone???
Also, I have juice defender installed, and all of a sudden it is reading ridiculously high numbers, like it's increased my battery x9.74. It never usually reads higher than x1.74 or so. I don't know whats going on. Any ideas?
The Black Droid said:
Ok, so I rooted the phone yesterday, and installed a custom boot animation, but that's all I have done. For some reason, Every time I reboot the phone, My battery stats reset, so when i turn the phone off, then back on, my battery usage says "unplugged for 32 seconds" or something similar to that. Any idea why it's reading that I just unplugged the phone??
Click to expand...
Click to collapse
It will say that regardless whether you unplugged the phone from the charger or if you reboot the phone. It is clearing your battery "statistics" because you shut off the phone...
g00s3y said:
It will say that regardless whether you unplugged the phone from the charger or if you reboot the phone. It is clearing your battery "statistics" because you shut off the phone...
Click to expand...
Click to collapse
Thanks for clearing that up. I was unaware it reset every time the phone reboots
The Black Droid said:
Thanks for clearing that up. I was unaware it reset every time the phone reboots
Click to expand...
Click to collapse
ah yeah, but it's not that big of a deal.
It's on a different level than the battery stats that you wipe in Recovery, but it can be a bit of a pain if you're closely looking at your battery level and you can't know for sure how long since you actually charged it.

BATTERY.

Hello, I would like to know what has happened to my galaxy w.
One day I wanted to take a picture in dark, I pressed the shot button on the screen, the flash appeared, and the phone turned of immediately.
When I turn it on, it shows that my battery % is critical.
That's the start only.
After that, I reinstalled my phone, as I tought, that should be the problem maker- but it wasn't.
THe problem persisted trough reinstall.
Now my phone turns off after a lil time, as an example when I use Youtube and watch some videos- it just turns off after some few seconds.
And when I turn it on, it shows again 50% battery(befoure 60%)
I think, the voltage increasing, which is caused by an app, or hardware makes the phone to use more power, and when it uses, phone thinks, that battery is empty and it just turns off.
After a while I'm able to successfully turn it on.
Any idea, what can cause this problem?
I've surfed the net, and found, that the flash could be the one, who caused this mess.
No other reasons, in my opinion, because in my observations it doesn't show that it's the ROM fault but hardware.
Maybe the flash uses alot power, and the battery is kinda weak(I've been using phone for almost a year).
Everyday usage- SMS,call, some games and browse the internet.
Thanks in advance, hope to see some advice.
Madzix said:
Any idea, what can cause this problem?
Click to expand...
Click to collapse
Have you tried to change the battery? I have had this situation, which has helped it is replacing the battery.
Ruxa1987 said:
Have you tried to change the battery? I have had this situation, which has helped it is replacing the battery.
Click to expand...
Click to collapse
No, I haven't, but it seems there's no other way out.
So, I'll try and report.

The cause of Strange battery behavior + Random Restarts.

Hi, I just bought a used galaxy tab s 10.5 and the battery jump from 20 to 99% in 20 minutes when charging . I started using it at 100% and it shuted down for low battery in 30minutes and I power it on again a it said 75%. How do you thinks is going on with the tablet? Thanks and sorry for my bad english.
Do you know if it's rooted and has a custom recovery. Clear cache and fix permissions in recovery mode
No root
It is not rooted and it have stock recovery. Is there an app to reset battery stats?
MLopez14 said:
It is not rooted and it have stock recovery. Is there an app to reset battery stats?
Click to expand...
Click to collapse
try booting stock recovery and do a factory reset.if that don't work than look into rooting it and TWRP so you'll have the option to flash something else or clear the cache and fix permissions
done
I did the factory reset and the permissions fix thrught TWRP but the battery still crazy. What more can I do?
I got the tablet down to 0% battery, to the point that it wouldn't turn on.
Took off the back cover using prying tools and then disconnected the battery, power cycled thrice by holding and releasing power button and then reconnected the battery and let it charge overnight to 100% and now battery life is amazing, don't have those drastic drops anymore.
There are no warranty stickers torn etc involved with doing this so you don't have to worry about voiding it. Just take your time and start at the microsd slot, open the hatch and work your way around slowly. Its difficult first time around because there is adhesive glue as well as clips holding it down. But still very doable without damaging anything.
Here is a link to a battery calibrator for root users
https://play.google.com/store/apps/details?id=com.vitula.batterycalibration
There are other calibration apps
Definitely other options before taking it apart [emoji111]
..
I tried with the battery calibration app and nothing. I leave you a screenshot , thats is WHITHOUT any charge, when it shuted out I just turn it on again. What is indexservice?
OK after ready the links below I believe a debloated ROM could solve your problem
https://www.google.com/search?q=wha...google&sourceid=chrome-mobile&espv=1&ie=UTF-8
List of Roms
[emoji652]
http://forum.xda-developers.com/galaxy-tab-s/development
I will try a debloated rom because son process called index service is draining the 60% of my battery, but is rare that the tablet shuted down and when I tried to turn in on and it shuted down immediately for low battery, but and enter in recovery mode and leave it on with max brightness and it stay awake for 4 hours!! Even when twrp said that is has only 1%.
MLopez14 said:
I will try a debloated rom because son process called index service is draining the 60% of my battery, but is rare that the tablet shuted down and when I tried to turn in on and it shuted down immediately for low battery, but and enter in recovery mode and leave it on with max brightness and it stay awake for 4 hours!! Even when twrp said that is has only 1%.
Click to expand...
Click to collapse
Post back to let us know it is after a ROM flash
Can you post a full screenshot of your battery settings. You just posted the graph. Not sure about the index service, but knox drains battery too.
Had the same issue crop up on mine. Did the the battery 0% drain then recharge a few times. And factory format. Now it just randomly keeps restarting (even when on charge now). Called Samsung and they have sent a pack to post it to them to sort I hope.
Now with the debloated rom the crazy battery drops have stop but I'm having random restarts. What's is happening now?
I know it's a lot of work and getting frustrating but let's try Odin back to stock .
http://forum.xda-developers.com/showthread.php?t=2800372
Let's try back to stock. Thanks a lot for taking time to help me.
MLopez14 said:
Let's try back to stock. Thanks a lot for taking time to help me.
Click to expand...
Click to collapse
I'm on here all the time and when I get my devices the way I want them I just browse around trying to help with what I can .no problem and your welcome
...
Now with stock rom I still having random restarts and battery drops. I dont know what more to do and I dont have warranty.
I leave it all night on plugged in the charger and it didn't restart but when I started using it, it freezes up and restart.
Now it sounds like a kernel issue .I really dislike that cortex chip to

How do I factory reset on Wear 6.0?

Used to be on the settings menu. I no longer have restart and I no longer have factory reset. Where have these moved to?
Strangely, they have moved it to Settings-Unpair with phone...
galaxys said:
Strangely, they have moved it to Settings-Unpair with phone...
Click to expand...
Click to collapse
Wow. Why does this OS seem very "1.0?"
agentfazexx said:
Used to be on the settings menu. I no longer have restart and I no longer have factory reset. Where have these moved to?
Click to expand...
Click to collapse
Yeah, they took out Restart for some reason, and Factory Reset is now "Unpair from phone."
Guys, my watch when i do unpair its not reseting no idea why, it turs off, do you have to have any percentage minimum to do a reset?
aguiamaster said:
Guys, my watch when i do unpair its not reseting no idea why, it turs off, do you have to have any percentage minimum to do a reset?
Click to expand...
Click to collapse
Yes, there is a minimum battery required before it will do a reset. Cant remember what it is, maybe 50% or higher.
Sorry, a bit slow in reply
So, to try and fix my 1 hour battery life from 100% to 0%, I am trying to reset this...yet again. When I go to do this as per the instructions in this thread, the watch just reboots and doesn't factory reset. Suggestions? Or is this thing trash now?
agentfazexx said:
So, to try and fix my 1 hour battery life from 100% to 0%, I am trying to reset this...yet again. When I go to do this as per the instructions in this thread, the watch just reboots and doesn't factory reset. Suggestions? Or is this thing trash now?
Click to expand...
Click to collapse
Needs to be nearly fully charged to reset. Try fully charging it and do the reset while on the charger. You can press and hold the button to bring up settings screen while on the charger.
Lol it drains at a rate of several percent per minute. Finally got it to reset after a third try, still does the same battery drain stuff. Throwing it in the trash as it simply does not work anymore. I will revisit Android Wear when it has matured.
agentfazexx said:
Lol it drains at a rate of several percent per minute. Finally got it to reset after a third try, still does the same battery drain stuff. Throwing it in the trash as it simply does not work anymore. I will revisit Android Wear when it has matured.
Click to expand...
Click to collapse
Dont throw it away, give it to someone on here to modify. If its stuck down to a small qi charger, it could be used as a notifications device in a car or motorbike for example.
Well, if anyone wants to buy it, PM me.

Note 2 keeps shutting itself

Hello, so I have one a bit strange problem with my Galaxy Note II. The problem is that the phone shuts down by itself randomly. You can't do anything on it unless you restart it by long pressing power button or pull out the battery. The interesting part is that if I have notification I havn't checked my LED keeps blinking even in that "power off" state. So I don't think its actually shutting down. Can anyone relate and help me what is the reason my phone is doing this? I forget to mention I noticed some battery drops in the default battery monitor when this "shut downs" occur. Can it be battery related? Also I'm running stock Android 4.4.2 and no root or what so ever.
podmatrix said:
Hello, so I have one a bit strange problem with my Galaxy Note II. The problem is that the phone shuts down by itself randomly. You can't do anything on it unless you restart it by long pressing power button or pull out the battery. The interesting part is that if I have notification I havn't checked my LED keeps blinking even in that "power off" state. So I don't think its actually shutting down. Can anyone relate and help me what is the reason my phone is doing this? I forget to mention I noticed some battery drops in the default battery monitor when this "shut downs" occur. Can it be battery related? Also I'm running stock Android 4.4.2 and no root or what so ever.
Click to expand...
Click to collapse
try with other battery or go to a gsm store and say "i need to buy a battery ?" if doesn't work , try to flash the rom again. or try with a multimeter a small bulb and you gone see if drops down

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