[Q] charging stays at 384mhz - Nexus 4 Q&A, Help & Troubleshooting

my phone does not go into deep sleep mode while charging and only stays at 384mhz. and when i unplug and use it for few hours and then charge again, it stays at 1512mhz during charging and becomes noticeably warm. does anyone know why and can help me with this? thanks in advance.

hakim7489 said:
my phone does not go into deep sleep mode while charging and only stays at 384mhz. and when i unplug and use it for few hours and then charge again, it stays at 1512mhz during charging and becomes noticeably warm. does anyone know why and can help me with this? thanks in advance.
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It's not supposed to go into deep sleep while charging!
Sent from my Nexus 4 using Tapatalk

BigDig said:
It's not supposed to go into deep sleep while charging!
Sent from my Nexus 4 using Tapatalk
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why? my phone used to stay in deep sleep mode while charging until few weeks back. i dont remember exactly what i did that may have caused this problem.

hakim7489 said:
why? my phone used to stay in deep sleep mode while charging until few weeks back. i dont remember exactly what i did that may have caused this problem.
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I think it not supposed to be im deep sleep, because the system must manage the charging process. Even when you turn off your phone, and you plug the charger, the phone wakes up to manage the charging.
sent from nexus4 pa4beta2

Yea OP, no big deal in your phone staying at the 384mhz step. However the other problem may be cause for concern. Are you using a custom kernel (or ROM, which may have a customized kernel)? If the phone is stock, are you touching the screen all the while noticing this? How are you monitoring this behavior?
Sorry for so many questions but there are many things that could potentially be going wrong.

Related

Phone over-heat!! Help please!

I was charging my phone last night, and in the morning my phone was extremely hot. I've never felt anything as hot before with my phone. I had to shutdown the phone and pull out the battery fast. Seriously, I thought my phone would explode. Did anyone else experience the same problem??
Sent from my HTC bravo using XDA App
it happens, are you using the OEM battery and charger?
mofoahh said:
it happens, are you using the OEM battery and charger?
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yes I am. I've also noticed that my phone charges really fast too, maybe 2 or 3 times faster than its normal rate?
Any ideas to prevent it from overheating while charging??
wrong place to post, u should have posted it here or here
Do you have an app called "SETCPU"? if not some android builds or older builds don't have control over the CPU and leaves it running at 998MHz even in sleep mode when it should be 245MHz in sleep mode. Get the app in this fourms. It will even allow you to overclock up to 1190MHz for extra proformance but may kill your battery faster. I once had this problem and sloved it with SETCPU. Good Luck.
you can also set a profile for your CPU to max out at say 600mhz if it goes above 40 degrees c or what have you.
Or maybe his charger is faulty...

Do you turn off your Nexus 7 at night?

I was wondering if people shut down their tablet at night? I always do, is anything wrong with this?
Thanks.
Sent from my Nexus 7 using Tapatalk 2
I don't, and no of course there's nothing wrong with that! Why would there be? (;
Sent from my Nexus 7 using xda app-developers app
I just let it automatically go into Airplane mode during my sleep hours, the free Battery Widget Reborn app can do this. Only about 3-4% overnight drain.
newcdn said:
I was wondering if people shut down their tablet at night? I always do, is anything wrong with this?
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The only time I power down my N7 or smartphones is when I'm doing something to the system that needs a clean boot.
You're weird. :silly:
we have 5 android devices in our home..
NONE of them have ever been left off for longer then it takes to reboot when flashing .. My iconia can go weeks Sometimes months without being shut down or rebooted..
but you can turn it off without any issues .. NOTHING Weird about that.. Giggles
No need to turn these off. Tablets are designed to be "always ready" devices anyway.
I turn mine off at night as well.
We can form a support group to keep the "I never turn my N7 off" crowd from bullying us into changing our ways. :highfive:
newcdn said:
I was wondering if people shut down their tablet at night? I always do, is anything wrong with this?
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Every time you shut down your Nexus 7 an innocent puppy dies!
I leave mine on over-night. In sleep mode it'll only lose a few percent battery life over-night, so it's not really an issue for me.
I want to preserve battery as much as possible, so off it goes.
chuckf1 said:
I turn mine off at night as well.
We can form a support group to keep the "I never turn my N7 off" crowd from bullying us into changing our ways. :highfive:
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Oh my, not a tarhole in this forum. :nofive:
Sent from my Nexus 7 using xda app-developers app
I leave mine on charging overnight so it's ready to go first thing in the morning.
Sent from my Nexus 7 using Tapatalk 2
I turn mine off because I always find that a fresh boot every day makes stuff run nicer, its way more noticeable on my aging phone, but I'm sure it happens to some extent on even this beast
Sent from my HTC Vision using xda app-developers app
newcdn said:
I was wondering if people shut down their tablet at night? I always do, is anything wrong with this?
Thanks.
Sent from my Nexus 7 using Tapatalk 2
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I would say turning it off every night is a bad thing, it's built to be on all the time, android is built to put a device in to a deep sleep mode when you're not using it. The cpu is far better off going to sleep then being powered on and off every day..... Just make sure you turn off wifi or change the setting to "Never keep wifi on during sleep" and uncheck "Notify me when an open network is available"
I turn mine off at night
I prefer to shut down the system every now and again. A fresh boot can make the device quicker.
Its also good to, every once in a while, clear all the system caches that have been created.
Why would you think that there is anything wrong with shutting down the tablet?
I switch mine off most night but it sleeps on other nights as it only uses minimal battery while sleeping, just feel bad for leaving on when I wouldn't my laptop or other computer.
Has anyone left there tablet on the dark clock screen (sort of like an illuminated alarm clock mode) overnight, wondered what battery use was like? Was thinking about trying it to use as an alarm clock.
snipe2nite said:
I would say turning it off every night is a bad thing, it's built to be on all the time, android is built to put a device in to a deep sleep mode when you're not using it. The cpu is far better off going to sleep then being powered on and off every day..... Just make sure you turn off wifi or change the setting to "Never keep wifi on during sleep" and uncheck "Notify me when an open network is available"
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This ^
Hardware wear is a real phenomenon. You put needless strain on the CPU and all other major components including SD and RAM by powering it on and off regularly.
I usually charge them overnight
No, leave mine on (sleeping) all night, every other night, or, thrid night, I leave it charging. Can't really see any advantage to shutting it down completely every night, the amount of power saved, would be minimul I think ....................
I turn off wifi with home screen toggle, then just shut my auto-off case. I get up in the AM and have lost 2-3%. That ain't going to effect the next time I need to charge by more than 30 minutes. I just hate waiting for the reboot. I reboot only when I get a glitch, maybe every other week.

[Q] Battery problems (phone won't turn on or charge)

So about a week or two ago my phone randomly shut itself off. I'm not sure exactly what happened but I just locked it and slid it in my pocket and an hour or so later I checked it and it wouldn't turn on, yet I could feel the gpu/processor getting extremely hot after a minute or so of failed attempts. Also the trackpad would flash red, which I had never noticed before. Prior to this I had been noticing my battery was draining quicker.
So when I try to charge it will charge itself for approximately a minute or so and then the orange LED will go out, again the processor/gpu gets very hot. After about an hour if I come back the phone will feel cold again as if It had been off and the phone won't turn on. I was able to buy a new battery today, because I read it could be related to a dead battery. This new battery boots to the familiar HTC mytouch4g intro (which is good, considering the old battery doesn't even power on), but then will shut off immediately after that or occasionally just get stuck at that screen. I can boot into recovery but then it says low battery voltage. I tried to do a factory reset but it just takes me back to the bootscreen again and shuts off.
I'm not sure what to do, as I've bricked a previous phone before and this doesn't really seem similar. I'm thinking about leaving the phone on charge, even though the orange LED is off with the hopes that it will charge. Anyone else have similar experience to this?
You tried different chargers?
estallings15 said:
You tried different chargers?
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Yeah, like 4 or 5 different mini usb's.
Can you get into the bootloader?
estallings15 said:
Can you get into the bootloader?
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Yes, by holding down on the volume and the power button right? Almost every option leads back to the phone rebooting.
greeny996 said:
Yes, by holding down on the volume and the power button right? Almost every option leads back to the phone rebooting.
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Try installing PD15IMG.zip.
estallings15 said:
Try installing PD15IMG.zip.
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Sorry about the long response time. Unfortunately now my phone will not turn on with either battery, so I couldn't flash the img. I think it could be possible that my phone is not actually charging the battery and both of them have died. I'm not entirely sure, I'm going to charge it overnight and hope for the best.
greeny996 said:
Sorry about the long response time. Unfortunately now my phone will not turn on with either battery, so I couldn't flash the img. I think it could be possible that my phone is not actually charging the battery and both of them have died. I'm not entirely sure, I'm going to charge it overnight and hope for the best.
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Perhaps your USB port is broken
Sent from my GT-I9300 using xda premium
bas3balman said:
Perhaps your USB port is broken
Sent from my GT-I9300 using xda premium
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I doubt it, my phone will charge off the USB for a minute or so when I plug it in.

[Q] Screen Turns On Randomly Without Touching Phone

When I leave the Nexus 4 on a flat surface with nothing around it, it will randomly turn the screen on, wait the 30 second timer, then turn back off.
I did just install 4.2.2, but I hadn't used it enough before to say if it only started since then.
I'm currently unrooted, though unlocked the bootloader when I first got it so I do plan to root soon, would flashing a custom kernel like franco kernel possibly fix this? Or would this be a problem in the rom or a third party app?
In BetterBatteryStats I saw 2 Kernel Wakelocks that seemed to have a high ammount of wakes.
(Screenshots Attached)
And here's the BetterBatteryStats Dump File: https://www.dropbox.com/s/dbc2vn3littc0fp/BetterBatteryStats-2013-02-21_054751350.txt
Any help would be highly appreciated, thanks.
Possibly a third party app.
Sent from my Nexus 7 using Tapatalk HD
Was gonna say that I'm having the same issue, but mine only lights up when I charge my phone..
Sfkn2 said:
Was gonna say that I'm having the same issue, but mine only lights up when I charge my phone..
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That's normal bro. Mine does the same and so does every other phone I had.
Sent from my Nexus 7 using Tapatalk HD
scream4cheese said:
That's normal bro. Mine does the same and so does every other phone I had.
Sent from my Nexus 7 using Tapatalk HD
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Err I meant like, it keeps turning the screen on and off - like if the charger is disconnecting itself.
Sfkn2 said:
Err I meant like, it keeps turning the screen on and off - like if the charger is disconnecting itself.
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Sounds almost like the charger has a short or something.
jsilvermist said:
Sounds almost like the charger has a short or something.
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It does that with all sorts of different cables and chargers. Think I might have a loose USB port?
Maybe it's linked to the Daydream feature?
Sfkn2 said:
It does that with all sorts of different cables and chargers. Think I might have a loose USB port?
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Not sure, guess it's possible, but even if it is lose I wouldn't expect it to effect it once it starts unless it gets bumped.
Also, what is the temp of the battery when charging? Not sure if it's true but I've heard that if the battery is over 40c it won't charge properly.
If you want, here's a really nice widget with temp on it: https://play.google.com/store/apps/details?id=ccc71.bmw
I would just be careful with anything to void your warranty until you figure out whats causing the problem, as I've heard a lot of stories about bad batteries, and shorts in usb causing the red light bug (For lack of a better name).
jsilvermist said:
Not sure, guess it's possible, but even if it is lose I wouldn't expect it to effect it once it starts unless it gets bumped.
Also, what is the temp of the battery when charging? Not sure if it's true but I've heard that if the battery is over 40c it won't charge properly.
If you want, here's a really nice widget with temp on it: https://play.google.com/store/apps/details?id=ccc71.bmw
I would just be careful with anything to void your warranty until you figure out whats causing the problem, as I've heard a lot of stories about bad batteries, and shorts in usb causing the red light bug (For lack of a better name).
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Thanks for the link. I actually looked through the 'must have apps for the N4' thread under themes and apps, and Goku80 had posted a link to a battery meter that I just downloaded and installed moments ago. I have yet to see what the charge temp is, but I will report back tonight. Idle temp is around 25*c from what I've noticed just now.
The only thing I've noticed with temps so far is when I have my phone pulled in and I'm watching something on the phone. The phone gets really hot, and the system starts to lag badly. I would assume this is a fail-safe for the battery to not overheat by downclocking itself, but this is only a theory.
As for the red light bug, I saw my phone drop from 28% to 4% instantly out of nowhere yesterday, with no warnings. I immediately pulled the phone in, and watched the battery meter jump to 30%. According to the red light threads, I think it's a software issue with the phone shutting down completely when it thinks it's out of battery to prevent damage. Hopefully we'll never run into that issue ourselves.

S4 randomly shuts off

Recently, my S4 has been shutting of randomly. I got a new battery recently since the other one didn't work well, yet my phone is shutting off at around 50% of battery.
It's always around 50%?
Could be you somehow got another bad battery.
Pwnycorn said:
It's always around 50%?
Could be you somehow got another bad battery.
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When I don't use it much it's around 50%
Sent from my SPH-L720 using Tapatalk
AlexS08 said:
When I don't use it much it's around 50%
Sent from my SPH-L720 using Tapatalk
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*15%
Sent from my SPH-L720 using Tapatalk
Can you turn it back on after it shuts down or it refuses to turn on?
And if it does turn on, how much percentage is left?
I also have this problem! It is shutting down because of the heat, then the percentage floates between 08-20( depends on how much battery i`ve got before)
Same problem
Rhoban said:
Can you turn it back on after it shuts down or it refuses to turn on?
And if it does turn on, how much percentage is left?
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Hi am having the same problem Did you managed to fix it. it doesn't turn off no matter how hot it gets if its plugged in (charging) sometimes its not the heat tried different ROM same problem Samsung s4 19505
nsikak said:
Hi am having the same problem Did you managed to fix it. it doesn't turn off no matter how hot it gets if its plugged in (charging) sometimes its not the heat tried different ROM same problem Samsung s4 19505
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Hello, only two causes for this. Battery not calibrated or battery discharging too fast causing overheat, phone shuts down to prevent damage. If calibration does not work get a new battery.
I had a similar problem, it was the power button that was stuck, it's a bit common problem.
cooltt said:
Hello, only two causes for this. Battery not calibrated or battery discharging too fast causing overheat, phone shuts down to prevent damage. If calibration does not work get a new battery.
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Thanks for replying.
I think its from the overheat problem but how does one calibrates their battery. Thanks

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