[Q] Charging and Performance - Acer Iconia A500

When charging, my A500 is almost unusable due to laggy performance. Unplug the charging cable and bingo, everything returns to normal performance. Anyone else having this phenomena?

jyams said:
When charging, my A500 is almost unusable due to laggy performance. Unplug the charging cable and bingo, everything returns to normal performance. Anyone else having this phenomena?
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That's odd
Do you have some custom ROM installed or some sort of power-saving apps going? I am on stock ROM 3.1 and no kinds of power-saving applications running and I'm not seeing the kind of performance drop as you mention.
Maybe you should try installing CWM, doing full backup and then doing totally complete wipe of the tablet and see if the problem persists? If it doesn't then it's something in your particular installation that's wrong.

dirty power?
anything touch pad or screen related is absolutely useless plugged in at my work

I doubt it is dirty power. You're not gonna see it at the 12 V level.

cd85233 said:
I doubt it is dirty power. You're not gonna see it at the 12 V level.
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Click to collapse
I have, but only in the form of oscillating noise on the headphone jack of a laptop...but hey...makes me think it COULD happen....

Related

[Q]Weird behavior ...Freezing

Hi all
My HD2 with android CM7.2 freezes weirdly
It seems to freeze when processor is charged (playing video, game...)
Tried 3 differents Radio ROM without success (erasing dalvik cache)
Any idea?
Maybe low available ram? Too many widgets taking up ram space? Does it freeze on all games and videos or just high end games or large videos?
It seems to happen when the phone is warm on the backside
using GPS freezes my HD2 too
Dad57 said:
It seems to happen when the phone is warm on the backside
using GPS freezes my HD2 too
Click to expand...
Click to collapse
What is your over clock CPU value set to? Mine reaches temperatures of 117 and has no problems.
Sent from my GT-I9100 using Tapatalk
Mine is not overclocked.
Dad57 said:
Mine is not overclocked.
Click to expand...
Click to collapse
Are you under volted at all?
This might be a faulty motherboard with overheating CPU. You might want to try another ROM to be sure, but if it's it, you can say goodbye to your friend
Thx for your help
Tried 3 different ROMS with the same end.
But battery pins seems not normal especially the middle one.
Dad57 said:
Thx for your help
Tried 3 different ROMS with the same end.
But battery pins seems not normal especially the middle one.
Click to expand...
Click to collapse
Are you able to bend them back into shape? I don't think it's to do with the battery pins though, these would cause sudden reboots rather than freezes.
How is your battery life? You could just have a faulty battery where its not able to supply the currect voltage to the motherboard causeing it to freeze. But also check what your temperatures are, as i said above i go up to 117 farenheit when playing graphic intensive games. but i dont freeze lol. So it might be a bad mobo or a bad battery, thats where i would diagnose it to.
it seems to happen when charging
Possible?
Hi all,
Yesterday, when charging my phone using car 12V charger, my HD2 was getting so warm that it freezes immediately.
Weird problem that doesn't happen with my home charger

[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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Click to collapse
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
Click to expand...
Click to collapse
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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Click to collapse
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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Click to collapse
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?
Click to expand...
Click to collapse
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).
Click to expand...
Click to collapse
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.

Battery Drain while Charging, tried almost everything, need help!

Hi Guys,
Been following XDA for a long time but never had to post anything as everything had already had an answer to my question.
I know there are a lot of threads about battery drain but for some reason, everything I have tried has seemed to help minimally.
Here's the rundown.
I have a Galaxy S5 G900I running G900F custom rom, Resurrection Remix 5.6.7 Marshmallow.
Previously I was running the lollipop version of Resurrection Remix and battery was fine.
The phone is over a year old, but I have tested the battery with another S5 my wife has and it is perfectly fine. It charges fairly quick when the power is off on the phone and still fast enough while it's in use. Even if I am to open up a game on my wife's phone with my battery or hers, the battery continues to charge slowly while in use.
On my phone however, switched with both batteries, the drain is astronomical. I tested playing a game and I would lose practically 1% of battery per minute while in game.
What I have done so far is, installed Xposed, I have Amplify running following various guides which has slowed down the drain of my battery, I have installed Greenify which has also helped. I've turned off the scanning of wifi and bluetooth in locations. I have tried going back to stock rom which does help but it doesn't help me figure out the issue I want to fix.
I have tried switching power points in the house, changing usb cables, changing chargers, all of which do not help my phone with either battery, but on my wives it is fine.
I have also set CPU profiles in Rom Toolbox to lower CPU usage in idle, lower than 15% battery, while on charge. As of today, even while using the phone, I have limited the max CPU usage.
Prior to this latest updated Rom with Marshmallow, I could use my phone and have it plugged into my USB 3 on my PC and it would charge while in use unless playing a game or using a high demanding application, in which case, it would slowly drain. If in a power point adapter it would charge regardless.
Now, even in idle, on my PC, it drains while charging, and charges extremely slow on a power point.
I have searched for over a week trying to find any sort of guide or help with this problem and I have certainly minimized some of the drain but this is ridiculous.
If anyone has any idea's on what it could be, please let me know. I have tried cleaning all the dirt and gunk out of the charging point, the only thing I haven't done is pull apart the phone to see if its a hardware problem (Which I am starting to think it might be.)
have u tried with another usb cable?
lawong said:
have u tried with another usb cable?
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Click to collapse
Yes, I have tried various USB cables on various USB chargers, even non USB chargers I had laying around. And as I said, I have also switched the batteries into my wife's phone and they charge fine there.
The problems only started once I upgraded to Marshmallow.
It also persists when the phone is switched off and charging. It's just slow.
Ven942 said:
Yes, I have tried various USB cables on various USB chargers, even non USB chargers I had laying around. And as I said, I have also switched the batteries into my wife's phone and they charge fine there.
The problems only started once I upgraded to Marshmallow.
It also persists when the phone is switched off and charging. It's just slow.
Click to expand...
Click to collapse
Do they persist while on L? Could possibly be a conveniently timed hardware failure.
Sent from my SAMSUNG-SM-G900A using Tapatalk
Ven942 said:
I have a Galaxy S5 G900I running G900F custom rom, Resurrection Remix 5.6.7 Marshmallow.
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Click to collapse
Your default CPU 1900.0 MHz (8-core) this now running at 2400 MHz, you are lucky that the phone did not permanent damaged up to date.
Find S5 G900I compatible ROM and not what ever ROM.
try to factory reset your device 1st. if its only started after MM update then must be software issue.
lawong said:
try to factory reset your device 1st. if its only started after MM update then must be software issue.
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Click to collapse
Done that. Had a previous ROM installed and the battery was better. But I want to know how to fix the issue, I don't want to revert back to older software.
I know its possible because even with the same rom installed, before I bricked it and forgot to back it up, I had better battery life.
Kiriakos-GR said:
Your default CPU 1900.0 MHz (8-core) this now running at 2400 MHz, you are lucky that the phone did not permanent damaged up to date.
Find S5 G900I compatible ROM and not what ever ROM.
Click to expand...
Click to collapse
First thing I did was cap the cpu usage at 1900mhz.
Go back to stock lollipop and check if u still have the problem
Ven942 said:
First thing I did was cap the cpu usage at 1900mhz.
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Click to collapse
It seemed that you did that unsuccessfully, OR you battery gets old and needs replacement.
At about 400 charging times, the battery this is now at 80% capacity or less.
In my S5 I have permanently activated basic power saving mode, this clocks the CPU always lower than Max.
The phone seems happy, and I am too.
By using one Qualcomm App I discovered how low is low with basic power saving mode on.
Flash a custom Kernel and you can set it more or less as low as you like
S5 this is a very complicate device, I am trusting only Samsung about it.
If this was an old tablet with out ROM support from anywhere, in this case I would.
*Detection* said:
Flash a custom Kernel and you can set it more or less as low as you like
Click to expand...
Click to collapse
Having trouble finding a custom ROM that's a stable build that runs on S5 and on Marshmallow. Would you happen to know any in particular that I could use?
consider buying a new battery
Ven942 said:
Having trouble finding a custom ROM that's a stable build that runs on S5 and on Marshmallow. Would you happen to know any in particular that I could use?
Click to expand...
Click to collapse
I use a stock MM port G900FXXU1CPD7-BTU
But you could just flash a compatible custom Kernel and then have control over the CPU/GPU clocks
*Detection* said:
I use a stock MM port G900FXXU1CPD7-BTU
But you could just flash a compatible custom Kernel and then have control over the CPU/GPU clocks
Click to expand...
Click to collapse
Sorry, I meant to say custom Kernel, not rom.
Ven942 said:
Sorry, I meant to say custom Kernel, not rom.
Click to expand...
Click to collapse
This one looks like it supports stock TW 6.0.1 MM for the G900F
http://forum.xda-developers.com/gal...kernel-phoenix-kernel-v7-marshmallow-t3340407
But like always, do your own research before flashing
EDIT - Actually it looks like the dev has left out OCing from this Kernel, not sure about downclocking/under volting - maybe request it in his thread

Slow Charging on 7.1.2

so this topic was being discussed in the RR 7.1.2 official thread as many/some of the members there are having this issue. moved here as not to spam the thread there and deviate from the main topic. can anyone advise on that? using original charger and cable. getting between 200 and 700mah. and hope this isn't a deviation from the topic, but any progress or workaround the shutdown bug when phone reaches <= 20%? or any other percentage other than 0?
RockyAJ said:
so this topic was being discussed in the RR 7.1.2 official thread as many/some of the members there are having this issue. moved here as not to spam the thread there and deviate from the main topic. can anyone advise on that? using original charger and cable. getting between 200 and 700mah. and hope this isn't a deviation from the topic, but any progress or workaround the shutdown bug when phone reaches <= 20%? or any other percentage other than 0?
Click to expand...
Click to collapse
Hello,
I'm not aware of the slow charging issue. I haven't updated my wife's N6P yet as I'm waiting for Pure Nexus developer to release 7.1.2
Just... There's no progress or workaround for the early shutdown issue. The batteries have likely degraded prematurely. People still under warranty get their battery replaced by Google/Huawei...
Cheers...
i have no shutdown bug thankfully, but i can confirm that ever since i flashed DU Official 7.1.2 rom , charging has slowed down quite significantly.
i do not know why but i defintely noticed that charging has become much slower than when i was on 7.1 hmmm
---------- Post added at 12:30 AM ---------- Previous post was at 12:27 AM ----------
i have no shutdown bug thankfully, but i can confirm that ever since i flashed DU Official 7.1.2 rom , charging has slowed down quite significantly.
i do not know why but i defintely noticed that charging has become much slower than when i was on 7.1 hmmm
leondestiny said:
i have no shutdown bug thankfully, but i can confirm that ever since i flashed DU Official 7.1.2 rom , charging has slowed down quite significantly.
i do not know why but i defintely noticed that charging has become much slower than when i was on 7.1 hmmm
Click to expand...
Click to collapse
that's what happened on RR as well. not all but some members are mentioning it. so i started this thread, in case someone would have the knowledge how to fix it. there was a thread for a thermal mod or something in General, but then a warning on using it arose. so... hope someone can give some solution
RockyAJ said:
that's what happened on RR as well. not all but some members are mentioning it. so i started this thread, in case someone would have the knowledge how to fix it. there was a thread for a thermal mod or something in General, but then a warning on using it arose. so... hope someone can give some solution
Click to expand...
Click to collapse
i know about that thermal mod , but i dislike using such things.
i only use custom kernel (flash kernel) and that's it.
i thought it was only me, but seriously now that i see this 'slow charging on 7.1.2'
i straight out remembered that how over the last few weeks charging my phone has become so slow.
it used to charge it super fast.
now i'm wondering whether i should go back to 7.1 =_=
leondestiny said:
i know about that thermal mod , but i dislike using such things.
i only use custom kernel (flash kernel) and that's it.
i thought it was only me, but seriously now that i see this 'slow charging on 7.1.2'
i straight out remembered that how over the last few weeks charging my phone has become so slow.
it used to charge it super fast.
now i'm wondering whether i should go back to 7.1 =_=
Click to expand...
Click to collapse
i came all the way from MM. missing xposed and this charging speed...but i do have faith someone will point us in the right direction...hopefully
Is anyone using accubattery? Seems like a good app telling you how much your battery has degraded over time and your charging speed. Don't know how accurate it is.
My phone has been bone stock since day one. Regarding slow charging , I have not ran across it. Maybe issues for phones running custom roms .. etc.
You said original cable and charger. I'm an electrical engineer and flexible cables are notorious for wires microfracturing which is considered an open path. Because they are moved around, bent, twisted, and the bundle of tiny conductors began to have breaks in some of them which will reduce it's total ampacity. Hence charging very slow. Kinda like bending a piece of aluminum back and forth eventually it breaks in half. Have you used a new Virgin cable to eliminate it as the culprit? That is most certainly the number one cause of slow charging.
dontbeweakvato said:
You said original cable and charger. I'm an electrical engineer and flexible cables are notorious for wires microfracturing which is considered an open path. Because they are moved around, bent, twisted, and the bundle of tiny conductors began to have breaks in some of them which will reduce it's total ampacity. Hence charging very slow. Kinda like bending a piece of aluminum back and forth eventually it breaks in half. Have you used a new Virgin cable to eliminate it as the culprit? That is most certainly the number one cause of slow charging.
Click to expand...
Click to collapse
I did try other cables with sane output. Thing is i tried MM and fast charging is there. Come to 7.1.2 it gives slow charging
i just reverted back to 6.0 RR and these are the results. so i guess it is rom based. hope that helps
and this is on stock ROM
so it's a rom issue apparently. just flashed screw'd latest build and i am getting charging rapidly. couldn't be happier
I don't want to blame ROMs for giving phone issues , but the official OEM software that are built for the phone works. Once you modify builds, kernals , etc...the phone will turn out different, thus will have issues. I have been using bone stock 6p since day one. The only issue i had was the 7.1.2 beta lol ...
RockyAJ said:
I did try other cables with sane output. Thing is i tried MM and fast charging is there. Come to 7.1.2 it gives slow charging
Click to expand...
Click to collapse
Try a different kernel if there is one.
already moved to Screw'd and all perfect there. no charging issues. just elementalX kernel and top notch.thanks
I'm on latest stable DU 7.1.2 and haven't noticed a slow charging issue. As for the early shutdown bug someone in this section posted a solution a week or two ago that he claimed worked for him and allowed the battery to go back to draining below 20%. It should be easy enough to find if you look for it. I don't know if it actually works because I haven't experienced that issue either but most people report that the issue does go away if you change the battery.
I have had this problem since 7.1.1 on pure Nexus. I clean flashed to 7.1.2 on pure Nexus yesterday and still not receiving rapid charging. Any thoughts?
manalicream said:
I have had this problem since 7.1.1 on pure Nexus. I clean flashed to 7.1.2 on pure Nexus yesterday and still not receiving rapid charging. Any thoughts?
Click to expand...
Click to collapse
So you are on OEM stock android OS ? Even using OEM charger ?
510jungleboy said:
So you are on OEM stock android OS ? Even using OEM charger ?
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Click to collapse
As mentioned I'm on pure Nexus Rom. I'm using stock charger. Have tried my spare charger and backup cables too. Could it be a port issue?

My phone won't do anything. The screen doesn't show anything i cant feel vibrations.

my phone wont do anything. i plugged it in a wireless charger and it shows as charging but nothing is happening. it doesnt turn on or do anything.
the last thing i did on it was flash android 12 rom, and it kept shutting down due to heating up. after that i flashed back to a one ui rom where it was fine, then it shut down and now this.
please help.
Welcome to XDA
Is the battery good?
Personally I wouldn't have upgraded it past 9...
blackhawk said:
Welcome to XDA
Is the battery good?
Personally I wouldn't have upgraded it past 9...
Click to expand...
Click to collapse
I mean, the battery was fine. It just used to overheat without me doing anything and it'd shutdown.
hnhgxngxhnyhnythythhy said:
I mean, the battery was fine. It just used to overheat without me doing anything and it'd shutdown.
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Click to collapse
Might have fried something on the mobo like the SOC. Forced thermal shutdowns aren't good.

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