Develop Bugs

Anker battery low power = screen flickering?

Just got my new anker batt and started first charging loop (0%-100%)
When the battery was on 1% the screen started to fliker (no idea how to call it otherwise) the back light just went crazy before the note went off.
Anyone know this phenomenon? Bad for phone? Or no problem?
Sent from my GT-N7000 using XDA

I had the same problem with the gold battery at 1% just before shuting down.

Don't fret, it does that with the standard battery too. It's just the AMOLED screen struggling to remain uniformly illuminated.
I'm not sure if it's damaging for the screen, but it's not a result of the battery you're using, just the fact that it's near dead-empty.

Happens to me all the time with my Anker battery. Never with the original battery, however. When turned back on after swapping batteries, there are no bad pixels and such as a result according to an app I use for bad pixel detection. I perform this assessment evrytime I boot up my phone just to make sure.

my screen flickers 1 second before my battery dies (standard official samsung battery)

Same thing happens with Galaxy Nexus. Istead of just normally turning itself off, the scrren starts flashing and distortions appears and then it just dies on me. Weird.

Same issue on stock battery.. reaching 1percent flicker then it dies out. No worries its normal!

no worry i think

I doubt there is any damage done... I've had it with the gold battery, not sure about the std one because I've never went back.
It's just pulling the last bit of juice before depleted.

Sama here with original battery and anker battery
I think its normal in amoled screen

noufalz said:
Sama here with original battery and anker battery
I think its normal in amoled screen
Click to expand...
Click to collapse
I just bought my Galaxy Note, and doing battery calibration, and when battery was on 1percent it start flickering, flashing, I was so f.. Scared I turn it off and waiting to full charge

Like already said that can happen with every battery that's almost empty. Don't worry, just charge the battery.
Sent from my revived Galaxy Note

My original battery more than 14 months old was showing this.
Got a new battery off amazon and all back to normal.

I went back to store, they said its not normal, got a replacement.
Proper behaviour is phone shuts itself off if below a unsafe level instead of this flickering.
Best assert your warrantee

baz77 said:
I went back to store, they said its not normal, got a replacement.
Proper behaviour is phone shuts itself off if below a unsafe level instead of this flickering.
Best assert your warrantee
Click to expand...
Click to collapse
True. Mine cuts out at 5%
From box 13......

I get the same thing from my stock battery at 1%.
If i'm playing a game when it does it though and i kill the game, it reads 3% so takes a little longer to finally shut down.

I had this problem a couple of times with my old battery...bought a new one and the flickering was gone!

The screen flickering means battery is end of life. Same thing happened with me with official battery and I replaced it today with another new official battery and its gone. Also I have noticed that my old battery became fat compare to normal one.
Sent from my GT-N7000 using xda premium

Battery indicator displaying the wrong battery life remaining S3 SGH-I747

The battery indicator on my brand new S3 SGH-I747 seems to be displaying the wrong amount of battery life remaining. Each time it hits around 40% the phone dies (no low bat warning) screen just flickers and shuts off. When you plug it in and turn it back on the battery life is at 0%.
After charging and using the phone for a bit I've noticed that if the battery indicator shows say 90% and you pull the battery and put it back in right away, it will drop by like 20%, presumably displaying the actual battery life left.
I've already replaced the battery with a brand new one, after that didn't help I tried flashing it with a few different ROMs none of which seem to solve this issue. Has anyone else had this problem or have any idea what might be causing it?
Appreciate any advice I can get on this, thanks!
Ps. I've cracked the screen a little so the warranty is void and I can't just get a replacement but I was having the issue before the screen cracked.

buds_17 said:
The battery indicator on my brand new S3 SGH-I747 seems to be displaying the wrong amount of battery life remaining. Each time it hits around 40% the phone dies and when you plug it in and turn it back on the battery life is at 0%.
After charging and using the phone for a bit I've noticed that if the battery indicator shows say 90% and you pull the battery and put it back in right away, it will drop by like 20%.
I've already replaced the battery with a brand new one, after that didn't help I tried flashing it with a few different ROMs none of which seem to solve this issue. Has anyone else had this problem or have any idea what might be causing it?
Appreciate any advice I can get on this, thanks!
Ps. I've cracked the screen a little so the warranty is void and I can't just get a replacement but I was having the issue before the screen cracked.
Click to expand...
Click to collapse
Try downloading BatteryCalibration from the Google Play Store and following the instructions to reset the calibration.

buds_17 said:
The battery indicator on my brand new S3 SGH-I747 seems to be displaying the wrong amount of battery life remaining. Each time it hits around 40% the phone dies (no low bat warning) screen just flickers and shuts off. When you plug it in and turn it back on the battery life is at 0%.
After charging and using the phone for a bit I've noticed that if the battery indicator shows say 90% and you pull the battery and put it back in right away, it will drop by like 20%, presumably displaying the actual battery life left.
I've already replaced the battery with a brand new one, after that didn't help I tried flashing it with a few different ROMs none of which seem to solve this issue. Has anyone else had this problem or have any idea what might be causing it?
Appreciate any advice I can get on this, thanks!
Ps. I've cracked the screen a little so the warranty is void and I can't just get a replacement but I was having the issue before the screen cracked.
Click to expand...
Click to collapse
You could also try wiping the battery stats in recovery, thus resetting the battery readings.

I'm assuming one of their responses helped out? I ask because I am having the exact same same issue.

[Q] Excessive battery drain while completely powered off

I'm having a very interesting issue with my HTC One. When I power the phone completely off (ie: Hold power button, click power off), the battery still drains when left alone for a few hours. I'd except maybe a percentage or two drained when the phone first boots back up, but its kinda unacceptable that in ~12 hours the battery goes down 15+%!!
Last night, at 8:00PM EST, I turned off my One with a bit over 80% battery remaining. I even rebooted into recovery this time and hit power off to ensure that the phone wasn't doing some crazy deep-sleep hibernation junk. This morning, at 9:00AM I turned the phone back on and had 63% battery! About a 20% drain for 13 hours of completely powered-off sitting on a desk? I've attached a screenshot to further describe the issue. I'm at a loss for this one. With my usage, the phone honestly drains the same amount of power with the phone off than if I just left it on!
To add more confusion: When I first got the phone (Monday after the launch), I didn't have this problem. I'd turn the phone off with 100% once it was charged and 12 hours later turn it back on to 100%. A week or two into using the phone, I started seeing this. I thought it was something weird with Stock, and Googling suggested that the HTC One had some deep-sleep hibernation mode to make boots faster, but after installing CM10.2 I have the same issue. Even with powering the phone off from recovery!
Any ideas? Anyone else noticing this? Is my One defective? (I hope I don't need to send it back.......)

Rain724 said:
I'm having a very interesting issue with my HTC One. When I power the phone completely off (ie: Hold power button, click power off), the battery still drains when left alone for a few hours. I'd except maybe a percentage or two drained when the phone first boots back up, but its kinda unacceptable that in ~12 hours the battery goes down 15+%!!
Last night, at 8:00PM EST, I turned off my One with a bit over 80% battery remaining. I even rebooted into recovery this time and hit power off to ensure that the phone wasn't doing some crazy deep-sleep hibernation junk. This morning, at 9:00AM I turned the phone back on and had 63% battery! About a 20% drain for 13 hours of completely powered-off sitting on a desk? I've attached a screenshot to further describe the issue. I'm at a loss for this one. With my usage, the phone honestly drains the same amount of power with the phone off than if I just left it on!
To add more confusion: When I first got the phone (Monday after the launch), I didn't have this problem. I'd turn the phone off with 100% once it was charged and 12 hours later turn it back on to 100%. A week or two into using the phone, I started seeing this. I thought it was something weird with Stock, and Googling suggested that the HTC One had some deep-sleep hibernation mode to make boots faster, but after installing CM10.2 I have the same issue. Even with powering the phone off from recovery!
Any ideas? Anyone else noticing this? Is my One defective? (I hope I don't need to send it back.......)
Click to expand...
Click to collapse
You have to go into settings>power and uncheck fast boot. With this check it kinda puts the phone into hibernation mode and it never totally turns off.
My solution above is for a Sense based ROM not sure what may be causing this running a CM based ROM. Kernel maybe????

mademan420 said:
You have to go into settings>power and uncheck fast boot. With this check it kinda puts the phone into hibernation mode and it never totally turns off.
Click to expand...
Click to collapse
I did this while still on Stock; didn't change anything. Note that I'm now on CM10.2 where Fast Boot isn't a thing. Also, powering off from recovery should negate any hibernation, which I tried last night and still saw a 20% drain in 12 hours!

Rain724 said:
I did this while still on Stock; didn't change anything. Note that I'm now on CM10.2 where Fast Boot isn't a thing. Also, powering off from recovery should negate any hibernation, which I tried last night and still saw a 20% drain in 12 hours!
Click to expand...
Click to collapse
CLUELESS I don't get that kinda drain with my phone being on and untouched. It may be a defective battery.

mademan420 said:
CLUELESS I don't get that kinda drain with my phone being on and untouched. It may be a defective battery.
Click to expand...
Click to collapse
That's what I'm thinking, although what is weird is that usually batteries are either defective on day 1, or degrade over time. It's weird that in the course of a week or two I went from a seemingly perfect battery (maintained charge while powered off) to a terrible battery.
To make matters weirder: I'd expect more than terrible battery life while the phone is on, although I'm not seeing anything excessively bad. This is going to be a nightmare trying to explain to VZ, especially because I can't just tell them I've diagnosed with CM10.2 and a custom recovery. What sucks the most is I'm (more than likely) going to get a "certified like-new" phone back... ugh...

Rain724 said:
That's what I'm thinking, although what is weird is that usually batteries are either defective on day 1, or degrade over time. It's weird that in the course of a week or two I went from a seemingly perfect battery (maintained charge while powered off) to a terrible battery.
To make matters weirder: I'd expect more than terrible battery life while the phone is on, although I'm not seeing anything excessively bad. This is going to be a nightmare trying to explain to VZ, especially because I can't just tell them I've diagnosed with CM10.2 and a custom recovery. What sucks the most is I'm (more than likely) going to get a "certified like-new" phone back... ugh...
Click to expand...
Click to collapse
Yeah, I feel your pain GOOD LUCK:fingers-crossed:

Annoying Battery Issue

My Note 4 is 14mo old and for the last couple months it just shuts off on me even though I have plenty of power left.
I am a light user and usually have enough power for all day use. I rarely use my phone down past 10-15%. I always put my phone on the charger when I go to bed at night when I have somewhere around 20% charge left. If I notice that I might not have enough power to get me through the day I'll put it on the charger somewhere between 30 and 40%.
Lately, like tonight I got a low battery warning at 30% power while I was on the phone. Not even two minutes later it shuts off. When I turn it back on it starts to boot up but then shuts off again. When I put it on the charger it was completely dead. This only happens 3 or 4 times a month but it's annoying because often it happens at the most inconvenient time.
I've also had it shut off and then when I put it on the charger it starts charging at 28% power.
Please let me know what may be going on here and a solution...
Thanks...

tomfrazier said:
My Note 4 is 14mo old and for the last couple months it just shuts off on me even though I have plenty of power left.
I am a light user and usually have enough power for all day use. I rarely use my phone down past 10-15%. I always put my phone on the charger when I go to bed at night when I have somewhere around 20% charge left. If I notice that I might not have enough power to get me through the day I'll put it on the charger somewhere between 30 and 40%.
Lately, like tonight I got a low battery warning at 30% power while I was on the phone. Not even two minutes later it shuts off. When I turn it back on it starts to boot up but then shuts off again. When I put it on the charger it was completely dead. This only happens 3 or 4 times a month but it's annoying because often it happens at the most inconvenient time.
I've also had it shut off and then when I put it on the charger it starts charging at 28% power.
Please let me know what may be going on here and a solution...
Thanks...
Click to expand...
Click to collapse
I had the exact same issue. I had 2 different batteries shutting off at 20-30%!.... Replacing the battery to a brand new one simply fixed it!.... if you are going to order one online try to avoid unknown brands . Also, pay attention there are some fake Samsung batteries claiming to be authentic.
Also if you still have warranty, contact Samsung and they should send you a new one. That's what i also did.

So you think its the battery and not software related? I was thinking software issue because I don't abuse my battery by running it dead and it's an intermittent problem.
I know that the life cycle of Li-ion is greatly reduced by repeated draining to below 10% (my kid's phones suffer from that. Seems like they can't make a battery last more than 6mo) but I've never had a phone battery go bad on any of MY phones including my old Note 2 even after two years. Maybe I just have a bad battery?

tomfrazier said:
So you think its the battery and not software related? I was thinking software issue because I don't abuse my battery by running it dead and it's an intermittent problem.
I know that the life cycle of Li-ion is greatly reduced by repeated draining to below 10% (my kid's phones suffer from that. Seems like they can't make a battery last more than 6mo) but I've never had a phone battery go bad on any of MY phones including my old Note 2 even after two years. Maybe I just have a bad battery?
Click to expand...
Click to collapse
Doesn't matter whether you abuse the battery or not. Some batteries just go bad faster than others. I also think it's your battery.
A factory reset without restoring apps will rule out a software issue though, but since we can't root, it likely isn't anything messing with your battery percent unless it's just an app draining your battery. But even if it were the latter, your battery wouldn't die then start charging at 28%.
Sent from my SAMSUNG-SM-N910A using Tapatalk

Pretty sure this is an actual built in feature. Mines always died at ~20% (since the 5.1.1 update) and once plugged into a charger and rebooted all my running apps and clipboard info is still running as if the phone never died.
My battery is brand new (from warranty replacement) and it still does this so this is why I think it's a "feature" to keep you from losing data in the event of a low battery event. Just my opinion.

It's not a feature. Mine goes all the way to 0% before it dies. I once read to take out the battery, hold the power button for 30 seconds (while the battery is out), then put it back in and see if it helps. This supposedly gets rid of any residual power storage. I don't know if this is a placebo affect by after I did that, my battery now goes all the way to 0 before dieing.

jack man said:
It's not a feature. Mine goes all the way to 0% before it dies. I once read to take out the battery, hold the power button for 30 seconds (while the battery is out), then put it back in and see if it helps. This supposedly gets rid of any residual power storage. I don't know if this is a placebo affect by after I did that, my battery now goes all the way to 0 before dieing.
Click to expand...
Click to collapse
Not exactly a placebo, but not sure if it truly helps. Doing this would clear all electricity stored in any capacitors in the phone. I'm just not sure how this helps.
And my battery goes all the way down to 0% too. It's not normal for the phone to due at any other % (except maybe 1%).
Sent from my SAMSUNG-SM-N910A using Tapatalk

is it a bad battery?

anyone have the phone shut off at about %41 ,is there a fix for this

gmoe65 said:
anyone have the phone shut off at about %41 ,is there a fix for this
Click to expand...
Click to collapse
Didn't happen anything similar on my phone, goes all the way down to 1%. But I have noticed that my battery on Oreo is a bit worse than on Nougat.
Sent from my HTC 10 using Tapatalk

petar01 said:
Didn't happen anything similar on my phone, goes all the way down to 1%. But I have noticed that my battery on Oreo is a bit worse than on Nougat.
Click to expand...
Click to collapse
Yeah mines was doing it on Nougat and now on Marshmallow,im sick of it doing it so I'm seeking a fix if it is one

I had something similar on some other htc phones, like Desire 816. Went down from full to 60%, and after a reboot it was 80%. Weird, but it disappeared after some time.
It might be bad calibration, or even bad charging habits.
Sent from my HTC 10 using Tapatalk

Mine is currently in for repair (although the repair centre seems to have lost it) for similar issues:
Begins to charge, reaches 24% then doesn't charge any more.
Runs down to around 20%, reboots and gets stuck in a boot loop, until I plug the charger in.
Charges fully, but shows 1% within an hour, then runs at 1% for the rest of the day.
Switches off when battery low, but shows a much higher % as soon as plugged in.
The above appear randomly. This behaviour started after running the phone in battery saver mode for a couple of days. A factory reset fixed it for a couple of days, but then the issues re-appeared.
Half of me hopes they'll find the phone to test and report back, but the other half is hoping for a new 10 or U11!

If you have still warranty then just send it to warranty. The battery of the HTC 10 is covered in the warranty. I've sent mine to warranty and they are replacing the battery now.