Database Users

[Q] Battery 0% Unknown and Screen Door Effect.

Greeting,
I have the 32GB 3G one, 2 issues I see here and I want to ask about it.
1 - Screen Doors Effect, If i look at the screen in 90 degree it's OK, but 45 degree like put on table and look from a 45 degree clearly I can see the Screen doors effect!.
Is that normal in Nexus 7 or just I got bad unit?! So RMA is a MUST!.
BTW: the Screen is GOOD, no black light bleeding, no dead pixels, no thin line.s
2 - Battery issues!, If the tablet hits 100% during charging, the battery goes to 0% Unknown!. "Red Icon"
Sometimes back to normal during the day! "while it's idle" or if i charge the tablet fora while!, but if i reboot, it went back to 0% Unknown!.
Now at the moment, it is charging and it's OK, but "hits 100% or reboot" the problem occur!
Is that relative to 4.2.1 problems or Also I have a bad unit maybe a defeat battery sensor?!
The tablet is working no sign of a Dead battery.
I bought it from US Google Store but now I'm outside US.
Update : Now while it's in charging mode, I use the tablet for no reason went to "Charging 0%"!!!

Here's a screen shoot for mine now, the battery goes live at 83% all of the sudden!.
as I said earlier the tablet working good except this "0% Unknown" with Red Icon all the time!.
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Hope to hear your opinion.

Looks like an oddity in the Os... Possibly due to a write error during an update.
Just back up, and factory reset, And reinstall the the stock rom.

studacris said:
Looks like an oddity in the Os... Possibly due to a write error during an update.
Just back up, and factory reset, And reinstall the the stock rom.
Click to expand...
Click to collapse
Did it and still the same!.
the problem is the system doesn't know what's the status of the battery anymore!.
Looks like Battery sensor is broken!

Are you rooted? If you are charge overnight and immediately wipe the battery stats in CWM when you wake up. This should identify if you have a bad sensor or if the tablet lost reference on the current status for some reason.
If you are not rooted you can unlock you tablet, try it out and if it still does not work, relock it and return it. Now is a good time to do it because you just did a factory reset on the data and it wipes it when you unlock the device.
sent from my perfect 32GB Nexus 7

Uh60m Pilot said:
Are you rooted? If you are charge overnight and immediately wipe the battery stats in CWM when you wake up. This should identify if you have a bad sensor or if the tablet lost reference on the current status for some reason.
If you are not rooted you can unlock you tablet, try it out and if it still does not work, relock it and return it. Now is a good time to do it because you just did a factory reset on the data and it wipes it when you unlock the device.
sent from my perfect 32GB Nexus 7
Click to expand...
Click to collapse
I did, The tablet is GOOD except these 2 things, Screen Door Effect I can live with it, but no Battery Status at all that's a Boomer!.
my nexus is almost perfect Lol.
last night, all of the sudden, nexus turned off and refused to be ON again! charged over night, no way to boot!, I can see the screen works while charging but no boot at all!.
after too many it does boot, as it's now in 2.4 I can't update it to 4.2.1 via OTA cause the battery is 0%.
Looks like I have to RMA it,
Finger crossed to get a Good one.

Uh60m Pilot said:
Are you rooted? If you are charge overnight and immediately wipe the battery stats in CWM when you wake up. This should identify if you have a bad sensor or if the tablet lost reference on the current status for some reason.
If you are not rooted you can unlock you tablet, try it out and if it still does not work, relock it and return it. Now is a good time to do it because you just did a factory reset on the data and it wipes it when you unlock the device.
sent from my perfect 32GB Nexus 7
Click to expand...
Click to collapse
Huh? Wiping battery stats isn't going to do anything. It is in no way, shape, or form going to have any bearing on anything related to charge indication. Furthermore, the simple act of unplugging the tablet after charging it automatically causes the file to be wiped.
For the OP... if you remove the back from your tablet, there's a rather good chance that you'll find a loose or disconnected connector in the vicinity of the battery.
Sent from my Nexus 7 using Tapatalk 2

najaboy said:
Huh? Wiping battery stats isn't going to do anything. It is in no way, shape, or form going to have any bearing on anything related to charge indication. Furthermore, the simple act of unplugging the tablet after charging it automatically causes the file to be wiped.
For the OP... if you remove the back from your tablet, there's a rather good chance that you'll find a loose or disconnected connector in the vicinity of the battery.
Sent from my Nexus 7 using Tapatalk 2
Click to expand...
Click to collapse
If I removed the back there's a chance I will lose the warranty.
any way, I did RMA with Google Store, will see how's my luck.
Now even the left Speakers becomes defective!

Phone turning off at 50% battery life

For the last week or so, I've noticed that my phone now powers off at 50% battery life.
Battery Monitor Widget reports the battery still having ~1000mah at this level, but the phone just dies. I feel like this is incorrect, because sometimes if I run it down slow near 50%, it will do that thing where it will flash RED on the LED when you plug it in for the first time (super low battery indicator).
I'm running AOKP 4.2.2 MR-4, but i've tried a few different roms, dirty and full wipe (factory clean), along with various kernels, but my phone continues to die at 50%.
Any ideas on how to fix this?

See attached screen shot for what I"m talking about. Battery drain will look fine, then all of a sudden, BOOM 0 percent, and I have to charge it.
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Yikes, definitely something going on there. Are you running a custom Rom?
Sent from my Nexus 4 using Tapatalk 2

thatguy188 said:
Yikes, definitely something going on there. Are you running a custom Rom?
Sent from my Nexus 4 using Tapatalk 2
Click to expand...
Click to collapse
Just went completely back to stock and then put the latest AOKP back on. Still seeing some weirdness. It's like it doesn't even use half the capacity of the battery (see discharge/charge graph)

h41cyon said:
Just went completely back to stock and then put the latest AOKP back on. Still seeing some weirdness. It's like it doesn't even use half the capacity of the battery (see discharge/charge graph)
Click to expand...
Click to collapse
If I had to guess, I would say you battery stats file is out of sync. After flashing different ROM's on a G1, I would have to re-calibrate the battery stats by letting the phone battery slowly die (phone powers off), then fully charge while phone was still off (8-12 hours), turn back on and repeat one more time. The stats file would fix itself.

I'm experiencing the same issue, but mine is not as severe. I've dropped as much as 25% battery, but the phone has never reached auto shut down. I'm worried that this issue will cause the red light of death.

SpookyTunes said:
If I had to guess, I would say you battery stats file is out of sync. After flashing different ROM's on a G1, I would have to re-calibrate the battery stats by letting the phone battery slowly die (phone powers off), then fully charge while phone was still off (8-12 hours), turn back on and repeat one more time. The stats file would fix itself.
Click to expand...
Click to collapse
yea def sounds like battery stats not updating properly

[Q] Device crashing and full battery drainage

Hi guys,
My device has started acting pretty weird for the last couple of days.
Firstly it started with sudden crash and reboot. I was shooting burst 20 images when it happened.
After the reboot, the battery went from about 70% , showed 0% and went into boot-loop, showing 0% battery every boot.
The only thing that helped was removing the battery. After a fresh start, the battery showed about 50%.
I tried to reproduce the same thing (shooting in burst mode) but couldn't repeat that error.
Then, after a few minutes, it happened again and again and again. (screenshot attached)
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I reflashed original ROM and reset to factory settings. Thought that this would solve it.
Today I had something new, same thing with the sudden crash, after recording a video.
The device crashed, restarted with battery @ 0% (previously was ~55%) and went into boot-loop, showing 0% battery every boot.
After removing the battery, the device showed 25% battery. After a few times that I removed the battery, the device showed 20% and again, boot-loop.
When I connected the charger, it started charging and I got to ~35% of battery.
After rebooting the device, it suddenly showed ~50% battery.
The jump is visible at the attached screenshot:
I have a 32gb sandisk ultra type 10 memory card. I heard that they may cause lagging on the device.
Also, the battery seems to be OK, not spinning on the table.
When connected to the charger, the problem doesn't seems to be happening.
Please, any suggestion will be appreciated.
I am very frustrated.

same ****ing problem . Hope someone will solve this ****ing issue .

Maybe its a defective battery. Check if your battery have a lump or not.
Sent from my GT-I9505 using xda app-developers app

The battery appears to be in good shape. No bumps and not bloated.
I was at the service center yesterday evening.
They installed the official ROM and did factory reset.
As the device turned on - surprise! Battery shows 0%.
Their suggestion was to replace the battery charging port flex cable and provide a new battery.
Today I shall leave the device for the procedure and report back after they finish to see if it works.

Look like hardware issue
Sent from my GT-I9505 using XDA Premium 4 mobile app

I do hope that this will solve the problem.
Although, I see more and more users are posting about this same issue.

So, got my SGS4 couple of days ago.
What they did was changing the battery and reset the device.
It seems that the battery life got longer and it holds almost for the whole day.
I disconnect it from the charger with 100% at 5:30 ,
and I have around 20% left when I go to sleep at around 23:00
I use the device on medium level. I do have phonecalls and whatsapp majorly.
Today, I read an article that Samsung admits having problems with the SGS4 battery and offers free battery replacement.
http://goo.gl/YoFDFB

Nexus 4 doesn't fully charge

I have been experiencing this problem the past weeks, maybe months. The phone won't fully charge and usually stay at a value around 80 - 85%. Sometimes, it even reports to be 100%,and at the moment you unplug it from the wall, it drops to these values. Sometimes, however, it does charge to a full value, but anyway, the battery life is horrible.
Here you have a screens hot of the battery stats.
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The rom I use is cyanogenmod 11. I always have been using this rom, since the moment I purchased the phone.
Like three months ago, my phone dropped to the floor and broke the screen. My home insurance company replaced the screen, so I think, even the phone is a year and three months more or less, I can't call LG for a replacement, can I?
I'm a bit worried because I'm making a long three week trip in some weeks, and I need to have a working phone.
I don't know if going with battery replacement, if try to flash stock and see how it behaves or what to do.
BTW. just for testing if it was the rom or not, I left the phone charging while switched off and got the same results. The original wall charger has the same results as if I charge it with a Samsung charger.
Thanks

I have the exact same problem, I posted about it a couple of days ago.
I have already replaced my battery once, that was almost six months ago, and now, I'm facing the same problem again.
I'm not sure if is only a battery issue, because this is my second battery with the same problem.

There is an app called batterie calibration by néma. I dont want to give up on your batterie/phone, so at least try this app out

I had the same problem with my old phone. What I would do was let the battery run down to 0% and let it switch off. Then i would charge it to 100% and it would work. Its only a temporary solution though as the battery would soon stop charging above a certain percentage after a few days.
I did change the battery on it but i experienced the same problem,it may be that the new battery was also faulty (if it was the battery's fault in the first place). What I did notice though was that when it did not charge above 80 or 85%, when the battery came to about 20% it would stay on 20% longer to compensate for the "lost" percentages. In essence it does charge to 100% it just doesn't show that on that battery bar.
Maybe give this a shot, it might work well for this phone. No harm in trying. You could also try reinstalling the ROM or returning to stock. For me on my old phone returning to stock did the trick.

same problem
i have exactly the same problem,'ive changed two batteries but there's still this problem.
give me a solution please!! i tried different roms, and flashed factory images of android 4.3 nd 4.4.4

It seems to be a common problem with this phone - not charging to its full potential. The other issue I have experienced - the phone goes dead for no reason. After trying a number of time trying to get it to turn on, it eventually does. I am waiting for the day that it actually does just die and I can purchase a more reliable phone.

SandiiDee52 said:
It seems to be a common problem with this phone - not charging to its full potential. The other issue I have experienced - the phone goes dead for no reason. After trying a number of time trying to get it to turn on, it eventually does. I am waiting for the day that it actually does just die and I can purchase a more reliable phone.
Click to expand...
Click to collapse
Something wrong with your phone. There is no such common issue. I've been using this phone since last 4.5 years.
Instead of waiting for it to die, is it not good go ahead and get a new phone?
Nitin

Moto G4 issues after latest patch of Nougat

Hi,
I updated my Moto G4 to Nougat last week. Everything was fine. Yesterday there was some 114 mb ota update. I downloaded it and since then I am facing two issues-
1. Whenever I lock the screen using the power/lock button on the side, the screens becomes black and white for a millisecond and then it gets locked. I haven't seen any other phone's screen becoming black and white for a tad and then lock. Is everyone experiencing the same?
2. The battery is draining just way too fast. 40% depletion since morning. I only used the phone to make two 4 minutes phonecalls. I did not install any new app or game. Any troubleshooting for this?
This is the build number etc.-
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Thanks

hey i got the xt1621 version and flashed the same firmware you are using, i'm not having the same probles you have, but i did a full reset after i flashed, my phone is bl locked so no root, the only problem i see is that i feel the phone a little slow, like it takes longer to open apps

billubakra said:
Hi,
2. The battery is draining just way too fast. 40% depletion since morning. I only used the phone to make two 4 minutes phonecalls. I did not install any new app or game. Any troubleshooting for this?
Thanks
Click to expand...
Click to collapse
Though it's unrelated to this update, when I first got this phone last year I had the same problem with the battery. What fixed it was manually recalibrating the battery. If i remember the steps correctly it was something like: Let phone fully discharge, plug it in and charge it with the power off for about 8 hours, power it on and keep it on the charger for at least another hour.
I updated my phone to Nougat yesterday and manually updated to the same update you're on. I haven't noticed that black and white issue with the lock screen and, if anything, the battery life seems better than on marshmallow. Hopefully battery recalibration helps out. A factory reset may not be a bad idea as well, especially if it wouldn't be a big inconvenience.

idriff said:
hey i got the xt1621 version and flashed the same firmware you are using, i'm not having the same probles you have, but i did a full reset after i flashed, my phone is bl locked so no root, the only problem i see is that i feel the phone a little slow, like it takes longer to open apps
Click to expand...
Click to collapse
Well I updated the phone via OTA update only, did not flash anything. The phone ain't slow though.
slipslip said:
Though it's unrelated to this update, when I first got this phone last year I had the same problem with the battery. What fixed it was manually recalibrating the battery. If i remember the steps correctly it was something like: Let phone fully discharge, plug it in and charge it with the power off for about 8 hours, power it on and keep it on the charger for at least another hour.
I updated my phone to Nougat yesterday and manually updated to the same update you're on. I haven't noticed that black and white issue with the lock screen and, if anything, the battery life seems better than on marshmallow. Hopefully battery recalibration helps out. A factory reset may not be a bad idea as well, especially if it wouldn't be a big inconvenience.
Click to expand...
Click to collapse
The phone charges fully in under 2 hours, thanks to turbo charging. Don't you think 8 hours are way too much? The black and white issue is being faced by other users too-
https://forum.xda-developers.com/mo...dian-users-t3384049/post70787901#post70787901

billubakra said:
The phone charges fully in under 2 hours, thanks to turbo charging. Don't you think 8 hours are way too much?
https://forum.xda-developers.com/mo...dian-users-t3384049/post70787901#post70787901
Click to expand...
Click to collapse
No. The whole point is that the battery percentage is inaccurate. Here's a guide for you:
https://forum.xda-developers.com/android/general/guide-how-to-callibrate-battery-device-t3308554
When I followed this process I let it charge overnight before turning it back on. I also didn't use the turbo charging charger that came with it, but instead a 5 port Anker usb charger. Perhaps I wasted time, but it worked.

slipslip said:
No. The whole point is that the battery percentage is inaccurate. Here's a guide for you:
https://forum.xda-developers.com/android/general/guide-how-to-callibrate-battery-device-t3308554
When I followed this process I let it charge overnight before turning it back on. I also didn't use the turbo charging charger that came with it, but instead a 5 port Anker usb charger. Perhaps I wasted time, but it worked.
Click to expand...
Click to collapse
Thanks. Will try the same.
That second photo of S6 looks scarier for a phone with non-removable batteries. Is that the case with most of the phones with non-removable batteries?