[Q] Battery loss during power-offs. - Galaxy Tab Q&A, Help & Troubleshooting

Since I got a tab p7300 and an ipad2, I haven't used my galaxy tab that often, sometimes I won't even boot it for one or two days. But after I flashed it into android 4.0, something strange happened, there is a sharp loss of battery power during the power-offs. As an example, I shutdown the machine with a battery gauge of more than 60% of power the day before yesterday, but when I tried to boot the machine today, it showed that I have to charge it since no power is left...I am not sure if it's the 4.0 rom or anything, coz when I flashed it back to miui, which is based on 2.3.5, it's the same, and I wonder why....

Related

Help! Galaxy Tab battery not charge after change the rom (P1000N)

Hi all
It all started when wanting to change my Android 2.2 to 2.3. I followed the steps
but when the installation using Odin, resumed in black screen (But music sounded the beginning), finding no solution tried down again to version 2.2.
P1000NUBJM2 version installed then, this worked, but every time I press the Power button the Galaxy restarts.
then installed a previous version P1000LVJJMA, also works, though now
said to be a P1000L.
Everything was fine until yesterday that the battery is completely drain. When
connect to the charger or usb cable, no load, the icon battery is flashing
after 1 hour is no more than 3 to 5% load.
Any ideas?
Hello,
I have a similair problem (but then the opposite) .SGT starts charging. After 10 minutes it gives the message completely charged. When I start using it within 5 minutes the battery is empty. I'm still on 2.2 because there's not enough time (battery) to flash it. This happened yesterday at once (only rooted it). I can see what's consuming the power but I can't influence how it's loading.
Could the 'rooting' be of any influence ?
Somebody else this problem ? Or even better an idea OR SOLUTION ?
****mesta said:
Everything was fine until yesterday that the battery is completely drain. When
connect to the charger or usb cable, no load, the icon battery is flashing
after 1 hour is no more than 3 to 5% load.
Click to expand...
Click to collapse
I suggest you try to install another rom if you are capable of doing so.
one of the ROMs you used (P1000LVJJMA) contains (afaik) a protected bootloader, so what you basically need to do is to find yourself a rom that can be installed on that bootloader (e.g ROTO-JME), charge your battery, patch the bootloader, and update to something nice like overcome with gingerbread or something.
What actually causes the tab to not charge i cant tell you, but i've read on the forums that software is responsible for the charging-mechanism, so if the software responsible doesnt work properly, that can be a reason for it not to charge.
Sorry about your tab..

Samsung Galaxy S plus random shutdown

hi guys, i'm getting really pissed off right now
i''ve got my phone for 3 months now and it worked like charm till the last month
every time my phone shutdown randomly , and when i restart it, my battery level is under the 10%
even if i charge it the whole night till 100%, after i use it a few minutes it shutsdown and the battery will be very low.
sometimes it doesn't even turn on anymore.
i can't use my phone now only when its charging because it doesn't shutdown then.
I've tried everything that i could think of, i've recalibrated the battery , installed different roms but i got the problem with every rom.
i've even tried it with a ics rom but still got the same problem
someone please help me
my phone had the same problem i have flash any costum rom but nothing and then i have flashed a stock original rom for fix that....and then retry a costum rom.
have you try to wipe /system /sdcard /data /cache /delik-cache and then flash a stock original rom with odin ?
Rajito said:
hi guys, i'm getting really pissed off right now
i''ve got my phone for 3 months now and it worked like charm till the last month
every time my phone shutdown randomly , and when i restart it, my battery level is under the 10%
even if i charge it the whole night till 100%, after i use it a few minutes it shutsdown and the battery will be very low.
sometimes it doesn't even turn on anymore.
i can't use my phone now only when its charging because it doesn't shutdown then.
I've tried everything that i could think of, i've recalibrated the battery , installed different roms but i got the problem with every rom.
i've even tried it with a ics rom but still got the same problem
someone please help me
Click to expand...
Click to collapse
I have the exact same problem, am about to buy a new battery tomorrow unless someone else has another solution? This might not be the proper forum but in here at least many i9001 users will read it.
I've had this problem for about a week, was very annoying while on holiday. I've tried using BroodROM BE 1.0, Stock KQE and now back to stock KPG.
Try ebay - you can easily find decent batteries for 5$ there.
pedrsantiago said:
Try ebay - you can easily find decent batteries for 5$ there.
Click to expand...
Click to collapse
Well yes I'm going to try a different battery soon but the odd thing is after my battery charge seems to drop down to 5% or so, it starts charging to about its original charge level without a charger connected. So it's basically 80%->drop to 5%->charge back to 60% without charger.
i'll try now to do a hard reset, go back to stock rom, then reinstall an costum rom,
will tell you if it works!
Plz mods remove/delete this sheeyat.. this is
Galaxy S Plus I9001 Android Development
i have used TeamWin Recovery for wipe all partition becouse with hard reset don't wipe /system and internal sd.
Rajito said:
hi guys, i'm getting really pissed off right now
i''ve got my phone for 3 months now and it worked like charm till the last month
every time my phone shutdown randomly , and when i restart it, my battery level is under the 10%
even if i charge it the whole night till 100%, after i use it a few minutes it shutsdown and the battery will be very low.
sometimes it doesn't even turn on anymore.
i can't use my phone now only when its charging because it doesn't shutdown then.
I've tried everything that i could think of, i've recalibrated the battery , installed different roms but i got the problem with every rom.
i've even tried it with a ics rom but still got the same problem
someone please help me
Click to expand...
Click to collapse
I thought I was the only one with this problem. I charge my battery to full and it starts draining normally. Then, when around 30-80% battery remaining, it turns off. It only turns off when you use it for a while, when the screen is off it stays on normally. After rebooting it turns off within a minute or so. This continues for a few reboots with the battery level remaining roughly the same. Eventually after a few boots it shows 3-4% of battery, after which I of course have to charge. Also tried calibrating and tried different roms but it still remains. I ALSO SWAPPED MY BATTERY WITH A FRIEND BUT IT DIDN'T HELP! It worked like a charm for him but I still got turn offs with his battery.
If i were you Guys, i would install stock rom and hand in my phone under warranty ( of course if you still have it ). Because if this occurs even when u swap battery, let samsung play with you phone then
Its not your battery..restore your phone to the way it was and give it to samsung
i'm getting pissed of now, even with the stock rom it randomly shutsdown.
i don't have any warrenty so i can't give it back to samsung
In case anyone's still wondering, in my case it did turn out to be a fried battery. If anyone else is experiencing the same issues I was, just check your battery to see whether or not it is swollen. If it's bigger than it should be, that probably means it's fried and you should replace it. I'm happily running custom roms without any trouble again now, and battery life is awesome!
Sent from my GT-I9001 using xda app-developers app
Rajito said:
i'm getting pissed of now, even with the stock rom it randomly shutsdown.
i don't have any warrenty so i can't give it back to samsung
Click to expand...
Click to collapse
Sorry Rajito, but you are having a serious problem, i think the motherboard is the problem, my friend had the same problem with his I9000 S simple. You shoud go to a service !
Hi guys,
I also have this problem, my phone randomly turns off and when I turn it on, it shows much less remaining battery percentage than before. (please see attached image) After turning on the value is increasing, sometimes from ~5% to 30-40% or more...
Now I have CM10 Jelly Bean flashed, but CM9 did the same sometimes but much more rarely than on JB. Today the phone 'died' three times until noon.
aToS88 said:
Hi guys,
I also have this problem, my phone randomly turns off and when I turn it on, it shows much less remaining battery percentage than before. (please see attached image) After turning on the value is increasing, sometimes from ~5% to 30-40% or more...
Now I have CM10 Jelly Bean flashed, but CM9 did the same sometimes but much more rarely than on JB. Today the phone 'died' three times until noon.
Click to expand...
Click to collapse
Yeah that's the exact same problem I had. In my case it turned out to be a fried battery, see if it's swollen or not, if you lay your battery on a table it should stay still and not wobble around. If the battery's not flat but swollen that means your battery is fried. In this case good news because you can easily replace it
avreijnen said:
Yeah that's the exact same problem I had. In my case it turned out to be a fried battery, see if it's swollen or not, if you lay your battery on a table it should stay still and not wobble around. If the battery's not flat but swollen that means your battery is fried. In this case good news because you can easily replace it
Click to expand...
Click to collapse
unfortunately it is absolutely not swollen, its fully flat :\
besides this I put out the battery now and put it back and it is showing only 2% percent of battery so maybe my battery is wrong
UPDATE: after uninstalling the pro version of Battery Indicator there were no random shutdowns at all, but the free version is fine o.0

Shutting down problem

Hi,
I'm experiencing this problem more than 1 month. I'm on CM10 with kowalski kernel. It seems my phone sometimes wrongly read battery status and drop battery level percentage from some value to 0 immidiatelly...and shut down occurs at the moment. I thought it could be caused by old battery, but it's not - I buy the new one and the problem still persist and it's VERY irritating...Any solution?
Thanks Jiri
Hello,
It happens also for me but only when I am around 15% and when somebody call me sometimes it fail down sometimes.
It seems that the deep sleep do not allow the system to read a correct battery value when screen came back and the system shutdown because of a too low voltage.
I did not found any solutions in several type of ROM.
Mike
This is a known problem..if i remember correctly tonyp and pengus will fix it in the neew 4.2.2
Sent from my LG-P990 using xda premium
But it's annoying as hell, for me, it starts when my batter is on 50% and low.... 5 - 10 times a day a have to turn on my phone...I cannot use alarm at all....
Andy HOT said:
This is a known problem..if i remember correctly tonyp and pengus will fix it in the neew 4.2.2
Sent from my LG-P990 using xda premium
Click to expand...
Click to collapse
Mmmhhhh I actually cant remembet them stating that it will be fixed. I remember tony mentioning that its a low priority rom bug. It might be fixed with 4.2.2 but i am not really sure. Regarding the issue I do experience it too but only once every few weeks.
Sent from my LG-P990 using xda app-developers app
I also have this shut down problem. A lot. Maybe 5 times a day and its also driving me nuts. Mine does not happen while phone is in charger - so its probably the "battery reporting wrong charge" problem. Im on new bootloader. I've seen it go from over 50% to 0% battery in an instant.
It might have happened before but much less frequently than now. I started noticing the problem a few weeks ago on Pengus CM10 rom with kowalski kernel (before reading about it). I reflashed the kernel a few times and upgraded the kernel once or twice during that period.
I switched to PA 2.6 - 10 without improvement (KK-116). No apps installed (except Antutu)
I even had the problem in TonyPs TWRP 2.4.3.0 when trying to backup my rom once. Phone shut down while running the backup. Plugged wall charger in while phone still being off and saw that i still had battery left - probably 30-50%. The LG charging graphics icon showed this (you know, the one that shows up if your phone is off and you plug in the charger).
I Tried the following using AIO v5 tool without luck:
1) Reintalled unlocked ICS bootloader
2) Reverting to Old bootloader / partition - then back to new bootloader. Then installed ROM.
I have also tried installing Django Manouche X 1.6.1 (KOB 0.7 kernel) and running Antutu a few times (right after first boot + reboot) with the same result: shutdown. No apps installed.
I can always reproduce the issue: run Antutu benchmark 1-5 times in a row manually on battery. Plugged in, this does not happen.
It happens with or without OC/UV.
I havent tested it extensively, so I cannot be sure, but it seems to me that the rom/kernel isnt the problem since it also happened (once) in TWRP. Could it be the bootloader? Granted this is only a guess, since i have NO knowledge of Android programming or inner workings. Or maybe this is what happens when the LG battery is dying? I got the phone just as it came out.
Edit: BB 30A
I guess i have the same problem but either worse or something totally different.
Regularly around 70%, my battery just drops to 0% and my phone shuts off. It can happen anytime for me and it usually happens just after about 10-15mn of using my phone.
This morning it shut off at more than 90% and then got stuck in a bootloop i presume because it says it doesn't have battery.
Update:
I tried reflashing 30A BB. Didnt help.
Tried Django Manouche X 1.6.1 with kernel without zRAM or ramhack mod. Didnt help.
I Also tried PA 2.6 - 11 on old bootloader, and the battery-jump shutdowns continued when running antutu.
Flashed (completely stock - no rooting etc) ICS 30A with 30A BB through AIO v5. Didnt help. No tweaks or apps (except Antutu) installed. On Antutu run number 5 the phone restarted (with bootloop). Had about 36% battery. Pulled battery, rebooted, phone shut down before booting ROM. Plugged in charger, booted into ROM, showed 100% battery for 10 seconds before showing 30% battery. Tried with quadrant and 30% battery: phone shut down on run 2. Pulled battery, rebooted. Messed around with camera and gallery for 5mins at 26%: phone shutdown.
Im totally lost ... if its not the battery (as indicated by the first post (OP)) i have no idea whats going on. Maybe some other piece of hardware inside the phone is to blame. A piece of hardware that is only called upon when on battery and not when on charger. Maybe a power regulator (or some such thing) is broken?
Next test: Stock GB with GB BB
Edit: Well, the GB ROM + GB BB didnt work either: Gueste2X GoodBye v2.0R + 20L BB rebooted at 75% battery running Antutu. It showed a pop up about low battery and shut down shortly after. For the first time the battery icon still showed 75% when it shut down though.. And this time it showed 21% (not the usual 0% battery) when rebooting to ROM.
I think Im throwing in the towel regarding the software.
My dad also has an o2x, so i will try and swap the batteries and test both phones. I will ofcourse run antutu several times on my dads phone before swapping the batteries..
Update 2:
So i tried my dads O2X battery in my O2X. I Ran Antutu quite a few times and my phone didnt shut down. So I'm pretty certain my battery is messed up which is the reason my phone shuts off "randomly" showing a sudden 0% battery.
Through a google search i found a guy stating that the battery often starts "bulging" when its messed up like mine. His test was to lay the battery flat on a hard even surface and spin the battery. If it keeps going for a couple of seconds it might be messed up. My battery is definitely "bulging" and spins for much longer than my dads. His spins for less than a second. Mine spins for maybe 2 seconds. Not very scientific, but i could definitely see a difference. And i can see the excessive bulging on my battery if i look at it from the side.
So Im ordering a new battery tonight - the originals dont cost much thankfully.
Hope my walls of text can help others in the same situation.
Last update (promise):
Got the new original battery today. Charged it to 100% and used my phone for various tasks until the battery hit 70%. (This was my old batterys absolutely certain "breaking point" when running Antutu benchmark. On my old battery Antutu would crash on first or second run every time when battery is at 70%.)
On the new battery i quit running Antutu after the 13th run in a row without a "battery low" shutdown. The battery was at 40% after the 13th run.
I lay the old and the new battery flat on my smooth metal mousepad and spun them around. The new battery spun for less than 1 second. The old battery spun for almost 4 seconds on one side - almost 3 seconds on the other side.
Two working batteries (my dads 2+ year old battery and my own brand new one) performing equally and at the same time differently to one defective battery. It lends some credence to "the guys" theory that battery defects might result in "bulging" of the battery.
Which means, your battery can be defective but not "bulge". If however, your battery is "bulging" something likely is or will be defective. Fantastic knowledge to posess, if true.
It might seem like a "well duh, thats obvious" revelation, but Ive held my old battery in my hands a lot the last 2 years (especially lately) and I did not notice the "bulging" at any time.

[Q] Galaxy Tab 8.9 random shutdown issues

Hello. Our family has one 8.9 tablet. To upgrade to ICS i had to completely wipe it because KIES did not recognize the device.
After reset to factory settings i was able to upgrade tabled to ICS.
After upgrade we noticed from time to time tablet shuts down by itself. Battery is not the issue because it happens with plently of
battery left. We try to always keep battery above 15% charge so shutdown due to low battery is not the issue.
Once it went down with 86% of battery.
What should i check to find out the cause of these random shutdowns?
I do not want to bring it to the service center because all they do here is to wipe it clean and install new firmware.
I suspect this is not the case.
My wife seems have same issue... with black square on screen... and need very long time to charge @ full...

Found solution for Nexus 5 battery drain LTE modem standby issue

I had a battery drain for a long time on my Nexus 5. Device was awesome when I bought it, but after upgrading to Lollipop I started to get strange battery drain problem which reason cannot be found easily, it's nothing in Settings->Battery on graph - no apps using battery, but it goes from 100 to 0% in about 7 hours. Even if I dont use it at all, battery discharges very fast.
I tried different ROM versions and found that battery life is soo much better on 4.4.2. I found that 4.4.2 has baseband v 1.0, and starting from 4.4.3 it was upgraded to 2.0.
So I solved it by downgrading baseband to 1.0. I found that very likely that any baseband works with any ROM, so I flashed latest 6.0.1 system, then flashed radio from 4.4.2. fastboot, unlocked bootloader. I think to make it work reliably, don't make it boot first time after flash, hold power button, and Volume down, it reboots to bootloader. Then do factory reset and reboot. In my case radio is recognised and works.
Now I have latest stock ROM and radio from 4.4.2, and battery life in standby is so much better. I tried to replace battery 2 times, but battery was actually OK. For those who have similar problem u should try it. Google made a great device, still fast and works very good, but they or Qualcomm maybe ****ed up things in modem firmware since version 2.0. Probably not everyone is affected but for me difference is huge, its like normal device with reasonable battery life, but becomes junk after software update. I will think twice before I'll buy something more from Google. Why I must to support device myself, if I found how to fix this why they still not released proper fix? Probably Google doesn't care about product quality after several months.
surely, is an experiment to try .also if , the battery drain problem I'm suffering, like many, more when the screen is on.
during screen off the battery falls but little, turned on the screen, also even if you do nothing and just read [low light, dark menu through substratum, dark backgrounds, cpu and gpu limited kernel with blue spark powersave settings, night vision in browser] decreases the battery 1 % every 2 minutes, something noted by many and to me with various Roms [octOS mm e n, purenexus 6 and 7, stock] .
this is for me the "great mystery" of this device

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