[HELP] Phone restarts unless connected to power source. - Galaxy Grand 2 Q&A, Help & Troubleshooting

ROM: CM12.1 Mukul Soni build
Is this a battery issue or rom issue?

when u connect to charger how much charging it shows..??
may be you need ti calibrate youre battery.bin file using battery calibration app but u must have to charge youre battry 100%
if it not work may be its battery issue than try another battery if still u have problem than it may be some hardware isue.
Sent from my SM-G7102 using Tapatalk

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Battery problems

Hi,
I konw there are so many of these threads but I've problem with a brand new battery..
I've a brand new battery and have calibrated properly after flashed ddjp6 with fugumod ultra...
Now when I play a game or use internet, it suddenly shut down (the phone) within 5 minutes even at 91% battery.
And when I started phone I put on charging, it copleted in 15 to 20 minutes...
Again use , again shut down...
Any one can help..
Thanks in advance...
Is it an original battery?
Ya
It's from samsung store...
Mine is also new nd facing same problem...
Sent from my GT-I5800 using XDA App
Is this a problem with some app?
Because phone shuts down before 0 battery...
I had this problem but it was solved after buying a new battery. Your new battery may be defective...? I don't know, try your friend's battery or something first.
Sent from my GT-i9003 powered by MIUI
Calibrate your battery using battery calibration app.. You can download it from market for free
Sent from my GT-I5800 using xda premium
I've tried it.
So I came to know that battery was 90% before starting internet,
Then shut down after a few minutes...
When I started the phone , it was 40%...
So before battery goes zero,
Phone, shut down...
Ive done it...
Battery 90%
Started internet
Phone shut down within a few minutes
Started the phone
Battery was 40%
That meabs before battery goes zero,
Phone shuts down
:what:
Is your problem solved?
Tell me if you get any soln...
I have the same problem! My battery is 1 year old. I changed few ROMs and Kernels, wiped batterystats... nothing helped!
I'm using internet for 5min. (100%->89% sometimes 70%) and than it shut down immediately.
connect it on charger (90%)
after 5-10min. charging, battery is 100%
without using it lasts for 3-5 hours.
Now I'm waiting for a new battery to come, and after I test it I will give a report.
Go to customer care...
I just have solved my problem...
If you can't find any other way...
so what did they tell you? you got a new battery? is it a problem in hardware or software?
I went to customer care and they are saying that its hardware problem
To nidjo 16
If your problem not get solved after a new battery, go for store,
Because we already have tried kernel and rom options...
My problem now get solved
Hope your problem get solved...
Well they told me that it was some hardware problem...
Though they didn't tell me about the problem exactly,
My phone is working good and that is what I need
I'm having the same problem.
Have anyone tried replacing the battery?
If the battery is even slight bend,
Replace it
Rude customer service by samsung
Samsung service centre in RK Mutt rd, Chennai is very very Hostile to customer.
I was treated worst by the 4 jokers at the counter
everyone acting busy and thats what prompted me to find this wonderful forum..
The battery problem can be solved as follows:
1. Discharge battery by games or any high battery consuming apps
2. Charge the phone overnight [it may take 5-10 full discharge cycles for battery to understand and give a good backup!!
3. delete Battery stats using CWM
Try an alternate kernel..
Some modifications I got with my customer care (which is very good! )
For 1
Charge after battery goes below 20 at least once a month...
For 2
Don't charge over night, when the battery is new...
At least for the first time
More stuff
Do not use much during charging...
At least internet or wifi
And don't charge for too much time...
(i mean when battery level is still high for use)
Cheers....
Had same problem
used a new Rom and new Kernel and tried so much.
Battery Calibration dont helped.
then i changed battery and yeah that helped since the new battery all is working well
But yeah if it helps I must say that i charged my phone most time via usb and used it for internet via usb teethering, now i only charge it over night and the battery stays much longer
When only use it for music and use internet only shot or use wlan then it stays for 3 or more Days and i think that is very good for an android phone !

Random Battery drops and charges

Hi all,
I am facing sudden battery drops using the phone & sudden battery hikes while charging.
Attached are the pictures.
What can be the reason for this.
Present rom details are attached.
I have tried out recalibration via battery calibrator application & via recovery.
Still drops randomly.
Any solutions for this?
Can you specify, Which device you have, i mean Defy Red, Green or Defy Plus and is it from Eppy's or Quarx build??
battery hardware problem. i had the same issue. now i have a new battery and the problem is gone. so its hardware.
lordyka said:
battery hardware problem. i had the same issue. now i have a new battery and the problem is gone. so its hardware.
Click to expand...
Click to collapse
We can see a pattern in Drops.. it always drops on some specific Roms and usual drops is between 60%-40% .. We Just need to collect the info. for the Bug.. I am pretty sure that battery drops are experienced only for those who are using GB builds on Red Lens Defy and also who flash Battery Fix.
Calibrate it ?
Sent from my GT-S5830 using xda premium
sometimes starting flashing again from sbf..
and installing evrything again works very well.
try it maybe it will wrk for u..

Battery drain - slow USB charge - driver issue?

So my gf's Nexus 4 is having some issues with the phone - on idle it drains in 8 hours, and it seems to charge very very slowly.
I tried connecting to the computer to copy off settings and photos but Windows is telling me in device manager, "Device Descriptor Request Failed". It's actually draining faster than it's charging when on USB (but is fine on AC, still very slow though).
Was using ART.
Has anyone else had a similar problem?
Download an app called battery stats so that u wil know what app cause the battery drain and for slow charge, flash custom kernel that has fast charge feature..hoping it helps u
Sent from my w500 using XDA Premium 4 mobile app
arenola said:
Download an app called battery stats so that u wil know what app cause the battery drain and for slow charge, flash custom kernel that has fast charge feature..hoping it helps u
Sent from my w500 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Already done all that - underclocked and undervolt, still no improvement. BBS installed as system app with root, showing no wakelocks (highest one is 8 minutes).
1. drain: can be a kernel related or os problem, so flash a new kernel, or reflash your current one, or flash another customer rom or stock
2. slow charging: you should try another USB cable, on my old HTC cable my phone is charging about 33% slower!
.. or it is charging slow because of the drain.. hmm, think last one
3. what do your battery stats tell you?
keep calm and push the thanks button!
I restored my phone back to factory Kitkat last night, and overnight there was 3h of constant battery drain under Google Play services.
Might downgrade to 4.3 and see if it's still there.
Might be the battery is having some problem. Contact google if you still have warranty then ask for replacement.
rishabl1d said:
Might be the battery is having some problem. Contact google if you still have warranty then ask for replacement.
Click to expand...
Click to collapse
It was bought on launch day - out of warranty now
I don't think it's a physical thing though.
Check system internal battery status, to see who uses battery. And also check if wifi, gps, etc are always on.
If RF, Android OS, etc uses most, and battery drain fast, try another ROM and Kernel also baseband firmware. If app uses a lot, uninstall it and have a try. Disable wifi, gps, etc.
If you can, try charge your phone from shutdown, where no app runs. It should be fast, otherwise, some hardware should be replaced.
Did a factory restore from the Nexus image, just left it idle with Wifi on and no other apps other than the default Google ones, and it still drained itself after 8 hours.

Incorrect battery status!!

Hello im using validus Oreo ROM
Almost the ROM was good
But one problem
While I switch off my mobile and charge it
After the two hour I look the phone it show me 20% battery
But I use the mobile for an hour the battery was still at 20%
I think it has incorrect battery status bug
Even I restart the mobile again again and again it show only 20%
Any alternative method?? To know my correct battery status
Remove your phone's battery and insert again.
mr.anonymous12 said:
Remove your phone's battery and insert again.
Click to expand...
Click to collapse
Thanks for ur replay. I will try if it happen again!!!
brother charge ur phone to 100%completely once and calibrate it once using any battery calibration app that might solve

[Q] Battery level drops after offline charger

Hi all, i have the following problem with a Redmi 4 Prime with latest MIUI stable:
- Offline charged, shows 100%, remove charger, turn it on and battery level drops to 80/70%
- Charged while on, rises to 100% then drains normally
I've never encountered this problem on any Xiaomi device, maybe replacing the battery is a good idea?
Thanks
Happened the same installing a new Pie ported Rom. I'm trying with battery calibration [root] to solve the problem. In my opinion it's not a battery problem, but only a wrong battery statistic/calibration parameters on the phone.
giouncino said:
Happened the same installing a new Pie ported Rom. I'm trying with battery calibration [root] to solve the problem. In my opinion it's not a battery problem, but only a wrong battery statistic/calibration parameters on the phone.
Click to expand...
Click to collapse
Me too tryng to address issue using battery calibration. Idk if Xiaomi phones got a "fuel gauge chip" like Samsung
Did you solve the problem?
I'm still struggling with it....
Solved here!
Charged while on till 100%
Calibrated battery with app
Discharged to 10%
Charged while off till 98% and turned on and... 98%!
So it was a bad batterystats file

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