Develop Bugs

Fast Way To Reset Your SGS Battery

I have done this many times.
Steps:
1) open root explorer, mount as r/w, go to data, system, and delete batterystats.bin
2) pull off you battery, don't shut it down, just pull it off.
3) insert back your battery, don't turn it on, and let it charge until it say 100%.
4) after 100%, don't pull your charger yet, turn your phone on. let it charge again until 100%, then pull your charger, now you will see your battery says "100%".

This doesn't work on all CM7 based roms, since the phone turns on immediatly after plugging in the power cable

Thank you for the tut, i'm gonna try it when i get back to school.
Does flashing with repartition reset the battery?
Isn't this supposed to be in yhe general section?
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skyworxx said:
This doesn't work on all CM7 based roms, since the phone turns on immediatly after plugging in the power cable
Click to expand...
Click to collapse
oo..i don't use cm7 base anymore because it doesn't support video call. sori m8.
mathijs727 said:
Thank you for the tut, i'm gonna try it when i get back to school.
Does flashing with repartition reset the battery?
Isn't this supposed to be in yhe general section?
Sent from my GT-I9000 using Tapatalk
Click to expand...
Click to collapse
even you flash kernel or modem, it will reset the battery..and the answer, yes.
p/s: correct me if i mistaken.

There is this app in the market which does the same thing. It's call Battery Calibration. It's much easier than doing the steps above ...

LacusClyne said:
There is this app in the market which does the same thing. It's call Battery Calibration. It's much easier than doing the steps above ...
Click to expand...
Click to collapse
As long as you happy m8
Sent from my GT-I9000 using XDA App

skyworxx said:
This doesn't work on all CM7 based roms, since the phone turns on immediatly after plugging in the power cable
Click to expand...
Click to collapse
Hmm hw to see for CM7 based roms. Im usin F1 Galaxy S2 rom and ur method dun seem to work.
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Press Thanks If This Helped!

Best way to calibrate battery

Everytime I reboot my phone my battery drops a significant amount. I tried charging it in full, unplugging it, & doing it again & then wipe battery stats but its still the same. Anything else I could do?
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shakim24 said:
Everytime I reboot my phone my battery drops a significant amount. I tried charging it in full, unplugging it, & doing it again & then wipe battery stats but its still the same. Anything else I could do?
Sent from my SPH-D700 using XDA Premium App
Click to expand...
Click to collapse
There are different theories/methods for this. I charge to full, unplug, wipe battery stats, plug in and charge to full again, wipe stats then let it run down to about 15% and recharge and wipe one last time. People will say my way is crap but it seems to help. Also, just letting the battery run down and charging back up seem to condition the battery to your new setup. There are several little tweaks made by devs in pursuit of better battery life so it may read inaccurately at first. Let your battery settle in. I say in a day or two, you will see improvement
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Dunno about the "best way", but this is a convenient way without having to boot into CWM.
Battery Calibration
NéMa
Market link

ghostrid3r said:
Dunno about the "best way", but this is a convenient way without having to boot into CWM.
Battery Calibration
NéMa
Market link
Click to expand...
Click to collapse
Thanks man. Worked well for me
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best way!!!!

Batt started drainning very fast

Guys, I don´t know what happened but 2 or 3 days ago I started noticing that every once in a while my battery starts draining super fast. I mean 10% in 20min. I went to bed yesterday with 67% and when I woke up I had zero battery. I notice that when this is happening the phone gets really hot. I didn´t change anything on the phone but I did get some updates these days (1 small system update, facebook, smooth calendar, facebook, whatsapp.....at least I think these were the ones). Any ideas what might be happening? It´s random thing. Yesterday it was good all day long and then at night it happened.
I´ve just tried doing a factory reset but nothing happened.

rawfa said:
Guys, I don´t know what happened but 2 or 3 days ago I started noticing that every once in a while my battery starts draining super fast. I mean 10% in 20min. I went to bed yesterday with 67% and when I woke up I had zero battery. I notice that when this is happening the phone gets really hot. I didn´t change anything on the phone but I did get some updates these days (1 small system update, facebook, smooth calendar, facebook, whatsapp.....at least I think these were the ones). Any ideas what might be happening? It´s random thing. Yesterday it was good all day long and then at night it happened.
I´ve just tried doing a factory reset but nothing happened.
Click to expand...
Click to collapse
Sometimes an app prevents your phone from going yo deep sleep. Install betterbatterystats. It shows which apps are causing wakeblocks. Uninstall all apps. Also, which rom and kernel u use?
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{< r o N o $ said:
Sometimes an app prevents your phone from going yo deep sleep. Install betterbatterystats. It shows which apps are causing wakeblocks. Uninstall all apps. Also, which rom and kernel u use?
Sent from my HTC One X using xda premium
Click to expand...
Click to collapse
When I go to power and then usage, the biggest consumers there are "Android System" (54%) and "HTC Sense" (24%). I´ve downloaded Gsam Battery Monitor and it tells me sreen 50% and app usage 46%. When I click in app usage it tells me Android System 20% and Kernel 9,6%.
I have no idea if these numbers are excessive or not.
I did a factory reset and I´m not charging the phone to check out how long it takes to go down from 100%.

rawfa said:
When I go to power and then usage, the biggest consumers there are "Android System" (54%) and "HTC Sense" (24%). I´ve downloaded Gsam Battery Monitor and it tells me sreen 50% and app usage 46%. When I click in app usage it tells me Android System 20% and Kernel 9,6%.
I have no idea if these numbers are excessive or not.
I did a factory reset and I´m not charging the phone to check out how long it takes to go down from 100%.
Click to expand...
Click to collapse
Go to recovery. Advanced, wipe battery stats. Nd deb see again after couple hours
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{< r o N o $ said:
Go to recovery. Advanced, wipe battery stats. Nd deb see again after couple hours
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Click to expand...
Click to collapse
Hi, can I do this if i'm not rooted?
Thanks!
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admp said:
Hi, can I do this if i'm not rooted?
Thanks!
Sent from my HTC One X using xda app-developers app
Click to expand...
Click to collapse
You can only do this with an unlocked bootloader and have flashed a custom recovery.
It's all in the 'One X All In One Kit'. Search for it .
Sent from my Galaxy Nexus using xda app-developers app

appiehappie94 said:
You can only do this with an unlocked bootloader and have flashed a custom recovery.
It's all in the 'One X All In One Kit'. Search for it .
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
Thanks mate!
Sent from my HTC One X using xda app-developers app

A factory reset resolved the issue.

appiehappie94 said:
You can only do this with an unlocked bootloader and have flashed a custom recovery.
Click to expand...
Click to collapse
Or charging to 100%.

BenPope said:
Or charging to 100%.
Click to expand...
Click to collapse
So you think that when you are at 100% of your battery, you suddenly get access to the recovery?... (this is what you literally say)
Or did you mean to say that your battery stats are wiped when the battery is at 100% .
Still I think that the second explanation is one big whoop, since my battery used to drain life too with a dubious combination of kernel, recovery and ROM. A fully charging of the battery (which I do every night) did not make this problem go away.
Sent from my Galaxy Nexus using xda app-developers app

Wiping battery stats does nothing. It's already been shown. Search Google. It's not going to magically make your battery lady longer
Unfortunately
Sent from my HTC One X using Tapatalk 2

In fact wiping the batt stats will not make your phone last longer on a full charge, it resolve the problem that the rom will not display wrong batt info
That's what i learned
As what Mr S says ... didn't see your post while i was writing mine

Factory reset resolved it

rawfa said:
Factory reset resolved it
Click to expand...
Click to collapse
Glad you got it working.
But just to reinforce this for other people: wiping battstats does nothing. Your battstats are reset everytime you charge too 100%.
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kylec said:
Glad you got it working.
But just to reinforce this for other people: wiping battstats does nothing. Your battstats are reset everytime you charge too 100%.
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
So does this mean battery calibration after installing a new ROM is useless? Or is that different than wiping battery stats?

yash777 said:
So does this mean battery calibration after installing a new ROM is useless? Or is that different than wiping battery stats?
Click to expand...
Click to collapse
Pretty much lol. I mean theres no harm in it but its a waste of time because lithium ion/polymer batteries don't have a memory effect.
So pretty much after you flash a new rom, just use it as per normal. I've tried a lot of different scenarios over the past 3 or so years with battery calibration and roms and never noticed anything significant. Mostly placebo
Edit: with that said, if you feel more comfortable doing a calibration and you feel your battery is better. Just keep calibrating
For example: when I flash a rom, I still wipe dalvik cache out of habit even though devs have already said it gets wiped when you do a full wipe lol
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Phone charging issues

Hello, I have a weird issue going on with my s3. My phone discharges like crazy when my data is on, and by that I mean it even discharged when connected to a charger. Also the phone only charges when connected to usb, and does not charge when connected to wall charger, even tho it shows the phone is charging but the battery percentage stays static. I have tried changing batteries, chargers everything. I also changed roms, formatted the whole thing, reinstalled and still the issue remains. Is there anything I can do? Please help.
Thank you.
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chirantan.f said:
Hello, I have a weird issue going on with my s3. My phone discharges like crazy when my data is on, and by that I mean it even discharged when connected to a charger. Also the phone only charges when connected to usb, and does not charge when connected to wall charger, even tho it shows the phone is charging but the battery percentage stays static. I have tried changing batteries, chargers everything. I also changed roms, formatted the whole thing, reinstalled and still the issue remains. Is there anything I can do? Please help.
Thank you.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
Seems like you have something running in the background when you data is enabled. Perhaps a app using GPS and data.
I'd download BBS (BetterBatteryStats) to narrow down the issue. Also, when you go under settings->battery, anything suspiciously high?

I have looked at battery usage abs android system is always usually high. Here is the screenshot.
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chirantan.f said:
I have looked at battery usage abs android system is always usually high. Here is the screenshot.
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Click to expand...
Click to collapse
Download BBS (you can find it on xda). Charge your battery to full and post the results once your battery is down to like 50-60%.
Android system can be a lot of things, seems you have awful signal though. That could be it, have you tried flashing another modem?

Actually I'm not on my hometown, this the signal is bad...otherwise usually u have good signal. Anyway I'll install bbs and get back with more data. Thanks for replies.
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Here are the better battery stats screenshots, a process called "AudioOut_2" is keeping the phone awake. I don't know what this process is or what it does. Can anybody help me to get rid of this issue? Thank you.
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chirantan.f said:
Here are the better battery stats screenshots, a process called "AudioOut_2" is keeping the phone awake. I don't know what this process is or what it does. Can anybody help me to get rid of this issue? Thank you.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
Do you have touch keys (tone) on? If so, turn that off.
Anything that makes your phone make sound from the rear speaker triggers AudioOut_2.

Ok I will try disabling touch sounds...but I have always had touch sounds on abd never had any issue, I dnt know what changed suddenly.
Thank you tho.
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[Q] (Solved) Strange issue: Phone going in Boot loop when removed from power source

Hi Friends,
I have a GT-N7100 and i updated it to 4.4.2 by taking the files from Sammobile N7100XXUFND3_N7100ODDFND2_INU. The phone was working fine till today evening. Initially it started to randomly reboot. Then suddenly it went completely into boot loop. But strangely when i connected it to power source it booted properly. I did factory reset, ROM flash multiple times and still the same issue persists. Can some one guide what might be the problem here?
I have done wipe cache, wipe dalvik cache and factory reset also multiple times.
Solution: Seems the battery is gone Kaput. Also i believe the reason is due to a high voltage charger i was using for quick recharge. lesson learnt... Dont use a high power charger

will this be a battery problem, as the phone goes into boot loop only when removed from power source

orkitect said:
will this be a battery problem, as the phone goes into boot loop only when removed from power source
Click to expand...
Click to collapse
My friend's device also has the same issue.
Any suggestion please?
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optimusPRIME said:
My friend's device also has the same issue.
Any suggestion please?
Sent from my GT-N7100 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I have ordered a new battery for this. Will check and will update the status.

orkitect said:
I have ordered a new battery for this. Will check and will update the status.
Click to expand...
Click to collapse
Are you tried changing kernel like Agni pure stock kernel for stock kitkat?
I thought it's rather voltage problem than Rom.
But I don't know exactly.
Sure,update your info when your new battery arrives.
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