SIIX Jelly Bean update problem: Experiencing longer recharge time.

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Is anybody else encountering this issue?

Mine takes over twice as long to charge than before. The phone was initially off when I started charging from 13%, then a couple of hours later I checked and it was about 55% when I turned the phone back on to do a couple of things. I put it down, still on but with no mobile or wifi enabled, and it continued to charge at the same slow rate.

I used the wall charger that came with it, in the same wall outlet I always use. I even changed to another outlet, but same thing. It's definitely related to the JB update.
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NBS

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Posted 5 years ago

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thenixter

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Hmm that's strange NBS, I charged mine last night from 5% to full in maybe a few hours and I'm also running Jellybean. Have you tried using a different charger and seeing if that has any effect? I also know it's recommended to do a factory reset after updating the phones firmware so you might want to try that and see if it helps. Don't forget to back up all of your contacts and other first though!
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NBS

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Thanks for the reply,

I don't have another charger, but I very much doubt it's the charger, given I've charged it many times and only had this problem the moment I was upgraded to Jelly Bean. Further, I've read about this problem on other phones after the JB upgrade and it appears factory reset doesn't really work. It would be a lot of work to backup, reset, re-download and re-configure about 70 apps for something that doesn't generally seem to fix the problem. I would definitely do it if somebody else already had this problem with this phone and fixed it that way.

There aren't many answers that I found useful or consistent when searching for fixes around the web. Just not a lot of info on our version of the SII with this issue considering how recent the Jelly Bean upgrade is.
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thenixter

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No problem. You could try plugging the phone into your computer with the usb cable and seeing if it charges faster that way. Typically it would be slower but in this case it might not be. Agreed it is a lot of work and can unfortunately be a pain. In the states the phone is referred to as the T989 or Hercules as it's carried by T-Mobile down there. You might want to check out a site like the XDA forums and see if you can find anything about this specific issue there as there's a lot of info on the device. Here's a link! http://forum.xda-developers.com/forum...
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NBS

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I tried plugging into the computer, same issue. In fact I'd say the time to charge from the computer and charger are pretty equivalent now. I'm going to try the suggestions below, then I'll check through the xda forum if that fails. Thanks!
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Cristhian Mejia

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Charging time on jelly bean don't seem different than before. Only issue for me is software says battery at 98% but hardware says phone battery at 100%. Clearly a software glitch.
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rikkster, Mobile Master

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It's a battery calibration issue, unfortunately there are mixed schools of thought on the issue.

Some say to wipe the battery stats service or batterystats.bin file in the data/system/ directory file altogether, but according to one Google dev...

"This file is used to maintain, across reboots, low-level data about the kinds of operations the device and your apps are doing between battery changes. That is, it is solely used to compute the blame for battery usage shown in the "Battery Use" UI in settings.

That is, it has deeply significant things like "app X held a wake lock for 2 minutes" and "the screen was on at 60% brightness for 10 minutes. It has no impact on the current battery level shown to you. It has no impact on your battery life".

Link below, continuation of article.

https://plus.google.com/u/0/105051985...

Regardless of the notes above, I went ahead and used the AIO toolkit for the T989 aka S2x - you don't have to be rooted for this, however you must have Odin, (I used version 3.07) and a copy of the Samsung Galaxy S2 (T-Mobile) CWM recovery version 6.0.3.1 (The software should download a copy for you). This will allow you to flash a recovery that has an Advanced option to wipe the battery stats service and batterystats.bin file.

AIO toolkit link:

http://forum.xda-developers.com/showt...

Download link:

http://www.dillonpos.com/fmanager/An....

The other controversial method, is to run the Li-ion battery down to 0%, leaving the device completely turned off and charging the device until the icon shows a full charge. It's thought that this method is the best way to recalibrate the battery whenever a new ROM has been installed.

Personally, I wiped the battery stats using the AIO toolkit after installing JB 4.1.2 and haven't had any issues with regard to the battery not charging fully or the battery taking an inordinate amount of time to charge. Battery life appears to be about the same if not slightly better in terms of length of time between charges.
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NBS

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I really appreciate the thorough response rikkster, especially given that you've tried it yourself and haven't experienced any issues. I'll give it a shot.
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Cristhian Mejia

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I actually resolved my issue. Charge phone while off, then turn phone on. After not phone will show 97-98% download battery stat eraser, NĂ©ma's app works well, run it regardless the battery being 100% or not and turn phone off. Let charge to 100% re-power phone and let charge. This time you should get a 100% icon and to disconnect phone from charger icon like in ICS. Now battery charge state behaving like ICS.
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Cristhian Mejia

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Strange I've never had this issue with CM10.
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rikkster, Mobile Master

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Yes, I had CM 10.1 nightly, running JB 4.2.2 previously. I just wanted to see what all the hype was about with the "official" release of JB 4.1.2. I think I'll be heading back to CM 10.1 JB 4.2.2 in the very near future. Glad to hear you've resolved the problem with your battery though.

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