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Phone just died in my holster.

This is probably the wierdest thing I have seen with any phone I have ever had. I'm at work with Inspire sitting in my holster. When I tried to go use it, it will not turn on. Nothing I do will turn it on. Unpluggin the battery, plug it into the charger. I have a spare battery at home which I will try, but I feel it just straight up died. Last time checked battery was > 50%.
I wonder if undervolting the CPU can damage the phone. I have been running UV for a while and it's not overclocked at all.
I can't even revert it to stock before I return it.

Well, if it won't turn on, I wouldn't worry about reverting to stock. The morons at the AT&T store will not be able to tell it's been rooted. As far as UV damaging the phone, it's not something I've heard of, but I'd imagine it's possible.

I highly doubt undervolting will cause damage. Overvolting yes, electricity starts to "leak" past transistor and damage gets done. Too much uv would cause erratic behavior and prevent startup. But not in a damaging way.
Sent from my HTC Desire HD using XDA Premium App

Well, the car charger didn't charge it but the wall charger was able to charge it. Apparently something caused the phone to discharge from like 50% to nada. Very interesting. I don't think it's my ROM or Kernel, and I haven't installed anything in like couple of weeks.

My phone has been dying quickly for the last 2 or 3 days... The phone is maybe 3 months old and I'm not a heavy user. The battery went from full to about 20% in 6 hours on standby today.
Only thing I see differently is that I got a message that a new update is available but I don't see how that would matter. Can someone point me to a link for updating the phone? I'm currently rooted.

Don't u just hate it when strange things happen w/ ur electronics that u can't seem 2 explain or figure out exactly what happened.

DocHollywoodHank said:
Don't u just hate it when strange things happen w/ ur electronics that u can't seem 2 explain or figure out exactly what happened.
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If you are rooted try doing a FULL WIPE with the wipe tool, Full Wipe 1.3 and reload a fresh rom that you know is reliable (I am using Leedroid GB) and do not load any apps until you try the phone out for a little while. Load first current widget and monitor how many milliamps you are drawing. Then slowly add apps one by one and whatch what is eating your battery. It sounds like a bad app or stuck sync....
Sorry, meant to quote Mr. Gordec.......

Battery Drains After Crash

My phone has been acting really weird the last few day. I had [ROM][MTD]CyanogenMod 9.0.0-rc2 UNOFFICIAL by TeamAcid[R5][Jul-20-2012 installed on my phone. But it would crash all of the time. Afterwards when the phone rebooted the battery would go from 100% to 9%. If I dont boot the phone back up right after a crash and wait a little while. When I boot it up the battery will be around 40-45%. I used [Heimdall][One-Click] The T959V Heimdall One-Click Collection [05/20/2012] earlier today, Just to see if I continued to have the battery problem. I only had the phone crash once while on the stock rom, and the battery did drain about 50% but I also started having a problem where I would lose my data connection all together. Rebooting the phone brought it back, only to lose it again after around 30min to 1hr. It has not crashed for about 3hrs now and I have not lost my data connection either. Anyone have any ideas what might be going on here? I tried deleting the battery stats with the battery at 100% before going back to stock but that did not seem to help at all. I downloaded a batter calibrator from the market place and tried that as well. Used it when the battery was at 100%. None of this has worked. Now that im back on the stock rom its only crashed once, but the battery did still drain. Any ideas? I would really like to go back to CyanogenMod 9 but its not worth it if the phone continuously crashes and kills the battery. Any help would be greatly appreciated.

Try Gremlins Remover.
sent from me

So you don't waste any more time, "battery calibration" is snake oil, lithium ion batteries don't need "conditioning" (and actually suffer from both high temperatures and deep discharge cycles), but the moon is made of cheese. Ok, at least the first two are true.
As you're having problems with one of the most stable and reliable GB ROMs for this phone, I suspect that you may have one or more of:
Bad battery
Bad user-land applications
Corrupt application data
Corrupt media data (for example, music on your microSD)
Bad phone
Bad luck
A "start over" approach with a complete clean-out either using the above-mentioned one-click, or doing the equivalent by hand (wiping all partitions, flashing stock, starting with a fresh microSD), then seeing how the phone/battery behaves without any apps would be the path I would take. If it passed that, I'd slowly start adding back apps, and only restoring data/preferences where you really need them.

Im doing the gremlin remover right now. I will let you guys know how to goes. Thanks for the advise, this has been driving me crazy.

Tried the gremlin remover last night and played with my phone today. Its still crashing and then when I boot it up back the battery is pretty much dead... I think i have a bad battery. Never had these problems with the phone before. Thanks for the help guys. I guess Ill get a new battery and see if that fixes the problem.

I have this EXACT same problem. I'm on AOKP and the battery with go from having a decent charge and die. Then if I take the batt out, hold the power button for 15 secs and let the phone sit with no batt for 10 minutes or so, the phone will go back to around 50% batt life. After gremlin remover and Bryan's one click back to stock multiple times, I've finally come to the conclusion that I need a new battery.

I ordered a new battery today. I will let you know how it goes.
Sent from my GT-P6210 using xda app-developers app

Mine does the same thing... doesn't really crash often.. once in a blue moon. But if I reboot. . I get that instant battery drain ...GR didn't fix it.... I just attribute it to ageing battery.
Sent from my SGH-T959V using xda app-developers app

So I looked I to this issue more. For anyone having this problem, remove the battery and place it on a hard flat surface to see if it has swollen any, if it has then the battery is defective. My battery actually rocks a little. I could actually tell it had swollen before I even put it on my desk.

That is only for seeing whether a cell has busted. It is normal wear and tear. That is kind of like how u lose battery life after hundreds of cycles because it is just how the current li-ion battery technologies work.
I would download the one click and also reflash boot loaders and repartition your device.
Sent from my SGH-T959V using xda premium

Tried that, even with bootloaders. OP also stated they used gremlin remover as well. As we we're both having the exact same problem, I was giving him a better solution that wasn't the standard "reflash, repartition, etc."

I finally got my new battery in. And all is well now. Thanks everyone for the advice and help
Sent from my SGH-T959V using xda app-developers app

thats crazy swapping you battery worked. lol, mine does it too. not so much the crashing just a simple reboot and it will be drop down from 70% to 1%. This was doing the same thing with my phone before my charging port got busted. So i had to swap out the guts from my old galaxy s with broken screen. When i put the new internals in i started with bh's one click back to stock and flashed antonx kernal. Then flashed cm9 and it still does it. i will try a new battery as well.

My thought (AFTER being solved)
Well, I don't mean to come off as rude, but come on guys! I've had this problem for a while, and as soon as it happened I knew I needed a new battery. On top of my phone being somewhat "old", the fact we all play around with it so much, and do so many battery pulls most likely does NOT help the matter. At least I screw around with my phone and try out many ROMs...
But I'm glad I have confirmation that a battery swap will do the trick. It sucks that stores don't carry the t959v battery anymore... Guess I'll be ordering online tonight.

My S3 battery dies at around 20% on the regular? wtf

So i've searched and not came up with anything. Im on a custom ROM and have recently noticed my phone will completely die when it says around 22-20%. I've changed ROMS and even went to JellyBean recently with no luck. I've reset battery stats, no go. Any suggestions beside taking the battery back to VZW? Im going to leave my phone turned off, and charge like that tonight to see if anything else changes.

It seems that its a battery issue. Nothing software related. Are you using a custom kernal?
Sent from my SCH-I535 using xda app-developers app

Bump for the EXACT same issue. My battery has died for the past three days when the phone is between 20-22%. I'm on Synergy rom with no custom kernel. I've ordered some extra batteries so I'll have a better understanding in the next week or so if it's the phone or the battery. Any feedback/suggestions would be great.
Also note that the phone gives me zero warnings that it's about to die. No flashing lights, low battery indicator, nothing. I'm usually using the phone and it completely powers off without a seconds notice, as if the screen has dimmed. Trying to power it back on just produces a light vibration but no led or screen activity until it's connected to a charger.

joshw0000 said:
Bump for the EXACT same issue. My battery has died for the past three days when the phone is between 20-22%. I'm on Synergy rom with no custom kernel. I've ordered some extra batteries so I'll have a better understanding in the next week or so if it's the phone or the battery. Any feedback/suggestions would be great.
Also note that the phone gives me zero warnings that it's about to die. No flashing lights, low battery indicator, nothing. I'm usually using the phone and it completely powers off without a seconds notice, as if the screen has dimmed. Trying to power it back on just produces a light vibration but no led or screen activity until it's connected to a charger.
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Did the new batteries help? i just started having the same issue. Verizon was nice enough to send me a new battery which should arrive in a few days

fatalfuryy said:
Did the new batteries help? i just started having the same issue. Verizon was nice enough to send me a new battery which should arrive in a few days
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Yes and no. I'm no longer having the issue anymore but I don't think it was the battery. I was a making a backup so I could install GW. Instead of booting to TWRP, I accidentally went to Download Mode. I couldn't figure out how to get out so I pulled the battery. I then booted to recovery, backed up, wiped cache, and flashed GW.
I didn't have the issue for a couple more days until I received the new batteries and haven't had to use the stock battery since getting the others. Still no issues (knock on wood).
I think one of the following fixed it:
Wiping cache
Booting to download mode
Pulling the battery
Sent from my SGH-I535 using Tapatalk 2

Bump...anyone have any luck? Same exact thing is happening to me...except my screen flickers a bit before dying.

Strange battery issue

Seems like about two or three weeks ago, just before moving to mf1, I started noticing my phone, while on the charger would not charge positive. It will actually loose battery, even though its plugged in. I have tried multiple chargers, and bought a new battery, but still the same. After a brand new flash, like what I'm on now which is Hyperdrive, it seems to charge initially, then within a few hours of use, it goes the other way. It won't get over 79% even when left on charge overnight. I am considering odining back to stock unless there might be a fix for this. Its almost like the charging drivers are screwed u. When I power the phone off, and try to plug in the charger, no battery symbol shows like it use to, and it just vibrates intermittently. I have to unplug it and power it back on for it to charge.. any help on this would be great.
Sent from my A501 using Tapatalk 2

Try stock for a few days and see if the problem persist! i would say you probably have a defective battery..I had the issue where the phone would die at full charge and never turn on again and then after a few days the battery would work again..I called Samsung and told them about my problem and they will replaced it for me

I think it's related to the mf1 rpm that is screwed up. My battery tends to hang around 23 percent and will take forever to charge, but in reality it's the reporting that is wrong but your battery is actually charging.
Sent from my SCH-I535 using Tapatalk 4 Beta

djteotancolis said:
Try stock for a few days and see if the problem persist! i would say you probably have a defective battery..I had the issue where the phone would die at full charge and never turn on again and then after a few days the battery would work again..I called Samsung and told them about my problem and they will replaced it for me
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well, it was doing it on my original battery, so i thought maybe it was gone bad, and I bought a brand new one and it still does the same thing, so i probably didnt need to spend the 42 bucks..lol

Addiso said:
I think it's related to the mf1 rpm that is screwed up. My battery tends to hang around 23 percent and will take forever to charge, but in reality it's the reporting that is wrong but your battery is actually charging.
Sent from my SCH-I535 using Tapatalk 4 Beta
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I'm gonna go total stock, take the updates, see how it goes then I will re root if that fixes it.. if not I'm going to take it to verizon and demand a new one.. lol

Skyrocket Battery - Charging Tips

I am receiving a new phone battery in the mail for my i727 since my old one won't last at all.
Do you guys have any tips for me on how to charge my battery so that I keep my charge for the longest time possible without damaging or ruining the battery in any way?

markrayski9 said:
I am receiving a new phone battery in the mail for my i727 since my old one won't last at all.
Do you guys have any tips for me on how to charge my battery so that I keep my charge for the longest time possible without damaging or ruining the battery in any way?
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Define 'won't last at all'? How much time do you get on the battery now? It rarely has anything to do with charging, unless you use some crappy charger that blasts high amperage current at it. Battery drain is almost always because of either a wakelock preventing deep sleep, or an app running in the background chewing up CPU, and thus battery. For me there were 3 culprits, 1) some chargers (specifically Apple compatible ones) cause a wakelock on 'vm_bus_present'. If you see this, reboot after charging to clear it and get a different charger. 2) Corrupt media data that causes the media scanning process to continually spin CPU. Clear data and cache for the media app. 3) Bluetooth crashes, and the you get a 'bluesleep' wakelock. Reboot until Bluetooth stops crashing, usually for me it only takes one.
CPU Spy and Better Battery Stats are your friends. See the Battery pinned topic, this is covered in much more detail there.

I'm not sure it matters about my old one.
I just need to know how to charge my new one. Everyone talks about how they charge their battery, and I want to hear how.
Sent from my SAMSUNG-SGH-I727 using xda app-developers app

markrayski9 said:
I'm not sure it matters about my old one.
I just need to know how to charge my new one. Everyone talks about how they charge their battery, and I want to hear how.
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
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I plug in my phone at night, and I unplug it in the morning. I don't think it gets any more complicated than that.

markrayski9 said:
I'm not sure it matters about my old one.
I just need to know how to charge my new one. Everyone talks about how they charge their battery, and I want to hear how.
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
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You plug it in and when it says battery full you unplug the cord.
Sent from my HTC One using Tapatalk 4

Nothing mysterious about charging a phone. Seems like there were some complex charging rituals way back when but they have since been proven BS. That being said, If you normally run your phone down by mid day because you play with it all morning no fancy charging ritual is going to help you.