Samsung Galaxy S II I9100 does not charge properly - Galaxy S II Q&A, Help & Troubleshooting

Few days ago my Samsung Galaxy S II I9100 stopped charging properly. If I connected the micro-USB charger, the phone just didn't charge. I tried with another charger, but this did not help. As a next step, I cleaned the micro-USB socket with compressed air and contacts with isopropyl alcohol, but still nothing. If I turned the phone off and connected the charger, instead of charging, the phone started to boot up. Often after the bootup the phone charged for few minutes. According to Battery Widget utility, the battery itself was healthy. As a next step, I made a factory reset, but this did not help. Installing the latest firmware didn't help either. Once those charging problems started, I also noticed that scrolling through messages or using the keyboard was bit disrupted and I often had to press a on-screen keyboard multiple times to print a letter. Finally I took the phone apart to inspect any visual faults, but there were none. All the connectors were properly connected and there were at least no visual signs of malfunction of electronics.
Has anyone seen such behavior? Is it possible that faulty charging module causes such behavior? I would doubt that as this charging module seems to be a fairly simple hardware detail and it's hard to see that this could cause a phone to behave like I described above

@m4rtin86 So far as i can read it, it is the Battery which doesnt want to get always charged or the charging module like you said. Maybe you can borrow a friend's s2 to see or his battery charges in your phone. If it isnt the charger/usb cable then its battery/charging module.

wulsic said:
@m4rtin86 So far as i can read it, it is the Battery which doesnt want to get always charged or the charging module like you said. Maybe you can borrow a friend's s2 to see or his battery charges in your phone. If it isnt the charger/usb cable then its battery/charging module.
Click to expand...
Click to collapse
I replaced the charging-module and phone started to charge again. However, I'm bit puzzled how such seemingly simple component could cause such behavior? All it seems to have are just micro-usb jack, microphone, few contacts for speaker, connector for antenna and some electronic components like resistors, SMD capacitors and that seems to be pretty much all. How could such a simple component cause phone to behave in such way?

@m4rtin86 I have no clue why that component behaved in such way, but weird things happen to stuff sometimes and nobody knows why and how it could happen. Maybe something was loose a bit and didn't made good contact anymore just sometimes maybe.
Its good to hear that your phone is charging normally again I hope it stays like that for the next 2 years atleast.

Related

[Q] How to fix battery over voltage?

My battery's been on the fritz for the last days now. Whenever I turn my GS2 off, it will shows tha battery charging screen, then flash to another icon that shows a battery, exclamation mark in a yellow triangle, and a thermometer. It had to plug the charger in to get it to turn on, even though battery was at 100%.
So, I decided to download Battery Doctor to check my batter stats, and it says 'Health: Over Voltage'.
Does anyone know how to fix this? Help would be much appreciated.
I have exactly the same problem. I have not found a sollution, am thinking of calling samsung and explaining the situation. I will post here if i have a sollution.
What OS version are you running?
What Kernel version are you running?
What carrier (if any) did you purchase the phone through?
I'm on 2.3.3 (KE7), using Chainfire's kernel. Phone is carrier unlocked, unbranded from clove.co.uk.
Btw, I think I may have fixed it. I discharged the battery and used a charger with a lower voltage output to get it fully charged. (Charger I used if from my spare phone, a Samsung Champ). It now says that my battery health is good.
Now, the problem is that my phone won't stay powered off when I turn it off. It will stay off for 1-2 secs and power back on. Even if I remove the battery, the phone will power on after i place the battery back without me touching the power button.
Sent from my GT-I9100 using XDA App
aridoasis said:
I'm on 2.3.3 (KE7), using Chainfire's kernel. Phone is carrier unlocked, unbranded from clove.co.uk.
Btw, I think I may have fixed it. I discharged the battery and used a charger with a lower voltage output to get it fully charged. (Charger I used if from my spare phone, a Samsung Champ). It now says that my battery health is good.
Now, the problem is that my phone won't stay powered off when I turn it off. It will stay off for 1-2 secs and power back on. Even if I remove the battery, the phone will power on after i place the battery back without me touching the power button.
Sent from my GT-I9100 using XDA App
Click to expand...
Click to collapse
I have the exact problem. Is the battery health still good? I would like to fix this by myself and not send it in and be without my GS2 for that time.
You should try this:
1. be sure, that your battery is full (charging over night)
1. run the app battery calibrator
2. unplug charger
3. drain battery all the way down till it shuts off
In this way your phone can remember what is 100 % and what is 0%
My sgs2 shows 4,194 V at 100 %
I think your stats (look into battery calibrator) said that 100% are for example 3,8 V
PS: You need root permissions
---------- Post added at 04:55 PM ---------- Previous post was at 04:49 PM ----------
Please post us your current voltage.
I have this exact problem. Battery Calibration is pointless, we all know that.
Did anyone ever find out if this is fixable, or do I have to contact Samsung for a replacement?
It's quite annoying that I can't turn off my phone, it just powers on after about 2 seconds. In addition, I never know how much juice I have left in the battery as the reported capacity can jump from 90% down to 6% in an instant. After a reboot it might go up to 12% but I can still use the phone for hours without it shutting down...
Yeah
I've been having the same problems as all above...
Galaxy S2 on Sensation rom, but its not the rom, i flashed to another and the problem still remains...
It all started with phantom charging...(charging when the charger is not even plugged in and constantly making the "charger connected" sound)
I got the phantom charging fixed by cleaning the charger port with a cotton bud and some cleaning alcohol...But now i have overvoltage...
And just like the others, it'll stay on for example 100% and if you reboot its suddenly on under 10% and slowly works its way up to 20 or 30% without even being charged.
I'm assuming the battery got messed up during phantom charging, in tthis case calibration doesnt help, nor does flashing another rom. Flashing another rom leaves the phone stuck in MTP mode therefore unable to use it as a flash drive.
A vid on youtube reccomends replacing the part of the circuit board to which the charger port is attached and as well as the battery at the same time as the battery always gets messed up with the overvoltage issue....
When i have overvoltage i cannot charge even when its under 10%, unless i leave the charger in and reboot the phone it will then charge once it comes back on and it even says GOOD HEALTH until i unplug the charger.
I'd really like a definite solution to the overvoltage issue...
Bump!
Did anyone find an answer to this problem? Mine has started exhibiting the same behaviour. I haven't been able to search out any solutions...
Cheers, PF.
EDIT: Whoops! Just realised I'd better change that signature to SGS2-able. lol
I am also seeing the same issue for the past 3-4 days, I have switched off the phone and took out the battery, planning to visit samsung support center.
I hard rebooted the phone(which reset it to factory) that did'nt help.
will update once I get more info/help from Samsung support.
Vikas
i had the same problem as you guys and i fixed it by cleaning the contacts on the phone where you connect the charger. use some cotton buds and a needle and some alcohol and clean all the contacts at the bottom of the phone (usb cable slot).
make sure phone is turned off tho whilst doing it. that fixed my over voltage issue.
Hi Guys,
I went to Samsung Mobile Support Center today, they told me that USB mini port has turned slightly green, which means that it has in contact with Water
this will not be covered under warranty and might need to be replaced with charges
Tomorrow they will tell me the exact cost.
I still believe, its not an issue of Power port but with the battery port.
will update if I am able to get it solved.
It's a problem with your usb charging port. The only way to truly fix it is to have the charging port plus circuit board replaced. Happened to me a week back and I tried virtually everything- stock roms, removed root, replaced batteries etc. None of that worked. Some posts said it was a port problem. Went to a tech guy I knew and he confirmed the issue when he disconnected the port. It was relatively cheap for me to fix but some people have climed that samsung charges a large amount to fix it. You're better off trying to get it fixed on your own. If you're on warranty, try and claim it.
Also alot of people are having this issue- yours is about the 5th topic I've seen about this problem this week
Hi Guys,
My problem is solved. Samsung support replaced charging port and the chip it was in(total cost 650/- INR, about 13$)
now phone is working as before.
i have the same problem on my gs2, so can i fixed this problem by cleaning the mini usb port?
andyyody said:
i have the same problem on my gs2, so can i fixed this problem by cleaning the mini usb port?
Click to expand...
Click to collapse
Cleaning the usb port will/might help with phantom charging , but not overvoltage.....
For Overvoltage you may need to replace the whole USB port part of the circuit board (easily obtainable on EBAY) and you have to replace the battery at the same time as well cause the battery (also easily obtainable off ebay) gets damaged with the overvoltage problem.
I have ordered both about a week ago, awaiting 3 weeks for it to arrive to my country.
Good luck with that...
Theres videos on youtube of how to do the repair for overvoltage yourself...
Will report back here if circuit replacement worked for me...
RiD123 said:
Cleaning the usb port will/might help with phantom charging , but not overvoltage.....
For Overvoltage you may need to replace the whole USB port part of the circuit board (easily obtainable on EBAY) and you have to replace the battery at the same time as well cause the battery (also easily obtainable off ebay) gets damaged with the overvoltage problem.
I have ordered both about a week ago, awaiting 3 weeks for it to arrive to my country.
Good luck with that...
Theres videos on youtube of how to do the repair for overvoltage yourself...
Will report back here if circuit replacement worked for me...
Click to expand...
Click to collapse
thank you for you explain,i want to know is it difficult to replace the circuit board by myself?
hey guys, my gs2 also have the same problem, i fixed the problem after i cleaned the usb mini port, it will not show charging whatever i haven't plugged the charger and the problem of over voltage also fixed it YEAH!!!
sorry for my poor english
andyyody said:
thank you for you explain,i want to know is it difficult to replace the circuit board by myself?
Click to expand...
Click to collapse
When you open your s2 for the first time it is tough, but after that it is very easy...
I have already opened mine before to replace the loudspeaker, so it is now easy for me.
Heres the video of how to open your s2:
youtube.com/watch?v=evDCM84xQCA
Heres the video of how to replace the charger port circuit:
youtube.com/watch?v=aChzv3IzxsU
(or do a YOUTUBE search for "Galaxy S2 USB Flex Cable Replacement ")
This video also has comments that explain the cause of this problem...!!!!!!!!!!
That is the part you need to replace, the USB FLEX CABLE...(its the ribbon cable and the board, but they call it a flex cable)
Hope they help you.
RiD123 said:
When you open your s2 for the first time it is tough, but after that it is very easy...
I have already opened mine before to replace the loudspeaker, so it is now easy for me.
Heres the video of how to open your s2:
youtube.com/watch?v=evDCM84xQCA
Heres the video of how to replace the charger port circuit:
youtube.com/watch?v=aChzv3IzxsU
(or do a YOUTUBE search for "Galaxy S2 USB Flex Cable Replacement ")
This video also has comments that explain the cause of this problem...!!!!!!!!!!
That is the part you need to replace, the USB FLEX CABLE...(its the ribbon cable and the board, but they call it a flex cable)
Hope they help you.
Click to expand...
Click to collapse
Thanks, but the problem is solved by cleaning th usb min port, i no need to replace the flex cable anymore,.

[Q] Phone Charging While Unplugged (vbus_present)

Hey guys!
I have a weird issue with my phone, and after doing a bit of research I got a bit pessimistic, so here it is:
When I unplug my phone from the charger, the phone stays in "charging" state, which means the charging icon is there, the battery stats are not shown correctly, I can't plug it into my PC via USB, etc. It also doesn't enter deep sleep, since there is a vbus_present wakelock held, which is normal for charging.
I've read that water damage can be one of the causes, and if I think of it, I did have my phone with me, while I took a long bath. While the phone didn't touch any water, the air humidity was really high , so I could blame this for the issue.
Do you have any suggestions / ideas?
Thanks!
Hello?
My phone is dying here!
Sounds like water damage to me... however sometimes, to my knowledge, the issue can be solved like the fuel_alerted wakelocks: pull battery for a while and reinsert. But I assume you already tried that, so water damage would be my best guess although air humidity shouldn't cause that...
It is the same for me when I dropped my phone into water. However, it is now normal again ( lucky me). For your case, I think it water damaged, I would suggest you dry your phone. Take out the battery, dont use phone for some hour(4-5hrs in my case), dry the phone by whatever you can( I just put in under the sun for 15mins, and put it in a bag of rice). It was 2 days since I got the problem, but now its ok. Just try it.
Hope it helps
P/s: still get some minor problem but I can bear with it though
Fixed ?
Hi,
It seams a bit too laste to answer, but it might help someone esle.
I had quite the same issue, and it seams that the solution is to clean the phone USB slot with a toothbrush...
cant post the reference url cause i'm new... so search for "galaxy s2 won't turned off"...
VBUS present wakelock caused by using Apple compatible charger
It does not look like this was ever resolved, so figured I would chime in since I have been looking at this for a while.
If you use a charger which is compatible with Apple products, it will cause the vbus_present wakelock since Apple does not adhere to USB standards and requires two of the pins to be bridged or open (can't remember which) to work for their products. However, when you charge a device that does adhere to USB standards with one of these chargers, it will cause the wakelock (on all the samsung phones I have seen, anyway).
Another downside to using an apple compatible charger is that you can never get more than 500ma out of it due to the non-standard USB connection, even if the charger is capable of 2000ma output. So you get slower charging.
When you are connected to any charger, this wakelock will be present. If you use an Apple compatible charger, it will persist after you unplug it and will drain your battery around 10% per hour since it prevents it from going into deep sleep. You can clear the wakelock by rebooting the phone or plugging it into a standard USB charger, such as a PC or Samsung charger, even for a few seconds.
You can use Better Battery Stats to see the effects of this wakelock. Note that it can take a few minutes to show up once you have unplugged from the apple charger.
Yes, this really p*sses me off. This is one of the reasons I no longer have any Apple products in my house and long since thrown away all the Apple compatible wall chargers I once had. It still comes back to bite me since I still have a couple of chargers that contain batteries to charge when you are away from a wall outlet and they both cause this. When I use them I just have to make sure I reboot afterward. The USB outlet I have installed behind the stereo in my car also causes this wakelock. I have one to replace it but have not gotten around to removing the stereo to do this yet.
The next best solution to never using an apple compatible charger at this point would be to have a kernel that addresses this and removes the wakelock after it is unplugged but I don't see this happening.
Man, I know you love your S II, but don't go taking a bath with it!
Was this recent? why don't you give the little guy a rest and leave it a day in rice, stucked inside a zip lock bag, can't hurt.
Googled this "vbus_present android battery not plugged in"
found this thread. Seems to have worked for me by simply rebooting. thx!

Battery weird - seems to be phone but no obvious hardware issue

I have a galaxy s2 and bought a new battery recently (samsung one) thinking it would solve an issue which I thought was my battery.
Its very hard to describe but will do my best (have checked other threads but nothing quite like this..):
The battery will always say charging when plugged in but will sometimes increase in charge and other times not. I can charge overnight sometimes and it will say charging 7% and in the morning be completely dead and will not even show the charging animation (I have fixed by using my girlfreinds phone to charge it a bit and then it will be fine for a bit).
I thought might be charger - but my girlfreinds s2 charges fine on it - her phone works fine on both batteries and charges both fine.
Seems to be something to do with my hardware and I thought it may be the charging port - but not sure as it does still say charging without having to wiggle or anything like that so that suggests not the port.
The other thing that suggests something other than the port is I have had a battery in my girlfriends phone with it on, then plug it in and it said charging 37%, take it out and put in my phone with it plugged in and turn the phone on and it will say charging 4%...
Does anyone have any ideas as to this? Any things to try?
Thanks heaps in advance!
Do a clean install of stock & test for a day or two, if you're already running stock skip straight to replacing the USB board/port. Given you've already replaced your battery, this is likely to be the cause of the issue. Search for KeithRoss39's guide in the General section; it's quick/easy/cheap (<AUD$10 for me) to do.

[Q] Will not boot, flickers quickly

Hello. My wife recently dropped her S2, with enough force to eject the battery. It had worked after she put it back in and all, and even called me to tell me about it. However, the battery ended up dying before she plugged in it. When plugging the phone into usb, the button lights would flicker and the battery charging icon would flash on for about a second. Rinse and repeat. If there is no battery in the phone, it just flickers the buttons, and the screen will flicker back, and just do it over and over.
The USB port on it was already really shoddy, so I bought a new ribbon and replaced it. Same symptoms. Pretty sure this is a hardware problem, although what the problem is exactly I do not know. I've already reseated all of the ribbon connections I could find. There's obvious signs of previous water damage, but it looks like very old damage. I wouldnt' be surprised if something is corroded, but the timing of this happening after it was dropped makes me think something else came loose. I just don't know what. I could potentially try to reflow the motherboard with my heat gun, but before I waste my time doing that, I was wondering if there's _anything_ else that could be causing these symptoms.
Thank you.
Over the 2-1/2+ years I have been reading this forum, I have seen a number of cases reported where the battery discharges fully and then will not recharge in the phone, while the phone exhibits symptoms similar to the ones you report. As far as I can remember, in every case the phone would boot up when a fully charged battery was inserted. And once the battery was charged, phone would then recharge the battery as long as it was not completely discharged. Not all phones behave this way. For instance, I have fully discharged my phone on several occasions without issue.
Therefore, I would first try inserting a fully charged battery to see if the phone boots up ok, and see if it will charge with a partially charged battery. Some have had to buy an external charger just for this purpose, or borrow a charged battery from another phone, etc.
creepyncrawly said:
Over the 2-1/2+ years I have been reading this forum, I have seen a number of cases reported where the battery discharges fully and then will not recharge in the phone, while the phone exhibits symptoms similar to the ones you report. As far as I can remember, in every case the phone would boot up when a fully charged battery was inserted. And once the battery was charged, phone would then recharge the battery as long as it was not completely discharged. Not all phones behave this way. For instance, I have fully discharged my phone on several occasions without issue.
Therefore, I would first try inserting a fully charged battery to see if the phone boots up ok, and see if it will charge with a partially charged battery. Some have had to buy an external charger just for this purpose, or borrow a charged battery from another phone, etc.
Click to expand...
Click to collapse
Thanks for the detailed reply. I will try to find a battery. I do have a question though. If the battery was the cause of this, should the phone not act like this if the battery was not inserted? I would expect it to boot up just fine with the wall charger plugged into it without the battery in it, but that does the same thing (minus the battery icon).
Thank you.
I'm just not sure the answer to that. I can't remember if anyone mentioned that, although as I think about it, it seems like someone mentioned that as well. Still, I think this should be the first step in trouble shooting, because if this is the issue, and the phone is otherwise fine, then you don't want to be using a heat gun on it, or any other more difficult steps until you have eliminated this possibility.
Also, you might consider sending the phone out for repair if this step does not solve the issue. Assuming you are in the USA, Mobile Tech Videos is a very reputable shop that can deal with many issues.
You may be correct on this. The battery won't even charge through the external charger (my atrix battery charges fine on it so the charger is good). New battery (even though this is new) it is.
Update: The pins on the battery were labeled wrong. The label wasn't placed in teh correct position. I looked up a pic of another battery and found the label was offset by 1 pin, so I offset the charging pins by 1 and bam, it started charging. 50% charge, popped in the battery, and boom, booted right up.
Thanks creepycrawler!

[Q] i9100 short circuit

hello,
i bought pretty beat up i9100 (it wasnt charging, i fixed it by replacing usb port in it). phone works now, but the battery acts weird, it discharges way too fast and charges way too slow, sometimes its discharging even if its connected to charger and it skips percentages. it doesnt generate too much heat. battery calibrations, apps that monitor battery usage and other crap didnt help and im running fresh and clean cm12 on it, and there is yellow triangle in boot animation (that might indicate some trouble). according to some internet tutorials i found i9100 is susceptible to short circuits and they indicate that soldering some ic on main board might fix it, but before i do something im probably going to regret i'd like to ask here how could i prove its really shorted and that the problem doesnt lie somewhere else. according to previous owner battery should be okay and phone was behaving the same even with completely new battery.
when i insert charger phone doesnt recognize its charging for about 10 secs and when i disconnect charger phone keeps showing its still charging for about a minute after disconnecting it.
many thanks for any help and/or suggestions.

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