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.
Related
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!
Is anybody having issues with the charging of their SGS3?
It seems that my device charges as and when it wants. I wanted to find out how wide spread the issue is and the different cases in which it does not charge.
This could possibly help find some sort of temporary resolution.
My Galaxy note is extremely temperamental when it comes to charging. It doesn't seem to like any other cable than the one that came with it. I've been through several cables trying to find another that will charge it.
Some cables said they were charging the unit (and it the meter was going up) until I unplugged the cable to find the battery level drop from 100% to 5% in a second. With another cable, the handset said it was being charged, but the screen locked out and wouldn't recognise gestures. Others just wouldn't charge and the phone didn't even recognise them. It was all very odd.
In the end I gave up and just used the stock cable. It could be a Samsung thing?!?
Zobbster said:
I unplugged the cable to find the battery level drop from 100% to 5% in a second.
Click to expand...
Click to collapse
Same for me on SGS2 (GT-I9100). Often it discharged so much, it was switched off by the battery's low-voltage-protection-circuit. Then the phone started again because it had 5V at the USB and tried charging, but couldn't because the battery was not able to power the phone until the charging process started, so I had a nice bootloop
I had to build a constant-current-circuit with a LM317 to charge the battery a bit until it could be charged by the phone again.
It seems like the only way of getting rid of this is by using the original charger..
(Would be great if Samsung could make their devices be able to run from usb-power only)
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.
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!
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.