Samsung Galaxy S3 charging issue

[sure why not]

Are the data pins shorted together on the 1.5A charger Samsung gave you?

 

[Nitin Manohar]

Are the data pins shorted together on the 1.5A charger Samsung gave you?

I don't know how to find that out? can you help plz?

 

[sure why not]

I don't know how to find that out? can you help plz?

With micro USB the two outside pins carry current (V+ & GND) and two of the inside pins are for carrying data.

USB 2.0 standard is for 500mA of current
USB 3.0 standard is for up to 900mA of current
When plugged into a computer one would also have a data connection for the transfer of files, pictures, etc... so the data pins remain active.

Dedicated chargers can have up to 2,100 mA of current passing through the outside wires.
Obviously your charger is not going to transfer any information...
There are some various protocols for dedicated charging ports among different device manufacturers, but having D+ & D- shorted to each other signals the device not to expect any data and to allow as much current to flow as the device can handle.

From Wiki;

Charging ports and accessory charging adapters

The USB Battery Charging Specification of 2007 defines new types of USB ports, charging ports.[57] As compared to standard downstream ports, where a portable device can only draw more than 100 mA current after digital negotiation with the host or hub, charging ports can supply currents above 500 mA without digital negotiation. A charging port supplies up to 500 mA at 5 V, up to the rated current at 3.6 V or more, and drop its output voltage if the portable device attempts to draw more than the rated current. The charger port may shut down if the load is too high.

Charging ports exist in two flavors: charging downstream ports (CDP), supporting data transfers as well, and dedicated charging ports (DCP), without data support. A portable device can recognize the type of USB port from the way the D+ and D- pins are connected. For example, on a dedicated charging port, the D+ and D- pins are shorted. With charging downstream ports, current passing through the thin ground wire may interfere with high-speed data signals. Therefore, current draw may not exceed 900 mA during high-speed data transfer. A dedicated charge port may have a rated current between 500 and 1,500 mA. For all charging ports, there is maximum current of 5 A, as long as the connector can handle the current (standard USB 2.0 A-connectors are rated at 1.5 A).

Before the battery charging specification was defined, there was no standardized way for the portable device to inquire how much current was available. For example, Apple's iPod and iPhone chargers indicate the available current by voltages on the D- and D+ lines. When D+ = D- = 2 V, the device may pull up to 500 mA. When D+ = 2.0 V and D- = 2.8 V, the device may pull up to 1 A of current.[58] When D+ = 2.8 V and D- = 2.0 V, the device may pull up to 2 A of current.[59]

If you have a DMM with some small probes you can check for continuity between the data pins.
In the diagram the unlabled pin is 'sense' and used for USB OTG.

Hope this helps.

 

[fhp3]

My S3 is a year and 1 month old (Out of warranty) and this charging issues started for me 4 days ago. I was running a custom ROM and thought that may be the cause of the problem. So I wiped everything and went completely stock. The charging issue was still there. I tried three different batteries and 3 different SAMSUNG chargers. Two were hardwired and one was a mini charger with a SAMSUNG USB cable. Same problem occurred. I can charge the batteries in a separate SAMSUNG charger with no problem at all just not in the phone.

I have always used OEM cables and chargers since I had my AT&T S2 Skyrocket. If you used a non OEM cable with that phone all sorts of stuff would happen. You could charge no problem but when you unplugged the phone it would go through its charge in a matter of a few hours. The only way to fix it was to reboot right after unplugging it or only use SAMSUNG cables and chargers. Maybe something is happening in reverse of my Skyrocket experience.

After reading this and many other threads I figured something must be wrong with the charging logic of the board or some chip went hay wire since my USB port works no problem.
As a test and out of frustration I tried an iPad charger with a non OEM cable and it worked without issues.
Next I tried the Asus charger from my Nexus 7 and that worked as well. If I go back to any SAMSUNG charger, it starts to charge then the LED shuts off after about 30 min. It would come on sporadically but never stay on for more than a few seconds. This happens without touching the phone at all. Also it would not charge with the phone completely off either.

For now I'll use a non OEM cable and charger to see what happens. The only problem is that I don't have a car charger that works yet.

 

[GSDer]

fhp3,
Very strange that so many different charger/cable combinations are not working. Perhaps the contacts in the micro-USB port on the phone are getting loose, although you say that USB functionality is unaffected.

Anyway, maybe a wireless charging solution would be a good option. (That's what I plan to do if my phone starts to crap out.)

Sent from my rooted, debloated, deodexed Sinclair ZX-80 running CM 10.2 using Tapatalk 2

 

[big_mikky]

I am not sure about the losing power, but I had the issue with the phone not recognising the charger or the mini USB when connected to the PC.

Here is what I did to fix it:

Basically, there are some small metal pins inside the mini usb port that come into contact with the pins on the micro USB charger (they are on the top side of the shelf inside the mini USB port).. sometimes they get can get an oxidised layer on them and prevent a proper connection, so I took a small needle (or anything very small and thin) and gentle scraped it up and down the contacts, not too much pressure. I then used a small toothbrush to clean out the port completely and gentle blew out any dust/particles in there.

Plugged in charger and everything worked fine.

Hope this helps someone

 

[John Ege]

I am having this issue with my G S3 and my wife's S3. The phone company can't diagnose a problem with the connection, because its intermittent, or non existent when they check. battery checks out fine. my solution was to buy a spare battery and external charger. and today, a coworked revealed he had the same problem, which I identified by watching him switch out his battery.

im hoping when i upgrade to galaxy note that this isn't a problem with that line too.

 

[GSDer]

John,
Just go with a wireless charging solution to begin with on your new phone and that'll save the wear-and-tear on the micro-USB port. You could also go with a wireless charging solution on the SGS3s and skip the upgrade until you need it.

Sent from my rooted, debloated, deodexed Sinclair ZX-80 running CM 10.2 using Tapatalk 2

 

[Myles SanDiego]

I GOT A PROBLEM ON MY s3.. EVEN I TURN IT OFF IT
ITS OPEN BY ITS OWN

 

[meyerweb#CB]

Your question really has nothing to do with this thread. I would suggest starting a new thread with a subject that describes the problem

When you do, try to explain what you mean by "its open by it's own." I'm sorry, but I don't understand what is happening.

 

[GSDer]

Sounds like Myles is saying that after pressing the Power button to turn the screen off, it turns off and then comes right back on. Probably the Power button mechanism getting gunked up or wearing out. Maybe even a new case pressing on it.

Hard to say from the information provided.

Sent from my rooted, debloated, deodexed Sinclair ZX-80 running CM 10.2 using Tapatalk 4

 

[Kemo Sabe1]

All these letters have the same problem. Everyone has replaced chargers and batteries. The problem persists. When is someone going to realize this is software related? I do know the application Jellybeans when updated messes up the phone. There has got to be an answer to this. The phone is worthless with this problem. I have no phone to use and my business depends on it. ADDRESS IT SAMSUNG!

 

[Fakhr E Alam]

All these letters have the same problem. Everyone has replaced chargers and batteries. The problem persists. When is someone going to realize this is software related?

I am not sure if it's a software related issue because I am facing the exact same problem as mentioned and I downgraded my android 4.1.2 to 4.1 and I still had the same problem. Though I agree with you that samsung should address this issue, I even sent them an email asking about the issue, those who are facing it should do the same so that it comes to their notice and try to resolve it ASAP.

 

[fyfe89]

Suffering similar issues and have tried near enough everything. I bought a new battery and a Nokia charger and that seemed to do the trick for a while but as of today I'm back at square one (11 hours of charging resulted in a charge of 0% to 10%). I have noticed that the charger sometimes sits at a slight angle when plugged into the phone and although the battery icon says the phone is charging it isn't, I wrapped the wire underneath the phone just to keep the micro usb perpendicular to the phone and have managed to get from 4% to 37% in just over an hour (this only seems to be successful when the phone is off). Will give the "wiping cache partition" solution a try later on.

 

[sure why not]

All these letters have the same problem. Everyone has replaced chargers and batteries. The problem persists. When is someone going to realize this is software related? I do know the application Jellybeans when updated messes up the phone. There has got to be an answer to this. The phone is worthless with this problem. I have no phone to use and my business depends on it. ADDRESS IT SAMSUNG!

Certainly not ALL of these posts exhibit the same problem.
What about all of those who change to a better (Blackberry) USB cable, Dedicated 2A charger, or wireless charging mod and their problems go away???

Are you saying that these people are imagining that their phone is charging and working properly now?
That broken cables, dirty contacts, 500mA 2.0 current standard, and failed microUSB ports have not been at the root of the majority of these problems?

If there was an intrinsic problem with Touch Wiz or whatever the Android build ***Everyone would have these problems out of the box***
If an individual has corrupted software on their phone it is an individual problem, not a general problem with the OS or the Skin.

There are over 50 MILLION of these phones sold.
How many stock devices have charging issues after the physical problems have been eliminated?

It sounds like you have it out for Samsung, because you sure aren't listening to the facts or reason.

 

[GSDer]

There are over 50 MILLION of these phones sold.

Unfortunately (or fortunately) not all 50 million are on Android Central, so we don't know if this is a widespread problem with phones that have passed the one year milestone.

I certainly agree that lots of the problems are due to faulty cables, chargers, micro-USB ports and even a few battery issues.

But there are some strange issues with people that have (supposedly) eliminated those factors. Until we solve one of those problems who knows what's going on...

Sent from my rooted, debloated, deodexed Sinclair ZX-80 running CM 10.2 using Tapatalk 4

 

[sure why not]

GSDer,
I agree that the Android Central Forums are not nearly a complete sample of all the gS3 phones sold worldwide.
I agree that some owners have charging problems that are not resolved with a simple change of battery, charger, cable or method.

But I don't see evidence that Samsung's software is the culprit.
That "All these letters have the same problem" nor that "this is software related"
If you download an app onto your phone and updating it screws up your phone, then it is the app (or it's compatibility) that is at fault.

If there was a 'suicide' line written into Samsung's code everyone's phone would fail at the same number of days from activated, or charging cycles, or whatever.
If the software were unstable I doubt it would always be the charging functionality. Phones would crash at random.
And, of course, Samsung or the Carrier could push a patch OTA.
If it was a problem with Android, Google could do the same...

I do wonder if wiping the phone and a clean install from backup resolves the issue in ALL cases.
THAT would prove something.
But lots of posters here state that going to their carriers store and having their phone overwritten does not solve the problem for them, or only solves it for a short time.
I don't see anything here or over at XDA that claims to have found a definitive answer.

(edit snarkiness)

 

[Indiy]

I am having the same problem all of sudden my Samsung galaxy S3 won't charge using the Samsung charger that was provided with the phone. It just began to stop working today it was confusing so, I charge my phone with a regular plain charger, I don't think it had a name but the usb portion fit perfectly and my phone charged meduim paced, not fast at all but the job is done.

 

[Jimblywee]

I don't see evidence that Samsung's software is the culprit.

If you read the many threads on this and other forums you'll see that maybe half of them report that the battery charges just fine when the phone is off. That screams 'software' to me.

 

[sure why not]

If you read the many threads on this and other forums you'll see that maybe half of them report that the battery charges just fine when the phone is off. That screams 'software' to me.

It may scream "software" but it doesn't scream OS or Skin.
I have read a LOT of threads on this issue. (all the way through)
You take one snippet of my post and use it out of context.

Like I said, there are 50 million GS3's out there...
If it were bad code in the OS or skin you would expect all of them to fail - eventually.
The poster I was replying to said it was due to an app they had updated.
How is this Samsung's fault?

Maybe they should try iOS7.

That is not on Samsung, nor Google.
In the second sentence of my reply to GSDer I say that I agree there are some charging issues that are unexplained by hardware.