Develop Bugs

Usb charger exploit?

I bought a battery with charger off ebay. It shipped from china, the battery charger works great and the batteries that I got perform well. My issue is the charger has a usb port on the bottom and when I plug my phone in it thinks I am connected to a computer. Could there possibly be malicious code trying to invade my phone?

vandykky said:
I bought a battery with charger off ebay. It shipped from china, the battery charger works great and the batteries that I got perform well. My issue is the charger has a usb port on the bottom and when I plug my phone in it thinks I am connected to a computer. Could there possibly be malicious code trying to invade my phone?
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The possibilities are slim to none
Sent from my Incredible using XDA App

Only if the charger was made for the CIA.
Sent from my ADR6300 using XDA App

I've heard it has something to do with the number of pins on the thing you plug into. Same thing happens to me when I plug into my car.
No need to worry about anything, though.

The cable that came with my Nexus One is now doing this. It worked fine at first with my Inc but not it does nothing but charge. Wont let me transfer anything from my comp.

Thanks guys. I read something about some energizer charger having a trojan so I thought I would ask the experts. Weird thing that happens is if it is charging a battery and I plug my phone into the usb port on it the screen goes completely unresponsive until I unplug. Guess I can't expect too much when I get a charger and two 1500mah batteries from china for $9.99 on ebay.

vandykky said:
Thanks guys. I read something about some energizer charger having a trojan so I thought I would ask the experts. Weird thing that happens is if it is charging a battery and I plug my phone into the usb port on it the screen goes completely unresponsive until I unplug. Guess I can't expect too much when I get a charger and two 1500mah batteries from china for $9.99 on ebay.
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I have the Energizer charger. Best "cheap" charger I bought.
Haven't been NetBus'd lately from it tho (yes, I'm THAT old)

When Chinese hacks me (often). I always add the words "in bed" on the end.

External battery chargers

Hey guys,
Has anyone found a charger for an external battery that works well? I'm just talking about the 2100-2300 variety. Thanks guys!
Sent from my SAMSUNG-SGH-I747 using xda premium

I'm a bit confused. Would you mean external chargers, extra batteries or http://www.amazon.com/5600mAh-Exter...-66&keywords=samsung+galaxy+s3+mobile+charger such as this? Perhaps even an extended battery...

I have two.
First us the Zagg Sparq. Doubles as both a portable battery charger and a wall charger. Looks just like the old model Apple airport express wifi routers but in black. I get about 1.5 full charges from its battery but I never really go back to full, usually just a boost to about half from empty is how I use it. Has usb ports so you need to keep a cable with it but it charges anything with a usb charge interface. Got a set of 3" cables for mini, micro, and apple dock connector to keep the mess in my bag down.
Second one is a much smaller no name device with a micro usb plug sticking out one side. Got it relatively cheap. Only has enough to charge the phone back up to about 75-85%. But it is good for an end of the day boost.
A second battery would be better in most cases but these chargers are more generic so can use them on other toys too. Bought them to get an extra day or two of power when tenting.
Sent from my SGH-I747M using xda app-developers app

This one charges phone or external battery or both and uses a regular micro usb for mains input so can be used in vehicle as well.
http://www.youtube.com/watch?v=5CyW5RSdjb0

Hey guys,
My bad for not clarifying. I'm talking about the wall charger for extra external batteries
Sent from my SAMSUNG-SGH-I747 using xda premium

I just got this one its got this one for $20 off amazon its 2600mah fits nicely in your pocket so you can charge your phone while its in your pocket. A couple of problems with it is that it only came with a USB to micro USB cable but not AC adapter. It charges my phone pretty quickly but it only charged my phone about 70% before shutting off of course I was using my phone the whole time but it still should have had more of a charge in it. Also the unit its self takes forever to charge around 6 hours! But overall not a bad buy for $20.
Sent from my SCH-I535 using Tapatalk 2

[Q] What the hell is going on with the charging??

Id like to hope im the only one whos experienced this. But whats going on with the charging? I love the dam phone but while charging it sometimes drops in percentage. Its happened in alot of situations. Stock unrooted, stock rooted, Frosty jb, and Xquizit. I try to underclock to see if that makes a difference but it gets worse. Can someone, anyone please help me out. It was even left on the charger last night and I awoke to 15%

Sounds like either a bad charger or a bad connection between phone and battery.
Sent from my SGH-T989 using xda app-developers app

Thank you. At least its possible it may be the charger and or battery and not the phone. Much appreciated.

I don't know what rom you on now, just keep as stock for now then keep checking 1 or 2 day still have problem, bring back to TMO for warranty.

Are you using the usb cable and the wall charger that come with the phone? I noticed that when I am using my other usb cable I brought from the internet to charge the phone with my PC, which only supports max 500mA current per USB port, the phone doesn't seem to be charging at all. Just like the op said, the battery percentage went down even though the phone is saying it is charging. Then I switched to the usb cable that come with the phone, and plug in to the same usb port on my pc. What you know, it is charging correctly now, the percentage went up. And it charge much faster when using the 2A wall charger that come with the phone.

I think the problem with charger
Sent from my LG-P500 using xda premium

If you are near a local T-Mobile store or distributor, why not pop in with your kit (phone, charger and cable) and do a little process of elimination to see if your problem is your phone and/or cable and/or your charger?

Ive been experiencing the same, but when using other chargers and usb cables. Weird. But it never happens with the charger the phone came with.
Sent from my SGH-T889 using xda app-developers app

Charging slow???

Out of the blue I noticed my S3 was charging very slowly, it even was losing a charge while it was plugged in while I was using it. I figure it had something to do with my custom ROM so I reflash, still same outcome. The battery was still holding a good charge, so I figured it was something else. I then went out and bought a new charger, which came with a micro usb cord to see if that helped. Plugged in the new charger while using my old micro usb cord, still same outcome. Then used the new micro usb cord and old charger, charging went back to normal, problem solved! I would of never thought that the cord would malfunction from day to day use after such a short lifespan. Moral of the story, check your cords if you experience the same problem, it could save you some time and money!

Cables do go bad. Also, check for gunk in either end of the cable or even the phone's socket. I've seen all kinds of odd problems caused by lint and gunk in cables or plugs.

Same problem here waiting for my new cables to come to see if that's it
Sent from my SPH-L710 using xda app-developers app

Hopefully it's the cord and not the charge port.
Sent from my SGH-T999 using xda app-developers app

That is why I have a couple cords always laying around. I've found that simple things as unplugging it to fast and it gets pulled wrong. Go figure.
Sent from my Freeza MD4 Stock Rooted Galaxy S3

Proper Charging Cord crucial
MiG8GT said:
Out of the blue I noticed my S3 was charging very slowly, it even was losing a charge while it was plugged in while I was using it. I figure it had something to do with my custom ROM so I reflash, still same outcome. The battery was still holding a good charge, so I figured it was something else. I then went out and bought a new charger, which came with a micro usb cord to see if that helped. Plugged in the new charger while using my old micro usb cord, still same outcome. Then used the new micro usb cord and old charger, charging went back to normal, problem solved! I would of never thought that the cord would malfunction from day to day use after such a short lifespan. Moral of the story, check your cords if you experience the same problem, it could save you some time and money!
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True story; My wife has an S3. Over the Memorial Day weekend my wife had charged her phone with a EVO charger overnight. Next morning as we were leaving for the beach her phone was DEAD. I TOLD HER TO PUT IT ON THE CAR CHARGER, NOTHING. I asked if the phone was plugged in anyway long story short phone would not charge until I took the battery out and used the factory charger two hours all was well. Careful what you use to charge your handset.:angel:

I was having this problem, but the battery is over a year old and I live in a hot part of the world. Swapped the battery for a new one and everythings back to new. Fast chargimg and 9 hours of use. So glad I didn't go ti an HTC with a sealed battery compartment.
Sent from my SPH-L710 using Tapatalk 2

I would replace the battery and charger.

I've got the same problem. But my phone sits in a hot work truck most of the day. I suspect the battery is worn out now. I've tried new cables.

You could always try a new oem battery, they're pretty cheap on eBay. Make sure you get an oem though and stay away from the cheap knock offs.
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Need Help About Charging My Phone

Hi everyone! My phone is having a problem. It was fine until today.
My phone charge EXTREMELY SLOW and decrease battery percentage sometimes. Then I used Battery Monitor Widget to check my phone and what I saw was terrible!!! The energy go into the phone was only <100 mA, while it was >200mA on my friend's Zenfone 4. Then I tested on a new battery, it still had that problem
And now, I'm wondering about this: Is my phone's charging port cause this problem???

I suppose that a bad port may be possible. How old are both batteries though? Even if you just got one, keep in mind many S3 batteries have been on the shelf for a long time. I've had 2 in the past that were bad even though they were brand new.
Sent from my SGH-T999 using Tapatalk

Try getting a 2amp charger. and a fast USB charger from ebay.

It is probably a bad port. I know the port on my phone is bad, i have to wiggle it to get it to start charging sometimes and sometimes I have to wiggle it to get it to charge faster. If it is the port, you can either try to solder a new one on, they are $5 on amazon, or pay someone to do it which can be very expensive. Or you could go with a wireless charging solution.

It's often not the port like many people think. I have several cables that will only charge if there is pressure on one side or you set it down with the cable being pulled a certain direction. Other cables work perfectly fine though. These micro USB cables go bad in this way all the time. So always be sure it's not the cable before trying to mess with the port itself.
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