Database Users

[Q] AC charging grinds phone to halt and prevents charging

I'm running:
GEN2
Rooted
ClockworkMod
Swedish Spring Android 2.2 with Gingerbread theme and circle battery
Suddenly after a few weeks of everything working fine, AC charging stopped working. USB charging still works perfectly, and when I plug the phone in it says it is AC charging, but the charge level barely changes - it can be plugged in for 12 hours and not gain or lose any charge. Also, sometimes but not always, the phone becomes very very slow, and sometimes the screen won't unlock - I have to unplug it, unlock, then plug it in again.
I've tried different chargers and cables and combinations thereof, I've tried turning USB charging off or on in Extra Settings, I've tried debug mode on USB or not, hardware acceleration on or off, I've tried charging with the phone off or on, screen on or off, I've tried charging it for 48 hours, the charge level never moves.
This is the closest thread I can find on the issue but it is a mix of problems, and they never find a reliable diagnosis or solution:
http://android.modaco.com/topic/336...rs-stopped-working-but-usb-charging-works-ok/
I don't care if it charges slowly, I'm thinking of trying to mod a USB cable to force it into USB charging mode. Anyone know how?
I far prefer this to re-installing because whenever I connect my phone to my laptop it immediately bluescreens, (despite a fresh Win7 reinstall), and I am lost on my gf's Mac.
These posts describe how to do the opposite (force AC mode) on HTCs:
http://winhlp.com/node/855
http://forum.xda-developers.com/showthread.php?t=844284&page=3
Thanks enormously for any tips
Chris

Since I lost my charger and had to use a generic micro-USB charger, I have the same problem. USB charge works fine.
May be a problem with the USB cable, have you tried using another one?
(I'm on Ginger Stir Fry, but I don't think it is ROM dependent. )

Thanks for the thoughts. I've tried different cables and chargers and combinations thereof to no avail, hence suspecting something software and looking to mod a cable to force USB mode.
Please anyone know what PINs indicate laptop USB rather than AC USB?
How does my phone know to go into the (disfunctional) AC mode?
Thanks

I think D+ and D- pins (2 and 3) are connected. You would have to mod the charger. Or just use generic USB charger, like those from dealextreme...

Nexus 4 charging AC when plugged into computer

Hi all,
all computers stopped recognizing my N4 as an usb device or android debugging device. No notifications pop up on the phone when connected too.
I tried 2 different PCs and 4 cables.
Fiddling with the phone, I discovered that it shows AC charging (in ampere app) instead of USB charging, and it's pulling 700+ mah, which I think it's a bit too high for an usb charge.
Is it an hardware problem? What can I try?
Forgot to add that I'm running stock 5.1.1, not rooted.

Attaching some screenshots

s4 i9500 Charging issue on AC (Wall Charger)

Dear Developers,
for the last 3 to 4 days i have been facing a strange issue my S4 is not charging with wall charger but it charges on laptop that is a bit slow
I couldn't understand what's the issue i was using custom rom but after this issue i revert back to Stock rom and the issue is still present. I have tried different chargers and adapters but no success.
I searched on internet and found many ppl were facing the same issue but couldn't find the solution.
- I tried Flashing the ROM again
- turning Off developers Mode help me a bit it charges for some time but again stopped charging.
I got icon of charging on screen but in actual it isn't charging.
I am guessing it's a ROM or software issue otherwise if it was hardware then it won't charge at all.
Please suggest Solution for this Plz

I don't believe software is the cause of this. You've tried multiple ROMs and all of them display the same symptoms. Also, the S4 does charge through the USB port, though slowly. That's to be expected as a USB port on a PC or laptop only puts out 500MAh of juice and does it through two of the four pins in the USB cable. Through a process of elimination, we have to rule out software here and focus on hardware.
You'll want to try a different USB cable in going from the S4 charger to the phone, if you haven't already done so. If you have and are still getting the same result, then the problem is internal to the S4 itself. The most obvious place to start looking for a problem is with the MicroUSB port. Check for signs of damage there. If there isn't any damage that you can see, then the problem is deeper within the S4, and may need to be looked at by Samsung service.

Charging extremely slow via USB not AC

A few days ago, my phone started charging very slowly. Fast charging wouldn't work. When I went into settings/battery, it says "charging via USB" instead of "charging via AC". I also have no fast charging, regardless of whether I play with the settings. I also have no OTG and my computer won't recognize my phone. I've scoured forums and found no credible answers. I have replaced my cables and brick, and I have tried it with my S6 and they work fine. I'm going to try a factory reset. Is anyone else experiencing this? And any suggestions?

abdullaha said:
A few days ago, my phone started charging very slowly. Fast charging wouldn't work. When I went into settings/battery, it says "charging via USB" instead of "charging via AC". I also have no fast charging, regardless of whether I play with the settings. I also have no OTG and my computer won't recognize my phone. I've scoured forums and found no credible answers. I have replaced my cables and brick, and I have tried it with my S6 and they work fine. I'm going to try a factory reset. Is anyone else experiencing this? And any suggestions?
Click to expand...
Click to collapse
so i have tryed replacing the usb port itself and no luck....ive also tryed new batterys. i aswell cant seem to find any luck online ...
samsung did say that my baseband version was outdated and that may fix the problem

albanianagi said:
so i have tryed replacing the usb port itself and no luck....ive also tryed new batterys. i aswell cant seem to find any luck online ...
samsung did say that my baseband version was outdated and that may fix the problem
Click to expand...
Click to collapse
There are no updates available for my device?

I know this is a old Thread but has anyone found a solution and/or cause of this problem?
I have the same problem with my Galaxy S6 (sm-920v). I get the same thing "USB Connected" (extremely slow charging) regardless of the cable and charger I use, also no OTG or Computer Connection. I tried other chargers and cables (OEM and aftermarket) that work fine on other Galaxy devices. I've tried changing the USB settings, it won't even connect to a computer in DM mode. It takes over 6 hours to charge it from 0% via USB and will just maintain a charge when using the phone. A wireless charger will cut the time in half. I'm pretty much stuck having it plugged in all the time when using it.
Any help woud be greatly appreciated.
Thanks in advance, Mike

[Help] USB not Recognized! and Phone Charging is very very slow.

I have been facing the issue of slow charging from 3 days now. It takes 9-10 hrs to charge completely. Interestingly I just plugged my phone to my PC and USB not recognized pops up every time. I tried changing USB Cables and Chargers , nothing helped. I think these two issues are closely related and some chip is blown up inside. Any idea if what could be causing this?

Use custom kernels

you find the solution ???? please help me if u can !!!

Same issue happened with me when actually Imy phone was bricked,I changed and used other usb cable,then I got solved my issue,then after 3 months,tht cable stopped to work only for my mobile (works in other mobiles still),so I have to keep changing cord n adaptor for fast charging,now iam currently using Moto turbo charging,n from 6 months it's working properly,n never use phone while charging

if pc says that the last usb you plugged is malfunction... than thats the problem with me also.. i guess phone usb port is damage some how... coz my phone also takes 5hrs to charge and pc plug say usb malfunction

You need to get your motherboard change if usb charging board is not seperate. i experienced the sam eissue on my zenfone 5, i did a thourough check, even bought its psu and relaced it. turns out its motherboard was buggy and a slight water drop on the cable mouth caused this issue. better get it replaced if its still in warranty else you will have to buy a new mobo.

jpdmostwanted said:
I have been facing the issue of slow charging from 3 days now. It takes 9-10 hrs to charge completely. Interestingly I just plugged my phone to my PC and USB not recognized pops up every time. I tried changing USB Cables and Chargers , nothing helped. I think these two issues are closely related and some chip is blown up inside. Any idea if what could be causing this?
Click to expand...
Click to collapse
I have same problem you have to change mobile usb charger connector i.e. charging port of mobile. then it will be solved.

Dude do these 3 :
1.check with another adaptor, along with ampere app make sure charging is 2A
2. Change the usb configuration, dont charge from pc it chaarges slow bcoz its DC
3. Change your rom, use custom ones or reflash whatever u r on.