Develop Bugs

[Q] Slow charging via 12v car socket?

Hi all,
With my Samsung Galaxy SII, I used to use the following 12v car socket to USB adaptor found here and the standard MicroUSB cable to charge the phone whilst using it as a sat nav.
As you can see from the specification page, the Griffin adaptor provides 5v @1amp and the Galaxy SII would fast charge as if it were plugged into an AC adaptor at home.
Works in your vehicle's 12 volt power outlet
Charge 2 USB devices at the same time
SmartFuse circuit-breaker protection means no fuses to replace
Super-compact form factor
5 watts per port (5 volts @ 1 amp)
However, the Galaxy Nexus sees it as being charged via USB and as a result, loses charge when being used as a sat nav despite being plugged in.
Does anyone know why there's a difference between the Galaxy SII and Galaxy Nexus?

Happens to me too and I have a 2.1 Amp car adapter designed to charge tablets... and it still looses charge as you use Google Maps in Navigation mode.

I'm currently on a Rezound, but i have a Belkin 2.1A USB car charger and when i plug the phone in to that with the included USB cable, it also registers as "charging USB" and charges super slow(loses charge depending on what i'm doing with the phone)....
yet if i use the same USB cable, but rather then use the Belkin charger, put it through a Power Inverter, then it registers as "charging AC" and charges the phone up in no time.
sadly i could not find any option/setting to manually switch the phone from USB to AC(or vice-versa)... just know that the phone is detecting what's being used to charge it and go from there.

you need the real deal
a 2A car charger that does not act as a USB charger
check out Deal Extreme they got many good ones for cheap

The data lines are being loaded to fool the phone into thinking it's connected via USB.
You need to cut your USB cable and disconnect the two data lines.
But AllGamer's solution is probably easier.

an alternative would be to buy a USB charging cable only, without the extra wires
but now in days those are extremely hard to find
back in the Treo days, it was the opposite, very easy to find charging USB cables, but hard & expensive to find sync USB cables
LOL such an irony

If you already have a charger, you can also get one of these: http://www.dealextreme.com/p/usb-data-charging-extension-cable-for-samsung-p1000-black-91141

gokpog said:
If you already have a charger, you can also get one of these: http://www.dealextreme.com/p/usb-data-charging-extension-cable-for-samsung-p1000-black-91141
Click to expand...
Click to collapse
yup, some guy pointed that out in the SGS2 forum as well
it seems to be a good idea
i've yet to order one of those to try and see if they really do what it advertises

Sorry to kind of hijack the thread, but how would this charger do? (Can't link yet, but if you Google "Micro USB In Car Charger Argos" it is the first link.

HooloovooUK said:
The data lines are being loaded to fool the phone into thinking it's connected via USB.
You need to cut your USB cable and disconnect the two data lines.
But AllGamer's solution is probably easier.
Click to expand...
Click to collapse
How come it charged via A/C with the exact same setup on the Galaxy SII?
I think it's the other way around, the two data lines need to be shorted in order to trick the phone that it's connected to an A/C charger.

A kernel developer for the HTC Incredible has a patch to 'fast charge' the phone on <1amp chargers. I'm sure a GN developer will do the same here.

Reynaldo28 said:
Sorry to kind of hijack the thread, but how would this charger do? (Can't link yet, but if you Google "Micro USB In Car Charger Argos" it is the first link.
Click to expand...
Click to collapse
hmm... i found what you are saying, i doubt it
there's no detailed specification there
i'm using this one http://www.dealextreme.com/p/car-ci...-htc-sony-ericsson-blackberry-dc-10-30v-73858

AllGamer said:
you need the real deal
a 2A car charger that does not act as a USB charger
check out Deal Extreme they got many good ones for cheap
Click to expand...
Click to collapse
i found 2 that were 2000mA(2A) on that site but they don't specify if they'll register as "charging USB" or "charging AC".
[EDIT]: and i just noticed your post above mine right after i replied, but that kind of car charger you're using is different from the ones we want to use. we want to just be able to use a standard micro USB cable and plug it into one of those micro USB charger dongles.

AllGamer said:
hmm... i found what you are saying, i doubt it
there's no detailed specification there
i'm using this one *can't quote link*
Click to expand...
Click to collapse
Thanks, I guess I wont get that one then. Is there anything specifically I should be looking for when buying?

Reynaldo28 said:
Sorry to kind of hijack the thread, but how would this charger do? (Can't link yet, but if you Google "Micro USB In Car Charger Argos" it is the first link.
Click to expand...
Click to collapse
Hard to say since it has no current rating.
But it's more than likely a crap one limited to 1000mA. And in my own testing, they usually fall over at around 500mA and don't get anywhere near their rating.
The good ones that do 2100mA (commonly labelled iPad chargers) are £10-20.
I've struggled so much trying to get a decent car charger that I eventually just bought an inverter and use my mains charger. It's the only one beefy enough to power my phone while running satnav. My current phone is a three year old HTC Touch Pro. I can only imagine the Nexus will be even more thirsty.

AllGamer said:
yup, some guy pointed that out in the SGS2 forum as well
it seems to be a good idea
i've yet to order one of those to try and see if they really do what it advertises
Click to expand...
Click to collapse
They do.
I'm charging my Galaxy S and my Tab 10.1 for a long time now with one of those.

Reynaldo28 said:
Thanks, I guess I wont get that one then. Is there anything specifically I should be looking for when buying?
Click to expand...
Click to collapse
on the output you should see:
2A or 2.1A sometimes referred to as 2000 mAh or 2100 mAh
and 5V
don't get anything higher than 5V else it will damage your phone

Mekrel said:
How come it charged via A/C with the exact same setup on the Galaxy SII?
I think it's the other way around, the two data lines need to be shorted in order to trick the phone that it's connected to an A/C charger.
Click to expand...
Click to collapse
Possibly. Or the Nexus is more picky about obeying USB standards.

voxigenboy said:
[EDIT]: and i just noticed your post above mine right after i replied, but that kind of car charger you're using is different from the ones we want to use. we want to just be able to use a standard micro USB cable and plug it into one of those micro USB charger dongles.
Click to expand...
Click to collapse
you need a modified cable or what gokpog suggested for it to work, else it thinks you are on USB and it slows charges
i have this one too http://www.dealextreme.com/p/designer-s-car-cigarette-powered-dual-usb-adapter-charger-72932
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for the same reason i don't use it often, because it doesn't charge fast enough without a modified USB cable

HooloovooUK said:
The data lines are being loaded to fool the phone into thinking it's connected via USB.
You need to cut your USB cable and disconnect the two data lines.
But AllGamer's solution is probably easier.
Click to expand...
Click to collapse
rather then mangling the USB cable, there's a site here that explains how to just short out the data connectors inside the USB dongle itself... it helps to speak german, but google translate is somewhat helpful:
http://www.pocketpc.ch/htc-hd2-sons...tunen-hoehere-ladestroeme-akku-laed-auto.html

On Hold: [DIY] [WIP] - USB On The Go (OTG) Cable

** Yes I know this cable can be bought for cheap but I'm the type who'd rather build it myself, thanks. **
* Will update once I spec the proper gnex otg requirements. *
Cables used
- Generic micro USB cable
- USB extender
Tools
- leatherman skeletool cx
- mastercraft folding blade
- modeling tweezers and tape
- mastercraft soldering station
- rosin core electrical solder
- electrical tape
- modeling cement
1. Slice open micro USB head
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2. Fix/solder connections and short pins 4 and 5
Sent from my SAMSUNG-SGH-I717 using xda premium

>Fix/solder connections and bridge pin 4 and 5
Do you mean just short pin 4,5 together?

Does otg work on the nexus?
Sent from my Galaxy Nexus using XDA

mastermindx85 said:
Does otg work on the nexus?
Sent from my Galaxy Nexus using XDA
Click to expand...
Click to collapse
sure!

So you are making an OTG cable not an adapter?
HMM interesting

davidrules7778 said:
So you are making an OTG cable not an adapter?
HMM interesting
Click to expand...
Click to collapse
Lols I should look into this more. It's primarily for my gnote and I admit I didn't check the gnex OTG requirements beforehand.
Either way, I can build another one tailored for the gnex.
Sent from my SAMSUNG-SGH-I717 using xda premium

matika said:
>Fix/solder connections and bridge pin 4 and 5
Do you mean just short pin 4,5 together?
Click to expand...
Click to collapse
My terminology was off and thanks, shorting is the correct term.
Sent from my SAMSUNG-SGH-I717 using xda premium

So ... umm, you know you can buy one off eBay for $2 + free shipping from Hong Kong right?
Sent from my Galaxy Nexus using XDA

zuberio said:
So ... umm, you know you can buy one off eBay for $2 + free shipping from Hong Kong right?
Sent from my Galaxy Nexus using XDA
Click to expand...
Click to collapse
Sigh not this again. Yeah I know it's cheap and I can order but I'd rather make one. There are people out there who would rather build their own.
Sent from my SAMSUNG-SGH-I717 using xda premium

"Sigh"? Your attitude is unbecoming. I simply stated the fact in the form of a polite question. Additionally, I stated the fact in this thread because no-one else has.
And as for your "There are people out there who would rather build their own" statement:
The GNex dock I built for myself
The GTab10.1 USB Universal Charging Adapter I built for myself
jasg001 said:
Sigh not this again. Yeah I know it's cheap and I can order but I'd rather make one. There are people out there who would rather build their own.
Sent from my SAMSUNG-SGH-I717 using xda premium
Click to expand...
Click to collapse

zuberio said:
"Sigh"? Your attitude is unbecoming. I simply stated the fact in the form of a polite question. Additionally, I stated the fact in this thread because no-one else has.
And as for your "There are people out there who would rather build their own" statement:
The GNex dock I built for myself
The GTab10.1 USB Universal Charging Adapter I built for myself
Click to expand...
Click to collapse
Sir, it is never my intention to be hostile or unbecoming. I have this same thread posted in GNote accessories and the amount of posters who remind me that the cable can be bought for cheap is alarming.
I know it can be bought for cheap but I'd rather build it my own.
So apologies if I may have offended you. Peace.
Sent from my SAMSUNG-SGH-I717 using xda premium

jasg001 said:
Sir, it is never my intention to be hostile or unbecoming. I have this same thread posted in GNote accessories and the amount of posters who remind me that the cable can be bought for cheap is alarming.
I know it can be bought for cheap but I'd rather build it my own.
So apologies if I may have offended you. Peace.
Sent from my SAMSUNG-SGH-I717 using xda premium
Click to expand...
Click to collapse
Ok, now that I know the back story I understand the 'here we go again' part. I also get how it can be frustrating when people post the same question over and over again in a thread.
I apologize for my harsh response and applaud your humility.
If I may suggest one thing, perhaps adding a note to your first post, with regards to knowing about the cheap/easy eBay route, would minimize future pestering on this thread.
And as a hopefully helpful piece of info - my working gnex otg cable was billed to also work with the sgsII phone. So their XDA forum may contain the info you need to finish your project.
Best of luck.
Sent from my Galaxy Nexus using XDA

zuberio said:
Ok, now that I know the back story I understand the 'here we go again' part. I also get how it can be frustrating when people post the same question over and over again in a thread.
I apologize for my harsh response and applaud your humility.
If I may suggest one thing, perhaps adding a note to your first post, with regards to knowing about the cheap/easy eBay route, would minimize future pestering on this thread.
And as a hopefully helpful piece of info - my working gnex otg cable was billed to also work with the sgsII phone. So their XDA forum may contain the info you need to finish your project.
Best of luck.
Sent from my Galaxy Nexus using XDA
Click to expand...
Click to collapse
Appreciate it man, thanks!
Sent from my SAMSUNG-SGH-I717 using xda premium

Not sure if you want the input, but I've also found this method to work (probably) just as well. Then again, I haven't done the method you've posted and therefore can't compare which is easier.
It should be noted that for the method I linked to, instead of just cutting the cable in half, I sliced open the cable sheathing along its length (about 2-3 inches), then cut only the white and green wires, shorted them on the micro usb end (as per the directions), and viola! Just wrapped the shorted wires in a tiny bit of electrical tape, pushed the wires back in, and wrapped more electrical tape around the slice.

squiddy20 said:
Not sure if you want the input, but I've also found this method to work (probably) just as well. Then again, I haven't done the method you've posted and therefore can't compare which is easier.
It should be noted that for the method I linked to, instead of just cutting the cable in half, I sliced open the cable sheathing along its length (about 2-3 inches), then cut only the white and green wires, shorted them on the micro usb end (as per the directions), and viola! Just wrapped the shorted wires in a tiny bit of electrical tape, pushed the wires back in, and wrapped more electrical tape around the slice.
Click to expand...
Click to collapse
Thank you, I just had a look and this does help. Appreciate it!
Sent from my SAMSUNG-SGH-I717 using xda premium

I don't understand what you are doing. Is the idea of the project to use an USB cable to make an USB cable?

2LoT said:
I don't understand what you are doing. Is the idea of the project to use an USB cable to make an USB cable?
Click to expand...
Click to collapse
He's making his own OTG USB Host cable using two standard (find them anywhere) USB cables.

zuberio said:
He's making his own OTG USB Host cable using two standard (find them anywhere) USB cables.
Click to expand...
Click to collapse
Oh, so what he did was taking a micro-USB / micro-USB cable + standard USB extender cable and make one micro-USB / standard USB cable?
Ok, I wonder if this hand made cable is reliable and durable. It would be too bad if there is any indirect damage due to cable quality.
I once, bought a cheap USB cable in a dollar store, just b/c it was $1 and I like its blue color. Since that day, I began to have disconnection of USB drive, drive took longtime to be recognized by the OS, and finally a serious disk corruption. Then I finally found out it was the cable. Since that day, I only bought good quality cable and alwasy verify them carefully.

2LoT said:
Oh, so what he did was taking a micro-USB / micro-USB cable + standard USB extender cable and make one micro-USB / standard USB cable?
Ok, I wonder if this hand made cable is reliable and durable. It would be too bad if there is any indirect damage due to cable quality.
I once, bought a cheap USB cable in a dollar store, just b/c it was $1 and I like its blue color. Since that day, I began to have disconnection of USB drive, drive took longtime to be recognized by the OS, and finally a serious disk corruption. Then I finally found out it was the cable. Since that day, I only bought good quality cable and alwasy verify them carefully.
Click to expand...
Click to collapse
It's not clear to me what he did because he did only one end of the cable ‚at least that what the pic’s were showing . The easiest way to do it is to get a standard micro USB to USB cable ( like the one you use for charging) , then you have to :
1- connect pin #4 to pin # 5 on the micro USB side . ( like how it was explained in the first post)
2- then you cut the other end of the cable which is the male USB and replace it with a female USB sockect . You can use any old USB 2.0 from you old PC or USB extension cable.

snooker15 said:
It's not clear to me what he did because he did only one end of the cable ‚at least that what the pic’s were showing . The easiest way to do it is to get a standard micro USB to USB cable ( like the one you use for charging) , then you have to :
1- connect pin #4 to pin # 5 on the micro USB side . ( like how it was explained in the first post)
2- then you cut the other end of the cable which is the male USB and replace it with a female USB sockect . You can use any old USB 2.0 from you old PC or USB extension cable.
Click to expand...
Click to collapse
Oh Ok make sense now. The confusion was my own ignorance. I didn't understand the meaning of OTG cable and thought it was a normal micro-USB cable.
So does that mean the Galaxy Nexus support USB Host mode? Is custom ROM required? If yes which one? And what kind of devices could the GNex use via this OTG cable? External SATA drive? Webcam?
Thanks for any clarification.

[MOD] T-Mobile Note 2 wireless charging mod

This is a fork of the original N7100 Note 2 wireless mod thread found here:
http://forum.xda-developers.com/showthread.php?t=1951493
The purpose of this thread is to determine why the wireless charging pins on the T-Mobile Galaxy Note 2 (SGH-T889) are not working after installing the MOD above.
Please view the thread above for more details about the original MOD, and to see what you need to do first in order to continue with the work around below.
Updated method on 8-5-2013: Thanks to SGBE
The updated method has a better solder point. See that thread OVER HERE.
Results:
The Work Around: (verified working on multiple devices)
We have a mod to make wifi charging work! Regardless if the T-Mobile GN2 is missing hardware or not, the work-around is a low cost (free?) alternative to get wifi charging working. Our work around involves soldering a small wire to a tiny point on the micro usb board. You should be able to solder a very small connection (about the size of a pen tip) before attempting this.​The mod/workaround below is verified working with the stock charger and stock kernel. <- Pay attention to that last bit.
Workaround Known Issues:
Some kernels have a charge rate which is set too high for the PALM PRE Touchstone to work with. Likewise, some non-oem chargers can not deliver enough amperage to continuously charge the device wirelessly through the Touchstone. Therefore, if you have any problems (disconnect/reconnect proble), be certain that you are using a stock charging rate (kernel controlled) and a stock Galaxy Note 2 Charger (2,000mA). If you are still having problems check your mod for trouble, and finally post up and maybe someone can help you.
The Mod / Workaround:
(also attachment #3 on the list below)
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The full work around post is on page 3.​
New Information:
If you have new information on a hardware or software fix then it will be added here. Until that time, proceed with the workaround at your own risk. Once again, the work around instructional image is HERE.
WARNING: What was claimed to be a fix in the section below did not work, and ultimately people wasted money on bogus hardware. It is here for historical reference.
The Fix
You may need to purchase some missing hardware.
See page 7 for details (you need to replace the flex cable and micro-usb board): http://forum.xda-developers.com/showpost.php?p=34380437&postcount=65 The SKU number for the board is MBRPSS964.
(the false wifi charging image is only attached for historical reference)
Picture legend:
Sprint GN2 chip (the chip is missing on T-Mobile's version)
Sprint GN2 pin pads
Wifi Charging work around instructions
Completed work around example.
alternate view of work around charging pin
alternate view of work around +5vdc source
Picture of the wi-fi fix working (reported that this may be a fake!)
Older info:
Some steps that I've personally done:
Completed the wireless mod above, confirmed wireless voltage reading of 5.56vdc.
Tested continuity between USB positive, and wireless positive - no connection.
Tested continuity from the negative wireless charging pin to the negative USB, SIM slot, various screws - they are connected.
Jumped the positive post on the USB to the wireless charging positive pin, the phone charges but is not practical to have a wire hanging out of the USB port.
I plan to pull apart the phone and check the paths from the positive and negative ports on the wireless pins. Attached is a picture from a SPRINT GN2 that does not have the pins, but supposedly works for charging once contact is made with the pads. I'm going to be using this to compare the circuit against my T-mobile version.

I hope you find something with this in the next few days when the full dis-assembly takes place

vinas1 said:
Tested continuity between USB positive, and wireless positive - no connection..
Click to expand...
Click to collapse
Now this makes sense. Because if both wireless and usb charging connections were directly connected together, the phone would have no way of knowing which charging system you were using. But we know from the tests on the international version that it does know. So this in no way tells us that positive is not connected at all.
Even though the phone doesn't detect wireless charging at this time in software, has anyone tried leaving it on the wireless charger to see if it still charges the battery?

xamindar said:
Even though the phone doesn't detect wireless charging at this time in software, has anyone tried leaving it on the wireless charger to see if it still charges the battery?
Click to expand...
Click to collapse
I did this too, and waited for a while (waiting for the battery to drain on this phone is like trying to suck the ocean dry) - after a long time of playing video it dropped by 1% while on the wireless charger.

vinas1 said:
I did this too, and waited for a while (waiting for the battery to drain on this phone is like trying to suck the ocean dry) - after a long time of playing video it dropped by 1% while on the wireless charger.
Click to expand...
Click to collapse
So wait....does the T-Mobile version of the Note 2 actually charge on the wireless charger? or does it NOT charge?

elite-fusion said:
So wait....does the T-Mobile version of the Note 2 actually charge on the wireless charger? or does it NOT charge?
Click to expand...
Click to collapse
It does NOT charge...
Sent from my SGH-T889 using Tapatalk 2

farfromovin said:
It does NOT charge...
Sent from my SGH-T889 using Tapatalk 2
Click to expand...
Click to collapse
Got it. Well I hope the OP can figure something out Would be great feature to have the T-Mobile have it.

elite-fusion said:
Got it. Well I hope the OP can figure something out Would be great feature to have the T-Mobile have it.
Click to expand...
Click to collapse
Yeah, I dont see any options other than soldering to the micro usb. It wont register as "wireless charging", but it'll work.
Sent from my SGH-T889 using Tapatalk 2

Well that would be the last resort of course, but I hope that some dev or vinas1 can figure something out at least, this is one of the best features in my opinion

Subscibing... Stupidly ordered a wireless charging kit for the 7100 ASSuming that it would work for the tmob gn2, then noticed this thread ... DOH

Turbo4V said:
Subscibing... Stupidly ordered a wireless charging kit for the 7100 ASSuming that it would work for the tmob gn2, then noticed this thread ... DOH
Click to expand...
Click to collapse
You and me both. I guess I should have known better from the past. At least the parts on amazon are rather cheap.

Turbo4V said:
Subscibing... Stupidly ordered a wireless charging kit for the 7100 ASSuming that it would work for the tmob gn2, then noticed this thread ... DOH
Click to expand...
Click to collapse
Sounds like a lot of us did the same thing. Knowing that, any folks who can test with their modded or kit wireless will help speed up the research for everyone! I'm hopeful at this point, but have not had a chance yet to do a tear down. Been working late hours this week but I should have a chance to disassemble the Gn2 this weekend for sure. So far the plan is to do a visual inspection of the wireless charging circuit and compare it to the sprint pictures in the OP. I'm guessing that a bypass is in order and it may be as simple as using some foil tape or conductive marker; but that's all speculation at this point. :good:

KittyFae said:
You and me both. I guess I should have known better from the past. At least the parts on amazon are rather cheap.
Click to expand...
Click to collapse
+1
i ordered note 2 and wireless charging items (from amazon) the same time. I should've read it in detail. sighhhhhhhhh , cheaper to buy international note 2 also sighhhhhhhhh

seems like it may be hardware related, if you look to the left of the pins, there is something attached on the sprint board that is missing on ours i will circle it in the picture

perryh1 said:
seems like it may be hardware related, if you look to the left of the pins, there is something attached on the sprint board that is missing on ours i will circle it in the picture
Click to expand...
Click to collapse
The pic is T mobile G2 right? Are you still going to try and see it will charge or not?

perryh1 said:
seems like it may be hardware related, if you look to the left of the pins, there is something attached on the sprint board that is missing on ours i will circle it in the picture
Click to expand...
Click to collapse
I don't doubt your info, but it seems weird to me that other carriers (sprint specifically I think) can't access their pins, but would have added hardware that would make the phone capable of wireless charging, and we have access to the pins, but lack the hardware capability to take advantage of them.

perryh1 said:
seems like it may be hardware related, if you look to the left of the pins, there is something attached on the sprint board that is missing on ours i will circle it in the picture
Click to expand...
Click to collapse
I agree. I got a chance to take some macro shot of this with my DSLR. Pics attached.

I have a wind mobile note 2. Identical to the tmobile version. I did poke around with my multi meter and couldnt find the positive charging pin connected to anything. Just to be clear im no expert I just took my phone apart so it may help others figure this out. Especially since I already ordered the palm touch stone stuff lol
Sent from my SGH-T889V using xda premium

As it stands now, I jumped the USB 5vdc internally with a tiny wire, over to the wireless positive pin. It's working, although it was a tough mod. But it is totally internal so I guess this will have to do for now. So I have wireless charging (kind of, it works teh same as USB) on the T-mobile Note 2 now. If anyone wants to do the same thing, post up a pic of the board by the USB plug and I'll label the connector that you can use for the 5vdc source. The reason it's a tough mod is because you have to solder a small connection to the board under the capacitive touch buttons. It took me about 4 hours to find a good power lead on the board and make it all work internally!

vinas1 said:
As it stands now, I jumped the USB 5vdc internally with a tiny wire, over to the wireless positive pin. It's working, although it was a tough mod. But it is totally internal so I guess this will have to do for now. So I have wireless charging (kind of, it works teh same as USB) on the T-mobile Note 2 now. If anyone wants to do the same thing, post up a pic of the board by the USB plug and I'll label the connector that you can use for the 5vdc source. The reason it's a tough mod is because you have to solder a small connection to the board under the capacitive touch buttons. It took me about 4 hours to find a good power lead on the board and make it all work internally!
Click to expand...
Click to collapse
Please do. I might do the same thing... I have lots of touchstones and a couple Note2's that need some inductive lovin'!
Sent from my SGH-T889 using Tapatalk 2

[Q] LTE Galaxy Nexus not charging, even after replacing USB port

My phone stopped charging, even though it would say it was charging and the battery icon indicated it was charging. I tried using a different charger and even bought a new battery. Those did not work. I then did some research and found out about the USB port problems with this phone and ordered a replacement cable. I installed the new cable and am still experiencing the same problem. Unfortunately, I am just outside the warranty period and I'm lost on what the issue could be. Anyone with a better understanding of these things have any ideas? Thanks.

You Tube!
falord said:
My phone stopped charging, even though it would say it was charging and the battery icon indicated it was charging. I tried using a different charger and even bought a new battery. Those did not work. I then did some research and found out about the USB port problems with this phone and ordered a replacement cable. I installed the new cable and am still experiencing the same problem. Unfortunately, I am just outside the warranty period and I'm lost on what the issue could be. Anyone with a better understanding of these things have any ideas? Thanks.
Click to expand...
Click to collapse
I had the same issue, theres great you tube video's on how to replace the usb port...or you could go the other way which is buying a charging dock and transferring files with air droid....but its so easy to replace and so cheap, if I can do it so can you.

trook said:
I had the same issue, theres great you tube video's on how to replace the usb port...or you could go the other way which is buying a charging dock and transferring files with air droid....but its so easy to replace and so cheap, if I can do it so can you.
Click to expand...
Click to collapse
I already replaced the usb port. The new usb port wasn't charging either. I guess it's possible that the new usb port was defective, but that is unlikely. What else could it be, the motherboard?

falord said:
I already replaced the usb port. The new usb port wasn't charging either. I guess it's possible that the new usb port was defective, but that is unlikely. What else could it be, the motherboard?
Click to expand...
Click to collapse
I already replaced the usb port too and the new usb port wasn't charging either....any help? I'm afraid the problem could it be with the motherboard...

Hi,
I had the same problem of ghost charging, it started with phone not charging when connected to charger and then randomly showing charging...
Now discovered it causes vbus_tuna_otg wake lock, resulting in high system usage in settings> battery and not letting phone go to deep sleep, causing battery drain.
Sent from my Galaxy Nexus using Tapatalk 2
Sent from my Galaxy Nexus using Tapatalk 2

hardikjakharia said:
Hi,
I had the same problem of ghost charging, it started with phone not charging when connected to charger and then randomly showing charging...
Now discovered it causes vbus_tuna_otg wake lock, resulting in high system usage in settings> battery and not letting phone go to deep sleep, causing battery drain.
Sent from my Galaxy Nexus using Tapatalk 2
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
Do you have any idea how to fix this?

Re: |FIX|Ghost Charging Problem
No bro, that's why am asking here... reading all other threads, either u clean out the port or push the tongue upwards or keep using only original charger and it fixes itself...
An trying to use original charger only lets see what happens
Sent from my Galaxy Nexus

Adding in a +1 from me here, had the same charging issue, replaced the PCB today and it STILL won't charge.
Not sure what the hell is next here, throw it at a wall and hope for the best?

ildogiv agony
Dicko21 said:
Adding in a +1 from me here, had the same charging issue, replaced the PCB today and it STILL won't charge.
Not sure what the hell is next here, throw it at a wall and hope for the best?
Click to expand...
Click to collapse
I'm having the exact same issue and replaced the USB port.

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I have the exact same issue. My GNEX shows the charging symbol in the notification bar and will connect to a PC but will not charge. In the battery menu it says not charging. I replaced the USB board and nothing changed.

wilhja said:
I have the exact same issue. My GNEX shows the charging symbol in the notification bar and will connect to a PC but will not charge. In the battery menu it says not charging. I replaced the USB board and nothing changed.
Click to expand...
Click to collapse
I hope you're able to figure something out. My GNex is still out of commission. I moved to a Note 2 for my phone, but the GNex would make a great upgrade for my wife iPhone 4.

i went through this issue for 3 weeks before i realized that the usb cable that came with my phone was the culprit. i didn't think that it was the cable itself; since i had no issues with that cable connecting to my laptop. and well it also showed a charging state when it was hooked up to my car, AC outlet and the computer itself. i did have a spare usb micro charging cable in the car, but never used it. so i switched to this unused usb cable, and the charging resumed normally. in fact it chaged correctly within an hour.
to prove that it was the cable, i tested the 'bad' cable again over the next couple of days. it would charge slowly..at almost a trickle. on the third day, i went back to the new cable, and the phone charged quickly and normally.
i had already ordered a new battery, and a new usb charge port..but it looks as if those will not be used now-

134k said:
i went through this issue for 3 weeks before i realized that the usb cable that came with my phone was the culprit. i didn't think that it was the cable itself; since i had no issues with that cable connecting to my laptop. and well it also showed a charging state when it was hooked up to my car, AC outlet and the computer itself. i did have a spare usb micro charging cable in the car, but never used it. so i switched to this unused usb cable, and the charging resumed normally. in fact it chaged correctly within an hour.
to prove that it was the cable, i tested the 'bad' cable again over the next couple of days. it would charge slowly..at almost a trickle. on the third day, i went back to the new cable, and the phone charged quickly and normally.
i had already ordered a new battery, and a new usb charge port..but it looks as if those will not be used now-
Click to expand...
Click to collapse
I wish the cable was the culprit, but I've got tons of chargers and micro USB cables I tested it on to no avail.

Bonjourmate said:
I wish the cable was the culprit, but I've got tons of chargers and micro USB cables I tested it on to no avail.
Click to expand...
Click to collapse
I've tested different cables, adapter, and batteries. I have taken apart the entire phone and cleaned connections and cables. Nothing makes a difference.
The only thing I have noticed, and maybe someone can help here, is that under the main board on the top left side of the device there is a bank of gold components. One of mine is black in the middle. It looks like it could be a burn mark but could just be black marker. Has anyone noticed this on a device with this problem or a device that works? I haven't been able to find an image online.

I've seen several posts with users having this same exact issue. I'm pretty much convinced that it is unfortunately prob a hardware issue...Jus my opinion tho.
Sent from my Galaxy Nexus using xda premium

bama17 said:
I've seen several posts with users having this same exact issue. I'm pretty much convinced that it is unfortunately prob a hardware issue...Jus my opinion tho.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
I spent the day online and on the phone with Samsung. They recognize that it is a problem with the main board since I have already replaced the USB port, but say my only option is to send it in for repair and pay out of pocket.
Its definitely not worth it to send it in so I'm still looking for other options.

Review of MHL micro-usb to HDMI adapter w/remote and lots of pics!!!

This is a review of MHL (Mobile High-Definition Link) micro-usb to HDMI adapter with a remote: http://www.tvc-mall.com/details/MHL...TV-Adpater-Cable-with-Remote-Control-PCA-380/ and High Speed HDMI v1.4 male-to-male cable: http://www.tvc-mall.com/details/V1....XBOX360-Bluray-Disc-HDTV-DVD-Black-PCA-4196D/
If you guys think this is going to be just another HDMI adapter you have seen so many times in the forum - it's not! Typical adapters have a small converter unit with a male HDMI connector, micro-usb power input, and a cable with micro-usb connector going to your phone. Sure it works, but if you to connect it to your TV you have to fumble around to plug it in in the back panel connecting all the wires in blind or get female-to-male extension cord, and also once you connect the phone - you have to control it by going over to tap that pause button. Well, this MHL adapter got a few bonuses to make it unique.
The main unit is your typical converter which has micro-usb power input, extension cord with micro-usb connector going to the phone, and HDMI connector which is actually female instead of typical male. I think its actually to the advantage because male-to-male HDMI cables are more common than male-to-female extension chords. If you already have one, then you have nothing to worry about, but if you don't I included in my review such high speed cable (v1.4) which is of a fantastic quality, high durability, gold-plated connectors, and for $3 from tvc-mall - its a great value. The micro-usb connector going to the phone is actually 5-pin connector to make this adapter more universal with other phones. But have no worry if you have S3/N2/S4 with 11-pin micro-usb connector. In the package also included a very short 5-pin to 11-pin adapter which seamlessly integrates with a connector, just leave it on since we need to use it with Note 2. You will need to connect power source to keep it happy which also chargers your phone, although as you can see from the pictures recognized as USB source rather than AC (typical for these adapters). Of course, the big bonus in here is a remote control!!! You get all your typical Android control buttons, a separate play/pause/stop, and directional navigation buttons with ok/enter. When you sitting on the couch away from your TV where the phone is connected, to be able to control video stream or navigation is priceless!
Overall, both the adapter and cables (if you don't have one already) are the great value and with a bonus of remote control - make a killer combination for connecting your phone to TV and being able to control it from a distance. I personally was very happy with this order from tvc-mall.
Here are the pictures.
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did you get it to work without placing the device in airplane mode? i noticed it didnt work well unless in that mode....
Sent from my SGH-T889 using XDA Premium HD app

silentnixon said:
did you get it to work without placing the device in airplane mode? i noticed it didnt work well unless in that mode....
Sent from my SGH-T889 using XDA Premium HD app
Click to expand...
Click to collapse
No airplane mode. Worked as is.

Are you running a stock ROM?
vectron said:
=
Overall, both the adapter and cables (if you don't have one already) are the great value and with a bonus of remote control - make a killer combination for connecting your phone to TV and being able to control it from a distance. I personally was very happy with this order from tvc-mall.
Click to expand...
Click to collapse
I assume you are not running CyanogenMod or any AOSP-based ROM, because AFAIK, they don't work with MHL/HDMI output. Are you running a stock Samsung ROM?
Thanks much!

Is your TV seeing 720p from the combo?
Sent from my SGH-T889 using Tapatalk 2

I'm stock, not rooted.
TV should see 720p from the phone. In my particular setup I have an old big screen Sony tube TV without hdmi, so I'm using hdmi to AV converter and because of old 4:3 resolution everything gets a bit messed up but I'm not complaining

vectron said:
I'm stock, not rooted.
TV should see 720p from the phone. In my particular setup I have an old big screen Sony tube TV without hdmi, so I'm using hdmi to AV converter and because of old 4:3 resolution everything gets a bit messed up but I'm not complaining
Click to expand...
Click to collapse
Thats actually pretty nice. Might have to pick one up. You ordered it from here? Im always kind of weary ordering from unknown websites.

pyraxiate said:
Thats actually pretty nice. Might have to pick one up. You ordered it from here? Im always kind of weary ordering from unknown websites.
Click to expand...
Click to collapse
Honestly, it's no different than ordering from ebay. With tvc-mall you do have to pay for shipping, but it's not that much and often the more you buy the cheaper shipping per item. But you will also notice their prices are a lot more cheaper than others so shipping cost is offset. Plus, the more stuff you buy the cheaper it is. I have ordered from them for awhile now (all my "almost real" cases were from there - although they don't officially carry it anymore, but unofficially it never hurts to ask them in email ). Even got a roll up drum kit toy for my kids the last time, and placing another order now for a few bluetooth small speakers, some 3.5mm cables, some toys, etc.. Plus, I just ordered a few more of those short usb cables with built in micro-sd card reader (the one I reviewed in my "smiley" cable review); I want to check it out if another cable will work with micro-sd since it didn't work with my original one.
If/when you place an order with them, chime in and share your experience.

Have you noticed any flickering? I've tried 2 different TV's, and only got it to work consistently once. Other times it shows the screen, then after a few seconds, flashes like it lost connect and comes back on.

williamn said:
Have you noticed any flickering? I've tried 2 different TV's, and only got it to work consistently once. Other times it shows the screen, then after a few seconds, flashes like it lost connect and comes back on.
Click to expand...
Click to collapse
Are we talking about exactly the same MHL adapter with Note 2 (stock, not rooted)? I can only speak for that setup and it works perfect. I only saw flickering using this setup with Galaxy S4 which has MHL v2 standard. With the setup above it was solid.
What I would suggest first to make sure all the cables are connected properly. What you describing is sounds almost like an intermittent behavior of a loose cable connection. HDMI cables usually have a sturdier connection, but check that anyway. Usually micro-usb is where you get it loose. Another thing to check is the power connection. If you are using 500mA wall charger that will not be enough to power it up, you will be current starving the converter. I was using my 2A oem wall charger.
Good luck!

Exact same adapter (I bought it after seeing your review), but I am running a different Rom (CleanRom 5.0). All connections are fine on the TV side, and I've replugged in the micro-usb (with adapter) into the N2 a few times, with same results. The wall charger should be good as well. Using the GCC app, I get a 1800 avg current.
Will test it more in depth tonight.

williamn said:
Exact same adapter (I bought it after seeing your review), but I am running a different Rom (CleanRom 5.0). All connections are fine on the TV side, and I've replugged in the micro-usb (with adapter) into the N2 a few times, with same results. The wall charger should be good as well. Using the GCC app, I get a 1800 avg current.
Will test it more in depth tonight.
Click to expand...
Click to collapse
Hi there williamn,
How did things go with your unit?

statustray said:
Hi there williamn,
How did things go with your unit?
Click to expand...
Click to collapse
I've only had time to try it once more, and it worked continuously for hours. Haven't changed anything on my phone, used the same cables. Will report back after I test it a few more times.

I got mine in the mail and it charges the phone but thats about it.

Bought it 2 days before but i didnt got it to work... :-/
I m in stock rom but rooted...
any ideas..?

are you guys using 5-to-11 adapter? Also, try to play around with powering it up first and then connecting hdmi cable versus connecting cable first and then powering it up. I actually used mine yesterday and it was working for awhile until my tv started to flicker which suggested connection was getting loose somewhere. Plus, I was playing on non-HD tv with hdmi to component converter and was using 1A external battery to power up this guy. So the power is used for both MHL converter and my HDMI converter, and I'm thinking maybe I should have used 2A charger for it... So just another suggestion maybe to make sure you use higher current charger to power it up?

No Luck for Me on N2 w/CleanRom 5.0
Well, I've had no luck at all. Purchased and received, hooked up as directed with OEM charger to rooted N2 running CleanRom 5.0. Not even a flicker on the Visio set I hooked it to. Phone acknowledges it is being charged, though the microUSB connectors (particularly on the adapter piece) seem a bit sketchy. But no matter what sequence I use to hook up, the TV never indicates even a flicker. Any other suggestions? Any setting on phone that triggers HDMI out? I use USB drives and devices without a hitch otherwise. The MHL Unit lights up and indicates it receives signals from the remote. I just never get a flicker on the TV.

Me neither...tried the 2amp charger also but no luck at all... I ve contacted the supplier and asked for a new one..(have to wait for a couple of weeks.. :-/ ) will try again then...
Is there any possibility that the problem is because we are ''rooted''..?

Better News!
:good: For those having trouble, I'm posting again to report I finally got mine working (except for the remote)! So it's not a problem with being rooted OR with running a custom ROM (at least CleanRom). I don't know about Cyanogen, or others that are not based on/derived from the orginal stock ROM, but I'm delighted to report that it works as gloriously as vectron indicated. As I indicated in my post above, the way the micro-USB connectors went together seemed sketchy to me, but I discovered that's where the problem lies -- and I'm guessing the same is true for others who have experienced failure like me.
I did more research and watched demo vids, etc. and paid close attention to how the parts went together. The key for me was to go ahead and force (gently but firmly) the 5 to 11 adapter ALL THE WAY into the phone jack. Mine didn't go in easily, and I was spooked to push too hard, but in the end that's what I had to do. When I pushed past the resistance and finally seated it firmly and fully flush with the bottom of the phone, VOILA!, the recognition message came up and immediately the HDMI was output to the TV. Both sound and audio worked really fine. It's pretty amazing when you see it work.
One note about the connectors. There is still a space between the 5-11 adapter and the MHL device plug. On mine at least, this connects WITHOUT being fully flush. BUT, as noted above, the adapter needs to be fully flush with the bottom of the phone. Hope this works for the rest of you. It is sweet if you get it working. vecron was correct, the key in in the connectors. They are finicky, but if you get them right, it works like a charm.

Especially when you are dealing with 11 months old Note 2 where you put a lot of wear''n'tear mileage on that micro-usb phone connector That's my problem
Regarding remote, not too insult your intelligence, I think there was a piece of plastic stuck in battery compartment so make sure its out for remote to work. Another point, that remote is not RF but rather IR (infrared) which requires direct visual contact with receiver element so you gotta make sure to point remote to that space on the converter. Hopefully that will fix your problem.