Database Users

My XDA won't charge

There have been quite a few postings here on people having problems charging their XDA with thrird-party chargers originally built for the XDA I.
Add me to the list I"m on the road and can't get the damned thing charged using the charger.
However the good news is, that the problem is not the cable (or the connector for that matter). Right now I'm in the internet cafe using the USB-connection to charge the XDA II at least a little. THis is working!!
My third-partz charger is a power supply with a USB-socket, that connects with this charge-sync cable. But, its not working! This leaves two possibilities:
1) The power supply is providing a lower voltage than the XDA II requires (something less than 5.0 Volts, mazbe 4.7?). I can't check this here, but if someone with a similar problem could measure his charger voltage using a multimeter, we might find an answer. Pins to check on this site under "connector".
If this is the cause, it won't help me here, but at least we'll have the problem solved.
2) I noticed in my charger, that the USB/pins 2 and 3 ( Data-H and Data-L) are unconnected. Potentially the XDA II has an issue if these lines are floating whilst power is applied to the USB-bus. I don't know if we can check this easilz,bu if someone has an Idea?
Greetings from the Maldives 8) Sun, warm, great, but no power for my XDA!!!

mobile charger
I'm using a nokia charger, and the supplied adapter and it seesm to work fine.

MDA/XDA II Pinout - Charge Issue Resolved!!
Being back from my vacation, I immediately got into figuring out why my third party charger was not working, though the MDA II would charge through the same cable when connected to the USB-bus of a PC.
It was a wiring error in the USB-cable after all!
To figure it out I took that little adapter that comes with the original charger apart. Though the MDA/XDA II has the same pinout as the MDA/XDA I, there is a major difference in that not all GND pins are connected together inside. In order to charge, at least one of Pins 16,17,18 must be connected to ground. The grounds on pins 2 and 5 are not connected to the internal charge circuit. TO make things worse, the MDA/XDA detects an external charge power source when pin 2 is GND and Pin 22 is +5V - so the light goes on, but it still does not charge.
On my cable the USB-shield was connected to pin 18. When connected to a PC, the shield was connected at that end to Ground and all went well. On my charger supply, the shield was not connected, so it couldn't charge.
I just rewired the connector and see there it works!
So, if you have the same problem, and are handy at the soldering iron, there is a solution! For those making/selling those USB charge/sync cables, get it right the first time!

Is it safe using a Nokia Charger ?
My Nokia travel charger is rated at 6.2 V, not 5.0 as the one supplied with the XDA II
Regards
Michael

Yeah! But watch out anyway because the volatge is not the only thing to check before charging a device. The right voltage but a bad amperage can cause lots of damage...

Using the Brando USB charger woukd actually DRAIN the battery when the bar reaches yellow....

Using a Nokia charger
The Nokia is rated at 6.2 V 720 mA, the original charger is 5V 1 A.
If I understand my physics right, the XDA may draw more current that the charger can handle, so AMP vise, the danger is on the charger ?
Not that I belive that the XDA would really pull 1A, but you never know.
It would be really nice to have just one charger in the travel bag..
Regards
Michael

Suggest a USB Charger and source.
Can anyone suggest a usb charger cable and source in the UK for an O2 XDA 2 as the one that I have currently does not charge at all despite the light saying so.

xda ll charger
hi
you may get a car charger from http://www.expansys.com/product.asp?code=108736
i have had one on order for 2 weeks now may get it in the end :lol:

Re: Suggest a USB Charger and source.
bloodwynd said:
Can anyone suggest a usb charger cable and source in the UK for an O2 XDA 2 as the one that I have currently does not charge at all despite the light saying so.
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Click to collapse
This was the effect I had. Its a mistake in the wiring on your cable.

Thanks,
What I am really after is to find out if there is a place to find a USB cable that will work right out of the box/dodgy package that it comes in. I am not good with soldering irons or electronics and would like to buy one that is wired up correctly to charge my XDA II.
Cheers.

A doubt about htc charger.

I have an hd 2 and its a used one when i bought it. So i dont get the original charger. I got a samsung charger @ 5v, 700ma. But when i connect it, the phone shows usb detected. Though its charging, its pretty slow, i think the usb mode makes it. Taking only few 100-300ma only. And the charging takes long. I know htc need 1amp charger. But i cant get it here. So i decided to rip the charger and make some modifications ( like grounding or shorting the data pins- the middle two) . So i need a little help. Any of you guys having an htc original charger pls help me. Howz the data pins connected in the original charger? Are they shorted together or they are open? Or they are grounded? Pls help me those who know abot it. I want to make my charger form usb charging to default charging. It badly needed
send from my hd2 @ miui 1.12.2

That's weird. I've got original Samsung 0.7A charger here and HTC Desire HD does detect it as charger aswell and takes 1A from it. Shortening datapins together does usually convince most of phones that they are connected to wall charger. Maybe it's not the case for HD2.

Samsung Galaxy Phone Rapid Charger Modcheck this thread few under yours... speaking of shorting data pins.

HD2 is same as most, requires 2 data pins to be shorted together (2 inner pins).
Easy mod on most charger units. If charger is a cheap china job, the quoted 700mA figure could be optimistic ... temporary mod it by shorting data pins together & see how it performs ...

But there are 3 pins and not 4. So which ones are the middle?
send from my hd2 @ miui 1.12.2

Can you supply a good picture of this.

showlyshah said:
But there are 3 pins and not 4. So which ones are the middle?
send from my hd2 @ miui 1.12.2
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Sorry thatz an error. I mean 5 pin and not 4. All the pins are present( which are prsent in data cable)
send from my hd2 @ miui 1.12.2

Maybe this will help ...

Is it microusb?
You're supposed to shorten D+ and D-, but rather in charger. ;P

Mister B said:
Maybe this will help ...
Click to expand...
Click to collapse
Is that micro usb?
send from my hd2 @ miui 1.12.2

Thakz dude
send from my hd2 @ miui 1.12.2

@ mister b and rebelloz ..
Thankz dude. I will click thankx button when i get to pc. Now i am frm phone
send from my hd2 @ miui 1.12.2

Very useful guide as I am facing the same problem. Thanks.

Useful guide i am also facing the same problem...

can anyone confirm if it worked for them? I made an adapter by shorting both data leads, but it didn't work for me. My phone will charge when switched off, but when it's on with both gps and data running, it barely gets enough current to charge the battery. Only my original cable works.

stanburn said:
can anyone confirm if it worked for them? I made an adapter by shorting both data leads, but it didn't work for me. My phone will charge when switched off, but when it's on with both gps and data running, it barely gets enough current to charge the battery. Only my original cable works.
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What device?
Signalling a dumb charger with MiniUSB (as opposed to MicroUSB) is less standardized. On most MiniUSB devices it's done by shorting pin 4 to pin 5, but it varies.

I could be wrong about this (someone please correct me if I am), but I believe the transformer inside the charger will need physically replacing if you're going to be pulling more current from it. If it's not too much over the charger's rated current it may be ok, but I've burned up more than one of them by hooking it up to something that draws more than what they were designed for.

xHausx said:
I could be wrong about this (someone please correct me if I am), but I believe the transformer inside the charger will need physically replacing if you're going to be pulling more current from it. If it's not too much over the charger's rated current it may be ok, but I've burned up more than one of them by hooking it up to something that draws more than what they were designed for.
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Click to collapse
Depends as part of the reason of the mod is to achieve full power draw of a acceptable rated charger by making the phone think it is connected to HTC charger & thus charge at mains rate of 1A or a little above rather than USB standard of 500mA. Most chargers of reasonable quality will supply 800mA to 1.2A & if you buy wisely a bit higher.
Issue arises on cheap china chargers with false specs that actually only handle 500mA & perhaps 800mA max for short bursts but when these are forced to supply more will fail.
A good quality charger will have no problem supplying full charge to a HTC handset ...

A good example - getting a non-iDevice to pull its full rated charge current from an iPad charger (charger rated 2.1A, but nothing but iDevices will pull any more than 500 mA from it without modifications.)
A good example of cheap Chinese chargers - the "1A" chargers carried by Monoprice. They're good for 300-400 mA at best. You won't burn them out as it's a fundamental current limit setting of the SMPS chip, but the voltage will droop if you try to pull too much out of it. It's the only Monoprice product I've ever been disappointed with.

Originally Posted by stanburn
can anyone confirm if it worked for them? I made an adapter by shorting both data leads, but it didn't work for me. My phone will charge when switched off, but when it's on with both gps and data running, it barely gets enough current to charge the battery. Only my original cable works.
Click to expand...
Click to collapse
What device?
Signalling a dumb charger with MiniUSB (as opposed to MicroUSB) is less standardized. On most MiniUSB devices it's done by shorting pin 4 to pin 5, but it varies.
Click to expand...
Click to collapse
sorry about that, I have the HD2. if I use the replacement cable with both data lines I shorted, it never charges when the phone is running. but if I swap my original cable the phone charges normally.
it's as though it ignores the shorted data lines, or maybe the HD2 doesn't really work that way?
I'm worried because my original cable is beginning to show signs of wear and tear.
Sent from my HTC HD2 using XDA

[Q] Old Nokia Charger for Defy

Hello Defyers
I have an Old (small pin) nokia car charger its specs as the following
- Input 12v DC
- output 5.7 V 890 mA
I want to convert this small pin charger to a micro USB by some cutting and wiring
My concern is... if i use this charger with my Defy will i fry it...
its standard charger produced 5V , 850mA
with that 0.7V difference i might overload my circuts but it will work in the end
or i will end up with a black shiny brick
my defy is over clocked and running CM7

I've been using this adapter for a while (got it with the E52 from work). Donn't know about rewiring (might be hard to find a "blank" microUSB jack).
Cheers!

use 5 volt regulator IC in output voltage..

Use a diode in forward bais it give .7 voltage drop across it ...
Sent from my MB526 using xda app-developers app

USB specs allow for a 10% voltage tolerance and that's a conservative safety margin. If your 5.7V charger really spits out 5.7V (and not 5.7 + 10%) you have nothing to worry about.

detailes
rogier666 said:
USB specs allow for a 10% voltage tolerance and that's a conservative safety margin. If your 5.7V charger really spits out 5.7V (and not 5.7 + 10%) you have nothing to worry about.
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you must strip the wires, cut the white and green and put them together, black and red leave them as they are, i have an 2000mAh charger built from a router adaptor and it is working very good, and that i have solved the problem with auto charger that is not OEM- Motorola.

Car charging (or not in this case) how to monitor?

Little help chaps.
Ok i've just bought this http://www.ebay.co.uk/itm/390566738301
I presumed (not sure if rightly or wrongly) that it would be sufficient to charge my Nexus 4
I'm using an older usb cable I've got to charge it in my car however if i'm using navigation then the battery still decreases.
I've got a funny feeling that the cable is the culprit but i'm not 100% sure.
Is there anyway to monitor how much juice your phone is getting from the charge?
P.S in the battery monitor screen it says AC not USB
Thanks in advance for any help
Stret

Battery monitor widget pro. It monitors the mA that's being used, mV, etc. Maybe the phone is pulling more mA than the charger is supplying.

You need to go into your battery settings/status while your phone is plugged into your car charger.
It will show one of two statuses:
Charging(AC) and Charching(USB)
If it is showing charging(USB), then the phone is detecting a false data connection. This can be solved by taking apart your USB charger and soldering the middle two pins of the USB. These pins are the Data(+) and Data(-) pins. I attached an image of the two Data pins soldered together on the usb charger.
If it is showing Charging(AC), then your USB charger is not pushing enough mA to charge your phone. Most cheap car USB chargers are in the 500 mA to 700 mA range. The stock USB wall charger that comes with your Nexus 4 is 5V 1200mA.

t989BeLikeItDo said:
You need to go into your battery settings/status while your phone is plugged into your car charger.
It will show one of two statuses:
Charging(AC) and Charching(USB)
If it is showing charging(USB), then the phone is detecting a false data connection. This can be solved by taking apart your USB charger and soldering the middle two pins of the USB. These pins are the Data(+) and Data(-) pins. I attached an image of the two Data pins soldered together on the usb charger.
If it is showing Charging(AC), then your USB charger is not pushing enough mA to charge your phone. Most cheap car USB chargers are in the 500 mA to 700 mA range. The stock USB wall charger that comes with your Nexus 4 is 5V 1200mA.
Click to expand...
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Yeah it definitely shows AC was the first thing I checked, so what your saying is that link o posted above is actaully a false claim to how much power it knocks out?
Stret

Stretlow said:
Yeah it definitely shows AC was the first thing I checked, so what your saying is that link o posted above is actaully a false claim to how much power it knocks out?
Stret
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Click to collapse
Hard to say. From my experience, you get what you pay for. A USB charger that cost less than 2 GBP seems unlikely to support the kind of mA throughput that the Nexus 4 requires.
Some ways to check this are to check the power supply and draw through a battery monitoring app, use a different USB cable or the USB cable that came with your Nexus 4, or take apart the USB charger and inspect the hardware to see if it actually is built to support a 2A supply. That last one is a bit of a headache.
Here is an iFixit teardown of a similar USB charger which goes into detail about some of the working parts of a car USB charger.
To quote the final part of the iFixit teardown:
Quite simply, the device is a rebadged 500mA or 750mA USB charger at best. It is NOT 1A capable, despite what the sticker on the body says.
Click to expand...
Click to collapse
Good luck!

t989BeLikeItDo said:
Hard to say. From my experience when it goes about this type of gear is that you get what you pay or. For a USB charger that cost less than 2 GBP it seems unlikely that it would support the kind of mA throughput that the Nexus 4 requires.
Some ways to check this is to check the power supply and draw through a battery monitoring app, use a different USB cable or the USB cable that came with your Nexus 4, or take apart the USB charger and inspect the hardware to see if it actually is built to support a 2A supply. That last one is a bit of a headache.
Here is an iFixit teardown of a similar USB charger which goes into detail about some of the working parts of a car USB charger.
Good luck!
Click to expand...
Click to collapse
Thanks for your help mate

Stretlow said:
Thanks for your help mate
Click to expand...
Click to collapse
No problem! You should try and remember that the Nexus 4 is a pretty sophisticated piece of hardware. I'm not advocating that you go out and spend 20 GBP on equipment, but you don't want to use a cheap generic piece of trash to interface that electrical connection. The build quality of your charger can put your handset at risk to being damaged by electrical shorts and/or heat.
I would liken it to parking your sports car in a cheap parking garage on the bad side of town. Sure, you can do it, but there are risks involved!

1.8 amp car charger

Reading from the AC adapter, this thing can charge at 1.8 amps. I'm doing some research on car chargers that can output 2 amps to the phone via a USB cable, but the trick is getting the phone to pull more than .5 amps from a car accessory outlet. So far I haven't had much luck. There seems to be a lot of info on ipad stuff, but not much in the way of high powered Android devices. So I thought I'd start a thread about compatible car chargers that will allow a full 1.8 amp pull from my car outlet, and see what you guys and gals think and have tried. I've attached a pic of my current setup. It's a Proclip holder on a 2012 Mustang. I've used this same setup for several previous phones (S2 Skyrocket and S3). The holder itself is adjustable to accommodate various phones with cases.

earlthepearl said:
Reading from the AC adapter, this thing can charge at 1.8 amps. I'm doing some research on car chargers that can output 2 amps to the phone via a USB cable, but the trick is getting the phone to pull more than .5 amps from a car accessory outlet. So far I haven't had much luck. There seems to be a lot of info on ipad stuff, but not much in the way of high powered Android devices. So I thought I'd start a thread about compatible car chargers that will allow a full 1.8 amp pull from my car outlet, and see what you guys and gals think and have tried. I've attached a pic of my current setup. It's a Proclip holder on a 2012 Mustang. I've used this same setup for several previous phones (S2 Skyrocket and S3). The holder itself is adjustable to accommodate various phones with cases.
Click to expand...
Click to collapse
Data pins need shorted together, either in the USB cig plug, or some micro USB cables are this way...

Additionally, the USB cable you use needs to have thick enough power wires to support 1.8A charge draw. Many USB cables use 28 AWG wire for the data conductors, and then you get varying degrees of wire gauge for the power conductors depending on manufacturer. Some people use 28 AWG for both, some use 26, and good cables are made with 24 AWG wire. The thicker wire gauge means less resistance so less power is lost and more can be put into the battery. To pull a proper 1.8A the phone probably should have 22AWG power wire in the USB cable really...

earlthepearl said:
Reading from the AC adapter, this thing can charge at 1.8 amps. I'm doing some research on car chargers that can output 2 amps to the phone via a USB cable, but the trick is getting the phone to pull more than .5 amps from a car accessory outlet. So far I haven't had much luck. There seems to be a lot of info on ipad stuff, but not much in the way of high powered Android devices. So I thought I'd start a thread about compatible car chargers that will allow a full 1.8 amp pull from my car outlet, and see what you guys and gals think and have tried. I've attached a pic of my current setup. It's a Proclip holder on a 2012 Mustang. I've used this same setup for several previous phones (S2 Skyrocket and S3). The holder itself is adjustable to accommodate various phones with cases.
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Click to collapse
Hi, not trying to hijack your thread, but can you tell me which case you are using? I like the fact that it has a large lip around the screen.
Thanks

What model pro clip holder is that? I need to replace the one from my nexus. May hold out for the G2 specific one with the cable built in (like the nexus one I have now), but no telling how long that will be.

mikea3000 said:
Hi, not trying to hijack your thread, but can you tell me which case you are using? I like the fact that it has a large lip around the screen.
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Click to collapse
It's the Body Glove case from the AT&T store. It was the only one they had at the time, and I didn't feel like waiting to order one so I overpaid in exchange for some piece of mind.
stetsonaw said:
What model pro clip holder is that? I need to replace the one from my nexus. May hold out for the G2 specific one with the cable built in (like the nexus one I have now), but no telling how long that will be.
Click to expand...
Click to collapse
It's the holder I ordered for my Skyrocket a few years ago. It's a generic adjustable one that fits a lot of different phones with cases. It has fit my SR, GS3, and now my G2, all with cases.

EniGmA1987 said:
Additionally, the USB cable you use needs to have thick enough power wires to support 1.8A charge draw.
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Click to collapse
I have a custom 5 inch up angle micro USB cable I ordered from www.usbfirewire.com. It is a very thick wire, thicker than the charging cable the G2 came with. The one in my pic is probably not thick enough for a 2 amp charge.

Here is an interesting article I came across about car chargers:
The Best USB Car Charger

EniGmA1987 said:
Additionally, the USB cable you use needs to have thick enough power wires to support 1.8A charge draw. Many USB cables use 28 AWG wire for the data conductors, and then you get varying degrees of wire gauge for the power conductors depending on manufacturer. Some people use 28 AWG for both, some use 26, and good cables are made with 24 AWG wire. The thicker wire gauge means less resistance so less power is lost and more can be put into the battery. To pull a proper 1.8A the phone probably should have 22AWG power wire in the USB cable really...
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Spot on. FWIW, the LG OEM cable is 20AWG on the power wires. This is the only viable explanation as I can't get the OEM wall charger to work with any cables I have sitting around (24AWG at best).

So would we be better off just using the factory charger with a power inverter or is there an actual car charger that will work?

Provided you short the data pins in whatever car charger you buy (if they arent already) and you get a cable with beefy power conductors then you should be able to draw 1.5-1.8A of power through a car charger. You have to make sure the car charger will do what you want though, many 2A chargers also have 2 ports to plug into. What they don't tell you is that each port is limited to 1A and both together will give 2A draw, but not to charge one device. The car itself also may limit power to the charger as well, I know my car specifically says 1.4A max through the cigarette plug. So it is possible to do, it is all just dependent on so many other things that you have to check off the list.

in_dmand said:
So would we be better off just using the factory charger with a power inverter or is there an actual car charger that will work?
Click to expand...
Click to collapse
That's what I'm trying to figure out. I'm tempted to try that Scosche charger, with my thick USB cable. I installed Currentwidget, so I should be ale to see at what rate I'm charging at if I decide to order it.

in_dmand said:
So would we be better off just using the factory charger with a power inverter or is there an actual car charger that will work?
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Click to collapse
I like the Powergen dual 2.1A USB charger I got off of Amazon. Has served me well. But really, anything 1.8A+ that's quality will do. The trick is going to be the USB cable. Still trying to source one from a reputable site, but you want something with 20AWG for the power. If I find something, I'll post it. Thus far I found two sites, kinda obscure, but not thrilled that the shipping alone costs more than the cables which run $6.
---------- Post added at 08:41 PM ---------- Previous post was at 08:39 PM ----------
EniGmA1987 said:
Provided you short the data pins in whatever car charger you buy (if they arent already) and you get a cable with beefy power conductors then you should be able to draw 1.5-1.8A of power through a car charger. You have to make sure the car charger will do what you want though, many 2A chargers also have 2 ports to plug into. What they don't tell you is that each port is limited to 1A and both together will give 2A draw, but not to charge one device. The car itself also may limit power to the charger as well, I know my car specifically says 1.4A max through the cigarette plug. So it is possible to do, it is all just dependent on so many other things that you have to check off the list.
Click to expand...
Click to collapse
I suspect the phone can detect the charger capacity because my OEM LG cable works on both the Apple and Non-Apple ports on the Powergen charger. Since that's the case, the phone doesn't seem to care if the data pins are shorted or not. And the Powergen is advertised as 4.2A total, so 2.1A per port.

kyler13 said:
I like the Powergen dual 2.1A USB charger I got off of Amazon. Has served me well. But really, anything 1.8A+ that's quality will do. The trick is going to be the USB cable. Still trying to source one from a reputable site, but you want something with 20AWG for the power. If I find something, I'll post it. Thus far I found two sites, kinda obscure, but not thrilled that the shipping alone costs more than the cables which run $6.
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Something worth considering is looking at charging cables labeled for tablets. They usually charge in this amperage range. I plugged my g2 into my kindle fire HD charger (1.8A) and didn't get any slow charge warnings.

Geekybiker said:
Something worth considering is looking at charging cables labeled for tablets. They usually charge in this amperage range. I plugged my g2 into my kindle fire HD charger (1.8A) and didn't get any slow charge warnings.
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Doesn't that come with the same Amazon branded usb cable you can get by itself? Take a look on the cable. A lot of times they label the wire gauge.
Sent from my VS980 4G using Tapatalk 4

my amazon branded micro usb cables are 28awg and they still allow quick charge with oem wall charger.

The charging issues associated with this phone has been a huge PITA. I've been carrying my stock cable around just so I can charge my phone!!! Subscribed so I can maybe help out with some info...

bova80 said:
my amazon branded micro usb cables are 28awg and they still allow quick charge with oem wall charger.
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Are you certain that's not just the data side that is 28awg? Very surprised you can pull 1.8A at 28awg.
Sent from my VS980 4G using Tapatalk 4

kyler13 said:
Doesn't that come with the same Amazon branded usb cable you can get by itself? Take a look on the cable. A lot of times they label the wire gauge.
Sent from my VS980 4G using Tapatalk 4
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They are unmarked.