I got an XDA II from my dad, it had to charger. So, I got one off of eBay for all of £3.50. Within 10mins of it been connected it blew up?!?! I am being deadly serious, it actually did.
So, after getting my money back etc, they did not want their old unit back. So, I thought i may aswell put this to some use while my new charger (from a diffferent place) was delivered. So, I snipped the connector with some wire attached, rigged it up to a USB connector (As below) and there we have a nice DIY USB Charger.
The pinouts are as follows:
- (GND) Pin 4 on the USB
Pins 16,17,18 on XDA Connector
+ Pin 1 on the USB
Pins 20,21,22 on the XDA Connector
Its charging away quite nicely now, but I shall report back on the actual rate of charge because from what I gather the output of a USB is 100mA whereas the charger had an output of 200mA.
Hope you find this useful
no usb provide 500mA to share for all usb devices connected to the port
unless a powered usb hub is used in which case every port in the hub provide 500mA
Ah, Its going through a USB 1.1 hub... which has no external power.
Though, today.. my replacement arrives. Thanks for the help though, the information about the web is a bit vague.
Related
Is there actually any components inside the cigarette lighter plug thats used to charge the XDA in-car?
As i'm getting one of the digitraveler gps receivers, and want to modify the cable to allow me to charge the xda whilst using the gps. The only problem is I don't have an in-car charger for my xda, i do have to spare cigarette lighter plugs though.
Would it be possible to just use one of the plugs and send the + feed to pins 20,21,22 and the - feed to 16,17 & 18 ? as in Yorch's guide (http://www.yorch.net) Or does this thing need resistors and things inside it ??
:?
Many Thanks
Swifty, I modified a usb sync/charger with the lighter socket adaptor, just add the wires from the digitraveler to the usb cable, you then end up with sync/charger, car charger and digitraveler y lead/xda charger.
:? Hmmm I think I understand what you mean.. I don't really want to touch the usb cradle i have though, I just want to add the lighter plug onto the gps cable, solely for the purpose of charging when using the GPS in the car.
Cheers
Swifty, not the cradle, I got a usb sync/charger and a car lighter adaptor from ebay, I modified this instead of trying to add wires to the digitravelers connecter. The thread is under another posting about a cheap gps. Also the cables that come with it need to be modified to work with xda.
Yeh, I understand what your saying, but I'd rather not have to buy a car charger or whatever to then hack it about. Not when I have got several lighter plugs lying around, if I can use one of them... :wink:
Cheers
OK, if you use a standard plug end, you will blow it, if however you have an old phone charger lead that gives 5volts that should do the trick I think.
Aha! thats what i'm after, cheers mate
Anyone confirm its 5v I need before I cook my XDA :lol:
Cheers
The HTC XDA/Qtek must be feeded with 5 V. The current consumption can be as high as 1A when in use and charging internal battery.
I have made my own 5V regulator for car use, but this require some experience in electronics.
Here's what I have installed, with converter schematics.
More info here.
Regards, Tore
Cheers 8)
NT uses a 12pin micro USB cable as NC, it seems a special standard, if we use standard 5pin micro USB, only connect to computer is OK, but seems have some trouble to charge, could we find any replacement one?
ms2003 said:
NT uses a 12pin micro USB cable as NC, it seems a special standard, if we use standard 5pin micro USB, only connect to computer is OK, but seems have some trouble to charge, could we find any replacement one?
Click to expand...
Click to collapse
You'll need to purchase from B&N (unless somebody else can find another source). It is unique. If you look at it, the connector not only has 12 pins, but is longer. The extra length is what initiates contact for charging.
Although its slower to charge attached to the PC (500mA instead of 2A), it does charge. I left mine overnight and it was fully charged using a standard micro-usb cable.
My Samsung Galaxy Tab is like this. There is a software work around that makes it charge faster over USB (see http://forum.xda-developers.com/showthread.php?t=1323957). This gives hope that someday we get similar functionality.
donbowman said:
Although its slower to charge attached to the PC (500mA instead of 2A), it does charge. I left mine overnight and it was fully charged using a standard micro-usb cable.
My Samsung Galaxy Tab is like this. There is a software work around that makes it charge faster over USB (see http://forum.xda-developers.com/showthread.php?t=1323957). This gives hope that someday we get similar functionality.
Click to expand...
Click to collapse
I have heard it will only charge on PC via USB if the screen is off. Otherwise, it uses too much power to really charge it.
What would happen if I put the USB port into a power adapter? I use them to charge my phones when I don't have access to my laptop's USB ports.
salvachn said:
What would happen if I put the USB port into a power adapter? I use them to charge my phones when I don't have access to my laptop's USB ports.
Click to expand...
Click to collapse
Make sure it provides the correct amount of power first.
donbowman said:
Although its slower to charge attached to the PC (500mA instead of 2A), it does charge. I left mine overnight and it was fully charged using a standard micro-usb cable.
My Samsung Galaxy Tab is like this. There is a software work around that makes it charge faster over USB (see http://forum.xda-developers.com/showthread.php?t=1323957). This gives hope that someday we get similar functionality.
Click to expand...
Click to collapse
only the output will affect? if i found a charge head that provides 2A output will it work?
FWIW...
I tried using the official Nook cord with an Apple iPad (2 amp) usb charger. The NT never indicated that it was charging.
I tried using a quality micro USB cord with an iPad charger and with the official Nook charger, but it never indicated that it was charging.
I haven't tried a standard micro USB cord to a PC (yet).
So far, only official Nook cord and official Nook charger work for me. Alas.
SoonerLater said:
FWIW...
I tried using the official Nook cord with an Apple iPad (2 amp) usb charger. The NT never indicated that it was charging.
I tried using a quality micro USB cord with an iPad charger and with the official Nook charger, but it never indicated that it was charging.
I haven't tried a standard micro USB cord to a PC (yet).
So far, only official Nook cord and official Nook charger work for me. Alas.
Click to expand...
Click to collapse
using the nook cord here with my htc phone charger. all works well
None of my generic USB cords work.
USB Extension cables appear to work with charger
I tried a USB extension cable with the Nook charger and it does work. That means, I think, that the A end of the USB is standard.
I know nobody wants to sacrifice the Nook cable but I'm surprised no one has done this yet. I thought at least the Nook Color cable would be cross-compatible with the NT and someone would have buzzed out the Color cable by now.
There's the bi-color charge LED, but I can't see how they could put a charge chip in there; no room.
This cable is unique....and poorly constructed/misaligned to the 2 prong AC adapter. The USB does not fully insert into the AC Adapter. If not perfectly placed/propped while plugged in to charge, the NT does not charge or charges slowly.
My remedy has been to move the NT closer to the plug so that there is little to no bend in the cable leading to NT.
Will B&N send another if I request online/call? Or, must I unroot and go to a B&N?
SoonerLater said:
FWIW...
I tried using the official Nook cord with an Apple iPad (2 amp) usb charger. The NT never indicated that it was charging.
I tried using a quality micro USB cord with an iPad charger and with the official Nook charger, but it never indicated that it was charging.
I haven't tried a standard micro USB cord to a PC (yet).
So far, only official Nook cord and official Nook charger work for me. Alas.
Click to expand...
Click to collapse
I have an Apple USB extender between the Nook wall plug and USB cable. Charges fine.
Sent from my BNTV250 using xda premium
johninsf said:
This cable is unique....and poorly constructed/misaligned to the 2 prong AC adapter. The USB does not fully insert into the AC Adapter.
Click to expand...
Click to collapse
Yeah, it's terrible. I don't have any charging issues, but the misalignment causes a ton of electricity to leak, so don't leave it on a couch or a fuzzy blanket unless you want (shockingly) pleasant surprises for hours. I wish they would make an all-in-one-piece as well (do they? would be a good add-on). Sheesh, poor design.
With the billions and billions of 3rd party cords out there, it seems amazing that none exist for the nook tablet. I don't really wanna pay 30 bucks for a backup charger.
2mA too much?
I noticed that the official Nook charger output is rated at 1.9mA - I've just bought a generic 2.0mA USB plug adapter and am hoping that it will work with the existing Nook USB cable. I'm hoping the extra 100mA won't fry the thing...
The extra pins in the Micro end of the Nook USB cable are used to support the higher power draw of the Nook when charging at full rate (2.0A) since the max rated current of a Micro-USB connector is only 1.8A. I am sure they also use the additional pins to make the cable proprietary and possibly also control the bi-color LED. The extra pins are set further into the connector so that they do not cause compatibility problems with standard Micro-USB cables.
In addition to this, the charger brick that comes with the Nook has its Data lines shorted, to each other I believe, to indicate to the Nook that it is plugged into an adapter and not a computer.
The combination of those two things is what is needed for the Nook to charge at its full charge rate. Since the USB A end of the cable is a standard 4-pin design, extension cables that offer all 4 pins/wires will work fine.
The Apple adapter (even the 2.0A version) will not work because it uses a voltage divider (couple of resistors) on the data lines to indicate to the iPod/iPhone what style charger it is (1.0A or 2.0A). One of the data lines is held at 2.1V and the other at 2.7V. Depending on which one (D+ or D-) is at what voltage determines what style charger it is. So the Nook does not recognize the "non-zero" voltage values on the data lines and assumes it is a PC, so it will only charge at 500mA.
Other vendors power bricks use the same "short the data lines" trick as the Nook adapter so several others will work. I believe as mentioned already in this post that HTC uses this same method.
WARNING
Be careful though because if the adapter is rated at less than 2.0A (e.g. 1.0A) you could cause damage or fire. I am not sure if the Nook will slow down charging if it detects the charge voltage dropping if it is trying to pull too much power out of an underrated supply.
If you really want to use your Apple IPad adapter with your Nook Color/Tablet cable you could modify a USB A/A extension cable to disconnect the Data lines and then tie together only the data lines on the side of the cable that will go to the Nook. Again, this can be dangerous, I can not take any responsibility if you attempt to do this.
HTML:
USB A/A Extension Cable
[ ] GND ----------------------------------------------------- GND [ ]
[ ] D+ ------} <-tied to D- cut and taped-> D+ [ ]
[ Nook ] D- ------} <-tied to D+ cut and taped-> D- [ Adapter ]
[ ] +5V ----------------------------------------------------- +5V [ ]
AdamOutler has confirmed that it will charge on any usb cable, but the tab must be off and it will not show signs of charging. I'm pretty sure that this was charging from the computer.
My device battery is way low.. I'm charging on normal USB so it's trickling up at a rate of about 0x0010 per 2 minutes. At this rate, the device will be ready to use in aproximately 1.5 hours... And until then i'm sure nothing will show on the screen.
This may or may not apply to using the Barnes and Nobel cable. I do not have one available though.
So, if you ever come across a situation where the device won't turn on even after being plugged in, leave it plugged in for a few hours. It could have a case of the "sleeping death".
Also, I'm able to verify that the device... even when totally powered off will charge on a standard USB cable.
Click to expand...
Click to collapse
http://forum.xda-developers.com/showpost.php?p=20905962&postcount=190
Has anyone else had issues with the end that plugs into the nook bending out of place and preventing the cable from working? Since its the cable that is not working and since the tab is still under warranty can I take it back and get the cable replaced for free?
bscythe said:
the charger brick that comes with the Nook has its Data lines shorted, to each other I believe, to indicate to the Nook that it is plugged into an adapter and not a computer.
Click to expand...
Click to collapse
Ahhh... So we can't use a generic power brick or car charger and have the NT charge at full rate (unless we also muck with the USB cable). Thanks for this info!
Is the USB to Micro USB cable used by the SGP 4 or 5 a proprietary cable to this specific device? I have read several posts here and on other forums that some cables don't work or some chargers with micro USB connections don't charge the SGP. Is there something special in the wiring of the cable that comes with the SGP. I would like a spare cable and a car charger, but want to be sure I am getting one that will work.
Thanks.
Been wondering this myself, I read a write up on another forum with a lot of different specs amongst different micro usb samsung chargers it made my head spin.....I read that they(Phone manufactures) will be making a micro-usb standard next year amongst phone manufactures that should eliminate this issue....I have a LG micro usb charger that does nothing for my galaxy player.
I've been using a short USB to microUSB cable from Sandisk intended for their Clip Zip players. No problems charging or transferring data to the SGP 5.0.
TonyBigs said:
I've been using a short USB to microUSB cable from Sandisk intended for their Clip Zip players. No problems charging or transferring data to the SGP 5.0.
Click to expand...
Click to collapse
could you post a picture of this? like plug in the clip zip through the usb to the sgp 5
The AC and car chargers for my Verizon LG Revere phone will both charge the SGP 4. The connector is a commonly-used mini USB standard, shaped like the letter 'D' when viewed from the end.
Has anyone actually gone out and bought a cable or charger for the SGP5 that works? It is nice that this or that phone or device's cable and charger work -but if you don't own that phone or device to get the cable or charger from, it does not help. And Samsung does not seem to offer OEM cables or chargers on their site.
SGP needs micro-usb with data shorted to gnd to charge
Just like my Toshiba TG01, the SGP needs a micro-usb connection with the data pin shorted to ground in order to charge correctly. In the Samsung charger that comes with the US version, the charging cable is a straight micro-usb data connector, which means the charger must have the data pin shorted. This way, the cable itself can be plugged into the PC for data transfer. Personally, I have hacked up an adapter (female USB to male USB) which has the two pins shorted, so I can plug the adapter in-line with the data cable into any USB port that supplies a regulated 5V, and the SGP will charge. Otherwise, you need to make sure the charger has the proper implementation of the shorted data pins.
Aurally said:
Just like my Toshiba TG01, the SGP needs a micro-usb connection with the data pin shorted to ground in order to charge correctly. In the Samsung charger that comes with the US version, the charging cable is a straight micro-usb data connector, which means the charger must have the data pin shorted. This way, the cable itself can be plugged into the PC for data transfer. Personally, I have hacked up an adapter (female USB to male USB) which has the two pins shorted, so I can plug the adapter in-line with the data cable into any USB port that supplies a regulated 5V, and the SGP will charge. Otherwise, you need to make sure the charger has the proper implementation of the shorted data pins.
Click to expand...
Click to collapse
I understand what you are saying but not sure how to implement it to make an adapter such as you have. Do you short the D+ and D- wires in the adapter cable to the ground wire - touch (connect) all three together?
I have been using the charging cable for my LG cosmos 2 and it works fine. I have, however, only used it for charging, not data.
Aurally said:
Just like my Toshiba TG01, the SGP needs a micro-usb connection with the data pin shorted to ground in order to charge correctly. In the Samsung charger that comes with the US version, the charging cable is a straight micro-usb data connector, which means the charger must have the data pin shorted. This way, the cable itself can be plugged into the PC for data transfer. Personally, I have hacked up an adapter (female USB to male USB) which has the two pins shorted, so I can plug the adapter in-line with the data cable into any USB port that supplies a regulated 5V, and the SGP will charge. Otherwise, you need to make sure the charger has the proper implementation of the shorted data pins.
Click to expand...
Click to collapse
Wouldn't all USB port chargers - by that I mean a car charger with a usb port in it or a wall charger with a usb port in it, have the data pins disconnected or shorted out as they are made for charging only and of course, no data transfer?
My Optimus-V cable does not work for charging or USB.
My car charger for my Optimus does not charge my SGP5.
My Logitech Mouse cable does charge my SGP5, but USB to PC does not work.
I have a car charger ordered not received yet, 50-50 shot at working.
A "standard" would be nice!
That's odd... Nearly all Samsung devices (except for Tabs) follow the USB charging standard, which is that D+ and D- need to be shorted together by the charger to indicate a dumb charger.
iPad/iPhone chargers don't do this - iDevices do NOT follow the standard.
I'm trying to reduce how many cables and plugs I use. Currently I charge my phone via micro usb, and was wondering if there is an accessory I can buy that will connect from my micro usb cable and into the Prime's proprietary port so I can charge my phone and tablet of a single plug (my phone overnight and then my tablet the next day). I'd much rather have a small adaptor sitting on my bedside table for when I need it than yet another wire trailing across the floor. My plug socket is tucked behind my bed so simply swapping the usb cable each time isn't really do-able.
Many thanks
Tomlilley said:
I'm trying to reduce how many cables and plugs I use. Currently I charge my phone via micro usb, and was wondering if there is an accessory I can buy that will connect from my micro usb cable and into the Prime's proprietary port so I can charge my phone and tablet of a single plug (my phone overnight and then my tablet the next day). I'd much rather have a small adaptor sitting on my bedside table for when I need it than yet another wire trailing across the floor. My plug socket is tucked behind my bed so simply swapping the usb cable each time isn't really do-able.
Many thanks
Click to expand...
Click to collapse
it is do-able if you used a male to female usb adapter. Then you could just plug in the cable you need to charge with.
I have not seen a micro female usb to full size male? I have seen full size to micro.
You could always get a powered USB hub aswell and have both plugged in. I though I read somewhere that the prime charges best when plugged into the wall though.
I'm going to guess your phone charges at ~5v and the prime will want ~12v (link) ...
There are some reports that 5v will "charge" a transformer, but I'm skeptical ...
More than likely 5v would be more of a trickle charge at a slower rate.
@Tomlilley What did you end up doing?
@copc Interesting idea regarding the powered USB hub. Would the following configuration be possible: TF plugged into a power USB hub and charging, an external HD plugged into the power USB hub with the TF accessing the external HD?
Doesn't USB max out at 5v and Prime is 15v by default (it looks like it charges at 12v as well).
Has anyone tried a USB female to female gender changer on the charging cable to hookup a thumb drive or controller?
Yep, tried a USB 2.0 and 3.0 adapter. No dice.
Damn! I really don't like that bulky usb adapter. I have a fear of breaking my port. The cable is bad enough.
You can build your own: http://forum.xda-developers.com/showthread.php?t=1102049
At the end of the thread there are some photos of USB adapter board and the list of components you need.
EDIT: Found some pinout schema: http://forum.xda-developers.com/showpost.php?p=19566215&postcount=35
Hello,
I read that the USB to charge the ATP is a USB3.0.
On my desktop, I have such a plug. Do you think that it will charge at standard ASUS rate?
My USB 3.0 is on an quick-pci + molex connector, so it is powered by the desktop power-supply, so it should deliver the proper 15v, shouldn't it?
has anyone tried?
I routinely charge my Prime from my HP laptop's USB port. It takes a bit longer then the wall plug, but I do it at night when I am asleep, so it isn't a problem.
Bear in mind that your standard USB port delivers a limited amount of current. You can overdraw the usb port power supply and burn it out. I did this on an older dell POS c-series laptop by attaching 3 usb powered external hdd's simultaneously. Zorch, no more power to USB ports. That was a drag, luckily it was a company supplied POS laptop so the help desk sent me another. Rember that theTP is going to be trying to draw three times the charging current at 5 volts that it does at 15. Unless Asus made it smart enough to realize that its connected to a computer rather than its wall wart. I don't know. But I'm leary of USB charging.