[Q] A/C Charger issues (using generic 5V adapter) - Sony Xperia S Tablet - Sony Tablet S

Can anyone else tell me if they have any issues charging the sony xperia using an adapter other than the one supplied?
I have one that I use for everything, iphone, kindle, garmin watch, sansa mp3 player. Yet when I hook up the sony usb charger cable to it the battery light blinks and viewing in the battery section of settings shows it alternating between 'charging' and 'discharging' at the same frequency as the flashing light. This frequency is roughly 1 second. I managed to stabalise the charging on this OEM adapter once. It always charges perfectly on the supplied adapter.
Also I have a portable 5V charger that again I use for all my gadgets as listed above. They all work fine. Not the sony tablet. 'Charging is not supported with this accessory' I'm told this time.
This tablet is looking worse and worse to me. The fact that this tablet was supposed to be bog standard 5V and came with the usb setup (making it simple to use with my portable charger) was one of the major reasons I bought it. Yet I can only use the supplied adapter and am stuck to the A/C supply.
Anyone else seeing similar problems?

Problem? Sony tableyt s dont use the usb port for battery charging
Sent from my Sony Tablet S using xda app-developers app

Hernan1978 said:
Problem? Sony tableyt s dont use the usb port for battery charging
Sent from my Sony Tablet S using xda app-developers app
Click to expand...
Click to collapse
Anyone that owns the tablet will understand what I am saying. The charger cable comes in a 2 piece. A usb to proprietary connector lead and an A/C adapter. You connect the proprietary end of the cable to the tablet. You connect the full USB connector end of the the cable to the adapter. You plug the adapter into the mains and it charges your tablet.
What I am saying is that if I use an alternate A/C adapter (i.e. one that accepts a USB connection and is rated for 1.5 amps and 5V) it does not charge the tablet correctly. I can't see why this would be as these adapters are all supposed to be built to a standard. Sony has something different in theirs I think. I believe it is non-standard.
(There is no USB port on the tablet so clearly this is not what I meant!!)

3rd Party Charger
ice9111 said:
Anyone that owns the tablet will understand what I am saying. The charger cable comes in a 2 piece. A usb to proprietary connector lead and an A/C adapter. You connect the proprietary end of the cable to the tablet. You connect the full USB connector end of the the cable to the adapter. You plug the adapter into the mains and it charges your tablet.
What I am saying is that if I use an alternate A/C adapter (i.e. one that accepts a USB connection and is rated for 1.5 amps and 5V) it does not charge the tablet correctly. I can't see why this would be as these adapters are all supposed to be built to a standard. Sony has something different in theirs I think. I believe it is non-standard.
(There is no USB port on the tablet so clearly this is not what I meant!!)
Click to expand...
Click to collapse
From what I understand we should be able to use a 3rd party charger if it can supply at least 1.5 amps of current at 5VDC. The only limitations that I have seen is some of the 3rd party iPad chargers (USB plugs) won't work with some android devices so the USB standard must not be as standard as one would tend to think. If your charger is blinking and intermittently charging there is a good chance that it can't sustain the current that the tablet is trying to draw.

Related

NT does not charge via USB when connected to PC?

I have noticed the NT only charges when using the AC charger and not when connected to a PC like phones. It even has to use the cable it came with as normal micro usb cables do not work (not for charging anway). Is this right or is this posdibly a hidden setting somewhere I have missed?
romified said:
I have noticed the NT only charges when using the AC charger and not when connected to a PC like phones. It even has to use the cable it came with as normal micro usb cables do not work (not for charging anway). Is this right or is this posdibly a hidden setting somewhere I have missed?
Click to expand...
Click to collapse
The computer does not provide enough amps to charge it. The first day I got mine I plugged the usb into a phone wall charger and it indicated it was charging but didnt seem to be increasing charge. I left it overnight and when I woke up i checked the charge...it didnt budge. I looked at the two wall chargers. The phone charger is a 1 amp charger while the nook charger is 1.9amp. Considering a usb from the computer only provides .5 amps there is no way it will charge.
This is the same as the nookcolor. They use the same charger and have the same limitations.
Sent from my NookColor using Tapatalk
In addition to the current difference, the cable that comes with the NC or NT has a different MicroUSB end. It is a little longer to reach the higher current pins. There are several discussions in the NC Accessories forum that go into the details.
The NC can charge via pc, as long as the usb hub is powered, or the usb ports are powered, with the provided cable micro usb cable.
Other tablets can charge over .5amp USB so it should work on the NT unless they intentionally designed it to be limited. The Lenovo ThinkPad tablet and iPad both worked via .5amp USB. Just very slowly (had to put iPad in sleep mode).
EDIT: iPad 1 for clarification, never owned the second.
Sent from my Nook Tablet using Tapatalk.
I have a newer motherboard (Gigabyte Z68XP-UD4)
when I plug my Nook Tablet into the front USB, it doesn't charge. But I just plugged it in at about 80% power into the rear USB that was red and labelled "3x USB Power" and it charged WHILE I was transferring files.
I didn't know it was charging until I plugged it into the AC and it showed 100%.
I can confirm it with video evidence if you need it because I'm not one to spread misinformation.
My Giga X58A-UD7 will charge mine too. The option must be enabled in The BIOS in order for the additional Amps to be dispensed. And, it will only work on the onboard (rear) USB ports.
Am I correct in thinking that the USB Standard must include a provision for optional high power pins that may not be present in all USB cables - or chargers?
If I have a standard microUSB cable, can I use my 3x port to charge my NT or do I need to use the special longer connector cable that came with the NT?
Another poster said the Nook USB connector was actually longer, so the high power pins would reach the recessed ones.
Bottom line - don't assume just any cable will work.
Are thenook color and tablet chargers the same? im looking to pick up a spare on ebay,
It's the same thing as the ipad. It will say not charging but it actually does just reaaaaaaaaaaally slow.
dermotti said:
Are thenook color and tablet chargers the same? im looking to pick up a spare on ebay,
Click to expand...
Click to collapse
They appear to be the same or at least work the same. I have one charger downstairs and one upstairs and the tablet and color charge fine on either one. Just make sure to use the B&N cable, unless you want to wait a while.
So does anybody know where we can pick up chargers cheap? I already have like 5 micro usb chargers and it sucks I cant use them.
AFAIK the NT and NC use the same power supply. My NC with CM 7.1 draws about 600-700 milliamps (according to the Battery Monitor Widget). I have successfully charged it from a PC using a standard micro USB cable. Here's the catch:
- when you connect the tablet to the charger it will turn on. Power down the tablet completely. It will then charge, but takes about 12 hours.

NT's 12pin USB cable is unique?

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!

Charging Adapters?

I've got around 4 different micro-USB AC Adapters that I have lying around. One is the OEM Lenovo, One is OEM Samsung (i777 charger + Samsung Micro-USB cable), one is a multi-USB port AC adapter with a micro-usb cable, and the last is an iPad 2 wall charger with a micro-USB cable.
ALL of the chargers except the OEM Lenovo ones don't charge my tablet. When It's plugged in, for a couple of seconds it says Charging (AC), and then it just switches to discharging. I've tried all the aforementioned chargers and cables in different combinations, and the ONLY ones to work correctly is the Lenovo combo.
Is there a specific reason to this? Also tried all 4 cables connected to my PC.. They all don't charge efficiently at all.
look at the Voltage and Amperage of the adapter !
Lenovo use 2A if I remember well, the other use only 1A
quyTam is correct... most USB chargers are between 500mA and 850mA. The dual battery design of the tablets requires a min of 2A to charge correctly. This is why most computer USB ports will not charge the device.
However... the changer isn't the only thing restricting the power. The cable you are using can also effect power. Not all cables are created equal.
I stopped by Staples just after getting my tablet and picked up a 4 port 2.1A USB wall charger. It will charge my phone, Bluetooth, and tablet. There are also really nice 2A "extra battery" devices out there that allow you to a charged battery with you that will power and recharge your device.
I also recommend the dock for the tablet... it has a 65w power supply and charges the tablet in a 1/3 the time then the usb chargers.
where to get a charger
i tried 2Amp chargers....didn't help/
my brother says:
"the pins are slightly different/off/longer/shorter/what DID lenovo do here?"
as a safety i bought:
http://www.ebay.com/sch/?_kw=886605022780&_clu=2&_fcid=100&_fvi=1&_localstpos=&_stpos=&gbr=1
just in case...
it costs an arm and a leg for a microUSB charger, but not charging the device for a couple of days would cost me more :S
just another things that makes the TPT slightly less then perfect
o,O
Charger
I use a Dell Axim x51 charger and an LG cable from an old phone. Seems to work very well and eBay prices for the charger are less than $4.
http://rootzwiki.com/topic/8523-rev...arger/page__st__40__gopid__448194#entry448194
In my experience a 1A charger will also work. Nothing less than 1A will do anything.
I keep my Lenovo charger in my home office and use a 1A phone charger next to my bed for overnight charging.
I too have a 4 port mains to USB charger: 2A but I thought it was distributed to the 4 ports. If all were being used then each port would only be .5A.
Will have to try it out. If it works it would lighten the travel load of chargers.
Gottoon said:
quyTam is correct... most USB chargers are between 500mA and 850mA. The dual battery design of the tablets requires a min of 2A to charge correctly. This is why most computer USB ports will not charge the device.
However... the changer isn't the only thing restricting the power. The cable you are using can also effect power. Not all cables are created equal.
I stopped by Staples just after getting my tablet and picked up a 4 port 2.1A USB wall charger. It will charge my phone, Bluetooth, and tablet. There are also really nice 2A "extra battery" devices out there that allow you to a charged battery with you that will power and recharge your device.
I also recommend the dock for the tablet... it has a 65w power supply and charges the tablet in a 1/3 the time then the usb chargers.
Click to expand...
Click to collapse
That's for sure. I thought the dock was a waste of money until I forked out on Amazon. Saves so much time it isn't funny....
Sent from my Nexus S using xda premium
The tablet needs to see 5.3 V, when using >500mA.
Already thinner USB-Cables increase the voltage drop
so the thinkpad wont charge, even with the original charger.
It may have less to do with your charger than with the cables. I bought extra long (6 and 10 ft) USB cables for charging phone and my TPT. The 28AWG of any length won't charge the TPT. The 24AWG 6 ft and 10ft cable *will* on a 2A charger. I haven't tried other combinations. I believe it will charge on a 1A charger as well, but would likely require the larger 24AWG cable.
Sent from my PC36100 using Tapatalk
Design Flaw in Thinkpad Tablet prevents Landscape Mode Charging for Developers
I actually sent my 1838-22U in for service, thinking that there was a hardware problem preventing charging while connected via USB. At first I had noticed that while connected directly to a PC via USB for development purposes (no docking station), the unit indicated that it was charging. However, it seemed to be discharging faster than it was charging and slowly worked its way down to unusable. Lenovo Tech Support indicated that they had heard of this happening, and that I should send it in to have its system board replaced. I sent it in only to find that all they had done was replace the battery and reload the firmware. I did notice, however, that when I connected the USB cable, it appeared to go into charging mode for a couple of seconds then switch into discharge mode. I asked Tech Support about this and they said they this was actually the way it should have been behaving all along, and that this was by design.
The User Manual (see attachment) states only that it might not charge, and that it will only discharge if the tablet "exceeds USB 2.0 power limits" (i.e. 500ma).
Well, the Thinkpad Tablet seems to be pretty good at doing that.
Here's where I present to the development community a conundrum. How can one develop in landscape mode while charging (even slowly)? In portrait mode, one can use the accessory docking station, which uses its own charger and charges through the proprietary connector next to the micro USB port, while separately allowing the USB to be used for data. In landscape mode, there is no such option. I will accept that the unit may draw too much current to charge well via a 500ma USB data connection, but then Lenovo should provide a optional charger that connects directly to the same proprietary connector used by the docking station. This is done elsewhere. For instance, Motorola realizes that the Xoom draws too much current to charge via a USB data connection, so they don't even bother with it - they provide a dedicated charger connection and charger.
==UPDATE== 25-May-2012
SOLUTION FOUND
The solution to using a data connection and charging the Thinkpad Tablet at the same time, without relying on the portrait-mode-only Dock Station, is to connect through a powered USB hub which supports the USB Battery Charging Specification (with a Charging Downstream Port). The specification provides at least 1.5A, which quite handily satisfies the Thinkpad. I found such a hub, the GWCTech HU2V40, on Amazon for $15.99.
If you get this model, note that only one of the 4 ports can be used for high-current charging. It includes a tiny "Smart Charger Adapter" but which appears to block the data connection (at least when when used with the Thinkpad). In other words, ignore the little black passthrough adapter included with it, and plug directly in as you normally would. The instructions don't explain the purpose of the passthrough adapter.
Hi everyone!
I just wanted to ask this: I just bought a 90W charger for my laptop. It is a "Targus Compact Charger for laptop and usb tablet"
It charges my laptop and also has that usb port which charges through a cable, compatible devices. Only that on that usb port, it says that it charges 2.1A, which is a lot. My phone charger does only 550mAh.
So the question, shouldn't I charge my phone through the adapter?
Thanks in advance!

[Q] Some Questions About Charging the S4 With My Car's USB Plug.

I've previously been able to charge my phones (a droid Charge and the S3) with the USB plug in car with out any problems. It was slower than the A/C charger, but got the job done. But recently, I noticed that the S4 was taking forever to add any charge to the battery when plugged into the car's USB (Its a 2012 Ford Focus with My Ford Touch). I tested the USB line with the "Galaxy Current Charging" App and saw it was only registering 460 mAh (which is the same as when the phone is unplugged). I also tested my cigarette lighter charger which showed 860 mAh. (BTW, I tested the USB cord using my 2 Amp stock S4 A/C charger and it showed 1900 mAh, so I don't think there is anything wrong with the USB cord, itself.)
So, is there a problem with using the standard USB plug in our cars to charge the S4?
Thanks in advance,
Rich
richs10 said:
So, is there a problem with using the standard USB plug in our cars to charge the S4?
Thanks in advance,
Rich
Click to expand...
Click to collapse
If you're really getting 860ma, you should be OK. The problem is that most 12v car adapters end up delivering about half that current. As you've already figured out, the S4 can accept up to about 2000ma (or 2A), but only when using a 5V/2A adapter (like the one that comes w/the device) AND only when using a compatible cable (use a non-stock cable with the AC adapter and you'll probably see more like 950ma than 1900).
You might want to try this Motorola auto charging cable http://www.amazon.com/gp/product/B000S5Q9CA/ref=wms_ohs_product?ie=UTF8&psc=1 . It's rated at about 1A, which is about half the level that the S4 can accept, but still pretty good. I haven't measured the exact output, but I can tell you that it's faster than any other car charger I've owned before.
You may also want to search online for an adapter that can achieve closer to 2A.
Andy:
I have that exact Motorola cigarette lighter charger and it works fine. My problem is trying to charge the phone in the car using the car's usb plug and a 'usb to micro usb' cord. That is where I have run into the problem with the S4. I could do this with my older phones, but the usb plug in the car only seems to supply the 460 mah with the S4. Any ideas why?
richs10 said:
Andy:
I have that exact Motorola cigarette lighter charger and it works fine. My problem is trying to charge the phone in the car using the car's usb plug and a 'usb to micro usb' cord. That is where I have run into the problem with the S4. I could do this with my older phones, but the usb plug in the car only seems to supply the 460 mah with the S4. Any ideas why?
Click to expand...
Click to collapse
Because the usb spec it wasdesigned under limits it to a maximum of 500 mA. It is a given that charging will be excruciatingly slow at that low of a current draw if it even charges at all.
Sent from my SCH-I545 using Tapatalk 4 Beta
richs10 said:
Andy:
I have that exact Motorola cigarette lighter charger and it works fine. My problem is trying to charge the phone in the car using the car's usb plug and a 'usb to micro usb' cord. That is where I have run into the problem with the S4. I could do this with my older phones, but the usb plug in the car only seems to supply the 460 mah with the S4. Any ideas why?
Click to expand...
Click to collapse
There's a product review on Amazon, where the reviewer provides a pretty good summary that might help explain. He claims that if the device does not 'recognize' the charging source with certainty, it may default to 500ma to prevent potential damage to the charge source (which could be e.g., a PC). The recommendation seems to be to use a special charging cable that would demonstrate to the device that a low-current source is not connected.
(here's an excerpt)
"...The USB power spec is for 0.5 Amps at 5 Volts... or 2.5 Watts. This was great up until the last couple years when devices have gotten really power hungry, particularly smartphones and tablets and to a lesser extent dedicated GPS's. Some of these devices use over 2 Amps, particularly the tablets like the iPad (or in my case the HP Touchpad).
Manufacturers of these devices therefore had a dilemma. If they had their devices pull more than 0.5 Amps, they risked damaging the power source, which could be a computer, that was only prepared to source 0.5 Amps. Thus the manufacturers have used tricks to determine whether their device is connected to an unknown source, at which point they purposely only draw 0.5 Amps, or to the dedicated charger that was provided with the device, where they can draw all the power they need.
There seem to be two common tricks used. The first is to short the two data-wires together in the charger. This is what most non-Apple devices do. Since a computer or older device wouldn't have done this, the device can assume it is safe to draw all the power it needs..."
In a subsequent discussion about the review, one of the commenters went on to recommend this charging cable - note that, per above, it's a 'shorted' cable, so it can only be used for charging (not data xfer). You might want to give it a try: http://www.amazon.com/gp/product/B003VYBCAY/ref=cm_cd_asin_lnk
That will not work if the source itself is limited to 500mA. The shorted data pins on the cable only allow the PMIC to draw a higher current if the source is capable of providing it.
Sent from my SCH-I545 using Tapatalk 4 Beta

HDMI adapter cable for pro 10.1

I bought this hdmi cable from amazon: http://www.amazon.com/gp/product/B00K61OB6C/ref=oh_details_o00_s00_i00?ie=UTF8&psc=1
I hooked up the tab to the tv, cranked up netflix and nothing. I plugged in the power adapter and got a picture. So needs charger to plugged in to work. I wasn't real keen on the output, but was only testing for connectivity. Might come back and edit after I have chance to adjust settings.
Today, I plugged the cable into the second hdmi port on my tv and it does mirror the tab display. Good response time too.
The charger is necessary but it does not charge the Tab. Left it plugged in and battery was down to 38% before i noticed.
Maybe a hardware error? Because under features it's described that it will charge your device...
burningstep said:
Maybe a hardware error? Because under features it's described that it will charge your device...
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Probably not a hardware error. I'm on my 3rd dongle that's supposed to charge your tablet while using connected devices. The latest is this one: http://www.amazon.com/E-More%C2%AE-Multi-functional-Connection-Reader-Samsung/dp/B00K80C9CE/ref=sr_1_8?ie=UTF8&qid=1403104007&sr=8-8&keywords=HDTV+HDMI+Adapter+Cable+USB+OTG+Card+Reader
Everything works except for charging the tablet. Have a red X on the charging symbol while the battery continues to drain. It does charge the tablet while it's off. I have a power hungry Tab Pro 12.2 that has trouble maintaining a charge while playing a couple games with the stock 2 amp charger. I'm beginning to think that none of the HDMI dongles out there are capable of delivering the current necessary to run the larger tablets.
Ah, I see. It's because not enough power through the micro usb. You need 2A but this adapter's only delivering 1A.
It seems, there a no adapters with 2A...
I have a ton of usb chargers gathered over the years. Largest i have is only 5.1 volts. Tab has a large output. Wonder if other devices could be damaged using it or is output regulated by draw of whatever it is attached to? At any rate, i don't think any of the dongles or otg cables have a power source other than what is supplied by the tabs adapter. So are you thinking it is an issue with the pin configuration on the adapter? It is a 11 pin connector. Sure wish there was 1 standard for everyone instead of everyone having their own.
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It's not limitated by the pins, there are just for more or less possibilities for an interchange (at least a salesman told me that). It's limited by the inside electronical components. Maybe anybody out there to explain it better or correct my words?
If I remember correctly (it's been a couple years since I tested it), my S3 required the Samsung charger + Samsung wire hooked up to the HDMI (I have the Samsung HDMI adapter) to charge the device while mirroring the screen. I tried it with a more powerful power adapter (2.1 amps vs Samsung 1.x amps) and generic wire but the phone would lose power over time. I could even charge the phone while mirroring if I used a generic Samsung wall charger and Samsung cord that was listed as 0.8 amps.
I bought the official Samsung one a few weeks ago and it is working fine, it also charges the device while using it but you have to connect a charger to the MHL-HDMI adapter.
Sadly I recently flashed CM11 on my TabPRO 10.1 and now the adapter doesn't work anymore. I get picture but no sound Was so happy about getting CM11 official on my device, but this feature is something I can't live without so I'm going to have to hop back to stockbased
HDMI doesn´t work
Hi guys! I´ve bought this one adapter dhgate.com/product/1-1-mhl-11-pin-micro-usb-to-hdmi-cable-hdtv/163941539 I know is not the original one but doesnt work!!!! I did all the steps but nothing. Any idea?? I have installed the original ROM on my galaxy tab t520. I need help!!! Thanks
Hey everyone, so just reading all the comments regarding the HDMI adapter not charging your tab while it is plugged in with the charger, I have also had issues with it and also with my Note2 and the Samsung Smart Dock I use with it. But I did however manage to find the solution to why it would not charge while on the HDMI dock that is connected to my T.V. It seams that if you plug either the Smart Dock or even the HDMI connectors to the HDMI cable first then plug in the charger it will show its charging but will eventually lose charge while outputting an HDMI output, instead, you need to first plug in the charger cable into your HDMI adapter, then plug it into your phone or tablet and finally plug in the HDMI cable into the adapter, I have found this to be the way to keep my phone and tablet charging while also having the HDMI output connected to my T.V..
Hope this helps .

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