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I have just bought up my transformer ( Love it ) but it's at about 10% battery right now... I take the cable that came with it (the usb one) and plugged it into my computer but it is not charging ? Any idea what's wrong with it ? when i plug it into the charging unit it works fine though
i've heard it has to be turned off for the USB charging to work....
Like off as in screen off or off as in complete off ?
It will not charge in your computer. You have to charge it in the wall.
Sent from my Desire HD using XDA Premium App
One of the pamphlets that came with it said the screen has to be off in order to charge it using a computer's USB port, cause the screen uses too much power and a USB port doesn't output as much, its best just to charge with the ac adapter. Nothing is wrong with your unit, thats just how it works.
Dark lord me said:
I have just bought up my transformer ( Love it ) but it's at about 10% battery right now... I take the cable that came with it (the usb one) and plugged it into my computer but it is not charging ? Any idea what's wrong with it ? when i plug it into the charging unit it works fine though
Click to expand...
Click to collapse
Turn off the screen and it will charge. (you don't need to turn it off; you just need a black screen) It is very, very slow though.
My wall charger never charged my tablet so I am awaiting a replacement. The USB charge is MUCH slower than the wall charge. We are talking about maybe 4-5% an hour -- max with the USB cable alone.
Connecting this thing to a computer will NOT charge it. Even a normal 5V 1.2A-2A charger won't charge it fast enough. I used a 2A charger and it trickle-charged for over half a day and managed to clock in @ 50pc. I think the unit uses hardware info from the ASUS charger to detect the charger. Any other charger wont do.
Isn't the cable and charger USB 3 and charging is at non USB 2 values (voltage and current).
Good amount of mis-info in this thread...
The unit *will* charge from computer USB, assuming the USB port provides enough amperage (not voltage). I have not yet measured out the amps used, but it's on my list of things to do...
In order to charge from computer USB, the display on the Transformer needs to be off. The unit can be on, but it must be asleep.
The adapter that comes with the transformer provides 15VDC via extra pins which loosely resemble USB 3.0. These are *not* USB 3.0 data/power specs, however a USB 3.0 extension cord could be used to lengthen the existing adapter.
Any USB car adapter should work to charge this in sleep mode, similar to a computer USB port. In order to "fast charge" in a car, however, you'd basically need to use an AC inverter with an ASUS Transformer adapter.
ChristoA1 said:
Good amount of mis-info in this thread...
The unit *will* charge from computer USB, assuming the USB port provides enough amperage (not voltage). I have not yet measured out the amps used, but it's on my list of things to do...
In order to charge from computer USB, the display on the Transformer needs to be off. The unit can be on, but it must be asleep.
The adapter that comes with the transformer provides 15VDC via extra pins which loosely resemble USB 3.0. These are *not* USB 3.0 data/power specs, however a USB 3.0 extension cord could be used to lengthen the existing adapter.
Any USB car adapter should work to charge this in sleep mode, similar to a computer USB port. In order to "fast charge" in a car, however, you'd basically need to use an AC inverter with an ASUS Transformer adapter.
Click to expand...
Click to collapse
Tried a 2.1A 5V charger. Took about 8 hours to charge @ 50pc. The ASUS charger is rated at 1.2A.
is the only way to plug the device into your PC or laptop via USB on the dock?
you cant use the proprietary charger cable to do USB data transfer with the charging cable USB component?
ie....to do data transfers via USB (not the memory card), the only way is via the dock?
makaveli25 said:
is the only way to plug the device into your PC or laptop via USB on the dock?
you cant use the proprietary charger cable to do USB data transfer with the charging cable USB component?
ie....to do data transfers via USB (not the memory card), the only way is via the dock?
Click to expand...
Click to collapse
No, one end of the charging cable is regular USB and the other end (tablet-end) is proprietary. You can transfer files over by connecting to your computer's USB.
awesome, thanks.
do you think that if you get a male/female USB converter, you could plug in a USB memory stick device or a mini hard drive device and have it work fine in the charging cable just like you would if you were to plug in a mini hard drive into one of the usb ports on the dock?
I wanted to know if it is possible to charge the ASUS transformer using a computer?
Is there any hack for it?
umasood said:
I wanted to know if it is possible to charge the ASUS transformer using a computer?
Is there any hack for it?
Click to expand...
Click to collapse
IIRC it will charge if the transformer is turned off but very slowly
Sent from my Transformer TF101 using Tapatalk
When I was driving the other day with it connected to the USB charger in the car (same as PC USB) and it got 4% in about an hour.
isnt this the biggest DOWN SIDE of TF.
Like this is such a basic feature these days that you should be able to charge your android device using PC usb/ charger etc.
I thought there would be some hacks for this. or is this a hardware specific lacking?
The USB plug on the Sync/Charge cable of the Transformer is a USB 3.0 plug. It uses the extra pins of the USB 3.0 for the electricity to charge.
umasood said:
isnt this the biggest DOWN SIDE of TF.
Like this is such a basic feature these days that you should be able to charge your android device using PC usb/ charger etc.
I thought there would be some hacks for this. or is this a hardware specific lacking?
Click to expand...
Click to collapse
I don't think this issue is specific to the Transformer. I seem to recall that the iPad comes with a high-current charger, and charges slowly if done via a computer. I think the issue is that the battery is much larger than any smartphone battery, and the USB port spec was created to power things like mice and USB memory sticks, and provides a low current. This way it also won't overload the host computer's power supply and cause stability issues on the computer.
nxt said:
The USB plug on the Sync/Charge cable of the Transformer is a USB 3.0 plug. It uses the extra pins of the USB 3.0 for the electricity to charge.
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Click to collapse
the extra wires in USB 3.0 cables are for higher speed transfers the voltage is still 5.0V the TF uses one of the wires to signal the power supply to provide 15V vs 5 V. The connector is not a true USB 3.0 If you want to charge mobile ,just connect the 12VDC from your vehicle to pins 1 and 4.
After reading this i put my transformer in the USB 3 socket and hey presto... trickle charge enabled! It doesnt say that its dojing it but mine went up from 95 - 96% in the 10 mins i had it pluged in (whilst on it)
mazimo said:
After reading this i put my transformer in the USB 3 socket and hey presto... trickle charge enabled! It doesnt say that its dojing it but mine went up from 95 - 96% in the 10 mins i had it pluged in (whilst on it)
Click to expand...
Click to collapse
Awesome, it would only take like 16h to charge it from empty to full then! ... compared to ~1.5-2h depending on use with the 15v charger.
But if you want to charge it from the PC, just hook it up to the 12v rail on the PSU (build a molex to usb adapter or similar)
Edit: what would be interesting though, is if you could charge and sync at the same time by connecting the data cables to a usb port, but keep the power cables hooked to the 12v rail. Or maybe the TF shuts down all sync stuff when its charging...
Just a quick update... After 6 hours if gone up to a whapping...... 76%
I guess it was just playing trick on me!!!! sorry to get peoples hopes up.
Go look at USB3.0 specs. You do not have the current and Voltage necessary to do anything more than a slow trickle charge. 3.0 os basically 2.0 with an extra pair of wires for faster data transfer not higher voltage. The connector on the TF charger is not wired to USB3.0 standards.
The AC adapter reconfigures itself when it recognizes the asus tablet and it gives 12v instead of 5volts. Just tried now and it's working.
so another charging problem. Tablet connects just fine to the pc with the cable but does not give any charge when connected to the wall socket charger. I thought maybe the adapter was a goner but went to my friends and tried with his cable on my adapter worked just fine. than tried my cable on his adapter and it wouldnt charge :S.. confused how can a usb cable stop transmitting all power but still connect to the pc :S? maybe the head is messed up.any ideas?
check there isnt any dirt on the connections on the cable. The connections are tiny and it will only take a spec to stop it connecting properly. Other than that its possible one of the voltage lines is broken in the cable but the data lines are still intact. Only a theory of course and if you have a DVM it will soon let you know.
Same thing happened to me. I called tech support they suggested to wipe the device. After trying other options I did a wipe but when it rebooted it didn't wipe but the tf did start charging after that... Perhaps that will help you?
Sent from my HTC Sensation 4G using XDA App
Asus uses a USB connector on it's cable, but it is not wired to the true usb spec. When plugged into a pc, it acts like a usb 2.0 cable and provides 5v to the tf. It also uses two conductors for data transfer. The 5v will sloooowly charge the tf it is off. When plugged into the wall adapter, the tf provides a gnd signal on pin 7 of the usb connector, this tells the adapter to provide 15v on the normal 5v pin. USB 2.0 only uses 4 conductors /pins. USB 3.0 has additional conductors normally used for higher data rates. If you use any extension on the usb cable it must be a 3.0 cable or pin 7 will be unconnected and you will not get the gnd signal therefore wall charger will only deliver 5v and a very slow charge.
Hey bighunko thanks fir the idea but i nvflashed the new primeon it and it still wont work. I think maybe the power lines a goner. Never seen thishallen before to a usb. I tried everything. Even freezing the cable. It only works in connecting to the pc:s
Sent from my Transformer TF101 using Tapatalk
I'm happy to say my TF is still charging! Sorry you can't get it to charge...
Sent from my HTC Sensation 4G using XDA App
When I connect my P6200 using usb, it doesn't charge, instead, there is an 'x' symbol at the battery. Is this normal? Because using my Galaxy Ace, it charges when usb is connected. I'm asking this because I'm trying usb tether for the first time, but in this case if it doesn't charge, it means that I can only usb tether until my battery has depleted and I would have to recharge again to be able to tether.
Yup. Usb is not able to charge tab and ipad. Need to plug to wall for charging
Sent from my GT-P6200 using XDA Premium App
Actually it does charge. More of a trickle charge tho. If the screen is off, then it will trickle charge a bit faster.
If the tab is connected via USB, will it at least be able to sustain itself via the USB power?
So if your battery is on 50%, and you keep the tablet on and are using it. Will it at least stay on 50% and not decrease slowly?
Samsung puts a resistor in their chargers so the tablet can distinguish between a Samsung brand charger and all other chargers.
The tablet will not charge (or use power from) any USB port except the wall adapter. (lame Samsung... really lame...)
You can buy adapters (or make them)
There's more info for creating an adapter yourself in this thread http://forum.xda-developers.com/showthread.php?t=845844
Just like the GT-P1000, P6200 is charging over the usb port of any pc, only when it is turned off. But anyway the charging process is much longer. Very useful when you don't heave the travel adapter with you.
i use this usb cable it work
It pulls a Max of 500mA from the USB or unknown charger. This will charge a tab plus with the screen off that isn't doing much. It will pull 1500mA from the Samsung wall charger.
Sent from my GT-N7000 using Tapatalk
My Plus charges normally from PC via USB. Icon shows 'x', but still in charging process anyway. It takes longer time but for those who tether should be ok and Plus should stay at least on the same level of %. I have unoriginal cable bought together with car charger.
I purchased a micro USB charger adapter from ebay. It just plugs into the 30 pin port and I am able to use my cell phone charger with no problem at all. The cell charger puts out 1000ma and the tab plus recognizes it. Do a search for P6200 Micro USB Charger Adapter on ebay.
If you are determined to use a computer to charge the tab plus, you will need the adapter above and a dual USB A to micro USB B Y cable. It will plug into two USB ports on the computer and give you the 1000ma to charge the tab plus. This is the best solution without having power cables all over your desk.
re
HEllo, where can I buy this cable?
thanks
cedricl said:
I purchased a micro USB charger adapter from ebay. It just plugs into the 30 pin port and I am able to use my cell phone charger with no problem at all. The cell charger puts out 1000ma and the tab plus recognizes it. Do a search for P6200 Micro USB Charger Adapter on ebay.
If you are determined to use a computer to charge the tab plus, you will need the adapter above and a dual USB A to micro USB B Y cable. It will plug into two USB ports on the computer and give you the 1000ma to charge the tab plus. This is the best solution without having power cables all over your desk.
Click to expand...
Click to collapse
Turn off your tablet... Only then its charging
Sent from my GT-P6210 using XDA
i just got this adapter from dealextreme for the p1000. it works perfectly fine for the p6200. i got my 2.1A charger to work and can charge of via USB port.
Thanks
Enviado desde mi GT-P6200 usando Tapatalk
or you can make it charge by requesting this feature in a custom kernel
Thanks
Yesterday I bought P6200 without charger, was using usb cable and it ws slow.
First I thought there might be some problems but this post helped me figure the cause
Reading the manual, it says after charging the first time, that the tablet can be charged by USB if there is enough power through the USB port. I put an extension between the Asus adapter and the proprietary cord, and it won't charge unless directly connected to the adapter. I have USB 3 port on my computer that gives out higher than standard power, and I have a USB port in my car, and this tablet won't charge on anything except a direct single asus wire connection to the Asus adapter. Is this correct? It seems that I may have a defective tablet.
Are there any other people having this issue.
USB 3.0
pixel-painter said:
Reading the manual, it says after charging the first time, that the tablet can be charged by USB if there is enough power through the USB port. I put an extension between the Asus adapter and the proprietary cord, and it won't charge unless directly connected to the adapter. I have USB 3 port on my computer that gives out higher than standard power, and I have a USB port in my car, and this tablet won't charge on anything except a direct single asus wire connection to the Asus adapter. Is this correct? It seems that I may have a defective tablet.
Are there any other people having this issue.
Click to expand...
Click to collapse
The USB extension also needs to be USB 3.0. Is the one you're using?
The extension was to the power outlet in the wall.
I wonder if the Asus chord is made for USB 3 then?
Sent from my brain to my hand to XDA
Is your extension just a USB extension or a powered USB extension? Maybe it carries data but not power? Can you charge other devices with the extension (and do they actually charge at a decent rate)?
Yes! I charge my htc sensation on it all the time. But I more than that, I am trying to find out if others are able to charge via the Asus proprietary USB cord to another source such as a computer or car etc.....
as opposed to using the wall power adapter from Asus
Sent from my brain to my hand to XDA
I also can't get the tf700 to charge with any adapter other than the supplied charger. I've tried 500mA, 1A and 1.9A (from a Nook color) USB chargers and none work.
Sent from my ASUS Transformer Pad TF700T using xda app-developers app
pearl62 said:
I also can't get the tf700 to charge with any adapter other than the supplied charger. I've tried 500mA, 1A and 1.9A (from a Nook color) USB chargers and none work.
Sent from my ASUS Transformer Pad TF700T using xda app-developers app
Click to expand...
Click to collapse
I am quite certain that it says in the user manual that it is possible to charge via USB, i don't have it with me at work, but can someone verify this.... it could be a major issue for some, and needs to be addressed. I know that the battery power at full charge is not going to last all day for me, and being able to charge via USB is really important since i am in sales so i do not have access to an electrical outlet, but i do have a USB port in my car.
Sent from my ASUS Transformer Pad TF700T using xda premium
I'll add my personal experience to this...
When I got the tablet I put in a basic USB extension cable between the tablet cable and the outlet adapter. I didn't notice for an hour or so that it wasn't saying it was "charging".
Except...in that hour the battery hadn't gone at all.
And with the screen off and left to its own devices it will charge to 100%.
So I guess the point is this, it may not say its charging but it is getting power. If you're using it as like an overnight charging thing, it should work just fine.
Doesn't the manual say that you need to power it off before changing over USB?
Splaktar said:
Doesn't the manual say that you need to power it off before changing over USB?
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Click to collapse
Thanks for pointing this out.
I'll have to check this out, but I hope one doesn't need to have to restart a tablet, just to change the power source. Kind of a pain
troa11 said:
I'll add my personal experience to this...
When I got the tablet I put in a basic USB extension cable between the tablet cable and the outlet adapter. I didn't notice for an hour or so that it wasn't saying it was "charging".
Except...in that hour the battery hadn't gone at all.
And with the screen off and left to its own devices it will charge to 100%.
So I guess the point is this, it may not say its charging but it is getting power. If you're using it as like an overnight charging thing, it should work just fine.
Click to expand...
Click to collapse
So maybe it is charging a little, even though it says it isn't. I think I will try this out and leave it for a few hours or overnight as a test.
pixel-painter said:
So maybe it is charging a little, even though it says it isn't. I think I will try this out and leave it for a few hours or overnight as a test.
Click to expand...
Click to collapse
So I plugged into the USB port and the power level was at 78%, I left it plugged in for about 5 hours and when i rechecked, it read 97%. The whole time it read as Not charging. This is good news, I really need that feature. It is interesting that it reads as Not charging, this must be a software error.
Sent from my ASUS Transformer Pad TF700T using xda premium
See this thread:
http://forum.xda-developers.com/showthread.php?t=1788055