Related
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?
Click to expand...
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
When I plug in my Infinity to start transferring stuff from my computer...it doesn't charge. I don't remember if I read if it worked or not? Anyone want to confirm? I know someone said something about the dock not being able to charge, but the tablet should.
KilerG said:
When I plug in my Infinity to start transferring stuff from my computer...it doesn't charge. I don't remember if I read if it worked or not? Anyone want to confirm? I know someone said something about the dock not being able to charge, but the tablet should.
Click to expand...
Click to collapse
I don't think the USB on a computer is powerful enough. My old iPad couldn't charge from a computer either.
Sent from my 3d porn machine.
Someone in the TF300 section mentioned that theirs would only charge from USB if it were completely off, and even then it charged pretty slowly. I wouldn't be surprised if the 700 were the same.
Mine charges when I hook it up on the USB port of an Ubuntu machine. But very slowly since the current is low.
I've heard a lot of different tablets don't charge via USB. That sucks...it just drains away battery while sitting there copying, slowly might I add, via MTP. I'm charging it now...I'll let it sit and transfer some more after a full charge.
Same, no charging from laptop.
I'll live though
wolfman87 said:
Same, no charging from laptop.
I'll live though
Click to expand...
Click to collapse
Well unfortunately the only way to move large files to my tablet is via MTP and if my battery is getting low then I'm screwed lol.
Sent from my ASUS Transformer Pad TF700T using xda app-developers app
KilerG said:
Well unfortunately the only way to move large files to my tablet is via MTP and if my battery is getting low then I'm screwed lol.
Sent from my ASUS Transformer Pad TF700T using xda app-developers app
Click to expand...
Click to collapse
Yea, I had about 24% battery when I rooted and it was worrying me to since it wasn't charging at the same time. Then I realized that 24% on a tablet is a lot more than 24% on a phone. Whew!
I hope it was not a dream but i plugged my tablet on my laptop and, while it was in halt mode (thus not power off per say), it charged itself up to 100%. So basically, my answer would be that it does charge itself on a computer, but it is far from being enough to cover both the use of a tablet and the charging process. And btw, since mtp is awful-as-hell slow, shouldn't we use like ftp servers or through-ssh transfers ?
Ralganaziel said:
I hope it was not a dream but i plugged my tablet on my laptop and, while it was in halt mode (thus not power off per say), it charged itself up to 100%. So basically, my answer would be that it does charge itself on a computer, but it is far from being enough to cover both the use of a tablet and the charging process. And btw, since mtp is awful-as-hell slow, shouldn't we use like ftp servers or through-ssh transfers ?
Click to expand...
Click to collapse
There are a couple of mentions in the manual regarding the USB charging.
The first one being "Ensure that your ASUS Transformer Pad is turned off before charging it via your computer's USB port."
And the second, "The ASUS Transformer Pad cannot be charged via the USB Dock cable when it is connected to the mobile dock."
So, I guess it proves that USB current is just not enough to sustain tablet's use and charge the battery at the same time.
sapienssapiens said:
Mine charges when I hook it up on the USB port of an Ubuntu machine. But very slowly since the current is low.
Click to expand...
Click to collapse
I know what you meant, but can't help noticing it should be about the speed of light anyway...
Some of the newer tablets are using usb3 charging plugs for the wall outlets. If you know some or have a usb3 port on a computer, you could try that and see if it charges faster than the us2 ports. The t300/prime/t700 all use usb3 plugs.
I transfer stuff by the micro sd card, adapter, and my computers card reader. It's not as convenient as plug and go but I'm usually transferring video files to watch at work and they are large.
Ralganaziel said:
I hope it was not a dream but i plugged my tablet on my laptop and, while it was in halt mode (thus not power off per say), it charged itself up to 100%. So basically, my answer would be that it does charge itself on a computer, but it is far from being enough to cover both the use of a tablet and the charging process. And btw, since mtp is awful-as-hell slow, shouldn't we use like ftp servers or through-ssh transfers ?
Click to expand...
Click to collapse
I thought that MTP was already bad, but adding the slow I/O on top of it is painful. What's the best way to transfer stuff?
Sent from my ASUS Transformer Pad TF700T using xda app-developers app
Some of the newer tablets are using usb3 charging plugs for the wall outlets. If you know some or have a usb3 port on a computer, you could try that and see if it charges faster than the us2 ports. The t300/prime/t700 all use usb3 plugs.
Click to expand...
Click to collapse
You hit the nail on the head. I think I saw someone here mention theirs would wall charge if they had used a usb extension with the wall charger - and it turned out that the extension was only usb 2 which prevented charging.
I posted a thread about this in the Q&A section.
Basically, from my own experiments and some other people's observations in that thread:-
If you are using the tablet while it is plugged into a USB port, the power will drain very slowly or maintain the same level.
If you plug it into a USB port and walk away, it will power up.
I left it plugged into a high power USB 3 port at 78% and left it for about 4 hours, when I returned it was at 97%. and it continued to read as "Not charging"
For some reason, when the tablet is plugged into a USB port, the battery info says that it's "Not charging" but it is.
I left it plugged into a high power USB 3 port at 78% and left it for about 4 hours, when I returned it was at 97%. and it continued to read as "Not charging"
-------------------
There is a small trickle effect of power which is why the manual says to have the tablet off. That trickle effect is what you are seeing. It could be a computer doesn't supply enough power to its usb ports regardless if it's usb2 or usb3. The wall adapter could be pulling more power in it's design. If you search amazon you can find non Asus data cables. I've used one on my prime after my cat chewed the original. I think it is like 6 bucks for the cable. I don't know there is an off brand product for the actual wall plug. But it's something to look into if your interested in having more than one recharging locations.
I'm not so sure that makes sense to me. 30% increase in power in 4 hours, seems like more than a small trickle effect of power, and doesn't the infinity manual says you can charge via USB.
Sent from my ASUS Transformer Pad TF700T using xda premium
USB is 5 volts. Asus Transformer uses like a 12 Volt Charger. On my TF300T, the pad would actually still lose battery life if I put it on performance mode (rooted 1.6 ghz overclock). On balanced it would depend on what I was doing. I imagine the TF700 is the same. On the plus side, because the charger is 12 volts, it also charges the battery a lot faster. Plugging in my ipad 2 into my iphone charger seemed to recharge so slowly.
I dont know about the tf700, but I downloaded the Asus Ai charger and i can charge the ipad2/3 and the ipad shows that its charging. It a different case when I tried plugging in the Asus transformer prime... nothing.. Its wierd and Asus charging program lets the ipad charge but not the prime.
pixel-painter said:
For some reason, when the tablet is plugged into a USB port, the battery info says that it's "Not charging" but it is.
Click to expand...
Click to collapse
This!
As much as I love this machine, its software is terrible.
I was planning on using my iPad charger to charge my phone, iPad, and TF700 while on the road. It puts out more than enough current at +5 volts but doesn't work with the TF700. The Asus charger outputs +15 and +5 and works with the Asus cable and an OEM cable, and also works charging my phone using a micro-B cable. Is the TF700 charged using +15 volts?
The TF700 booklet says it can be charged from a USB port, which is +5 volts. While that may be an impossible task on a PC, it still means that the TF700 can be charged using a USB cable and +5 volt charger. Why doesn't it work? Has anyone gotten a 2A +5V OEM charger to work with the TF700? Is there a pinout diagram for the Asus cable and charger anywhere? Thanks.
Not sure if this helps, but the keyboard dock (unlike the tablet itself) can only be charged from the charger, not usb, so it must draw more power than a standard usb.
It's also possible your Apple charger usb port is pinned to only work with "apple approved" products? Have you been able to charge other devices from it?
Sent from my ASUS Transformer Pad TF700T using xda app-developers app
phiffoo st o
Studiozut said:
Not sure if this helps, but the keyboard dock (unlike the tablet itself) can only be charged from the charger, not usb, so it must draw more power than a standard usb.
It's also possible your Apple charger usb port is pinned to only work with "apple approved" products? Have you been able to charge other devices from it?
Sent from my ASUS Transformer Pad TF700T using xda app-developers app
Click to expand...
Click to collapse
I don't have a dock nor am I trying to charge the TF700 from a PC USB port. The Apple charger puts out +5 volts to anything plugged into to it and the TF700 apparently "knows" when the Apple charger is connected to it because it turns on if it's off.
Haidozo said:
I was planning on using my iPad charger to charge my phone, iPad, and TF700 while on the road. It puts out more than enough current at +5 volts but doesn't work with the TF700. The Asus charger outputs +15 and +5 and works with the Asus cable and an OEM cable, and also works charging my phone using a micro-B cable. Is the TF700 charged using +15 volts?
The TF700 booklet says it can be charged from a USB port, which is +5 volts. While that may be an impossible task on a PC, it still means that the TF700 can be charged using a USB cable and +5 volt charger. Why doesn't it work? Has anyone gotten a 2A +5V OEM charger to work with the TF700? Is there a pinout diagram for the Asus cable and charger anywhere? Thanks.
Click to expand...
Click to collapse
It will charge VERY SLOWLY on 5v USB while turned off. Will not charge via 5v USB while on. The TF700 requires at least 12V/2A to charge while on. 15V/1.2A is what's recommended by Asus (based on their proprietary charger specs).
Here's a battery I use to charge my TF700 while on the go, and it also charges my phone, BT headsets and other devices. http://forum.xda-developers.com/showthread.php?t=1796750. Great battery, I highly recommend it.
AspenMan said:
It will charge VERY SLOWLY on 5v USB while turned off. Will not charge via 5v USB while on. The TF700 requires at least 12V/2A to charge while on. 15V/1.2A is what's recommended by Asus (based on their proprietary charger specs).
Here's a battery I use to charge my TF700 while on the go, and it also charges my phone, BT headsets and other devices. http://forum.xda-developers.com/showthread.php?t=1796750. Great battery, I highly recommend it.
Click to expand...
Click to collapse
You are correct. With the TF700 turned off, an hour of charging with the 2A Apple charger had increased the battery level from 29% to 34%. I expect the TF700 to be fully charged in only 14 hours!
Thanks.
Have you considered a power inverter? I use this one with my A100 though I use a FM transmitter to charge my phone.
Somewhat related to this: in the past, when using devices that have a power block with a USB port and a charge/sync cable, such as an iPod or even my Galaxy Nexus, I've used a USB extension cable to give me a little extra slack. For some reason, that doesn't seem to work with the Infinity. I've tried three different USB extension cables and the tablet never shows that it's charging. Is there a certain USB cable I can use for this?
AspenMan said:
It will charge VERY SLOWLY on 5v USB while turned off. Will not charge via 5v USB while on. The TF700 requires at least 12V/2A to charge while on. 15V/1.2A is what's recommended by Asus (based on their proprietary charger specs).
Here's a battery I use to charge my TF700 while on the go, and it also charges my phone, BT headsets and other devices. http://forum.xda-developers.com/showthread.php?t=1796750. Great battery, I highly recommend it.
Click to expand...
Click to collapse
I have that same exact charger. do you use the "I" or the "S" USB port?
I never knew what the difference between the two were
EDIT...i shouldve read the thread lol...you modified yours
I ordered a pair of cables from eBay item # 320942102464. A house charger and a car charger. I just plugged in the dock and seems to be working fine.
USB 3.0?
FrontRowJoe said:
Somewhat related to this: in the past, when using devices that have a power block with a USB port and a charge/sync cable, such as an iPod or even my Galaxy Nexus, I've used a USB extension cable to give me a little extra slack. For some reason, that doesn't seem to work with the Infinity. I've tried three different USB extension cables and the tablet never shows that it's charging. Is there a certain USB cable I can use for this?
Click to expand...
Click to collapse
Are you using a USB 2.0 or 3.0 extension cable? It's my understanding that the Infinity uses USB 3.0.
You need 15v to charge the Pad (I kept thinking 11, but the adapter says 5V or 15V output). This makes sense since there are more pins. Standard USB has 5v rails (ther are 4 pins, I 5v power, Data+, Data-, ground). Since our chargers are 40 pins, my assumption is that there are more pins dedicated to charging and multiple pins dedicated to data (possibly a few that are dedicated and some that are for whatever data is being passed through (assumption)). If the adapter is outputting 11v then it can send more power through the cord and multiple pins can push electricity through. When you are only pulling 5v (i.e. most AC->USB transformers) you will need a lot more time to charge, hence the trickle effect (and don't turn on the screen!)
It can be charged with 5v if the tablet is off.
There is a jumper in the USB cable itself that kicks the Asus charger into 15v mode so it doesnt accidentally fry your devices if you plug in, say, your cell phone to charge for a bit.
To make a custom cable just throw 15v across three pins in the connector (5v each). You can find all the info here: http://forum.xda-developers.com/showthread.php?t=1633747
Yes, i know its for the prime, the connector is exactly the same, the pinouts SHOULD be identical.
DIY approach?
I've got a TF700T and a TF201 dock and a misplaced charger. I ran into the same trouble that a lot of people here did ....... generic chargers not working, USB on my computer only trickle charges the tablet, nothing for the dock, etc.......
After much poking around I learned that both require 12 volts to charge. That said I dug thru my junk and found a 2.2a 12v DC wallwart. I hacked apart a USB extension cable for it's female end, broke out my breadboard and put together a 12v USB connector... that after several days of charging and draining.... charging and draining .... works like a champ.
So to be a bit more specific, pin 1 that's normally 5+ volts I'm supplying 12+. Pin 4 is ground same as always and that's it. If you wish let me know I can probably throw up a little illustration or something.
Since I did that I've refined the whole thing a bit, cleaned it up, wired everything directly and heat shrinked the whole assembly.
It will charge both together or either one by itself in just hours EVEN while using them..... heavily. No overheating, no troubles.
HTH
AnakiMana said:
Are you using a USB 2.0 or 3.0 extension cable? It's my understanding that the Infinity uses USB 3.0.
Click to expand...
Click to collapse
I think the cable type might only matter after the ics.30 update when I was on the ics.26 I could use a standard extention cable, I had my device plugged in when I updated and my device stopped charging, and I freaked out thinking I broke something. But after finally removing the extention my tablet would charge. I have not tried to use the extention cable since so I don't know if it works with jb.
Asus Transformer Infinity running CleanRom 2.7.x
Bluemgt06 said:
I think the cable type might only matter after the ics.30 update when I was on the ics.26 I could use a standard extention cable, I had my device plugged in when I updated and my device stopped charging, and I freaked out thinking I broke something. But after finally removing the extention my tablet would charge. I have not tried to use the extention cable since so I don't know if it works with jb.
Asus Transformer Infinity running CleanRom 2.7.x
Click to expand...
Click to collapse
The Asus charger switches its output to 15V from 5V when a USB3 plug is detected. If you need an extesion cable to charge the Transformer, you'll have to use USB3 extension cable. If you want to use this charger on other devices, be sure to use a USB2 cable to not to fry it with 15V.
Kraka said:
If you want to use this charger on other devices, be sure to use a USB2 cable to not to fry it with 15V.
Click to expand...
Click to collapse
Thanks for the warning - I hope there are no cables with USB3 and micro-USB2 plugs though.
I am having the weirdest problem on my Asus Transformer TF101 . I had updated to ICS via ASUS's check update option and then it stopped charging at all ( I do not have the dock, just the wallwart) .... . It would not charge ( not even show a charge flash symbol on the battery ) when the tablet is on AND plugged in..It would ONLY charge with the Wallwart when the tab is completely shutdown .i.e. I would have to shutdown the tab completely and then plug it in so that it can trickle charge over night to +80%. I changed the cable , changed the wall wart same issue... Then I thought its possibly a sw issue so I resetted , wiped caches, reset battery stats and even upgraded the sw to a Rayman's CyanogenMod 10 ♦ B4 ( currently running it ) .. Now I can at least see a small charge flash symbol when the tab is plugged in but instead of charging the tab , when I look at the battery status it shows discharging.... I can only charge this dang thing when its completely shutdown.. I still think its a sw issue.. Wondering anyone else had this issue and more importantly what is the fix ?? ..
Fixes I found in the forum that I've tried so far :
1. check/uncheck the stay awake option
2. Rooted ,installed Rayman's CM10-B4 rom
3. install dual battery app to check battery stats,( dont know why was this suggested as a fix )
4. wiped battery stats in recovery mode , thrice
5. changed usb cable
6. Put the charger/wallwart in freezer overnight and then check the charging ..
I'm outta warranty duration so desperately need to fix this on my own ..
You are using the ASUS TF101 supplied charger with its included cable, and nothing else? I.e. no extension USB cord etc.
The ASUS TF101 charges using 12-15V from the wallwart, not the standard USB 5V. Using standard USB, it's only able to trickle charge during power off, and this sounds exactly as what you are describing.
I had the same problem a couple of weeks ago. I even tried the freezer trick too in desperation as it was my last resort before admitting defeat in my battle with trickle charging. In the end I purchased this charger off ebay:
http://www.ebay.co.uk/itm/140714910102?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
I know it's advertised as a UK charger but if you read further down the page they ship the US and EU charger too. I've had it for about a week now and it works perfectly. I was dubious about buying a non Asus charger after reading reviews about them on Amazon about overheating but mine seems fine. If anything it's actually cooler than the original one.
kuisma said:
You are using the ASUS TF101 supplied charger with its included cable, and nothing else? I.e. no extension USB cord etc.
The ASUS TF101 charges using 12-15V from the wallwart, not the standard USB 5V. Using standard USB, it's only able to trickle charge during power off, and this sounds exactly as what you are describing.
Click to expand...
Click to collapse
I have tested with the same USB cable that came with it originally and the wall wart is original too. I changed the wall wart and USB to see if there's a difference but apparently none. Not using any USB hubs either...
michael_duvalle said:
I had the same problem a couple of weeks ago. I even tried the freezer trick too in desperation as it was my last resort before admitting defeat in my battle with trickle charging. In the end I purchased this charger off ebay:
I know it's advertised as a UK charger but if you read further down the page they ship the US and EU charger too. I've had it for about a week now and it works perfectly. I was dubious about buying a non Asus charger after reading reviews about them on Amazon about overheating but mine seems fine. If anything it's actually cooler than the original one.
Click to expand...
Click to collapse
Thanks for the suggestion mate , I already tried z different charger ---this one seems to be a sw issue'
r00txs said:
Thanks for the suggestion mate , I already tried z different charger ---this one seems to be a sw issue'
Click to expand...
Click to collapse
Sorry to disagree, but everything you describe sounds as a charger issue to me, not a SW issue. If it happens even with the TF powered off this makes me almost sure...
Sometimes it's good to start from the begining, although you think you have tried everything...
Get your TF, your asus original wall adapter and cable and try it. Does it work?
If not try another outlet on your house. Does it work?
If not, you may even try another outlet (work, school, whatever). Does it work?
If not exchange only the wall adapter (for another asus original one if possible) and start over.
If nothing changes, get back to your wall charger, change the USB charging cable and start again.
If nothing changes, change wall adapter + cable and start again.
Remember... The TF will only charge with the asus wall adapter and cable or a specific charger. If you try to use your computer's USB or a wall adapter from a phone / generic USB device you won't get any charge at all, and will only trickle charge when the TF is off.
CalvinH said:
Sorry to disagree, but everything you describe sounds as a charger issue to me, not a SW issue. If it happens even with the TF powered off this makes me almost sure...
Sometimes it's good to start from the begining, although you think you have tried everything...
Get your TF, your asus original wall adapter and cable and try it. Does it work?
If not try another outlet on your house. Does it work?
If not, you may even try another outlet (work, school, whatever). Does it work?
If not exchange only the wall adapter (for another asus original one if possible) and start over.
If nothing changes, get back to your wall charger, change the USB charging cable and start again.
If nothing changes, change wall adapter + cable and start again.
Remember... The TF will only charge with the asus wall adapter and cable or a specific charger. If you try to use your computer's USB or a wall adapter from a phone / generic USB device you won't get any charge at all, and will only trickle charge when the TF is off.
Click to expand...
Click to collapse
Same problem and all i did was get a new asus charger and bam charging, thank you soooo much omg my tablet has been messed up for so long thank you.
Charging Problem
I'm using the original charger and yet the Dock will not charge and the TF101 won't charge unless i shut it down
rnahlawi said:
I'm using the original charger and yet the Dock will not charge and the TF101 won't charge unless i shut it down
Click to expand...
Click to collapse
Sounds like there is an issue that the charger is not recognizing that an Eee Pad is attached. Might be time for a new charger.
Hello all, I have the exact same problem. I received my Asus TF101 for Christmas last year. Then later I found out that you need it root it in order to upgrade the OS. I rooted my TF, then I upgrade it the OS from Honeycomb(4.0.3) to Jellybean(4.1.2), (4.2.2) A month later after upgrading the OS my battery drain faster and I can only charge the battery with my TF turned off. If I plugged the the charger while its on it, the battery says its not charging. I change the wall wart and the cable but the issue still persist. Please help!!!
Sent from my Transformer TF101 using xda app-developers app
jbusti75 said:
Hello all, I have the exact same problem. I received my Asus TF101 for Christmas last year. Then later I found out that you need it root it in order to upgrade the OS. I rooted my TF, then I upgrade it the OS from Honeycomb(4.0.3) to Jellybean(4.1.2), (4.2.2) A month later after upgrading the OS my battery drain faster and I can only charge the battery with my TF turned off. If I plugged the the charger while its on it, the battery says its not charging. I change the wall wart and the cable but the issue still persist. Please help!!!
Click to expand...
Click to collapse
Is the new wall wart you are using a genuine Asus wall wart? If it is just a tablet USB charger, that will not work as the TF101 needs 15 VDC to charge instead of the standard 5 VDC of USB. The Asus wall wart auto-detects and switches between the two voltages to allow it to be used for other devices as well.
Hi all,
I owned the Asus TF101 for more than 1 year (warranty expired).
And now my pad cannot charge anymore. I sent to the service, and they talked that mainboard need to be replaced :crying:
But, it still works fine, just cannot charge. I think the charger is broken and bought a chinese charger, but it can only charge a little (20-30%), then stop charging.
Do you think the mainboard is dead? I can believe i that.
Does anyone have this problem and how to fix?
Thanks.
chat2004 said:
Hi all,
I owned the Asus TF101 for more than 1 year (warranty expired).
And now my pad cannot charge anymore. I sent to the service, and they talked that mainboard need to be replaced :crying:
But, it still works fine, just cannot charge. I think the charger is broken and bought a chinese charger, but it can only charge a little (20-30%), then stop charging.
Do you think the mainboard is dead? I can believe i that.
Does anyone have this problem and how to fix?
Thanks.
Click to expand...
Click to collapse
You say you bought a Chinese charger, if by this you mean you bought at USB charger, it will work but very slow and only with tablet off. The TF101 needs 15V on the charge pin to work and the stock charger provides that when pin 7 is grounded by the tab. When pin 7 is not grounded, it provides standard 5V and will not charge well. Try several things. Put stock charger in plastic bag then in freezer for a few hours in case you tripped the over current protection. Take it out and let it warm up in bag then try charging. If that does not work, you can try get a Dynex video camera charger. It has various levels of output voltage on a usb connector. Set voltage top 11V and you should be OK. The TF uses a physical USB connector, HOWEVER the voltages in the connector as well as other signals ARE NOT USB compliant. This means a standard USB charger WILL NOT WORK.
Rumbleweed said:
You say you bought a Chinese charger, if by this you mean you bought at USB charger, it will work but very slow and only with tablet off. The TF101 needs 15V on the charge pin to work and the stock charger provides that when pin 7 is grounded by the tab. When pin 7 is not grounded, it provides standard 5V and will not charge well. Try several things. Put stock charger in plastic bag then in freezer for a few hours in case you tripped the over current protection. Take it out and let it warm up in bag then try charging. If that does not work, you can try get a Dynex video camera charger. It has various levels of output voltage on a usb connector. Set voltage top 11V and you should be OK. The TF uses a physical USB connector, HOWEVER the voltages in the connector as well as other signals ARE NOT USB compliant. This means a standard USB charger WILL NOT WORK.
Click to expand...
Click to collapse
No, I bought a charger like this:
http://www.amazon.com/POWER-ADAPTER-TRAVEL-CHARGER-TRANSFORMER/dp/B007LI1UOE/ref=sr_1_1?ie=UTF8&qid=1351734650&sr=8-1&keywords=asus+transformer+charger
Output: 15V, 1200mA
But, at the first time, my pad can charge up to 50% and then stop (not charge when shutdown also)
And now, it will not charge anymore, when I plug the charger, it's only charged 1 or 2 minutes and then stop.
I tried put the original charger to the freezer many time, but not fixed.
Try a factory data reset in the Android settings menu. If that doesn't work, see if you're power adapter can be taken apart (most can to handle international plugs). If so, clean all the metal points where the wall plug contacts the power transformer.
chat2004 said:
Hi all,
I owned the Asus TF101 for more than 1 year (warranty expired).
And now my pad cannot charge anymore. I sent to the service, and they talked that mainboard need to be replaced :crying:
But, it still works fine, just cannot charge. I think the charger is broken and bought a chinese charger, but it can only charge a little (20-30%), then stop charging.
Do you think the mainboard is dead? I can believe i that.
Does anyone have this problem and how to fix?
Thanks.
Click to expand...
Click to collapse
I had the same problem and found a solution:
It's not the cable, but the 2 pins inside the USB opening at the charger!
If you look inside at the top you will find two pins that suppose to fit in the two holes from the USB connector.
By pulling them in and out, these pins move up slowly until they dont fit in the holes anymore.
Grab a little screwdriver and move the pins a little bit back out by sticking the screwdriver behind them.
Reattach the USB cable...you'll be surprised!
A buddy @work bought a used TF101 so cheap ($179, B60 a few months back from Cowboom). It came looking great but just won't charge (is it why it was cheap ?). We tried the freezer trick, that didn't work. The cable was fine hooking up to the PC and would charge slowly from there ----> Finally the cause: it's the cable itself. I gave the man my spare cable (bought @amazon, 2 for $5).
Hic,
I borrow a new charger from my friend, and still not work. I tried reset many time, but nothing happened.
I think there is problem with the main or the charge port connector.....
Maybe I will try to open it. Mainboard replacement take about 200$ (from ASUS service), and I think buy a new one is better. Say goodbye to ASUS.
clicky007 said:
I had the same problem and found a solution:
It's not the cable, but the 2 pins inside the USB opening at the charger!
If you look inside at the top you will find two pins that suppose to fit in the two holes from the USB connector.
By pulling them in and out, these pins move up slowly until they dont fit in the holes anymore.
Grab a little screwdriver and move the pins a little bit back out by sticking the screwdriver behind them.
Reattach the USB cable...you'll be surprised!
Click to expand...
Click to collapse
Worked like a charm!
Sometimes the problem is less complicated than you might think
For greater clarity it's the two outside pins on the row of 4
Does not work for me - also the freezer thing...
My problem is irritating: Yesterday the Charger did not work at all. Then after many attempts to fix it (like freezer,...) I just put it into an Apple wallcharger - did not work either but then I used the Asus Charger and it worked.
Now it does not work - one more time...
Any suggestions?
theares2014 said:
Does not work for me - also the freezer thing...
My problem is irritating: Yesterday the Charger did not work at all. Then after many attempts to fix it (like freezer,...) I just put it into an Apple wallcharger - did not work either but then I used the Asus Charger and it worked.
Now it does not work - one more time...
Any suggestions?
Click to expand...
Click to collapse
The reason other chargers (like Apple) do not work is that they only output 5 VDC. The Asus wall wart outputs 15 VDC when an Eee Pad is detected, otherwise it puts out 5 VDC.
It could be a bad cord that one of the contacts is loose and it sometimes does not detect the Eee Pad.
frederuco said:
The reason other chargers (like Apple) do not work is that they only output 5 VDC. The Asus wall wart outputs 15 VDC when an Eee Pad is detected, otherwise it puts out 5 VDC.
It could be a bad cord that one of the contacts is loose and it sometimes does not detect the Eee Pad.
Click to expand...
Click to collapse
Thanks for your answer!
Yes, I noticed that too. I put it in a Apple Charger (is it normal that there is no charging remark on the display?) but then after doing this my Asus charger worked - for 5 hours
I am confused...
I have a new problem, my dock doesn't charge. It show the battery with 0 charge but when I connect the charger. It only charge up the tablet. Dock will remain at 0 charge. Any suggestions? I have try fully wipe & reinstall other rom but still having the same problem.
Sent from my Transformer running no name cm10.1 using Tapatalk 2.
Many users who have let their dock get to 0% have had this issue. There is a toggle switch in the dock that changes state when you get to 0% and does not always switch back when you charge it again. You can try opening the dock and changing the state of this switch and then it should charge after that.
Why it was designed this way, I have no idea.
frederuco said:
Many users who have let their dock get to 0% have had this issue. There is a toggle switch in the dock that changes state when you get to 0% and does not always switch back when you charge it again. You can try opening the dock and changing the state of this switch and then it should charge after that.
Why it was designed this way, I have no idea.
Click to expand...
Click to collapse
There's also a user that reported a "known bug" about it here, saying he was going to RMA it. Supposedly some docks are missing a part to make allow recharge at 0%. I can't confirm or deny it.
I'm having the same problem with my charger right now, it will only trickle charge from the ASUS provided adapter while the unit is off, and when the unit is on, it recognizes that it's plugged in to the charger, but does not charge for some strange reason. Is there a possibility that this is a hardware problem within the tablet? or is this a charger related problem?
nekoxandu said:
I'm having the same problem with my charger right now, it will only trickle charge from the ASUS provided adapter while the unit is off, and when the unit is on, it recognizes that it's plugged in to the charger, but does not charge for some strange reason. Is there a possibility that this is a hardware problem within the tablet? or is this a charger related problem?
Click to expand...
Click to collapse
Gonna answer this in a few days.
As you can see up on the page Ive got this ***** issue. I bought a new original asus charger for around 35 bucks, it will come the next days. Then I can tell you whether it is a problem with the charger - or not.
A fix which worked for me (for about 75%):
Connect the TF to a Apple wallcharger (so it should charge - doesnt do it at all - everythings good). Wait like 10 minutes then you can reconnect it to the Asus charger. If this doesnt help: Strech the cable a bit while "charging".
I had the same issue when I bought my "charge cable" come to find out it didn't work because it was more of a sync so it would mainly sync to PC or device it was connected to then I leave it plugged in over 24hrs and maybe get about 52% of charge ... I bought a charger from Amazon works like a charm and really cheap
This one I bought for tf101 works like a champ
Check this out on AMZN:
US POWER ADAPTER WALL TRAVEL CHARGER FOR ASUS EEE PAD TRANSFORMER TF101 TF201
http://www.amazon.com/dp/B007LI1UOE/ref=cm_sw_r_an_am_ap_am_us?ie=UTF8
Sent from my SGH-I747 using Xparent Cyan Tapatalk 2
crashpsycho said:
I had the same issue when I bought my "charge cable" come to find out it didn't work because it was more of a sync so it would mainly sync to PC or device it was connected to then I leave it plugged in over 24hrs and maybe get about 52% of charge ... I bought a charger from Amazon works like a charm and really cheap
This one I bought for tf101 works like a champ
Check this out on AMZN:
US POWER ADAPTER WALL TRAVEL CHARGER FOR ASUS EEE PAD TRANSFORMER TF101 TF201
Click to expand...
Click to collapse
I've heard that it's better to NOT buy this charger because the voltage makes the touch digitizer screwy, and can cause battery damage in the long run.
Asus TF301 - charging problems
clicky007 - I just wanted to say a BIG THANK YOU - I 'tweeked' the contacts and my ASUS is charging again. Just as back ground, I had always used the ASUS charger and cable together. I have only unplugged the USB connector a few times, as few as 6 (guess-timation). Not exactly a high level of uses/insertions. Poor quality Asus!
Anyway - Many thanks to Clicky007 and Forum-xda
clicky007 said:
I had the same problem and found a solution:
It's not the cable, but the 2 pins inside the USB opening at the charger!
If you look inside at the top you will find two pins that suppose to fit in the two holes from the USB connector.
By pulling them in and out, these pins move up slowly until they dont fit in the holes anymore.
Grab a little screwdriver and move the pins a little bit back out by sticking the screwdriver behind them.
Reattach the USB cable...you'll be surprised!
Click to expand...
Click to collapse
clicky007 said:
I had the same problem and found a solution:
It's not the cable, but the 2 pins inside the USB opening at the charger!
If you look inside at the top you will find two pins that suppose to fit in the two holes from the USB connector.
By pulling them in and out, these pins move up slowly until they dont fit in the holes anymore.
Grab a little screwdriver and move the pins a little bit back out by sticking the screwdriver behind them.
Reattach the USB cable...you'll be surprised!
Click to expand...
Click to collapse
surprisingly enough this fixed my charging problem as well. At first I couldn't identify these two pins that you mentioned but for anyone else having the same issue I had. looking at the charging port on the TF with touchscreen facing up and back of the TF down the pin is not on the middle bar with the multiple connectors but it's it's attach to the top part of the port as illustrated by the tilda in my badly drawn diagram below and dashes representing the middle connector bar
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