I'm surprised there isn't a stickie on this ... it's been talked about here and there.
So I verified I, too, had the power draining problem on my dock ...
- Charged both tablet and Dock to 100%
- Connected tablet to dock, closed the lid and let it sleep
- 8 hrs later, my tablet's battery is at 99%, dock is down to 3%
So the dock's battery has been completely drained while the tablet is 'sleeping'. Of course if I just let the tablet sleep on its own without the dock connected it wouldn't drop more than 5% in 8 hours.
To do a little experiment, last night I POWERED OFF my tablet and connected it to the dock before I went to bed. The tablet was at 73%, dock at 100% then. When I woke up this morning, tablet's at 100%, dock is at 73%.
So it seems like the dock was charging the tablet, and when the tablet's fully charged, it stops draining from the dock - exactly how things SHOULD work! Only problem is this only happened with the tablet powered off.
So seems to me it's a software / firmware problem with the tablet and how it uses the dock to charge itself ... it basically continues to drain the dock even when it's already fully charged.
I do want to confirm if EVERY dock is having the same draining problem? In other words, does anyone out there has a dock which does NOT drain the tablet when the tablet's in sleep?
I will report to Asus but seems like Asus already knows about this issue? And I'm not sure what an RMA would do if it's a known problem that they haven't managed to fix vis SW/FW yet ... I'll get a new dock which will behave the same way?
I guess while filing the complaint I'll wait for Asus to come out with the firmware fix? Hopefully sooner than later. For now the get-around is if I am going to let the tablet sleep for a long time I'll either detach it from the dock or power off the tablet.
You should post your results here
http://forum.xda-developers.com/showthread.php?t=1112835
The draining issue seems to be fixed for many who got the newest batch (serial # starting B6OK). If you can return yours and buy a new one, it's probably a good idea.
Asus is aware of the issue .. see below
http://www.engadget.com/2011/07/13/asus-promises-fix-for-eee-pad-transformer-power-drain-keeps-the/
number16 said:
So I verified I, too, had the power draining problem on my dock ...
Click to expand...
Click to collapse
Okay, this might sound stupid. But are you sure your screen is turning off when closing the lid? And by that I mean, when it's fully closed.
Mine goes on again, just when the lid hits the bottom of the dock. You can only see it when it's dark, but I can tell you - it's draining the battery too.
I have the exact same problem too. So I keep them separate at night.
Asus said they are aware and are working on a fix.
I left my tablet in my car, in my backpack, away from the sun. It still managed to get some heat over a few hours and when I turned it back on it turned off after a second. After cooling it and connecting my charger it started working again.
Here is where it starts getting weird. It won’t charge. It says that it isn’t charging though I know it knows there is a charger connected. Every time I insert the charger it gets out of sleep, but no charge! What is even weirder is that the dock won’t charge now either. The tablet still recognizes the dock as well and I can type but it’s not very useful if I can’t get it to charge.
The charger was not in the car so there was no damage to that. I don’t want any feedback about what I should have done as I can’t afford another one so that would be utterly useless. I know that I shouldn’t have left it in the car in the first place, no need to mention it.
The Prime might have become totally discharged. I'd suggest trying to charge them for 24 hours...Plug them in and leave it alone and see if that solves the problem. Just to be sure there are no interaction problems, I'd suggest that each be charged individually.
Good luck,
Bob
Hi there,
After a few weird battery problems with my tf201 where it would only recharge at a drip-charge rate it finally came back to normal and started working again. Then the dock started acting up and wouldn't charge the tablet whist connected. After getting a new cable the problem still persisted so I am certain there's a real issue with the battery.
Now however the current issue is that it will only light up the screen for use whilst it's connected to the charger and power is flowing in! It's on full battery and will not show the screen after pressing the unlock button without the charger in. It literally flashes on every millisecond the chargers connected!
Any ideas of how I could fix this? Looks like i'll be sending it off to ASUS pretty soon unless somebody fancies buying it.
Michaellaverty said:
Hi there,
After a few weird battery problems with my tf201 where it would only recharge at a drip-charge rate it finally came back to normal and started working again. Then the dock started acting up and wouldn't charge the tablet whist connected. After getting a new cable the problem still persisted so I am certain there's a real issue with the battery.
Now however the current issue is that it will only light up the screen for use whilst it's connected to the charger and power is flowing in! It's on full battery and will not show the screen after pressing the unlock button without the charger in. It literally flashes on every millisecond the chargers connected!
Any ideas of how I could fix this? Looks like i'll be sending it off to ASUS pretty soon unless somebody fancies buying it.
Click to expand...
Click to collapse
Were you ever able to fix this? I am having the EXACT same problem. I believe replacing the charging port might solve it.
Unfortunately not
Larosche said:
Were you ever able to fix this? I am having the EXACT same problem. I believe replacing the charging port might solve it.
Click to expand...
Click to collapse
Unfortunately not pal, I took it apart to try and replace the battery and ended up damaging it more.
I just ended up selling what I could for spare parts.
Good luck with yours dude.
My apologies if this has been posted previously - but I cannot seem to find anyone who has had an identical issue...
My TF201 has worked perfectly since purchased - but in the last 4-6 weeks I have started to notice issues with battery life and as I have been busy with other more pressing issues I have simply been charging it more regularly and 'ignoring' the situation. However I have now realised that the problem appears to be related to the fact that the dock is not charging the tablet from it's battery reserve when the tablet is running low.
I have also noticed that when charging the unit it never gets a 'green' fully charged light on the dock and simply remains 'amber' irrelevant of how long it is left charging...
I have tried the 'cold boot' ('volume down' and power button for more than 12 seconds etc.) - which does initiate the cold boot but does appear to resolve the issue...
I have always charged both items docked and only use the original charger...
I have the same issue which started around the same time. I have also noticed that my dock is not charging although the tablet will while connected to the dock. The dock was at full battery when I noticed it was no longer transferring power to the tablet as the tablets battery got low. Now the dock is around 90% and does not increase regardless of how long it is left on charge. I have tried charging the dock by itself as well; still no luck. The tablet does indicate the dock is connected and the keyboard still funcions. This appears to be an issue with the dock battery being unable to transfer power whether from the plug or to the tablet. Any advise as to what to troubleshoot next would be appreciated.
Just started seeing the same symptoms this week. Guess this device is reaching the end of its road...
s44 said:
Just started seeing the same symptoms this week. Guess this device is reaching the end of its road...
Click to expand...
Click to collapse
I'm having the same issue, too.
I just noticed the same behavior this past week, after having owned the tablet+dock for almost two years with no problems.
The tablet just drains completely whether it's docked or not. The dock is holding a steady 77% charge but does not transfer this charge to the tablet when it's docked. The tablet charges normally when plugged in directly to the wall (using the original charger) or when docked and the dock is plugged in to the wall. The keyboard continues to function normally.
I haven't received any system updates recently either, so I can't think of anything that has changed in the software configuration to make this happen suddenly. Glad that it's happening to other folks and not just me! Has anyone tried a factory reset?
Update: tried the factory reset, but it didn't help.
I found some discussion over on the Transformer Forums, but unfortunately I can't post a link to it. Search google for "transformer forums faq definitive thread battery" to find it.
See for example comments #335, #340, #345-353.
The first post in that thread suggests a couple of things to try, including popping the charger into the freezer (I kid you not), doing a cold boot with the dock attached, and trickle-charging the dock off a PC's USB port. If all that fails, they say to contact ASUS for a warranty repair because it's probably a hardware fault.
I've tried all of those except the trickle-charge, and in addition tried a factory reset. I also opened up the dock, disconnected the battery and reconnected it, and reseated some of the other connectors on the board. Nothing has helped.
My dock is out of warranty (it's two years old) so I suppose that's the end of the road.
Same problem
I have a TF201 with dock that worked perfectly until mid October or maybe early November. After not finding a solution online and talking to ASUS several times I sent in my tablet and dock to have it repaird as they said it was a hardware problem. ASUS wanted nearly $300 to replace the motherboard! I said thank you, but please send it back. I don't believe there is motherboard problem because it is too much of a coincidence that this proble started after receiving the GPS dongle and trying it on the TF201.
The symptoms are
1. the dock doesn't fully charge
2. the tablet will not charge from the dock
3. The tablet will fully charge when the charger is plugged into the dock
Any suggestions are really appreciated. I have done cold boots, with and without the dock.
thanks
oldlawngnome said:
I have a TF201 with dock that worked perfectly until mid October or maybe early November. After not finding a solution online and talking to ASUS several times I sent in my tablet and dock to have it repaird as they said it was a hardware problem. ASUS wanted nearly $300 to replace the motherboard! I said thank you, but please send it back. I don't believe there is motherboard problem because it is too much of a coincidence that this proble started after receiving the GPS dongle and trying it on the TF201.
The symptoms are
1. the dock doesn't fully charge
2. the tablet will not charge from the dock
3. The tablet will fully charge when the charger is plugged into the dock
Any suggestions are really appreciated. I have done cold boots, with and without the dock.
thanks
Click to expand...
Click to collapse
Seeing the same symptoms here. Why on earth would they want to replace the motherboard? The tablet appears to be working just fine, it's the dock that's apparently screwed. And $300? Are they out of their ever-lovin' minds? So, were you out shipping one way, or two, if you don't mind my asking?
My solution was to buy a Note 10.1 2014.
Happening to me too:
Post copied from thread I made in error:
After suffering with stock jellybean on my Prime I decided to take the plunge and flash a custom rom.
I followed Matt Hill's guide on unlocking the bootloader and saving my back-ups. That went without a hitch. I then wanted to install the Hairybean 2.3.1 ROM but was still on flatline. I then flashed TWRP 2.5 and then again followed the hairybean install instructions to the letter. I used their supplied bootloader. That also went without a hitch and the Prime itself is running extremely well and I'm loving the new smoothness. When turning the machine on the Prime wanted to update the firmware on it which I declined. When I rebooted, it decided to update anyway. Still. Worked fine and was still silky smooth.
However. I have now noticed that my dock refuses to charge. If I plug the adapter into the dock and attach the tablet to the dock, the tablet will charge but the dock refuses to (even if the tablet is at 100%). I have tried removing the tablet and charging the dock on its own but it refuses. The light comes on the side, but doesn't indicate it is charging. Whats odd, is that when I plug the charger into the tablet and dock together, the widget shows the battery of the dock charges for a second, before then deciding not to. My tablet is at 100% but the dock is stuck at 16%.
Any ideas what might be causing this? Or how I can resolve it?
Thank you!
Volumex1 said:
My apologies if this has been posted previously - but I cannot seem to find anyone who has had an identical issue...
My TF201 has worked perfectly since purchased - but in the last 4-6 weeks I have started to notice issues with battery life and as I have been busy with other more pressing issues I have simply been charging it more regularly and 'ignoring' the situation. However I have now realised that the problem appears to be related to the fact that the dock is not charging the tablet from it's battery reserve when the tablet is running low.
I have also noticed that when charging the unit it never gets a 'green' fully charged light on the dock and simply remains 'amber' irrelevant of how long it is left charging...
I have tried the 'cold boot' ('volume down' and power button for more than 12 seconds etc.) - which does initiate the cold boot but does appear to resolve the issue...
I have always charged both items docked and only use the original charger...
Click to expand...
Click to collapse
Facing the same problem. Tablet charges fine while connected to dock, but dock fails to charge. Steady at 5%. It continuously flashes amber light when charger is plugged in. Tablet is out of warranty (about 20 months old), so not sure what to do.
has anyone found a fix for this? mine is doing the same thing dock doesnt seem to be doing its job by powering the tablet really love my prime dont want to have to go and buy a new tablet just because the dock wont charge it.
My wife and I own a TF201 and have found that out of the 2 chargers, only 1 works to charge the tablets now and the other doesn't, and it's all in the actual plug, not the cable.
I've tried a bunch of other android and USB plugs and nothing works to charge them at all.
Have been looking at getting a genuine replacement charger for it so that we can charge both at the same time instead of sharing, but it works for the moment.
You might want to try a new charger too?
Same problem
[Exactly the same problems. TF201 Keyboard won't charge although the tablet does charge when power plugged into keyboard - but to only 99%. When plugged in directly, it happily charges to 100%, therefore the assumption is that the tablet is working fine. The keyboard won't charge at all under any circumstances and it is now down to 43% charge left - Aaaagh!
Crazy thing is that my partner's TF301 is now exhibiting the same symptoms!
I, too, contacted ASUS and they informed me it would cost £45 + VAT just to inspect the 201 and then cost ??? for repair.
Reading the other forum entries it almost sounds as if ASUS have fitted an obsolescence chip!! Just too many coincidences here.
My response: I've recently bought a new ASUS Windows 8 Transformer - I must be mad!
I recently got this same problem, with the classic symptoms:
1. the dock won't charge
2. the tablet will not charge from the dock
3. only the tablet will charge when the tablet is docked and the charger is plugged into the dock
I tried all the tricks I could find on the interweb - cold boots, trickle charging overnight, I even put my charger in the freezer. I even tried a custom ROM (ok, I was planning to do that anyway )
ASUS wanted £45 just to look at it, so I took the plunge and ordered a new dock battery for £30 off ebay (shipped from china). It took a few weeks to arrive, but it has solved the problem! It's a 15 minute job to swap it over, and as I write this, the dock is now charging!!! :good:
If anyone else wants to try it, the dock battery code for my UK model is C21-TF201D. You will need a small phillips head screwdriver and a small Torx star screwdriver to get the dock apart, but it's easy enough. There are tutorials on youtube and plenty of how-to's out there.
So between a battery and a new ROM, it feels like a new tablet again!! :good:
Same Problem + bulging
I have the same problem with my keyboard dock. Now the dock looks bulging in the middle, I think because of the battery. Other functions except charging still works. I cannot flip close tablet and dock attached because of the bulging.
Since the waranty is over, is it possible the dock still works without battery (if I remove the battery)? I'm afraid the battery will explode if I keep using it in this condition. If this is possible maybe I will ask ASUS Service Center to remove the battery since I don't want pay extra money to replace the battery, last time they said its about 85 USD.
Dock registers to tablet, I can see battery level.
Dock Battery is not charging
Dock battery is discharging slowly
It's possible to charge tablet through Dock
I guess something is broken inside so I'm going to open it. I've seen many videos but they are not helpful in this case.
Does someone have experience? Is it possible that battery pack is broken itself?
Qermit said:
Dock registers to tablet, I can see battery level.
Dock Battery is not charging
Dock battery is discharging slowly
It's possible to charge tablet through Dock
I guess something is broken inside so I'm going to open it. I've seen many videos but they are not helpful in this case.
Does someone have experience? Is it possible that battery pack is broken itself?
Click to expand...
Click to collapse
Heyy have you opened it up? I am thinking about the same but currently, i have no idea what i would do with it
lukashino said:
Heyy have you opened it up? I am thinking about the same but currently, i have no idea what i would do with it
Click to expand...
Click to collapse
Yes. I just removed the battery and closed it again without it.
It's look like 2 batteries/cells are good itself but internal controller is brkoen somehow.
OK. I know this has been discussed many times before, but I can't seem to find an answer. I have tested the cradle extensively with digital testers and probes, the problem is not with the cradle nor is it with the contacts on the back plate of the watch itself. The watch just randomly refuses to charge no matter what the voltage of the battery is. The only way I can get it to start charging again is to pull the battery for a few minutes. the only thing I can think of at this point is it's some kind of software bug. it's happening more and more frequently, the battery is currently at 97% and it stopped charging again, popped the battery for a few minutes put it back together and bam! ... charging again! This is so frustrating anyone else had this specific problem? and again let me reiterate, it is not an issue with the cradle or the back plate of the watch.