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Is anyone else having an issue with charging? it worked fine for a week or more. now when i plug it in, to any outlet, it wont charge at all.. they are considering RMAing the entire unit, and im going to be torked off if i have to wait weeks to get another. argh.
just curious if anyone else is having charging issues.
thanks
My unit doesn't charge if the battery is above 90%. I see no problems there, what % is your battery at? That is expected behaviour to an extent to prevent overcharging of the battery.
Sent from my Transformer TF101 using XDA Premium App
Mine did that once and I just left it alone for awhile and it started to work again on its own.
i only noticed it because its asking me to connect to charger now.
so its at 11% right now.
Tech wanted me to trickle charge to see if i get anything out of it. Its not working.
Is there any lights on the adapter? i cant remember? but i think the unit may be bad.
SOOOOO pissed, now i have to wait weeks for a replacement to show up.
Has anyone else had a unit they have had to RMA??? is so, did they send a brand new one, sealed in box? if so, i have an extra here, ill just use it and sell the RMA one when it comes in.
thanks
EDIT: i had it trickle charging in the off position. just turned it back on. then plugged it in to wall. seems to be charging now.. WTH. wonder if its something with the dock?
Thanks
Hi
Nice to have found your thread on this - mine was doing the same thing after I had if docked. Connected it to my PC and synced and then put it back in the charger and everything is fine.
Weird.
Since you guys seem new to this forum, I suggest you read the stickies. The "Ultimate Transformer Information Thread" mentions some specific adapter issues you should be aware of.
http://forum.xda-developers.com/showthread.php?t=1068593
TF101 not charging after run flat issue - SOLVED
Hello
I also had this problem. The tablet drained the docking station dry, and then neither device would charge from the adapter.
I solved the problem as follows:
1) Remove table from docking station.
2) Turn tablet off completely.
3) Plug tablet only into the charger, at this point the tablet turned on, and began charging.
4) Allow the tablet to charge completely!
5) Reconnect tablet to docking station, and plug docking station into charger.
Voila, all charged Hope it works for others who have this issue!
Mine also had charging problems. When I charged it, it never reached 100%. I took it to the Asus repair center, and they called me today and said they got it to reach 100%. Also, above 90% it reports the battery status as full.
I also to them about the battery drain problem, and gave them my tablet with the dual battery widget installed. Told them to charge both the tablet and keyboard to full, dock the tablet, power off, and wait until morning to see the results.
I'll find out what happens tomorrow when I go see them in the morning.
TF101 not charging today...
It happened already once some time ago, but leaving the power adapter disconnected from the wall plug for 10min solved the problem.
Now it's happening again... and previous workaround is not working.
Tablet is TF101, no docking keyboard, last version of ICS installed.
I've checked the various threads for suggestions: of course I tried the various reboot options; the only thing I'm missing is the refrigerator, but the power adapter is cold (tablet is not charging since 2d, and battery is still alive...).
I've not checked the cable, but have cleaned with air the connectors (just to avoid dust inside).
Any suggestion is welcome.
Thanks
I have had my charger stop working twice in the past 6 months. Both times I put the wall adapter in a zip-lock bag and placed in my freezer for 30 minutes. Upon removing I plugged the usb cable back into the adapter and bam, everything was working fine again. From what I remember, there is a temperature sensitive circuit breaker inside the adapter that sometimes gets stuck. Even if the charger is cold or has been left alone it takes the dramatic temperature of the freezer to unsieze it. Good Luck it worked for me, twice.
So my co-worker has an Asus transformer like i do and he is on his 3rd charger for it. So i have been lending him mine while he waits for his new one. So last night he borrowed it and when i went to charge mine it no longer works. Are the chargers really this faulty or could it be his device that is killing the charger?
After charging my tablet for a while or overnight the charger does not work either.
So what I do is either wait it out or throw it in a ziploc bag and toss it in the freezer(I can't remember where I found this tip but it does work).
The charger gets excessively hot after 2 hours of straight charging and as a safety feature I believe it shuts off. Throwing it in the freezer simply resets the charger I believe, and it is only for about 15 minutes.
Sent from my Inspire 4G using XDA Premium App
betadan said:
So my co-worker has an Asus transformer like i do and he is on his 3rd charger for it. So i have been lending him mine while he waits for his new one. So last night he borrowed it and when i went to charge mine it no longer works. Are the chargers really this faulty or could it be his device that is killing the charger?
Click to expand...
Click to collapse
They definitely have different versions, the later version 0B-2LF, 0B-3LF (?) are supposed to be less failure prone.
You can always make a Do It Yourself (DIY) charger with a wall charger and USB A Female to 5525 Plug Female Power Adapter.
I’ve got similar experience – when I’ve tried to charge tablet second time after few hours of playing with it, when I’ve plugged charger in, icon didn’t show me expected “charging” icon. At first I’ve thought that was faulty cable but plugged to PC worked fine. Then I’ve found some info that connectors between charger and plug adaptor tend not to have a contact. I’ve taken out plug adaptor and bent slightly those 2 wires on charger, then connected the plug adaptor back. When I’ve plugged it into wall socket – it worked. I’m on 0L-1LF model.
I've encountered this problem too. At first I thought the charger was dead, but when I rebooted the transformer while plugged, it start to charge again. Maybe you should try that.
It probably still charges or has some charge optimization like my Lenovo laptop has. Mine does the same but never any issues.
Sent from my Transformer TF101 using Tapatalk
ThEiiNoCeNT said:
After charging my tablet for a while or overnight the charger does not work either.
So what I do is either wait it out or throw it in a ziploc bag and toss it in the freezer(I can't remember where I found this tip but it does work).
The charger gets excessively hot after 2 hours of straight charging and as a safety feature I believe it shuts off. Throwing it in the freezer simply resets the charger I believe, and it is only for about 15 minutes.
Sent from my Inspire 4G using XDA Premium App
Click to expand...
Click to collapse
I also did have to put my charger in the freezer... for over a month now it's been working fine.
Try it
Elzbieta said:
I also did have to put my charger in the freezer... for over a month now it's been working fine.
Try it
Click to expand...
Click to collapse
Another succesful "freezer" here.
To document - My powerstrip turn off with PC and charger is plugged in to it. Tablet was @ < 20% when I put on to charge, not realizing strip was off (company in town so wife wanted it off in case room was needed for kids), got up next morning and now tablet @ < 4%. Took charger and tried multiple outlets and none would charge and charger was not warm. Tablet @ < 4% and now plugged to USB port on laptop (recongized USB Debug and Asus Sync) so it is trickle charging sort of. Search turns up this (and a couple of others) tread. Turned off tablet (to improve trickle charge performance) and waited the 15 minutes. Removed charger from freezer, plugged into wall, plugged in tablet and tablet turned on and now shows as charging.
I assume this is a hardware/software/firmware problem in that the charger is not going to burn itself out trying to push too much voltage and the reduced charge state of tablet is raising resistence and the firmware has a pointer wrong and it needs to be a little colder to be right.
No idea but thanks for the tip.
I got kinda freaked out when my charger didn't work with my tablet last time. I blamed the custom rom since it happened a couple days after I rooted and flashed a custom rom on it, and I never had trouble with stock before. But, it wasn't the charger, since I plugged in the dock and it could charge. So maybe sometimes the tablet doesn't take in a certain amount of voltage or something..? (It was fine after I rebooted.. or update roms, can't remember.)
I once thought that my charger had died but then I tried a hard reset (hold the power button down for 10 seconds) and it started working again. It's worth giving it a go before you go out and buy a new charger.
Sent from my Nexus S using XDA App
betadan said:
So my co-worker has an Asus transformer like i do and he is on his 3rd charger for it. So i have been lending him mine while he waits for his new one. So last night he borrowed it and when i went to charge mine it no longer works. Are the chargers really this faulty or could it be his device that is killing the charger?
Click to expand...
Click to collapse
I think there is something off with his TF if it killed 3 or 4 chargers.
My charger died and no amount of putting it in the freezer or anything else would make it work again.
The only thing I did was pull the cable out attach the TF to my laptop and download files to a different Micro SD card I had bought. Plugged it back in and no workie.
Lucky I had bought another charger for a spare and had it to check the cable ..charger and make sure it what part actually wasn't working...and charge my TF.
It's at an ASUS service center hopefully being fixed.
They do go bad. Theres been documented problems with them just like the dock,, and tablet. When your trying to build the cheapest tablet around ...parts and some things provided by other manufactures ( I know Asus doesn't make everything that goes into it) don't always turn out as well as you've planned.
Man, this is pissing me off. I think my power adapter is bad. It won't charge the battery/keyboard dock or the asus anymore. Took me a while because I usually don't use the kb that much, but I don't see the flashing light when I plug it into the kb. Tried everything already, removing the tip and putting it back on. My KB is dead, zero juice left. My asus wouldn't power on either for a while, but now it has powered on long enough for me to plug it into the computer. The usb charging is taking forever but the asus did charge.
I'm looking for a power adapter and this thing is 45 bucks. What the hell....why so much. Anyone know of a cheaper deal. Hell, I should contact asus about this. Anyone got a replacement before? Are they good at responding.
nxp3 said:
Man, this is pissing me off. I think my power adapter is bad. It won't charge the battery/keyboard dock or the asus anymore. Took me a while because I usually don't use the kb that much, but I don't see the flashing light when I plug it into the kb. Tried everything already, removing the tip and putting it back on. My KB is dead, zero juice left. My asus wouldn't power on either for a while, but now it has powered on long enough for me to plug it into the computer. The usb charging is taking forever but the asus did charge.
I'm looking for a power adapter and this thing is 45 bucks. What the hell....why so much. Anyone know of a cheaper deal. Hell, I should contact asus about this. Anyone got a replacement before? Are they good at responding.
Click to expand...
Click to collapse
I'm waiting for one to come in from Amazon right now. My original never worked, so I've been charging my TF through my laptop's USB port.
I think mine was $30.
nxp3 said:
Man, this is pissing me off. I think my power adapter is bad. It won't charge the battery/keyboard dock or the asus anymore. Took me a while because I usually don't use the kb that much, but I don't see the flashing light when I plug it into the kb. Tried everything already, removing the tip and putting it back on. My KB is dead, zero juice left. My asus wouldn't power on either for a while, but now it has powered on long enough for me to plug it into the computer. The usb charging is taking forever but the asus did charge.
I'm looking for a power adapter and this thing is 45 bucks. What the hell....why so much. Anyone know of a cheaper deal. Hell, I should contact asus about this. Anyone got a replacement before? Are they good at responding.
Click to expand...
Click to collapse
do a search there is a large thread on replacement adapters.
http://www.officedepot.com/a/products/768723/Asus-Power-Adapter-For-Eee-Pad/
Rumbleweed said:
do a search there is a large thread on replacement adapters.
Click to expand...
Click to collapse
search for thread by Devcake
can't believe how cheap it is
Wow....I've never had a power adapter go bad before a device before. Ever. I got tons of phone adapters around and other devices. I just took a sniff of the adapter, smells like it's burned. Luckily there wasn't a fire. Why the heck so cheap. I didn't know so many people having problems with the adapter.
The charger has no margin built in and appears to be running on the edge of its capacity. To make matters worse people are using it to charge the tab and dock paired which just stresses the charger more. My suggestion: If yoy don't want to kill your charger charge the tab and dock separate with down time between and plug into an outlet that will allow air flow.
I charge my dock and tab every morning when i get up. (I watch videos from my server at night). I try to never use my tab while its plugged in so I'm not putting any stress on the cable. It's too freaking short to reach my outlet to where I sit. Mine has been plugged into the same outlet for 2 months and it takes about an 1 1/2 hours to charge both the dock and tab and then I use it the rest of the day and night. I usually charge them together but sometimes i will charge the dock by itself if I use it a lot during the day
same here, my charger wont charge normally, it takes long time to fully charge now.
What part of the world are you in? I just ordered a new adapter cause I needed a new cord. If you just need the plug maybe we can split the damage and I can send u the new plug and keep the cord?
What part of the world are you in? I just ordered a new adapter cause I needed a new cord. If you just need the plug maybe we can split the damage and I can send u the new plug and keep the cord?
I'm in houston texas. How much do you want for just the adapter, (if you are in close shipping area).
there is another thread on here for alternative power adapters if yours is broken
Mine stopped charging the dock and only once in a while charged the tablet about 8 weeks ago. It was sent back to Asus repair in Canada along with the tablet - they didn't fix or replace the charger as requested on the RMA and they broke the tablet power button as well so it can not be turned on/off in any event. So another RMA and another month of waiting.
As far as I'm concerned this charger is the perfect accessory for the poor quality Transformer hardware and garbage support I've received from Asus.
I do not understand why anyone would buy a second / or replacement ASUS power adapter. As I have stated before they are marginal at best. If your breaks or you want a second. see the thread started by Devcake and get the Dynex universal camera adapter. It can do your TF, Dock and much more and costs less.
Hi all,
I've searched the forums thoroughly and I couldn't find the solution.
I have a brand new transformer tf700 and keyboard dock tf201. They were purchased in the USA and brought over to me in Hanoi, Vietnam.
The charger will charge the tablet, but not the dock.
When the charger is plugged into the dock, there is no light. Also nothing happens when connecting the tablet and dock. No light on either, and the tablet does not enter a docked mode. So it seems like the battery on the dock is completely drained or the dock is simply faulty.
I've tried leaving it overnight for the initial charge (first thing I did), as well as different outlets and charging by USB.
Since the charger works on the tablet it seems obvious that the problem is with the dock, but is there any further troubleshooting I can do to confirm this 100%? Since I'm in Vietnam, sending the dock back for warranty etc.. is going to be very problematic and in fact its illegal for used electronic items to be shipped back into Vietnam. So I really want to know 100% for sure what the issue is. Vietnam is 220V / 50HZ and it seems the charger is rated for that.
I'm open to more advanced options such as using a multimeter.
Thanks.
bump
It could be that the charger was meant for a newer version of the dock. Your using a TF700T charger with a TF201T dock.
It could just be a compatibility issue. If so just buy a TF700T dock or buy a TF201T charger. I hope this helps.
ostar2 said:
It could be that the charger was meant for a newer version of the dock. Your using a TF700T charger with a TF201T dock.
It could just be a compatibility issue. If so just buy a TF700T dock or buy a TF201T charger. I hope this helps.
Click to expand...
Click to collapse
Very unlikely. I regularly charge my TF700 with the TF101 charger, and I am almost sure the TF201 uses the same charger.
_that said:
Very unlikely. I regularly charge my TF700 with the TF101 charger, and I am almost sure the TF201 uses the same charger.
Click to expand...
Click to collapse
Perhaps, the docks power supply died. Which would mean either buy a new dock or send it in for warranty.
ostar2 said:
Perhaps, the docks power supply died. Which would mean either buy a new dock or send it in for warranty.
Click to expand...
Click to collapse
Well I need to test this 100% for certain, because I can't send it in for warranty due to Vietnam's import laws, and the dock is not available for sale here at the moment. So neither of those options are viable
Like I said it has never worked but so far the only advice I have gotten essentially is "plug it in" as well as check the charger. The charger works fine with the tablet so I'm pretty sure that its not that, however I am curious about the mechanism by which it jumps from 5v to 15v and how it may behave in houses with or without voltage stabilizers.
Unless I've overlooked a very simple step I'm really wanting to move forward into a more technical analysis (ie: checking voltages / opening the dock).
Further info: the shop tested the dock before sending it (it was open but unused) and it worked fine.
So this strengthens the case for a charger/voltage/amperage related issue. Of course it could have been damaged in transit but it was DHL priority and appropriately marked so not too likely
maliusmaximus said:
Further info: the shop tested the dock before sending it (it was open but unused) and it worked fine.
So this strengthens the case for a charger/voltage/amperage related issue. Of course it could have been damaged in transit but it was DHL priority and appropriately marked so not too likely
Click to expand...
Click to collapse
It could just be you need a universal plugin to convert the amperage.
ostar2 said:
It could just be you need a universal plugin to convert the amperage.
Click to expand...
Click to collapse
Well a universal plug as I know it is just an adapter. It doesn't have any step-up/step-down capabilities.
But if you mean a universal power converter then possibly, although usually they just provide 12v, not 15.
The supplied adapter should be fine though, because its rated at 110-240V (Vietnam is 220V) and 50/60Hz (Vietnam is 50Hz).
My only thought with the adapter was whether it was having problems stepping up to 15v as it charges the tablet at 5v just fine.
Question: Does trickle feeding the tf201 on USB work? Also does the light turn on for a trickle feed?
bump
does this do anything.....
fully charge the tablet on its own, connect it to the dock, connect the charger (plugged in), restart the unit?
DNO1978 said:
does this do anything.....
fully charge the tablet on its own, connect it to the dock, connect the charger (plugged in), restart the unit?
Click to expand...
Click to collapse
No I tried that before creating the thread. Thanks anyway.
Don't know if this has been asked yet, but does the dock actually work (not just the battery)? Can you plug it into a nearby computer and access the mounted tablet? Also, there's a widget on the tablet that can show if the dock/tablet is charging or not. Also, you mentioned trying power from different outlets. Did you try outlets in a different building (like a hotel or university)? I've seen from visiting Brazil that "standardized electricity" doesn't mean that everyone has adopted it.
From what you've mentioned, you really have 3 viable options of failure: Dock battery is bad, dock is completely bad, or incorrect power. If its the battery, then you get to decide if you want to rip it apart or not. If its completely bad, then you would probably need to send it back. Finally, if it just doesn't work where you are, it could be that the building isn't up to standards or even that there might be electrical issues in the building your at.
_that said:
I regularly charge my TF700 with the TF101 charger, and I am almost sure the TF201 uses the same charger.
Click to expand...
Click to collapse
I use a TF700 charger for charging my TF201. I agree that there's probably little difference in the charger.
maliusmaximus said:
Does trickle feeding the tf201 on USB work? Also does the light turn on for a trickle feed?
Click to expand...
Click to collapse
It seems like there is a trickle and the light does not turn on. I only tried it for about a minute but the tablet did show that charging was happening. Maybe later I'll try a longer test.
Let us know if you've discovered or decided anything new.
alienedd said:
Don't know if this has been asked yet, but does the dock actually work (not just the battery)?
Click to expand...
Click to collapse
Thanks but I tried that already before posting. Plugging the tablet into the dock does nothing, and plugging the dock into USB at the same time has no result.
alienedd said:
Did you try outlets in a different building (like a hotel or university)? I've seen from visiting Brazil that "standardized electricity" doesn't mean that everyone has adopted it.
Click to expand...
Click to collapse
Not yet, but I will try that soon. I have a working voltage stabilizer in my house, as well as about 8 computers and 5 tvs etc.. Everything works very well and when I fixed some people's hardware recently it worked in my house but not theirs (due to my power supply being good) so I'm pretty sure that's not the issue. I will take it somewhere else though just to rule that option out.
alienedd said:
From what you've mentioned, you really have 3 viable options of failure: Dock battery is bad, dock is completely bad, or incorrect power. If its the battery, then you get to decide if you want to rip it apart or not. If its completely bad, then you would probably need to send it back. Finally, if it just doesn't work where you are, it could be that the building isn't up to standards or even that there might be electrical issues in the building your at.
Click to expand...
Click to collapse
Right, that's the conclusion I came to as well before posting. So I really wanted to know if I had overlooked something simple (doesn't seem as though I have) or begin more advanced diagnostics such as using a multimeter or hear some stories from someone who has taken their dock apart before I tear in.
Thanks again!
Well, I believe that the tablet should find the dock even if the dock has no battery power. The battery of the dock is merely a backup battery for the tablet and not used by the dock itself for functionality. For this reason, I think you got just a bad dock. If you want to try to replace the battery (since you are closer to China and Japan), you are looking for a C21-TF201D battery. You will need a small torx screwdriver (like a T-3 or T2 - my smallest is a T-4 which is just barely too big) to remove the screws in the back and a Phillips 0 to remove the screws under the pads. Top piece can then be lifted gently and there are 2 ribbons underneath to fully detach the keyboard. From there you should have just a few more things to do to get to the battery. There's a teardown video here but the speech is almost inaudible and the music is distracting.
What I was thinking is that the dock was tested before shipment then it arrived nonfunctional. It leads me to believe that something was damaged during transport (derrr, yeah I know that's obvious just bare with me). If that something damaged was the battery, then there could be some leakage that has led to possibly corrosive damage to other electronics in the device. And that wouldn't be fun to try to fix on your own. If you want to continue trying to troubleshoot it, you might want to do it without attaching the dock to the tablet until you find out what is wrong because you don't want to possibly fry your tablet connector due to the dock acting unreliably.
You should probably start talking with your shipping carrier about the fact that the device was damaged and that you should be reimbursed somehow. This might allow you to get a new one through them or sufficient money for a replacement.
alienedd said:
Well, I believe that the tablet should find the dock even if the dock has no battery power. The battery of the dock is merely a backup battery for the tablet and not used by the dock itself for functionality. For this reason, I think you got just a bad dock. If you want to try to replace the battery (since you are closer to China and Japan), you are looking for a C21-TF201D battery. You will need a small torx screwdriver (like a T-3 or T2 - my smallest is a T-4 which is just barely too big) to remove the screws in the back and a Phillips 0 to remove the screws under the pads. Top piece can then be lifted gently and there are 2 ribbons underneath to fully detach the keyboard. From there you should have just a few more things to do to get to the battery. There's a teardown video here but the speech is almost inaudible and the music is distracting.
What I was thinking is that the dock was tested before shipment then it arrived nonfunctional. It leads me to believe that something was damaged during transport (derrr, yeah I know that's obvious just bare with me). If that something damaged was the battery, then there could be some leakage that has led to possibly corrosive damage to other electronics in the device. And that wouldn't be fun to try to fix on your own. If you want to continue trying to troubleshoot it, you might want to do it without attaching the dock to the tablet until you find out what is wrong because you don't want to possibly fry your tablet connector due to the dock acting unreliably.
You should probably start talking with your shipping carrier about the fact that the device was damaged and that you should be reimbursed somehow. This might allow you to get a new one through them or sufficient money for a replacement.
Click to expand...
Click to collapse
What can I say, you're a legend. That's just the kind of info I was looking for. I'll get stuck into it soon and let you know how it goes.
I also wondered about whether the tablet should connect to the PC via the dock but my thinking is that you may need a minimum charge to get through the extra circuity in the dock (all dem capacimataters and circamatronics). But yeah I see your point.
About the dock working before they sent it, I'd take that with a grain of salt.
Full disclosure: When the company sent the package, they forgot to include the dock altogether and my friend left America the next day. When I was talking to (screaming at) them, they said they were totally out of stock except for one which was opened but unused. They agreed to courier it (DHL express international... ouch) over to Vietnam (as it had most of its packaging so could be treated as new. ). Why that dock was already opened in their shop I wonder. Methinks it was probably already broken and they are trying to cut their losses (they already had to cover international shipping and 100% import tax so they lost out big time due to forgetting to send the dock. They knew I couldn't send it back from Vn either).
Once again thanks!
I've swapped in a mainboard from another dock that had a bad battery.
Now the dock dock functions fine, and the tablet connects and can be charged through the dock.
However the battery light for the dock just stays as orange no matter how long I charge it for. And it always shows 0% battery on the dock so it seems like the battery doesn't charge at all.
What areas should I check? Also if I use a multimeter to check the battery, is there any way to tell if the battery can hold charge (and the issue is somewhere in the connectors) or if the battery cannot hold charge at all?
I tried a cold boot, no luck. Perhaps an alternative is the mainboard needs some kind of hard reset to recognize the new battery? Or of course the battery could just be bad, like the mainboard.
maliusmaximus said:
I've swapped in a mainboard from another dock that had a bad battery.
Now the dock dock functions fine, and the tablet connects and can be charged through the dock.
Click to expand...
Click to collapse
That's great to hear! Now at the very least you have a functional dock.
maliusmaximus said:
However the battery light for the dock just stays as orange no matter how long I charge it for. And it always shows 0% battery on the dock so it seems like the battery doesn't charge at all.
What areas should I check? Also if I use a multimeter to check the battery, is there any way to tell if the battery can hold charge (and the issue is somewhere in the connectors) or if the battery cannot hold charge at all?
I tried a cold boot, no luck. Perhaps an alternative is the mainboard needs some kind of hard reset to recognize the new battery? Or of course the battery could just be bad, like the mainboard.
Click to expand...
Click to collapse
Unfortunately, it has been years since I've used a multimeter for these situations so I wouldn't be able to help you out directly in that area. Googling for how to test batteries on other devices - like the TF101 dock or even regular batteries - could provide additional valuable information to help you in your experiments.
There's the possibility that it's merely a calibration issue where the dock has no knowledge of the battery's charge, but the fact that there's a constant 0% and the light stays orange all the time (never turning to green) then it leads me to believe it's a bad battery. Have you tried checking if the tablet continues to charge from the dock with no charger attached? If the dock charges the tablet in this fashion, then it's a battery data issue. Likewise, have you tried to use the dock without the battery, detach dock, then reinsert battery to see if that spurs the dock to reset its battery data? You might also look into an app or widget that will show you the battery output charge and all (like this). That's all I can really think of at the moment. Hopefully, from whatever tests you perform we can discover whether it's really a bad battery or something else.
Thanks for suggestions Alienedd. I ended up going back to Australia for Christmas so I quietly slipped the defective parts back in and made a warranty return.
I just picked up a used TF300T on Craigslist yesterday. It was completely stock, running 4.2.1. When the lady handed it to me to check out, both the dock and tablet were fully charged and everything was functioning normally. It wasn't til later that I tried to charge the tablet/dock that I noticed the dock wasn't taking a charge, but the tablet was charging. Eventually, the dock battery went down to 0% and that's when things got worse. Now, neither the dock nor the tablet will charge. Even when the tablet itself has the cable plugged directly into it, it still won't charge. No matter which port I plug the cable into, my PC recognizes it and mounts internal storage; but the stupid thing won't charge.
I've since unlocked the bootloader, installed the latest TWRP, wiped data/factory reset, rooted, etc. Nothing has made any difference. The fact that everything was fully charged up seems to support the original owner's claims that she never had any issues with it. I just don't understand how it could be fine one minute and suddenly have issues once I take possession of it. I'm pretty anal about caring for my gadgets, so it didn't suffer any bumps or any kind of mishandling in the 24 hours that I've owned it. I'm at a loss. Any ideas?
The only activity I've seen from the dock's charging LED came after the dock was fully discharged. Now, if I have the tablet docked and the charger plugged into the dock, the LED blinks orange. I've never seen the LED do anything without the tablet docked. No idea if that's significant, but thought it was worth mentioning. I did some searching and found that some people had charging issues with their docks, but didn't stumble across anything that seems to match what's happening with mine.
ApexPredatorBoids said:
I just picked up a used TF300T on Craigslist yesterday. It was completely stock, running 4.2.1. When the lady handed it to me to check out, both the dock and tablet were fully charged and everything was functioning normally. It wasn't til later that I tried to charge the tablet/dock that I noticed the dock wasn't taking a charge, but the tablet was charging. Eventually, the dock battery went down to 0% and that's when things got worse. Now, neither the dock nor the tablet will charge. Even when the tablet itself has the cable plugged directly into it, it still won't charge. No matter which port I plug the cable into, my PC recognizes it and mounts internal storage; but the stupid thing won't charge.
I've since unlocked the bootloader, installed the latest TWRP, wiped data/factory reset, rooted, etc. Nothing has made any difference. The fact that everything was fully charged up seems to support the original owner's claims that she never had any issues with it. I just don't understand how it could be fine one minute and suddenly have issues once I take possession of it. I'm pretty anal about caring for my gadgets, so it didn't suffer any bumps or any kind of mishandling in the 24 hours that I've owned it. I'm at a loss. Any ideas?
The only activity I've seen from the dock's charging LED came after the dock was fully discharged. Now, if I have the tablet docked and the charger plugged into the dock, the LED blinks orange. I've never seen the LED do anything without the tablet docked. No idea if that's significant, but thought it was worth mentioning. I did some searching and found that some people had charging issues with their docks, but didn't stumble across anything that seems to match what's happening with mine.
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The USB cables have been known to go bad, and regularly at that. The wall wart's quality is stable, but you can never tell. Now if you plug the cable to the dock and it blinks orange, leave it for a few hours. If on inspection, it persistently shows 0%, that means 2 things: either the charging port soldered onto the mainboard is kaputt (unlikely if the charger charges the tab through the dock); or the I/O controller chip (Nuvoton781) has gone AWOL (this is situated on the back of the dock's main board). The inner circuit that burned the charging part still allows for other functions such as USB and SD card and keyboard, and give you the false impression that ube alles, just for the fun of it. But don't be fooled. It has died.
If you plug the cable directly into the tab and the (a) the led shines solid orange, it means the charging circuit is good; or (b) blinks orange, it means it's charging but the battery voltage has gone too low for the tab to be useable. Normally such situation requires at least a few hours of charge. If it don't do nothing, again either the charging port (cable) has gone bad, or the cable and/or brick are. One time I plugged the cable in upside down, and accidentally forced it a bit, which resulted in my bending 2 pins inside. Had to replace port. So use a loupe and look inside all the connectors to make sure nothing has been twisted out of place. It might be tedious work, but since you're anal, you might enjoy it (lol).
ApexPredatorBoids said:
I just picked up a used TF300T on Craigslist yesterday. It was completely stock, running 4.2.1. When the lady handed it to me to check out, both the dock and tablet were fully charged and everything was functioning normally. It wasn't til later that I tried to charge the tablet/dock that I noticed the dock wasn't taking a charge, but the tablet was charging. Eventually, the dock battery went down to 0% and that's when things got worse. Now, neither the dock nor the tablet will charge. Even when the tablet itself has the cable plugged directly into it, it still won't charge. No matter which port I plug the cable into, my PC recognizes it and mounts internal storage; but the stupid thing won't charge.
I've since unlocked the bootloader, installed the latest TWRP, wiped data/factory reset, rooted, etc. Nothing has made any difference. The fact that everything was fully charged up seems to support the original owner's claims that she never had any issues with it. I just don't understand how it could be fine one minute and suddenly have issues once I take possession of it. I'm pretty anal about caring for my gadgets, so it didn't suffer any bumps or any kind of mishandling in the 24 hours that I've owned it. I'm at a loss. Any ideas?
The only activity I've seen from the dock's charging LED came after the dock was fully discharged. Now, if I have the tablet docked and the charger plugged into the dock, the LED blinks orange. I've never seen the LED do anything without the tablet docked. No idea if that's significant, but thought it was worth mentioning. I did some searching and found that some people had charging issues with their docks, but didn't stumble across anything that seems to match what's happening with mine.
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Your tf300t will not charge from your computer. You need to get the USB adaptor to charge it. The Blinking orange light usually means you have an empty battery.
graphdarnell said:
So use a loupe and look inside all the connectors to make sure nothing has been twisted out of place. It might be tedious work, but since you're anal, you might enjoy it (lol).
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Thanks for the response. It was thinking along those lines that ended up leading to me figuring out the issue.
cmendonc2 said:
Your tf300t will not charge from your computer. You need to get the USB adaptor to charge it.
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While not entirely true, my issues are actually along those lines. The TF300T actually will charge from a PC's USB port. It just charges painfully slowly. From what I've been reading, unless it's connected to the correct power adapter, it'll trickle charge, but the system doesn't know it's being charged and the LED won't acknowledge the trickle charging.
Well, after more panic-stricken reading, I figured out the problem, and it was comically simple. Apparently, neither of us had noticed that the lady accidentally gave me the wall wart (adapter) that came with her Samsung 7" tablet. It was when I was inspecting all the various connection points that I noticed the adapter said Samsung on it.
Apparently, it's as simple and stupid as the 5V output from the Samsung adapter being too weak to properly charge either the tablet or the dock. Oddly enough, it'll trickle-charge the tablet, but doesn't seem to do anything for the dock. Until proven otherwise, I'm gonna be optimistic and assume that, once I have possession of the proper wall wart, it'll charge normally. Can't wait to find out.