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Plugged in Transformer last night to charge it up overnight when the battery hit 30%. I updated the firmware yesterday morning and everything was going swimmingly.
Woke it up this morning, and found it was at 9% battery remaining and had a low battery warning. I had a closer look and the battery icon shows no indication that it's charging when it's plugged in.
Right now I've plugged it into a bog-standard USB charger and turned it off, hoping it'll trickle charge (damn the lack of a charge LED!) and that it's a fault with the power adapter rather than the device itself.
Anyone else had this issue?
I had the same problem a few days ago, my charger was plugged in via a multi block and it would not charge.
I even went to the extreme of taking my device back to comet in the hope I could swap the charger out with their demo unit.
Man behind counter plugs my charger into some sort electrical surge protected socket and it starts charging straight away leaving me looking like a right tool standing their. (and they tried to sell me 3 years extended cover)
Brought it home and plugged it into the very socket where it wasn't working and what do you know? It starts working!
Not sure what the issue was but it now works again.
Ok well that's good to know!
On trickle-charge it's now gone up by 2% since I posted.
Looks like the power adapter has its own faults...
Oh, and what do you know... plugged wall charger back in (it's been unplugged for 20mins) and now it's all happy and charging again.
Hooray.
yeah maybe that 20 minute trip to comet fixed mine too..
the USB mains adapter plug has a fatal flaw - the middle part of the usb connection isn't as sturdy as it sould be so it is easy to plug a USB port in the wrong way around and it looks and feels plugged in correctly as the middle part just moves out of the way.
If it isn't charing always check to make sure the USB connection is in the right way around in the plug.
I am bummed about this proprietary power connector; and apparently proprietary USB cable with extra pins (negating the use of USB extension cables). I wish the TF had a standard round power adapter similar to the Acer A500.
Thank God, i thought i was the only one. Had exactly this problem with mine when it arrived a couple of days ago, i am lucky enough to have lots of USB chargers around so i tried and tested various combinations and tried to charge other devices with the asus charger.
The problem lies as far as i can see, entirely with the charger unit. The charger comes in two parts, one is the usb dock and the other the relevant country plug. The way the plug fits onto the face of the charger is the important part. There is a central 'locating pin' made from plastic and two contacts that slot into the charger carrying the live and negative. The construction of this part is very, very poor. The tolerances are not a match for the quality of the plastic, the T shaped plastic locater does not actually locate the bottom pins properly and needs a great deal of force to lock in placce, and here is the best part, it doesnt like STAYING locked. As the plastic is weak, and we are looking at just a couple of mm here, it will snap, that will stop there being a clean contact and no charge. As a remedy, i have secured the face plate to the charger very tightly with a high tech rubber band
I agree, the use of specific power connectors in this day and age is just as dumb a decision as any manufacturer can make, and the rate it recharges at from a USB to PC connection can only be described as comical, a full recharge in 26 hours . Aside from all that its nigh on perfect, but i can see power related alternatives being VERY popular until Asus catches up with the rest of the electronics industry.
havent even had mine an hour and i havent done the update because its not at 50% and it will not charg at all. when i first tried to start it i thought it was doa because it would not turn on. guess ill take you guys advice and leave it unplugged for a while. i hate the charging cable is so small too that definately sucks.
Hmmm... if only a few other people created topics about not charging...
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.
I've had my transformer for a little over a month. Today I notice that I was getting shocked by my transformer. It isn't really bad, kind of like a 9 volt battery.
Is anyone else experiencing this? could find it on the forum.
Are you sure it wasn't just static charge, since you only had it once, as I understand. And I don't get shocked by 9v batteries, I can only taste them when putting them on my tongue
Happens to me occasionally (only when docked), and I've seen several other people mention it here. I think it's just a grounding issue.
Noticed something similar yesterday. TF docked and charger pluged in. When touching the dock there was a small electric prickle. First thought of static charge, but it remains until I removed the charger.
mee too, got an eee pad with dock today, first charge, touching the dock I get a small eletric shock....
Any solution?
It's a common issue. The back casing of the Transformer has some current in it and if you touch it under certain conditions you can meet the cold metallicly feeling you get from something like a 9v battery on your tounge. I don't believe their grounded properly. If you hover your hand 1/4 inch from the back of the case you can also feel it.
I just had this.
Turn your power adapter the other way up. As in, take it out of the wall, turn it the other way up, and plug it back in.
There is a thread in this forum.
Strangely enough: the solution is to flip the charger round.
I can confirm turning the adapter 180 degrees and then plugging it in the wall socket again stops the buzzing feeling when touching the tablet and dock.
Doesn't give me a good feeling on the overall build quality. Even worse now my dock has stopped charging.
After some weeks I never got again that electric feeling on the dock.. it seem's that it was electrostatically charged when it was new...
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.
Alright, so here is a fun issue to deal with. My notepro has always been a little slow to charge, but most of them are. However, its gotten very bad.
I have had issues with screen flicker and a little heat issues and some other small things off an on. So, fed up with it, a few days ago I rooted the tablet. It worked fine. Then I tried to install a new kernel and rom that was getting good reviews. However, when i did this, I couldnt get past the boot screen. Several reinstalls of stock and customer kernels later, my tablet started flashing and eventually died. When it was plugged in, it would show the battery icon with a circle in the middle but then die. Several tries to fix only seemed to solidify the tablet's fate.
However, yesterday I gave it another shot. I assumes the tablet had heated up and made the solder loose, so after a while it was solid again. It started charging, and after reinstalling stock rooted rom and stock kernel repeatedly, it was working again. I then installed the rom and kernel I was trying to before (I had to have a custome kernel to be able to control voltage for the screen flickering issue).
Now it is actually working. All functions are working, and oddly enough I am not seeing any screen flickering.
Only one real problem remains. Battery charging. The battery is charging so slowly that when the tablet is turned on, it doesnt charge at all, it creates a stalemate between charging and draining. It also drains pretty quick. The power drops about 5% in about 5-10 minutes of full screen brightness use (I was testing it this way to try and see if it would flicker again.
Its been charging for about an hour now, and only gone up 5%.
I have tried a couple cords and different bricks, but to no avail.
There are some thoughts, I am wondering if the tablet is only drawing power as if charging from usb, so only around 0.5a instead of 2.4a or so . I am also wondering if there is still a hardware issue.
I do not think it is the rom or the kernel, as this issue was happening as well after I got the tablet working again on stock but before I tried isntalling the rom/kernel again.
Any suggestions? I would be very appreciative.
I had simular problem with very slow charging, reboots and bluescreen. I opend my note to check battery plugg for broken soldering, but I found no problem with it. But to check turely i unplugged battery from main bord and replugged it again. After that I had no problem at all, now its charging normal, no reboots.. stil working perfect after averyday use for about 8 mounts......
If you are using usb cord not usb3 cord it will charge very little when using tablet . Mine will charge when off and below 25% to full in 7 or 8 hrs overnight.
Sent from my SPH-L300 using XDA Free mobile app
Could be a bad charging port dock/flex cable. These are actually pretty easy to replace and can be found on Amazon. I had to replace one on mine. Try searching for a usb charging port dock flex cable for samsung galaxy note pro. That will cause the issues you are seeing. However the screen flickering sounds like a voltage issue caused by a cracked solder pin from the battery connection to the board. Which is very common on these and hard to see without an electronics magnafication glass. You could try taking the back off and pressing the battery connection firmly while plugging in your tablet and powering it one to see what happens. Either way sounds like a hardware issue.
snifferno said:
I had simular problem with very slow charging, reboots and bluescreen. I opend my note to check battery plugg for broken soldering, but I found no problem with it. But to check turely i unplugged battery from main bord and replugged it again. After that I had no problem at all, now its charging normal, no reboots.. stil working perfect after averyday use for about 8 mounts......
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Ok Guys, had the same problem with my 12.2 samsung tab pro, changed usb chargers, cables etc.
Found that the connector on the tablet itself (female) did not made good contack with the male usb.
So i simply , very careful, with a pair o pliers closed both tips on the usb conector, so the cable enters more tight. And voila, the usb amp meter i had showed a rate of charge from .33 amp , jumped to 1.73 witch is more than enough to charge and use tablet at the same time.
You need to do this at the end of the cable that plugs on the tablet, that is kind of double, maybe a e.0 usb or something like that. Make sure to close both tips. You want a tight connection