Hi,
My TF101 won't charge anymore. The original charger stopped working a while back, which is when I first switched to a 12v 1.5a charger with USB tip from Radioshack. ---Insert long story about using the charger last night to charge a drill battery and possibly shorting some wires in bad ways---. I just bought a brand new adapter from Radioshack. Plugged in my tablet, the battery charging icon pops up for a second then goes away and there are no other signs of charging. Same thing happens when I plug it into one of my computer's 12v rails (similar to this). I think it might be trickle charging, but I haven't yet left it alone for more than an hour or so. Same thing happened when I plugged it into a 19v laptop adapter (swapped out the barrel tip with my USB tip). The USB tip is a single unchanged variable in all of these tests, but when I was at Radioshack I quickly tested the new adapter with a new tip, and it did not work, so I don't think the USB tip is the problem, but maybe. A multimeter shows correct voltage from both adapters and computer. I can't seem to get any reading from the female USB tip plug, but I also don't know where the put the meter leads, when I put them both inside the plug I got some sparks so I stopped.
Could there be something wrong with the tablet itself?
Thanks,
Marc
Edit: Or how can I test the 30-pin connector that goes into the tablet with a multimeter?
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So, I'm traveling (for a long period of time) with my TF. One day, it stopped charging.
I took apart the power brick and put it back together, I even tried to freeze it (on advice from some older "not charging" threads), nothing helps.
When I connect the TF to my laptop via USB - it recognizes the TF. When I connect my iPod to the power brick (with its own cable obviously) - it charges just fine. So what broke?!
I hate this, the local stores here don't sell the power brick separately and I don't even know if that's the source of the problem.
This sucks
Sounds like the power pin in the TF port has bent/broken or just has some detritus/dirt/foreign matter in it and is stopping it from charging properly. Have a look, but you might need to check the port with lots of light and a magnifying glass, so not easy while you're on the move.
If you are in the US Office Depot sells the charger and USB cable for $30.
strange thing is that sometime my transformer doesn't charge.
i have to reboot and it start to charge again.
Same happened here. Asus tech wanted me to wipe the device. After trying other options to get it to charge, I did but it didn't wipe... Go figure... But it booted up normally and now it has been charging.
Sent from my HTC Sensation 4G using XDA App
Apparently charging has some history of issues on the TF101.
I just had mine act up on me, went around the house trying different wall sockets and checked that it worked fine via USB to PC. Ended up taking a can of dust-off to all the pins, then shoving the plug hard into the TF101 socket. Now it works.
Should have mentioned I have a dock as well, which doesn't charge either (so problem is probably with cable/brick)
I'm trying to get new ones (nowhere to be found here, but I'm trying to get one sent to me). I tried looking for dust/dirt and different wall sockets, no luck.
Weird thing - I left it plugged in to the wall overnight and it grew from 5% to 15%, so looks like some electricity is trickling.
I had the same problem with mine after I had it for 5 weeks, I just RMA'd it and everything is fine.
Im having the same exact problem. I left it charging over night by mistake the night before yesterday. I only let it charge 3 hours the most because I know the Transformers have known issues.
I tried to charge it this morning and nothing. I plug it into my PC. The PC recognized the Transformer but no charging. Turned it on and off, nothing.
Just put the power brick in the freezer, waiting to dry up to see if it works .
Although the tf charger and cable has a usb connector it is not usb compliant. the charger brick looks for a gnd signal on pin 7 of the usb connector ( normally a usb 3.0 data line) to determine it should supply 15V to the positive charge pin vs standard 5V. The slow charge you are seeing is from the 5V supply . check to see if pin7 is seeing the gnd signal. Are you using a usb 2.0 extension cable as it doesn't have have pin 7 conductor. be careful connecting your ipod as it could accidentaly see 15V vs the 5V it is designed for.
My charger keeps breaking, to be specific the cable.
The cable is very, very poorly designed. It contains 1 wire which is covered by braided shielding. The wire is the positive and the braided shielding negative. At the point where the braided shielding comes together for connecting to the micro adapter the shielding keeps breaking. This means no charging. I have tried soldering couple times but the shielding and wires are so thin it´s just usable a couple of times, until it breaks again.
I tried to make a DIY cable, but i didn´t get it to work. Probably need to place a resistant over some pins, however on the acer micro usb i couldn´t found one on the board where the micro usb is soldered on. Acer didn´t follow the usb standard with this adapter, the wire inside the cable is white, normally this is data instead of positive.
So i´m waiting for the 2nd time for a new 50 euro charger.
Just curious if more people also experienced this problems.
Yeah, I'm on my third charger now. You can charge them through USB although the charging light doesn't show and it takes about two full days to charge from low to 100%.
I have heard, though that a USB 3.0 supplies enough power to charge the a700. Haven't tried it yet, though. It may be cheaper just buying yourself a USB 3.0 PCI card for your PC and charging to that way.
Sent from my A700 using xda app-developers app
I had similar issues where I thought my charger was broken, but it was a thermal problem. It seems, that if the charger keeps plugged into the socket for example over night, it can get so hot that it triggers some thermal protection and switches of. To reset the termal protection, It's not enough to let it cool down (which it does on it's own after shutting down anyway), but I had to unplug it for a couple of minutes, then replug it again - charger working!
I never had an issue with the cable though...
I was just curious, lol. Would the phone break or something? Thanks.
patsimeon said:
I was just curious, lol. Would the phone break or something? Thanks.
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Oops, wrong section...Sorry! I don't know how to move or delete this. Anyway, my curiosity stays.
I think qi charging overrides USB charging, but it could be the other way around. Either way, the phone knows to deactivate one.
According to the battery monitor, wired charging (USB or A/C) overrides wireless charging. So, if you plug it in, it doesn't matter if you place it on the wireless charger or not.
I seem to recall someone at Google (on one of their product QA's for this phone) that even though it makes logical sense for the AC charger to take precedence (faster, less heat generation) but the QI charger is the one actually doing the charger.
I realize this contradicts what the battery status would indicate, but it is plausible that the indicator does not report it correctly.
Either way, the only time I can really see this being a factor for me even REMOTELY, is in the extremely rare event I have the phone plugged into my computer via USB, and sitting on my qi charger. But that almost never happens, I sync data to/from the phone over wifi just because, well, it's easier. It's not faster, but since it happens automatically it takes less effort.
In that case, I'd actually prefer the qi charger to work, since it's a faster charge than my USB port.
imagine the hilarity if both charging circuits worked though...sounds good in theory but I think we'd all have broken phones
I've plugged in my USB cable (hooked up to my computer via USB 3.0), while my phone was sitting on my Qi charger (nokia, 750mah), and the usb cable takes priority over the charge.
When wireless charging is in effect, you hear the NFC tone from the phone. Also the light on the charger turns on when its charging. It doesn't play when you lay a phone with USB plugged in, and the light doesn't turn on in front of the charger, so.
I'm pretty sure this would disrupt the space-time continuum.
xybur said:
I've plugged in my USB cable (hooked up to my computer via USB 3.0), while my phone was sitting on my Qi charger (nokia, 750mah), and the usb cable takes priority over the charge.
When wireless charging is in effect, you hear the NFC tone from the phone. Also the light on the charger turns on when its charging. It doesn't play when you lay a phone with USB plugged in, and the light doesn't turn on in front of the charger, so.
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I can confirm that while setting on the wireless charger, the "charging" light is on on the charger, but if I plug the cable in, the light goes out. The wired charger is DEFINITELY overriding the wireless charger.
For people using OTG cables or external storage adapters on the microUSB slot they do require wireless charging to work while being "plugged in".
awesome question...I have a S5, which has a galaxy charging current app
does one exist for the nexus? if so, you could tell by the amps it is charging at
Since last night my a510 won't charge at all. There was a thunderstorm and a power cut and the charger was connected to the socket (a multi socket with several other items including a phone charger) but not to the tablet. When I plug it in now there's no indication that it is charging and the battery keeps going down. I tried with the phone charger also and a USB cable on the PC. While I know at best this would charge the tablet in 24 hours or so there was again not sign of charging at all.
Is it still most likely to be the Acer charger that's at fault or is there something else I could try?
pickarooney said:
Since last night my a510 won't charge at all. There was a thunderstorm and a power cut and the charger was connected to the socket (a multi socket with several other items including a phone charger) but not to the tablet. When I plug it in now there's no indication that it is charging and the battery keeps going down. I tried with the phone charger also and a USB cable on the PC. While I know at best this would charge the tablet in 24 hours or so there was again not sign of charging at all.
Is it still most likely to be the Acer charger that's at fault or is there something else I could try?
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edit: turns out it does trickle charge with a normal USB charger even if the charge light doesn't come on. Seems to be really hard to find a replacement for these though.
pickarooney said:
edit: turns out it does trickle charge with a normal USB charger even if the charge light doesn't come on. Seems to be really hard to find a replacement for these though.
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12V, 1.5 Ampere, I believe just about any electronics outlet should have something in stock. Original would be better, true. Get a surge-protected multisocket if your area is prone to bad weather.
Luther Blissett said:
12V, 1.5 Ampere, I believe just about any electronics outlet should have something in stock. Original would be better, true. Get a surge-protected multisocket if your area is prone to bad weather.
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The problem is the MicroUSB port on the tablet has an extra connector so I don't think it will be possible to use a normal microUSB cable with a 12V adapter.
pickarooney said:
The problem is the MicroUSB port on the tablet has an extra connector so I don't think it will be possible to use a normal microUSB cable with a 12V adapter.
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I tried with another adaptor which has the right shape and 12V output and is supposed to be compatible but not joy. It might be the tablet itself but it's weird if it just stopped working overnight.
warranty
pickarooney said:
I tried with another adaptor which has the right shape and 12V output and is supposed to be compatible but not joy. It might be the tablet itself but it's weird if it just stopped working overnight.
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I had the same problem, after 2 month my charger was dead. I Contacted ACER send in the tabled and got a new charger in about 1 week.
You need 12 Volts for Charging 5 Volts want Charge your Battery fully.
I've successfully replaced the battery of the dock with a new one. It was showing some charge 36% instead of 0% and no more tablet draining, but it never charged! So now it's at 9%, red dot blinking, and I don't know how to fix it! Charging sign appears when plugged in and tablet charges trough the dock.
I've tried the cold boot and the trickle charge but I didn't see changes, maybe I've done something wrong?
What more can I do to make it charge again?
I thought it was the charger or the cable but for what I see the 40-pin connector has actually only the 4 pins (the usb signal) so I don't think I need another cable.
bichpm said:
I've successfully replaced the battery of the dock with a new one, but it never charged!
I thought it was the charger or the cable but for what I see the 40-pin connector has actually only the 4 pins (the usb signal) so I don't think I need another cable.
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I don't believe it is a software issue. It might be a contact issue caused by yourself I think.
Firstly disconnect your tablet from the dock. Connect it with the charger and check if it is going to be charged. If so, your both charger and cable are OK.
Secondly check whether all contacts between the battery and the dock are closed correctly or not. Please follow backwards the sequence you used to taking out the old battery by yourself.
try and charge it with the official charging brick, or at least something that can put out 15V at 1.5A i had the same problem when using my tablet after a long time and only my tablet would get charged not the dock
Yes I'm charging it with the official charger, maybe it got some problems
I don't have a tester at the moment but I got a doubt. Is it possibile that the cable has 2 charging lines one for the tablet and one for the dock? Because I want to buy another charger but maybe it could be not compatible for charging also the dock.
I opened it again last weekend and there was nothing unplugged, everything was good.