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...
Related
Hello:
I built myself a car charger a while ago and it all seemed to work fine. A couple of times however my unit has 'died' after a particularly long journey in the car. I have recently discovered that it was actually getting flat enough to turn off and not turn on until charged; even though it was indicating it was charging.
Further experiments have revealed that if the battery in nearly full (eg 84%) and I use my car charger, the percentage of battery full increases over time indicating it is indeed charging.
However; if the battery is quite empty eg 24% - over time the battery charge decreases until the unit turns off, and needs to be attached to the mains to charge it - even thought it still indicates it is charging!
Soehere in the middle of the two battery states ( 84% - 24%), my charger seems uable to charge my XDA for some unknown reason, I suspected it could be due to current drain - a flatter battery may need more current to charge which the charger cannot provide, but the same situation occurrs even if the unit is turned of and therefore taking very little current from the car charger - obviously leaving nearly all the current available to charge the battery.
Any ideas why this should happen? I am completely stumped - I do not wish to buy a charger as my charging system also incorporates a connection to my GPS unit, and no commercially available chargers provide this at a reasonable price.
Any help or suggestions much appreciated.
BTW: The PDA will only charge if at least one of the pins 16,17,or 18 isconnected to ground and at least one of the pins 20,21 or 22 are connected to +5V. Otherwise, though the XDA may say it is charging, it will actually just drain the battery.
Click to expand...
Click to collapse
icarusbop,
Have a look at the charger I made for my XDA II, for use with the in-car kit I also made. The schematics are on my web site - follow the link from my signiature below.
This charger works 100%, and the state of the battery has no effect on charging performance. Mind you, it is capable of supplying > 2 Amps which is sufficient to fully charge the battery while watching movies, and the screen brightness turned all the way up. Charging times are the same as using the plug pack supplied with tyhe XDA II, if not a tad quicker.
The only draw back is the heatsink required for the +5 volt regulator. For the smallish one I have chosen (for the car kit - see pic on my site) it is capable of 2 Amps, but with a larger heatsink (see the first attempt pic of this charger) a full 5 Amps is easily achievable over extended use. It all depends on how much juice your set up requires.
Hope this helps.
Recrem...
I have the same issue but I have an original car kit which was working fine. After I upgraded to 2.06.00WWE i noticed that although when plugged into car kit it says charging, it actually discharges. Although I like this version, I'm in the car quite a bit and need the device to charge, and am thinking about rolling back to the latest rom from the club imate site.
It appears to be a software issue more than a hardware issue....
:?
update,
I've discovered that if charged to atleast 90% when plugged into car kit then it charges.
at some level below this (don't know where yet) it discharges.
welcome to the twilight zone
I haven't tested this with my car kit, and haven't noticed any problems when I had SE installed, although my wife said that her device wasn't charging while in the car, and when she got home after a fair drive, her battery was indeed flat!
I rolled back from 2.02 + 2.06 merged SE to my origional ROM of 1.66.00.WWE purely because some problems became more and more evident - like being unable to connect to ActiveSync unless I reset the device numerous times, and spontaneous hard resets. I have all the same software on my device now with the origional ROM and no problems...
We will be moving this week, and it would be a good test for my ROM and charger to see if it charges when below 90%....
Recrem...
microphone
Hi, did you manage to get the mic working on you carkit? I cannot get the mic working when connected with pins 1 and 5. sound output is working however!
Thanks,
Rob Boerman
Did you design and build your own car kit, or did you follow my design from my web site? I am curious if anyone has used the info I have posted there...
Haven't had a chance to try the mic. I only know it will require a good pre-amp to get it working, and I have been too busy to build one yet - perhaps when I have settled down into our new home after this week-end...
Recrem...
let me know
If you find time this weekend let me know
cheers,
Rob Boerman
All
Just to give my two-pennies worth...
I bought a USB cable when purchasing my O2 XDA II from the O2 shop. When using this cable, if the existing charge is below 85% then the device discharges when connected, however, if it is above 85% then it charges quite happily.
Get this.. if I use my USB CRADLE to charge (in the same USB port etc..) then it charges from below 85% without any problems whatsoever!
Is there a possibility that the USB cable and the USB cradle are wired differently? Are we missing a trick here?
My charging issue has deteriorated to the point that it dosn't charge at all in the car kit, it does charge in the pc usb hub and on mains. I down graded to 1.72.00WWE last night and tested it in the car kit this morning and it still discharged, so the software appears to have nothing to do with it.
I think the earlier statement by indecided may yeild results:
"The PDA will only charge if at least one of the pins 16,17,or 18 isconnected to ground and at least one of the pins 20,21 or 22 are connected to +5V. Otherwise, though the XDA may say it is charging, it will actually just drain the battery."
I will pull my gear apart this weekend and test it out. Possibly I've got a bad connection.
davidberrysmith said:
I think the earlier statement by indecided may yeild results:
"The PDA will only charge if at least one of the pins 16,17,or 18 isconnected to ground and at least one of the pins 20,21 or 22 are connected to +5V. Otherwise, though the XDA may say it is charging, it will actually just drain the battery."
Click to expand...
Click to collapse
[Theory] The pins are quite thin, it's hard to think you can push 2+ Amps thru one of them without melting it down (at least the insulation). Maybe this is the problem: if you need a big loading current - like when the battery is below 85% - and you don't have more than one pin pair connected to +/- 5V the phone is not charging, although it may say so.
Solution: connect ALL three of pins 16-18 to GND and ALL three pins 20-22 to +5V.
[/theory]
Solved my problem,...
pin 22 had come away from the circuit board. So I sweated it down and just for good measure sweated down all other connections as well.
Put the phone back together and threw it in the car kit, charge ingreased from 78%.
time to upgrade the os again.
:wink:
david... perseverance does pay off... cool.
A word of warning - I received my USB 3.0 extension cable from Amazon yesterday, plugged it in when I got home and it started to charge. I noticed after a few minutes that the charge icon had disappeared and now the charger does not seem to work at all; tried both dock and tablet sockets.
This was the cable recommended from the other thread on the forum about charging the device.
http://www.amazon.co.uk/gp/product/B003QZKMU4/ref=oss_product
I'm fairly sure that it is the UK three pin socket part that has died as the machine is picked up by my PC over the USB cable. I've tried the usual taking the thing apart and re-clipping it back together, I've even checked the teeth on the cable to make sure nothing is damaged, still no joy.
I've emailed Asus support but after reading through the forum I'm not overly positive that they will be any help at all. I suppose I'll have to wait for the Chinese/Hong Kong factories to start kicking these out on Ebay as there doesn't seem anything in the UK at the moment. So I'll sit here and watch my 90% battery slowly die and the machine get covered in dust.
Why don't you get a cheap ipad charger in the meantime. Takes longer but do the charging overnight?
Thanks for the tip. Is the propriety charger the same or do you just mean the USB wall plug end?
dainesefreak said:
A word of warning - I received my USB 3.0 extension cable from Amazon yesterday, plugged it in when I got home and it started to charge. I noticed after a few minutes that the charge icon had disappeared and now the charger does not seem to work at all; tried both dock and tablet sockets.
This was the cable recommended from the other thread on the forum about charging the device.
http://www.amazon.co.uk/gp/product/B003QZKMU4/ref=oss_product
I'm fairly sure that it is the UK three pin socket part that has died as the machine is picked up by my PC over the USB cable. I've tried the usual taking the thing apart and re-clipping it back together, I've even checked the teeth on the cable to make sure nothing is damaged, still no joy.
I've emailed Asus support but after reading through the forum I'm not overly positive that they will be any help at all. I suppose I'll have to wait for the Chinese/Hong Kong factories to start kicking these out on Ebay as there doesn't seem anything in the UK at the moment. So I'll sit here and watch my 90% battery slowly die and the machine get covered in dust.
Click to expand...
Click to collapse
My PSU died, and after a week of back and forth to ASUS service they have declared my TF DOA and told Comet to replace it.
They are doing a doorstep swap tomorrow for me.
I have also posted about PSU's with a known fault, look in the accessories forum
I had the same issue. For me i fixed my PSU by unplugging everything for 20 minutes. Sounds silly but it works. Unplug from the wall socket, take the usb out of the PSU and the TF and leave it al alone for 20 minutes.
bbilko said:
My PSU died, and after a week of back and forth to ASUS service they have declared my TF DOA and told Comet to replace it.
They are doing a doorstep swap tomorrow for me.
I have also posted about PSU's with a known fault, look in the accessories forum
Click to expand...
Click to collapse
I checked my serial number a few days ago and it was supposed to be one of the ok ones.
I also took the thing to pieces as much as I could without resorting to a screwdriver. It's been left out over night and put back together a few times.
The whole thing doesn't look to be the best put together electrical item I've seen. In fact my Desire charger makes it look like some 5p Chinese shonk, oh err hang on a minute it is.
Just looking at iPad chargers now.
Same thing with me and extension off ebay one day after I got it. What I had to do was a factory reset to get it to show the charge icon. Now it's been fine since going on 2 weeks now.
dazzawright said:
I had the same issue. For me i fixed my PSU by unplugging everything for 20 minutes. Sounds silly but it works. Unplug from the wall socket, take the usb out of the PSU and the TF and leave it al alone for 20 minutes.
Click to expand...
Click to collapse
I did that too, but it didn't work for mine, so i tapped it on my desk and voila, it works fine now.....dunno how long it'll last though
Sent from my Transformer TF101 using Tapatalk
lacrossev said:
I did that too, but it didn't work for mine, so i tapped it on my desk and voila, it works fine now.....dunno how long it'll last though
Sent from my Transformer TF101 using Tapatalk
Click to expand...
Click to collapse
Funny you should say that, I was all about to give up and then gave it the tap of life on the window ledge and it started working again. The annoying part was that I'd moved it from the usual changing point to test it out so I have had to very gingerly move it back.
It's still working but I'm not sure how long it will last. I think that maybe the USB lead must have move something out, which is odd as it was a really loose light connection. The upshot is the charger is now going to be left untouched and the USB 3.0 lead is going in the bin.
Not really a robust item the wall charger!
Yes, mine was one of the good ones too....
Sent from my Transformer TF101 using XDA Premium App
dazzawright said:
I had the same issue. For me i fixed my PSU by unplugging everything for 20 minutes. Sounds silly but it works. Unplug from the wall socket, take the usb out of the PSU and the TF and leave it al alone for 20 minutes.
Click to expand...
Click to collapse
I second this.....same has happened several times to me when trying to get usb 3 cable to act as charger lead extension. Just leave it unplugged for 15- 20 mins and all ok.
Charger or dock battery??
I don't know the inner-workings between the charging adapter, the USB cable and pins - and the dock battery itself so I thought I'd throw this out there:
My dock battery has stopped charging. I can plug the tablet into the dock - have the dock plugged into the wall - and the tablet itself will charge (and the adapter will heat up) - but as soon as I remove the tablet, the adapter cools down, and the dock battery never charges (just blinks orange forever).
I've just been assuming all along that it was the dock or the dock battery that had gone bad for some reason.
But would it be possible that it could be a pin / cable / adapter issue instead?
I wonder if different pins control the charging of the tablet vs the charging of the dock?
I'm *hoping* it's the dock itself because at least I can still return that and wait for another to come in stock. But if it's the adapter or cable, it looks like I'd be SOL and have to send my whole freakin tablet back for a replacement!
I'm sitting on hold with Asus now because last night neither my tablet or dock would charge. I do not have the extension cable but have one on order from Ebay. I was planning to test all the pins on the cable while the unit was charging to figure out which additional pins are communicating with the charger to start the charge. While sitting on hold I came across this post and decided to try the charger again and now my tablet is charging. Will try the dock once I'm fully charged.
I love my TF but this charging stuff is micky mouse. I hear some people can charge connected to a PC, I have never been able to. Now I need to do some more searching to see who had what extension cable from where.
Check the thread link in my signature to see my finding for making a cable to allow charging from other sources.
It's all a bit of pot luck by the sounds of it.
Don't leave it on charge over night, don't plug the wrong sort of USB lead in and don't move the charger.
I think I'll be buying some £2 Ebay charger as soon as they appear, can't be any worse.
dazzawright said:
I had the same issue. For me i fixed my PSU by unplugging everything for 20 minutes. Sounds silly but it works. Unplug from the wall socket, take the usb out of the PSU and the TF and leave it al alone for 20 minutes.
Click to expand...
Click to collapse
A sense of panic set in when my charger stopped working after trying to use a USB 3.0 extension cable I purchased from Monoprice. After following this simple suggestion, I'm happy to report that all is working once again.
I never did get the USB 3.0 extension cable to work though. It was one that others have reported success with too. I guess I'll be sticking to a cheap extension cord for now.
This extension from CompUSA works like a charm. Its prices is awesome too. The adapter charges TF/KB seamlessly for me. Spread the words.
http://www.compusa.com/applications/SearchTools/item-details.asp?EdpNo=4662497&CatId=5476
jschmier said:
A sense of panic set in when my charger stopped working after trying to use a USB 3.0 extension cable I purchased from Monoprice. After following this simple suggestion, I'm happy to report that all is working once again.
I never did get the USB 3.0 extension cable to work though. It was one that others have reported success with too. I guess I'll be sticking to a cheap extension cord for now.
Click to expand...
Click to collapse
+1, I had a "[email protected]# no this isnt happening" moment. Still waiting for my extension cable.
12 foot cable
AcidCool2K said:
This extension from CompUSA works like a charm. Its prices is awesome too. The adapter charges TF/KB seamlessly for me. Spread the words.
http://www.compusa.com/applications/SearchTools/item-details.asp?EdpNo=4662497&CatId=5476
Click to expand...
Click to collapse
Ultra also makes this cable in a 12 foot length. Part #U12-40579. I have both the 6 foot and 12 foot lengths and they charge my 32TF and dock without issues.Both can be purchased from CompUSA.
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.
Two days ago, I turned my Infinity off and docked it. Both batteries were fully charged. A few hours ago I picked it up again, and the tablet wouldn't turn on.
I plugged it into the wall outlet. It started charging and I was able to turn on the device. It had 0% charge, and the batteries on the dock were also dead. What I don't understand is: how can the Infinity and the dock discharge completely in that time even though it was supposed to be off?
I left it plugged in so that I could use it while it charges. After some time, it asked me to connect the charger and then turned itself off due to almost dead batteries. Cable was still plugged in, though the charging light was off.
Tried connecting the cable to the dock, no light. Tried connecting the cable to my computer, it didn't work. So, the cable must be faulty, right? I can still turn the Infinity on, it'll boot normally and turn itself off after it's reached the lock screen. There's a red exclamation mark on the battery icon that wasn't there in the first time I turned it on, does it mean anything serious?
I had it drain to zero once overnight. Wasn't completely charged but it was strange... hasn't happened since in fact it generally has very good battery life.
I would definitely try a new cable and or charger.
Yeah, I've asked the store for a new cable. They'll have to mail it to me, so my tablet will stay dead for a few days. Now I know why propietary connectors suck.
Anyway, it seems I'm not the only one that had problems with the charger. Many people have reported overheating, but that never happened to me. The adapter that came with my Infinity seems to be a newer model; the plugs can't be folded or detached.
Charger: I had that happened several times to the SL101. Turned out I had something else plugged into the USB and the adapter was overloaded and tripped. Unplugged for a little while for it to cool down and reset itself.
What do you mean you had something else plugged into the USB?
Anyway, I've left my adapter alone for quite some time. I'll go see if it works as soon as I get home.
Beibin said:
What do you mean you had something else plugged into the USB?
Anyway, I've left my adapter alone for quite some time. I'll go see if it works as soon as I get home.
Click to expand...
Click to collapse
I was charging a small 700 mAh battery through the USB. That was enough to trip the AC adapter.
Hello,
For a while now I noticed that when my Xperia XZ phone was plugged in, the metal back of it had a somewhat different feel as if it was textured. Today I decided to test it with a meter to ground to see what the potential was. It delivers a 24 V AC charge when plugged in. It is always delivering 24v and the current is extremely low. This occurred with both the official charger and cable, and an anker charger with anker cable. Does anyone else get this? How on earth would a phone getting a DC charge put out 24V AC?
To test just plug your phone in and lightly drag your finger along the back. Do the same with it unplugged. If your phone is the same as mine you will feel a texture like feeling when it is plugged in, and none when it isn't. I can't see this being a defect as it would have to transform DC somehow to get the AC power. Strangely too my phone now always says that it is providing power as a USB device perhaps that is an issue.
That's common, it's the battery grounding itself via the back metal panel of the phone.
It happens in many phones and usually laptops or tablets, nothing dangerous or defect.
Happened to me once, I reconnected the charger to another socket & it was fixed. Never happend to me ever again.
This phenomenon is called Current leakage, although it might not be hazardous as the current is very low but any sort of leakage could be dangerous.
I would suggest changing the charging socket. If that doesn't work maybe you should try to change the wire & the charger and see if it happens again.
Are you using the original charger? It is likely to happen if the ground pin of the charger is actually not 0V.