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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It could be that the charger was meant for a newer version of the dock.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It could be that the charger was meant for a newer version of the dock.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.
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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.
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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.
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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
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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.
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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?
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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.
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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?
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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)?
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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.
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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.
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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.
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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.
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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.
So I purchased both the white Samsung Wireless charger and the black Verizon charger. My thoughts:
I'm upset that they both only charge at 640. This is HALF what a normal USB charges at. Also, the Samsung uses a standard Micro USB as power supply, while the Veirzion has a special adapter (annoying). Also, the Samsung is more sensitive where the device is placed on the pad, has to be directly in one spot or it won't charge. The Verizion has a much larger charging area.
So my question is -
1) Are all wireless charging bases only charging at 640?
2) is there a better charger that used micro USB?
Thanks,
Normal USB 2.0 charges at around 500Mah. Some special ports offer more power.
The stock Samsung wall charger, can output UP TO 2amps
My wireless charging receiver, a generic eBay one claims up to 1amp, and i usually get between 400 and 800 depending on what im doing.
The base itself, I think sends only up to 1amp, so the real limitation is in the receiver in the phone.
Second part of your question, are you asking about the charging plate?
In terms of what charger plate to get, Is the standard micro USB plug so important to you ?
there are some pretty handy ones, such as the Panasonic QE-TM101 that offer a feature where you can place the phone anywhere on the pad and the charge will start.
I cant comment on the Verizon one because im not from america
CountParadox said:
Normal USB 2.0 charges at around 500Mah. Some special ports offer more power.
The stock Samsung wall charger, can output UP TO 2amps
My wireless charging receiver, a generic eBay one claims up to 1amp, and i usually get between 400 and 800 depending on what im doing.
The base itself, I think sends only up to 1amp, so the real limitation is in the receiver in the phone.
Second part of your question, are you asking about the charging plate?
In terms of what charger plate to get, Is the standard micro USB plug so important to you ?
there are some pretty handy ones, such as the Panasonic QE-TM101 that offer a feature where you can place the phone anywhere on the pad and the charge will start.
I cant comment on the Verizon one because im not from america
Click to expand...
Click to collapse
Yeah, I'd like to get a pad that used the standard Micro USB.
Thanks for the advice!
seanvree said:
So I purchased both the white Samsung Wireless charger and the black Verizon charger. My thoughts:
I'm upset that they both only charge at 640. This is HALF what a normal USB charges at. Also, the Samsung uses a standard Micro USB as power supply, while the Veirzion has a special adapter (annoying). Also, the Samsung is more sensitive where the device is placed on the pad, has to be directly in one spot or it won't charge. The Verizion has a much larger charging area.
So my question is -
1) Are all wireless charging bases only charging at 640?
2) is there a better charger that used micro USB?
Thanks,
Click to expand...
Click to collapse
I have been looking for the same answer you are, I bought a off brand wireless charger off eBay and that charges at 640 as well. So I'm guessing it's the norm right now unless I'm wrong.
But I really wanted a wireless charger for bedside so even if it's slow I'm okay with it so far.
Sent from my SGH-M919 using xda app-developers app
That's expected. 640 is max rate wirelessly. I don't have the Verizon pad, but have several of the Samsung ones (thanks to the 50% off coupons) and none are sensitive to where you place the phone.
chamberc said:
That's expected. 640 is max rate wirelessly. I don't have the Verizon pad, but have several of the Samsung ones (thanks to the 50% off coupons) and none are sensitive to where you place the phone.
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I also have the white Samsung pad, and it's significantly more sensitive that the Verizon one. Can you give me a link to which one you've bought.
seanvree said:
So I purchased both the white Samsung Wireless charger and the black Verizon charger.
I
Thanks,
Click to expand...
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What's the Verizon one? Can you provide link?
cbb77 said:
What's the Verizon one? Can you provide link?
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I can't because it's not sold anymore.
seanvree said:
I also have the white Samsung pad, and it's significantly more sensitive that the Verizon one. Can you give me a link to which one you've bought.
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Click to collapse
It's the only one for the s4 on Samsung.com
chamberc said:
It's the only one for the s4 on Samsung.com
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Click to collapse
Yeah, I have that one and in my opinion it's pretty sensitive where you place the phone.
Thinking about snagging this one:
http://www.amazon.com/Koolpad-Wirel...TF8&colid=3616U4BBPMOR4&coliid=I2QTGCL6YI3QYJ
Did not know this until today but the case comes with inbuilt wireless charging pad in the flip case cover official
does anyone know the best place in the uk with fast delivery to get the best pad or the pad that charges the fastest
i head Qi s5 charging pads are good but cant find fast source in the uk for fast delivery and cheap lol
also not sure this is possible without cable but are there pads that pic up data aswell so that if i put hte phone down to charge on the pad it will let me transfer data to the phone and back from my pc without even plugging anything into the phone as that would be totally awesomeness lol
Make sure you actually bought the one with the charging built in. I didn't think it was released yet. I bought the s view case and I thought it was the wireless charging one too until I got home and found otherwise. Yes it has pins in the battery cover, but these aren't for qi.
Edit: just checked the Samsung website and it says coming soon. So yours most likely doesn't have wireless charging.
Sent from my SAMSUNG-SM-G900A using XDA Premium 4 mobile app
Mod Edit
Thread Closed
Please this this thread already started on this topic
Genuine wireless charging back
I bought a generic Qi wireless charging kit. It has a white receiver which you open up the back cover of the galaxy s4 and then fit the prongs in place. Then closed the back cover and put it on my charger pad. The charger pad is powered by my OEM Samsung 2A output adapter so that should be plenty of power. There are two lights, one red that is constantly on which I assume is the power light. The other light is green, but it flashes. I'm not sure if it is supposed to do this, but pretty sure it is not as my phone will display a popup notification that wireless charging is enabled. One second later, the popup is gone and the battery icon no longer shows the thunderbolt charging symbol. Another second later, the notification comes back and the battery icon shows the thunderbolt charging symbol. So both the charger pad flashes and my phone's notification and battery charger icon appear and disappear every few seconds repeatedly, anyone know what is going on?
Kind of hard to tell without seeing which one you specifically have. Got any links? Have you made a good connection with the contacts on the back of the phone? And are you placing the phone in a good spot on the charger? I have 2 qi receivers like yours and I don't have these problems unless I'm using the official nexus wireless charger. I think the magnets in it do something to offset it. I have another wireless charging pad and I don't have these problems at all.
Stealyourface said:
Kind of hard to tell without seeing which one you specifically have. Got any links? Have you made a good connection with the contacts on the back of the phone? And are you placing the phone in a good spot on the charger? I have 2 qi receivers like yours and I don't have these problems unless I'm using the official nexus wireless charger. I think the magnets in it do something to offset it. I have another wireless charging pad and I don't have these problems at all.
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Click to collapse
I actually do have the link: http://www.ebay.ca/itm/181216698737...eName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
I made sure to buy the GS4 i9500 and almost certain this is a right purchase as the prongs fit perfectly. Based on the instructions, the actual charger is under the symbol/icon, which I have tried to place perfectly. Heck, I tried so many spots with no success. I'm not sure if the receiver is faulty or if the charge pad is faulty. I'm looking into a ChoeTech and Incipio Qi charger right now as its around 30 bucks and have quite some positive reviews.
Well that thing is one of the thicker ones. And I've never liked the design of it. I'd definitely switch receivers. Then chargers if you problem still occurs.
1. check to make sure the contacts on the receiver are not getting disconnected inside the phone.
2. you need to find the sweet spot on your pad when you put your phone on it
Well, I'm in the process of getting a refund on eBay. Guess I'll have to go for a more branded charger instead of some no-name generic.
Looking for a back cover OR a qi "pad" that fits inside the phone that ALSO takes advantage of fast charging qi. Not the standard rate of wireless charging. Thanks
I haven't seen anything but cheap stuff. Perhaps phone doesn't support fast charging via those contacts on the back. Also I don't see anyone developing such a thing for an outdated phone.
The Note 4 doesn't support Fast Charging on wireless charger. If you do put it on a Wireless Fast Charging pad, it will charge at normal speed. I actually tried this with a Samsung wireless Fast Charging pad and a Samsung Note 4 S-view case made for wireless charging. In order to use wireless charging on the Note 4, you have to have a case or battery cover that supports wireless charging. Or, you can get one of the wireless charging receivers available on Amazon, eBay or elsewhere. I haven't tried one of the receivers, though a friend did. He had mixed luck getting it to charge at regular speed. Apparently not all receivers are made accurately enough to touch the necessary contracts on the case and phone.
smarcin said:
S-view case + fast charge pad
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How does the combo Fast charge Samsung pad and S-View wireless combo work together? I mean, does it heat up the phone and how fast does it approximately charge? Thanks.
The one of the wireless chargers I use made the phone too hot for my liking. The other one seemed to work fine. Haven't tried the Samsun ones. I had a wireless charging pad initially on the back of my phone, but I popped the back off enough times and it always felt like it was bulging out a little, so gave the old s-view case to a friend, and bought the one where it was integrated. Works great. But yeah, I don't think it supports the fast charging.
I've using this: http://www.ebay.com/itm/301400816942?_trksid=p2060353.m2749.l2649&ssPageName=STRK:MEBIDX:IT, for over a month. I'm using it with a "normal" samsung reciever, it works well, the phone doesn't get too hot, but the charging speed is far from fast charging, so, it is more like a gimmick.
terrancze said:
How does the combo Fast charge Samsung pad and S-View wireless combo work together? I mean, does it heat up the phone and how fast does it approximately charge? Thanks.
Click to expand...
Click to collapse
It works well. Not fast, but it also doesn't heat up the phone. That's the reason I got it. I didn't really time it, but I would expect it to charge at the standard 1 Amp/hr. So, about 3-4 hours if the phone was totally dead. I got it because my phone was over-heating with the fast charger that came with it. I got my charger as an open box at my local Microcenter. However, Amazon has them for around $20-50, depending on if it's the Fast charger or the standard one. One thing I would look at carefully is whether the Samsung wireless chargers at Amazon are real OEM Samsung, or fake. The wireless S-view case I got came from Amazon. It was in Samsung retail packaging and sealed. It was around $31.50 and new. Fortunately I got it with Amazon Prime shipping for free shipping. I just checked, though, and the prices have gone up to over $40. There is one for $33-$34. Another possibility is buying the "battery charging system." It is basically a battery charging case, a new battery and a carrying case for your spare battery. I got it from Sprint for around $25 + tax. The shipping was free. You have to use your own charger with it. It seems less likely to overheat. It has been better for me to have the extra battery. I think I mentioned that I had gotten my Note 4 replaced under TEP, as it was over-heating. I think it was that particular phone that hated the first update to MM. OTOH, my replacement Note 4 has been very happy on PG1, which was on it when I got it. I usually make it through the day with a charge left on the battery I started with. I carry my spare in case. It hasn't overheated. I am hesitant to use Fast Charging, if I don't have to. I believe Fast Charging is more apt to overheat the phone and battery, and probably shorten the life of the battery, if not the phone as well.
are all the s-view cases supporting Qi charging? how can I tell if one does before I buy it? how many contact pins will it have?
thanks!
I use the following 3rd party Qi charging back, and although it is a tight fit, it seems to work well and says it supports 650ma output via the charging pins. It also says that it supports s-view function, but I don't have a s-view case to test with.
Again it is a tight fit, but if you put it on from the bottom first, it can be massaged on.
https://www.amazon.com/H-ber-Portab...coding=UTF8&psc=1&refRID=GHAAGMSYBCFYFHBARHR7