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Need help. My Transformer won't charge anymore

Hi,
I hope someone can help me. My Transformer doesn't charge anymore since yesterday.
Tablet was around 10% when i put the charger in, but the message 'Connect your charger'doesn't go away.
Strange thing is that whenever i plug it in and TF is off, it will turn on, so I guess the wall charger and cable are functioning.
Also when connecting it to my PC I can sync.
I've tried already all the solutions i could find online:
- put the wall charger in the freezer --> didn't work
- cold boot --> didn't work
- factory reset --> didn't work
- tried a different wall charger and connected the wire to a portable battery --> didn't work
- flashed the ROM again --> didn't work
The only way now i have for charging my TF is by USB (connected to PC while turned off). It will charge this way but it takes about 3 hours to get 10% charge from this.
Anyone had this happen already before?

So you tried multiple Asus wall chargers? with no luck? A standard USB charger will not work as those have an output voltage of 5+ when the tf requires 12+.
Sounds like you have a bad charger, you can join the club of thousands... It is a very common issue and not always resolved by the freezer or fiddling trick. If you are able to trickle charge via a PC connection then your cable and tf should be good.
Sent from my SAMSUNG-SGH-I997 using XDA

Link for another discussion where I listed an alternate charger
http://forum.xda-developers.com/showthread.php?p=23917818
It really is heads and tails better than the Asus one
Sent from my SAMSUNG-SGH-I997 using XDA

theraffman said:
So you tried multiple Asus wall chargers? with no luck? A standard USB charger will not work as those have an output voltage of 5+ when the tf requires 12+.
Sounds like you have a bad charger, you can join the club of thousands... It is a very common issue and not always resolved by the freezer or fiddling trick. If you are able to trickle charge via a PC connection then your cable and tf should be good.
Sent from my SAMSUNG-SGH-I997 using XDA
Click to expand...
Click to collapse
No, I tried with a different wall charger (from Motorola). I don't think it's the wall charger though, but to make sure I wil connect it to a phone and check if it's working.
It just feels like the cable and wall charger is working as it should (tablet powers up or screen turns on when I plug it in), but the tablet refuses to charge.
Could it be the pins?
Sent from my GT-I9100 using xda premium

And the motorola USB charger puts out at least 12 volts and not just 5. Is it the wall charger for the zoom? I was UN aware that the zoom used a USB type charger (similar to the tf).
Once again, you can't use just any USB wall charger for the tf... 99% of chargers put out the standard 5 volts which is enough to trickle charge a tf and to slightly charge it in done cases when powered down. I am only adamant about this this because I have sewn this post a hundred times, and 99 of those times it was the charger... Many people don't realize the tf USB charger is very coherent then what most folks are accustom to, even though it looks and acts similar to others.
The only way to confirm is to find someone who has a tf and borrow their charger, our go to radio shack and buy the charger I listed... Which you should do any ways because it's is way way better, my charging cord over all length is 10ft. Beats the hell out of the 2 or 3 you normally would have.
Sent from my SAMSUNG-SGH-I997 using XDA

theraffman said:
And the motorola USB charger puts out at least 12 volts and not just 5. Is it the wall charger for the zoom? I was UN aware that the zoom used a USB type charger (similar to the tf).
Once again, you can't use just any USB wall charger for the tf... 99% of chargers put out the standard 5 volts which is enough to trickle charge a tf and to slightly charge it in done cases when powered down. I am only adamant about this this because I have sewn this post a hundred times, and 99 of those times it was the charger... Many people don't realize the tf USB charger is very coherent then what most folks are accustom to, even though it looks and acts similar to others.
The only way to confirm is to find someone who has a tf and borrow their charger, our go to radio shack and buy the charger I listed... Which you should do any ways because it's is way way better, my charging cord over all length is 10ft. Beats the hell out of the 2 or 3 you normally would have.
Sent from my SAMSUNG-SGH-I997 using XDA
Click to expand...
Click to collapse
Thanks for your replies.
You're right, the Motorola wall charger is only 5v output. It was the one I got with the Milestone. I do start to believe it might be the wall charger after all now.
Unfortunately I don't know anyone else with a TF (anyone reading this lives in Ghent, Belgium with aTF?). Radio Shack isn't an option either since I live in Belgium, but I'll try to find overhere or online.
Anyway, appreciate your help. Might try the freezer thing again in the meantime... you never know.
When you connect your TF to a pc on a usb 3.0 port, should you be able to see the TF charging? Or no way to get more the 5v from this too?
Sent from my Transformer TF101 using xda premium

do u know anyone with an ipad? sure the wall chargers are 15w out and should do the trick.

Alta1r said:
When you connect your TF to a pc on a usb 3.0 port, should you be able to see the TF charging? Or no way to get more the 5v from this too?
Click to expand...
Click to collapse
USB is 5V. No exceptions.
What you can do is build your own PC charger, like the one in my sig.

scottyf79 said:
do u know anyone with an ipad? sure the wall chargers are 15w out and should do the trick.
Click to expand...
Click to collapse
Cheers man, my colleague has an ipad. Will ask him to bring his wall charger.

Goatshocker said:
USB is 5V. No exceptions.
What you can do is build your own PC charger, like the one in my sig.
Click to expand...
Click to collapse
I might try that, but only if I have no other choice (i fear i'll blow up my TF while doing that).

usb chargers are 5v only and will charge but take all day. The TF charger uses the physical usb plug to do double duty. transfer data via usb and charge device using 15v when the charger block sees a gnd signal on pin 7. Charging is not usb. There are several after market chargers that have variable output voltages and an asst of connectors (usb being one) best one is dynex video charger. Also you should not attempt to flash a ROM with 10% charge as you could get stuck in the middle of a charge and have problems.

Well, it was the wall charger after all. Went out to buy a power adapter with 12v and 1000mA output and the tablet is charging again. Many thanks to all people that replied and tried to help me.
For your info: ipad or galaxy wall charger aren't working with our TF's, they both only have an out put of 5v.
Sent from my Transformer TF101 using xda premium

Alta1r said:
Well, it was the wall charger after all. Went out to buy a power adapter with 12v and 1000mA output and the tablet is charging again. Many thanks to all people that replied and tried to help me.
For your info: ipad or galaxy wall charger aren't working with our TF's, they both only have an out put of 5v.
Sent from my Transformer TF101 using xda premium
Click to expand...
Click to collapse
Never allow your charge level fall below 30% because it will cause your charger to overheat and eventually stop working.

Can I charge NExus 7 with a 5V 1A charger ?

Bought my Nexus in the US this summer, really enjoy this little beast.
I have a question regarding charging. The provided charger is a 5V- 2A charger but a US one. I have at home a HTC one X charger which delivers 5V - 1A. Can I use this charger ? What is the difference between 1A & 2A ?
Thx, Yves

yves.alexis said:
Bought my Nexus in the US this summer, really enjoy this little beast.
I have a question regarding charging. The provided charger is a 5V- 2A charger but a US one. I have at home a HTC one X charger which delivers 5V - 1A. Can I use this charger ? What is the difference between 1A & 2A ?
Thx, Yves
Click to expand...
Click to collapse
I don't see how less amps would hurt it. It may not register a charge, or charge very slowly. I would wait for another opinion.

2A will charge faster than the 1A charger. That's the only difference.

thedauntlessone said:
2A will charge faster than the 1A charger. That's the only difference.
Click to expand...
Click to collapse
OK, thank you

On the flip side, can I use my N7 charger to charge my mobile (SG2)?
My SG2 charger is set for 0.7A, while the N7 charger is set at 2A.

Mine charges with the USB cable i use to transfer files, which is about 500mA. Works but slow.

checking around the net, that's what it say.
the USB port have a maximum of 500mA i believe. And i did noticed it tend to charge more slowly. While the provided Asus charger with USB port on it, it have 2000mA (or 2A). So i guess the Nexus 7 is made to be able to support up to 2000mA, while it will charge more slowly when connected to a computer's USB port.
I took out my PSP and its charger recently, and this charger is also 5V, 2000mA, except it's a round tip made to fit the PSP charging port.
I do have another 2000mA charger, it also have a round tip, luckily it fit on my Ainol Elf II tablet. I got this charger/power supply when i bought my HDMI switcher, it work without it, so it was sitting there for all this time, unused.
i'm gonna try charging it with the provided Asus charger now.

browngeek said:
On the flip side, can I use my N7 charger to charge my mobile (SG2)?
My SG2 charger is set for 0.7A, while the N7 charger is set at 2A.
Click to expand...
Click to collapse
Yes. Your phone will not charge at the same rate as the N7, however.
Sent from my Nexus 7 using Tapatalk 2

car charger

Any idea why I can't seem to charge my Nexus 7 with my car charger?
i have both a generic Micro USB charger and I have one of the dual USB ports that you put into the cigarette lighter. It wont even acknowledge that I have plugged anything into it.
i have used the USB port to charge MANY different cell phones my old Dell Streak 7 and even a friends iPad.
Any ideas?

joeclark said:
Any idea why I can't seem to charge my Nexus 7 with my car charger?
i have both a generic Micro USB charger and I have one of the dual USB ports that you put into the cigarette lighter. It wont even acknowledge that I have plugged anything into it.
i have used the USB port to charge MANY different cell phones my old Dell Streak 7 and even a friends iPad.
Any ideas?
Click to expand...
Click to collapse
I think the N7 needs 2A to charge. a single USB is 500 mA and the dual 1A, so I don't think there's enough power.
Also check if the output of your microUSB cigarette charger is 2A

zaphyr said:
I think the N7 needs 2A to charge. a single USB is 500 mA and the dual 1A, so I don't think there's enough power.
Also check if the output of your microUSB cigarette charger is 2A
Click to expand...
Click to collapse
well i think that answers my question. thank you

This one will work: http://www.amazon.com/gp/product/B0090SVY3K/ref=oh_details_o02_s00_i00
It charges at the same rate as the stock AC charger.

The N7 is one picky device for charging. I have several chargers for the car that charge the iPad but not one will charge the N7. Same as AC chargers. This set works for me
http://www.amazon.com/dp/B008FF84K0/ref=pe_175190_21431760_M2T1_ST1_3p_dp_1

This is what I use and it works just fine. I use it to charge my N7, GNote, Nook Color or my grandsons IPhone and it works equally well on all of them.
BTW, it prime available if you are a member.

dparrothead1 said:
This is what I use and it works just fine. I use it to charge my N7, GNote, Nook Color or my grandsons IPhone and it works equally well on all of them. Very unobtrusive and I like the fact that the fuse is easily accessable.
http://www.amazon.com/Ultra-Compact...sr=8-2&keywords=ultra+compact+usb+car+charger
BTW, it prime available if you are a member.
Click to expand...
Click to collapse
That is exactly what I need to get.
Thank you.
Sent from my Nexus 7 using Tapatalk HD

It only charges via usb when the screen is off or when the device is off. Try plugging it in checking the battery % leave it awhile and then recheck the battery % you may find its gone up!
Sent from my GT-I9000 using xda app-developers app

S4 comes with 2A charger while S3 with 1A charger, can I interchange?

Hello,
Just noticed that S4 comes with 2A charger while S3 come with 1A charger. I have place where I charge a bunch of different devices in the house which has micro-USB port and all of them are using 1A. I'm wondering what repricussions I can have if I add 2A charger to the mix and will charge old devices with 2A charger and vice a versa charge S4 with 1A?

artisticcheese said:
Hello,
Just noticed that S4 comes with 2A charger while S3 come with 1A charger. I have place where I charge a bunch of different devices in the house which has micro-USB port and all of them are using 1A. I'm wondering what repricussions I can have if I add 2A charger to the mix and will charge old devices with 2A charger and vice a versa charge S4 with 1A?
Click to expand...
Click to collapse
It will be fine, I charge all my devices from my ipad 3 10W/2A @5V wall charger. Bringing one charger while travelling reduces the clutter I have to pack.
Basically if your devices are working properly, they will only pull the power they need to charge. The S4's 2A charger is capable of supplying up to 2A's but is fine supplying less if the device your charging uses less.
The actuall charging circuitry that controls the battery charging is in the phone or device, not the wall unit. The wall unit is simply the power supply.

As acruxksa mentioned, you'll be fine since the device is in control of how much power it pulls from the charger (as long as it is working properly, that is). The only thing that you may notice is when you are charging the Galaxy S4 with the older 1.0A charger it may charge slower.
Have a great day.

krsskenn said:
As acruxksa mentioned, you'll be fine since the device is in control of how much power it pulls from the charger (as long as it is working properly, that is). The only thing that you may notice is when you are charging the Galaxy S4 with the older 1.0A charger it may charge slower.
Have a great day.
Click to expand...
Click to collapse
And if in doubt, look at it this way; the phones will charge off a USB port on a computer - this is 500ma (0.5A) - so as long as your device will charge off a usb port, it will charge off a wall charger that supplies at least that much amperage. New iPads will not charge off USB ports, but it doesn't hurt them to plug them in.

Charging time
artisticcheese said:
Hello,
Just noticed that S4 comes with 2A charger while S3 come with 1A charger. I have place where I charge a bunch of different devices in the house which has micro-USB port and all of them are using 1A. I'm wondering what repricussions I can have if I add 2A charger to the mix and will charge old devices with 2A charger and vice a versa charge S4 with 1A?
Click to expand...
Click to collapse
Yes it does but as the previous reply said it takes longer.
I used the old s3 cable at the office charging s4 but it takes long time to get the battery % up. It usually takes my s4 from 1% to 100% within an hour and half time but with the s3 cable it takes good 3 -4 hour or so.
I wouldn't take the s3 cable for travelling though. it will take too long for me to charge in coffee shops and what not when I am moving around the destinations.
So far, I am very impressed with the charging time of S4.. Love the device.

acruxksa said:
It will be fine, I charge all my devices from my ipad 3 10W/2A @5V wall charger. Bringing one charger while travelling reduces the clutter I have to pack.
Basically if your devices are working properly, they will only pull the power they need to charge. The S4's 2A charger is capable of supplying up to 2A's but is fine supplying less if the device your charging uses less.
The actuall charging circuitry that controls the battery charging is in the phone or device, not the wall unit. The wall unit is simply the power supply.
Click to expand...
Click to collapse
I don't understand why all current control is on device itself why not manufacturers just suppl 3A chargers for all the phones since it can be used for any device out there.

alphadog00 said:
And if in doubt, look at it this way; the phones will charge off a USB port on a computer - this is 500ma (0.5A) - so as long as your device will charge off a usb port, it will charge off a wall charger that supplies at least that much amperage. New iPads will not charge off USB ports, but it doesn't hurt them to plug them in.
Click to expand...
Click to collapse
That's how I rationalized using my One S chargers
---------- Post added at 08:52 PM ---------- Previous post was at 08:43 PM ----------
artisticcheese said:
I don't understand why all current control is on device itself why not manufacturers just suppl 3A chargers for all the phones since it can be used for any device out there.
Click to expand...
Click to collapse
Good question. Maybe because the higher amp batteries have not been out that long compared to all the years smartphones have been sold. They may start making 3A only. Also, companies may sell less chargers if one size fits all. No need to buy a new one when you change phones.
I do know when I charge the S4 with my One S charger it does take longer, as mentioned, and very slow off USB. The One S charger end also gets somewhat warm charging the S4. The S4 charger does not. That would lead me to believe it is pulling a little more current than charger was designed for. But, probably not an issue. USB does not get warm. But, is a good quality one and heavily shielded.

artisticcheese said:
I don't understand why all current control is on device itself why not manufacturers just suppl 3A chargers for all the phones since it can be used for any device out there.
Click to expand...
Click to collapse
In case someone buys a 10amp cheap charger and ends up frying the phone. Thus Samsung protects it self from dummy users and from million dead phones warranty swaps.
I'm using a USB car charger that puts out 2.1amps and its super fast. USB 2.0 on my laptop takes a while to charge it. Some times I use iPhone charger with Nokia cable or with WD hard drive USB wire. They all work just fine but charge at different rate.
Sent from my SAMSUNG-SGH-I337 using xda app-developers app

artisticcheese said:
I don't understand why all current control is on device itself why not manufacturers just suppl 3A chargers for all the phones since it can be used for any device out there.
Click to expand...
Click to collapse
The bigger the charger, more expensive it is. Manufacturers want to save money.

Wow. Way to necro this thread...

Necro--
Damn, thank goodness for Urban Dictionaries for OLD farts--
Had to look that one up

so if i will charge my S3 with a 2A charger i wont see any major change from the 1A, correct? I have the Boeffala kernel and at the AC charge is set to 1,1A so if i have a 2A charger i guess it should charge faster.

The phone will only draw the maximum it can. The 2A charger will charge it at the same speed as the 1A charger.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app

Red_81 said:
The phone will only draw the maximum it can. The 2A charger will charge it at the same speed as the 1A charger.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Maybe it is a placebo effect, but when I charge my S3 with my S4's charger it does seem faster. Quite a few of my coworkers that have used my S4 charger at work also thought it charged faster.
Either way I have charged my S3 with it very often with no I'll effects, so OP you should be safe to do so.
Sent From My Spiderman,Ironman,Red,Dark Blue,Green, GreyedOut BadAss Themed I337

Install battery monitor widget and you will be able to see how much it's pulling on each charger
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app

Is there no way to charge faster than ~250mA using "conventional" charging methods?

Is there no way to charge faster than ~250mA using "conventional" charging methods?
sorry for the newbie question, but i am loving this phone so far EXCEPT i have never been able to charge it to more than 60% so far because i dont have the original charger. and every single other method i've tried charges it around 200mA (measured by ampere) and it only goes up around 10% after 10 hours of charging
previously, i use a LG G3 and i get 1000mA via various methods like:
-plugging it into the computer's USB3 or USB2 port on the charging only mode
-using older "fast" chargers that range between 1.5A to 2.0A
I'm using a standard USB-C cable (bought from amazon) with the above
if i dont get the "newer" chargers, is there any way i can still charge the essential to a "reasonable" speed?

You can use one of the power delivery chargers (Anker, Aukey, etc) on Amazon. They will fast charge the PH-1. The charger for Chromebook Pro and MacBook also works well. Might also be able to get a replacement charger from Essential depending on where the phone was originally purchased. They sent me a free replacement charger and cable after the original charger stopped working.
Sent from my PH-1 using Tapatalk

seabro01 said:
You can use one of the power delivery chargers (Anker, Aukey, etc) on Amazon. They will fast charge the PH-1. The charger for Chromebook Pro and MacBook also works well. Might also be able to get a replacement charger from Essential depending on where the phone was originally purchased. They sent me a free replacement charger and cable after the original charger stopped working.
Click to expand...
Click to collapse
https://shop.essential.com/products/fast-charger
Sent from my PH-1 using XDA Labs

avd said:
https://shop.essential.com/products/fast-charger
Sent from my PH-1 using XDA Labs
Click to expand...
Click to collapse
I'm assuming "if I don't buy one of the newer chargers" means they don't want to purchase the official charger from Essential.
Sent from my ONEPLUS 3T using Tapatalk

It sounds like you need a new cable or power brick, the cable being the likliest point of failure.

geminihc said:
sorry for the newbie question, but i am loving this phone so far EXCEPT i have never been able to charge it to more than 60% so far because i dont have the original charger. and every single other method i've tried charges it around 200mA (measured by ampere) and it only goes up around 10% after 10 hours of charging
previously, i use a LG G3 and i get 1000mA via various methods like:
-plugging it into the computer's USB3 or USB2 port on the charging only mode
-using older "fast" chargers that range between 1.5A to 2.0A
I'm using a standard USB-C cable (bought from amazon) with the above
if i dont get the "newer" chargers, is there any way i can still charge the essential to a "reasonable" speed?
Click to expand...
Click to collapse
I'm using the following and all work fine:
LG G6 factory charger
Essential Factory Charger
Aukey wall charger with Quick Charge 3.0
https://smile.amazon.com/gp/product/B01FJ5TMC2/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
AUKEY Amp USB Charger with USB C Port & 4 USB Ports
https://smile.amazon.com/gp/product/B01DZ4KHYQ/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
You need to buy a charger that supports Quick Charge if you want to charge rapidly.
Otherwise figure on nothing more than about 500mA.
At 500mA from empty figure 6 hours to charge.
Buy a charger.