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Hello all,
So I just bought a new charger (just a wall charger) and now when I plug my TB in, the screen does not respond to anything! I have to take the plug out to work my screen. It is completely unresponsive (regardless of where I'm at on the screen) while charging. As soon as I unplug it, it's fine.
Any ideas?
Where did you buy the charger from? Some crappy no-name/ebay/cheap chargers do that because they are crap. I had bought a cheap charger for my HTC Touch Pro 2 and that same thing happened, used the regular charger, no problems at all.
I know when I used the charger and cable that came with the thunderbolt, it used to become laggy or less responsive. Not terrible, but I could notice it. It was like all the memory was tied up. It doesn't do it anymore though. I rarely use the original cable and charger anyways.
g00s3y said:
Where did you buy the charger from? Some crappy no-name/ebay/cheap chargers do that because they are crap. I had bought a cheap charger for my HTC Touch Pro 2 and that same thing happened, used the regular charger, no problems at all.
Click to expand...
Click to collapse
Indeed. The cheap $1.00 chargers may also harm your battery.
daniel178 said:
Hello all,
So I just bought a new charger (just a wall charger) and now when I plug my TB in, the screen does not respond to anything! I have to take the plug out to work my screen. It is completely unresponsive (regardless of where I'm at on the screen) while charging. As soon as I unplug it, it's fine.
Any ideas?
Click to expand...
Click to collapse
Today I tried to charge my phone at work using my original.al charger that I always use and while it was plugged in, the screen wouldn't respond at all. I thought the phone was the problem but I later troubleshot it to low voltage from the extension cord, not my charger.
There are in fact quite a few micro-usb chargers that cause the screen to become unresponsive when plugged in.. This doesn't necessarily mean that the charger is crap, but it's best to use your manufacturer-approved (oem) chargers whenever possible. I work in wireless, and although our supplier is reputable, their generic chargers don't work well with the Atrix & a few other smartphones. I use them only when necessary, but do your phone a favor & stick to manufacturer chargers.
I had this problem, when I use a properly grounded surge protector the problem doesn't happen any more. It also happens to me when I charge out of my old macbook pro which tends to have a 'staticy' feel to it.
zoso28 said:
There are in fact quite a few micro-usb chargers that cause the screen to become unresponsive when plugged in.. This doesn't necessarily mean that the charger is crap, but it's best to use your manufacturer-approved (oem) chargers whenever possible...
Click to expand...
Click to collapse
You're two months late with your incorrect post. There's a well defined standard for USB chargers, which the TB follows. Non-OEM ones work every bit as well as the HTC one as long as they, too, follow the standard and provide clean power.
mike.s said:
You're two months late with your incorrect post. There's a well defined standard for USB chargers, which the TB follows. Non-OEM ones work every bit as well as the HTC one as long as they, too, follow the standard and provide clean power.
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Click to collapse
Sorry my timing bothered you I was just browsing around for info about the touchscreen issues i've seen. I'm well aware of the standard, 5 +/- 0.25 volts 500–900 mA, and they all seem to charge perfectly well but certain phone/charger combos cause some screens to lag & I just wondered why. For example the motorola adapters all seem to be 5.1 volts @ 850mA, whereas samsung adapters are 5.0 volts @ 700 mA, and the samsungs charge fine on our standard 5/500's while the moto's lag.
zoso28 said:
SI'm well aware of the standard, 5 +/- 0.25 volts 500–900 mA, and they all seem to charge perfectly well but certain phone/charger combos cause some screens to lag & I just wondered why. For example the motorola adapters all seem to be 5.1 volts @ 850mA, whereas samsung adapters are 5.0 volts @ 700 mA, and the samsungs charge fine on our standard 5/500's while the moto's lag.
Click to expand...
Click to collapse
It's not clear where the "500-900 mA" and "standard 5/500" figures you give come from. Neither is from the USB Battery Charging Specification.
The spec supports up to a 1.5 A current from a Dedicated Charging Port. The HTC charger is rated at 1 A, and it seems the TB will use all of it. I've seen charging rates of 800 mA, with the phone also running screen, GPS, and more.
Cheap ones, regardless of output, may be poorly filtered with a significant AC component. Those are the ones which will really cause problems.
I lost my wall charger that came with my HP touchpad. The round plug thingie is what I'm looking for. Searching on Amazon brings up a number of items, for example:
http://www.amazon.com/HP-North-American-Charger-TouchPad/dp/B0055QYJJM/ref=dp_cp_ob_e_title_3
However, is there an alternative that works? I was able to use the Evo cable rather than the original HP sync/charge cable that came with the wall charger, but is there an alternative wall plug that works as well? Paying almost $28 for a charging cable seems a bit ridiculous.
Any help and advice would be most appreciated.
[[FOUND MY ANSWER]]
I found that Walmart was having a sale on the North American charger with the barrel wall connector for $11.99 and Meritline was having a sale for 6' long USB to micro-usb cables (pair for $4.99 no tax/shipping).
The listing on the Meritline page says that the cables are compatible with the Evo.
Given that the cable that comes with the HP barrel charger is pretty much monkey spit and fails within a month, I found a solution that works for less than $20.
Links are below:
Walmart HP Touchpad charger
http://www.walmart.com/ip/HP-TouchPad-Accessory-Travel-AC-Wall-Adapter-Charger/16641536
Meritline Cables (use this code MLCK222YNL1 for discount (cannot guarantee how long this code is good for, drops the price for a twin pack of the 6' cables from $10.99 to $4.99)
http://www.meritline.com/showproduc...e=6-feet-high-speed-micro-hdmi-cable-ethernet
Pretty much any USB charger will work, but most give a notification on the Touchpad screen indicating that they may not be charging. This is because the official charger is at the high end of both voltage and current capability. I charge from laptop, desktop and a variety of Blackberry chargers with no issue, but the available current will determine how long it takes to charge and whether it charges much while the screen is on. Go for a USB charger that gives you 2 Amps and you should be fine.
dmarchant said:
Pretty much any USB charger will work, but most give a notification on the Touchpad screen indicating that they may not be charging. This is because the official charger is at the high end of both voltage and current capability. I charge from laptop, desktop and a variety of Blackberry chargers with no issue, but the available current will determine how long it takes to charge and whether it charges much while the screen is on. Go for a USB charger that gives you 2 Amps and you should be fine.
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Click to collapse
Thank you for the advice. To be more specific, can you recommend any alternative charging cables/wall charger units specifically?
Any brand name USB charger that gives off 2 amps should be fine. I tend to stay away from really cheap generic chargers. Any microUSB cable should be fine even a generic one if it has decent reviews. I worry about generic chargers since a poorly regulated one could send a voltage too high, but generic cables should be fine.
The chargers I am currently using, as well as the one that came with the TP, are the one that came with a Blackberry Playbook and the one from my HTC Desire HD.
The Blackberry charger gives an error on the screen that it may not charge the TP, but as it gives 2 amps, charges in pretty much the same time as the official unit.
The HTC again gives the warning and takes about twice as long to charge.
what about the nook color charger i know it higher amps might work as well
cesar2010 said:
what about the nook color charger i know it higher amps might work as well
Click to expand...
Click to collapse
I just tested the TP with a charger for the NC, and unfortunately, it still gives the same "may not charge" warning...
There is NO after market charger that will charge at full rate like the HP barrel charger!
At best they will trickle charge at a much lower rate and take considerably longer to charge.
The TP relies on precise signaling which it will only get from the OEM item or specially modded after market units or cables.
Do a google for further info ie webosnation.com forums.
I think your looking for a 5.1v charger, aka rapid charger. This is used by the iPad, and some android phones like the Motorola droid 3, razr and htc rezound.
I could be wrong though,I haven't gotten my touchpad yet.but I do own all said device above (except the razr) and they all use the faster charging technology.
Sent from my rezound.
Izeltokatl said:
I think your looking for a 5.1v charger, aka rapid charger. This is used by the iPad, and some android phones like the Motorola droid 3, razr and htc rezound.
I could be wrong though,I haven't gotten my touchpad yet.but I do own all said device above (except the razr) and they all use the faster charging technology.
Sent from my rezound.
Click to expand...
Click to collapse
They will not work at full rate!
No one else uses 5.2 volts
Sent from my Samsung Galaxy S2
Don't believe all the hype about using ONLY the HP charger, there are many that do the job perfectly well. Too many people make these authoritarian statements and all they do is cause FUD.
At my office, I use the AC charger from my last Samsung phone (mythic) and it works IDENTICALLY to the OEM one. I have also used a Moto and and LG with NO PROBLEMS. I have no issues getting to fully charged in little time.
At home, my OEM cable is plugged into a high-power USB port (2.1A, I believe) and it has no problem charging from near zero to full as well. Front or top-mounted USB ports tend to be 500mA or less, but the rear ones (coming directly off the motherboard) tend to have a higher supply. I also use a non-HP USB cable occasionally and it works fine.
(I got my TP during the original fire-sale and have been charging it these ways ever since with ZERO ISSUES.)
R1ptide said:
No one else uses 5.2 volts
Sent from my Samsung Galaxy S2
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Click to collapse
The small voltage difference is marginal and isn't going to matter, the internal hardware should be able to tolerate a few tenths of a volt difference. In fact, I tested my Motorola charger rated at 5.1v and the Touchpad charger rated at 5.2v on a multimeter. The Motorola charger was outputting 5.20v and the Touchpad charger 5.16v. Granted this is at no load, but switching transformers are regulated so they should supply rated voltage at any current draw equal to or less than rated. Also depending on how well the voltage is regulated there may still be a slight AC ripple that the device has to deal with.
Does anyone know the time difference between using the TP charger and a standard droid/blackberry charger? Also curious if the charges last the same. I know theoretically they should since the battery is full either way, but electricals can be tricksiy..
sirclesam said:
Does anyone know the time difference between using the TP charger and a standard droid/blackberry charger? Also curious if the charges last the same. I know theoretically they should since the battery is full either way, but electricals can be tricksiy..
Click to expand...
Click to collapse
Its all down to the charge rate that the TP is able to draw.
2A which is theoretically possible from TP AC barrel charger would charge the 6A+ battery of the TP from flat to full in approximately 6.5 hours.
If the BB charger were able to have 500mA drawn by the TP then it would fully charge in approximately 26 hours.
The charges would be no different.
To convert any regular USB charger into a TouchPad charger you need to add 2 resistors as per the diagram attached.
The presence of the resistors will trigger the TouchPad to draw the full 2A from the charger rather than the trickle charge it does when they are not there.
Please do not modify a cheap charger that is only rated for 500mA as you will most likely overheat it and it could present a fire risk.
stuart_f said:
To convert any regular USB charger into a TouchPad charger you need to add 2 resistors as per the diagram attached.
The presence of the resistors will trigger the TouchPad to draw the full 2A from the charger rather than the trickle charge it does when they are not there.
Please do not modify a cheap charger that is only rated for 500mA as you will most likely overheat it and it could present a fire risk.
Click to expand...
Click to collapse
Just pointing out that you need to start with a charger that is rated at least 2Ah to start with.
You can't turn a low rated one into a high rated one.
pa49 said:
Just pointing out that you need to start with a charger that is rated at least 2Ah to start with.
You can't turn a low rated one into a high rated one.
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Click to collapse
oh, for the love of gods. REALLY? I was just asking for a replacement cable. I don't want to reinvent the charging paradigm. I just need a simple recommendation for a cable. If a thread could be highjacked any further I don't know how it could be.
I appreciate all your "advice" but seriously, this is NOT what I was asking.
Anyone know if I can get a similar cable in the UK? Kind of lost my TP cable, and I miss the flexibility the long cable gave me, it was so much easier to use on charge!
well i know that my tbolt cable works. i have to use the tp adapter though. my tbolt adapter makes the touchpad say that the charger is incompatible.
I'm checking out solutions for mobile battery packs that are compatible with the Tf700. I've just purchased a veho pebble 13,200mah battery (link below if it let's me)
http://www.amazon.co.uk/gp/product/...m=A3P5ROKL5A1OLE&pf_rd_r=0SZEM38A0PCXEMC434RR
While it didn't come with the right adaptor I figured I could work out the various connections. The problem is I've realised it's 16V whereas the original charger is 16v so the question is EVEN if I manage to figure out the connections, would using 16v potentially damage the tablet?
Thoughts appreciated
DNO1978 said:
I'm checking out solutions for mobile battery packs that are compatible with the Tf700. I've just purchased a veho pebble 13,200mah battery (link below if it let's me)
http://www.amazon.co.uk/gp/product/...m=A3P5ROKL5A1OLE&pf_rd_r=0SZEM38A0PCXEMC434RR
While it didn't come with the right adaptor I figured I could work out the various connections. The problem is I've realised it's 16V whereas the original charger is 16v so the question is EVEN if I manage to figure out the connections, would using 16v potentially damage the tablet?
Thoughts appreciated
Click to expand...
Click to collapse
If it puts out true 16v then it could damage the Infinity. Measure the output voltage of the power pack with a multimeter.
The battery pack that I bought for the TF700 is the Anker Astro3 10000mAh. It has switchable output 5V / 9V / 12V. The TF700 will charge at 12v (car voltage). There was a brief discussion a couple of months ago about battery packs and what you will need:
Previous Discussion: http://forum.xda-developers.com/showthread.php?t=1924906
David
DavidHart said:
...The battery pack that I bought for the TF700 is the Anker Astro3 10000mAh. It has switchable output 5V / 9V / 12V. The TF700 will charge at 12v (car voltage). There was a brief discussion a couple of months ago about battery packs and what you will need:
Previous Discussion: http://forum.xda-developers.com/showthread.php?t=1924906 ...
Click to expand...
Click to collapse
I went this route using these USB adapter. Works well. You can use the tablet and phone on it at the same time; I was using my cellphone as a hotspot.
Thanks for the replies, I had already seen that post but I was hoping to be able to answer the 16v question as I had read in other places that 15v should be okay with 16v. I was hoping to get confirmation either way from someone know knew lots about electronics and voltage.
The main reasons for this are 1) I already have the battery 2) it's a brand I know and trust 3) It has a bigger capacity. However I'm a bit reluctant to using my tablet as an experiment so it's looking increasingly likely I'll have to return the veho pebble and pick up the Anker one.
Out of interest how long does it take to charge the Anker? From what I understand the input is only 5v so I'm guessing it's a good 6-8 hours? Also how long does it take to care the tablet itself?
Thanks
The first charge takes the longest, which is probably in that eight hour range. I haven't ran the Anker dead yet. I usually charge it back up after I used it, so it's fully changed whether dead or just a little. But it's a few hours.
The tablet takes about three hours or so from completely dead, assuming it's off. You can charge the tablet back up on the Anker.
I don't know about much on the electricity. I'm sure the tablet has a regulator of some sort, but couldn't say if 16v in would fit with in it or not.
There other larger battery packs like Anker. The problem is most don't have a way to put out the amps needed to register a charge for the tablet. Most just have USB ports, and limit the output to the normal .5mha that work with 90% or other usb devices.
Gday All,
I realise that this topic has been mentioned in a few threads, but from what I could find, there is no definiteve fix.
Is there a way to disable this so that a non-genuine charger will work once the screen turns off, or if I was to root the device, is there then a way to do it.
Please dont flame me, I'm a total newb to android, and I dont mind admitting that.
Bit dissapointed that Samsung has sunk to this.
TIA!
Not sure what issues you are having but I have been using a few different chargers without issue. Which exact charging method are you trying to use (cable type, charger type, charger rated output voltage and amperage)?
Sent from my SM-P900 using Tapatalk
The problem isn't that the charger is 3rd party.
The problem is that the device requires a 5.1V 2A charger or higher.
Anything lower than that is simply not powerful enough. You can find these specs in small lettering on the charger. Most cheap 3rd party launchers are 5V 1A.
CrazyManR32 said:
Gday All,
I realise that this topic has been mentioned in a few threads, but from what I could find, there is no definiteve fix.
Is there a way to disable this so that a non-genuine charger will work once the screen turns off, or if I was to root the device, is there then a way to do it.
Please dont flame me, I'm a total newb to android, and I dont mind admitting that.
Bit dissapointed that Samsung has sunk to this.
TIA!
Click to expand...
Click to collapse
I was one of the ones having problems with it needing to have the screen on to charge. It was a problem with the charger (yes, it was marked as a high amperage charger), changed to a different one (Anker 40W 5 port) and it's working fine.
ericbergan said:
I was one of the ones having problems with it needing to have the screen on to charge. It was a problem with the charger (yes, it was marked as a high amperage charger), changed to a different one (Anker 40W 5 port) and it's working fine.
Click to expand...
Click to collapse
Huge second on the Anker. I love that charger by the way. With various devices I would get irritated with some refusing to charge on certain chargers (my BlackBerry Bold in particular). I've since switched to the Anker 5 port 40 Watt and no longer worry about which cable I'm reaching for. Every device gets the power it needs with no fuss.
muzzy996 said:
Not sure what issues you are having but I have been using a few different chargers without issue. Which exact charging method are you trying to use (cable type, charger type, charger rated output voltage and amperage)?
Sent from my SM-P900 using Tapatalk
Click to expand...
Click to collapse
Initially i was using a belkin 2 port, 2.1amp per port charger, which would start charging but stop once the screen was off.
ShadowLea said:
The problem isn't that the charger is 3rd party.
The problem is that the device requires a 5.1V 2A charger or higher.
Anything lower than that is simply not powerful enough. You can find these specs in small lettering on the charger. Most cheap 3rd party launchers are 5V 1A.
Click to expand...
Click to collapse
This seems logical, but it does work when i use the genuine charger from my sgs3 which is a 5vdc 1a charger. Takes all night to charge, but charges non the less.
ericbergan said:
I was one of the ones having problems with it needing to have the screen on to charge. It was a problem with the charger (yes, it was marked as a high amperage charger), changed to a different one (Anker 40W 5 port) and it's working fine.
Click to expand...
Click to collapse
Thanks for the info mate, ill see if i can get hold of one of these in australia, that being said, it appears that these are also 5v rather then the 5.3?
CrazyManR32 said:
This seems logical, but it does work when i use the genuine charger from my sgs3 which is a 5vdc 1a charger. Takes all night to charge, but charges non the less.
Click to expand...
Click to collapse
That's because the retention rate of the S3's charger is higher than that of a generic cheap 3rd party one. Where the S3 charger actually delivers 0.8-1A, the cheaper ones usually average around 0.5A.
This is why charging over a usb 2.0 port without any power boosts also (usually, there have been some exceptions) doesn't work.
I usually charge mine with my Note 3 or S5 charger, as the three are all the same charger.
I've seen a few things online with no charging problems. Mine will charge but super slow. Overnight it will only charge to about 73%. Tried battery calibration and still nothing. Any tricks or fixes I don't know about?
Are you using the original charger and cable? You need at least a 2amp charger and the original cable to charge properly.
Transmitted via Bacon
timmaaa said:
Are you using the original charger and cable? You need at least a 2amp charger and the original cable to charge properly.
Transmitted via Bacon
Click to expand...
Click to collapse
He is right. Older chargers are not 2 amp, and so they will charge, but very slowly. You don't have to necessarily use the original cable, or the stock charger. Really any cable will get you fast charging as long as the block that plugs into the wall is a 2 amp. Chargers that will charge tablets usually work. My wife has an LG G3 and the charger for that works as well.
bradleyw801 said:
He is right. Older chargers are not 2 amp, and so they will charge, but very slowly. You don't have to necessarily use the original cable, or the stock charger. Really any cable will get you fast charging as long as the block that plugs into the wall is a 2 amp. Chargers that will charge tablets usually work. My wife has an LG G3 and the charger for that works as well.
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Click to collapse
Totally untrue and very bad, maybe even dangerous, advice...
Use a sub-standard cable with a 2 amp charger and you run a very serious risk of overheating, damaging the phone or charger, and even the risk of an electrical fire.
Always use good quality cables and chargers, and read other people's recommendations as to what are good. Buying a cheap set just to save a few quid could cost you your phone, or much more.
SimonTS said:
Totally untrue and very bad, maybe even dangerous, advice...
Use a sub-standard cable with a 2 amp charger and you run a very serious risk of overheating, damaging the phone or charger, and even the risk of an electrical fire.
Always use good quality cables and chargers, and read other people's recommendations as to what are good. Buying a cheap set just to save a few quid could cost you your phone, or much more.
Click to expand...
Click to collapse
I agree if you buy a cable that ignores safety standards you could cause a fire, but that to me just has to do with being a cheap cable. Here is some information that supports what I am saying:
http://www.extremetech.com/computin...ks-or-how-to-avoid-blowing-up-your-smartphone
To quote that article "USB 1.0 and 2.0 specs, a standard downstream port is capable of delivering up to 500mA (0.5A); in USB 3.0, it moves up to 900mA (0.9A). The charging downstream and dedicated charging ports provide up to 1500mA (1.5A)"
Also, "You can plug any USB device into any USB cable and into any USB port, and nothing will blow up — and in fact, using a more powerful charger should speed up battery charging."
So perhaps I should explain to the person that asked the question, if your cable is more than a few years old, it may still charge slowly. You need it to be at least USB 3.0. But most cables sold in the last few years are USB 3.0.
Using a cheap quality cable, sure, that's always a bad idea no matter what. Using an older cable, the worst that could happen (assuming it's not in poor condition) is that it will only let .5amps through.
I charged mine last night for 7 hours and it only has 22% battery.
I originally bought a One Plus One in February 2015. It broke and I had to go through the extensive RMA process. Since they shipped the replacement phone to me, I have been noticing more and more problems. The latest being the charging. I cannot get it to charge correctly. Since the RMA process took a month (Feb 22 - March 22), I'm very reluctant to do it again. Considering selling this and going back to AT&T. Or at least some company that has phone support/any support.
I plugged it in 5 minutes ago at 7% battery and now its dead.
Jess650 said:
I charged mine last night for 7 hours and it only has 22% battery.
I originally bought a One Plus One in February 2015. It broke and I had to go through the extensive RMA process. Since they shipped the replacement phone to me, I have been noticing more and more problems. The latest being the charging. I cannot get it to charge correctly. Since the RMA process took a month (Feb 22 - March 22), I'm very reluctant to do it again. Considering selling this and going back to AT&T. Or at least some company that has phone support/any support.
I plugged it in 5 minutes ago at 7% battery and now its dead.
Click to expand...
Click to collapse
Are you using the original charger and cable?
Thanks for input guys. I do not have my original charger anymore. My wife's new kitten has made quick work if several chargers. I purchased one yesterday at local Verizon store. 2amp chargers are actually hard to find. So this is what I got. It charges fast again. Charged my phone from 5% to 71% in about 40 minutes. This model actually States 2.1 amp.
A great replacement is the original Blackberry Playbook charger with the non-removeable cable. Almost as fast as my original charger and a sensible price as well.
Install any ROM except the ones based on Omni.. (like the SlimROMs) and flash boeffla kernel. Keep the AC Charging Current up to 2200A. It says it may damage the USB Cable or charger but nothing ever happened to my Galaxy S3 (on the same kernel) or OPO. It charges extremely fast with the original USB cable and charger. Try it! Worked for all my friends!