Database Users

A doubt about htc charger.

I have an hd 2 and its a used one when i bought it. So i dont get the original charger. I got a samsung charger @ 5v, 700ma. But when i connect it, the phone shows usb detected. Though its charging, its pretty slow, i think the usb mode makes it. Taking only few 100-300ma only. And the charging takes long. I know htc need 1amp charger. But i cant get it here. So i decided to rip the charger and make some modifications ( like grounding or shorting the data pins- the middle two) . So i need a little help. Any of you guys having an htc original charger pls help me. Howz the data pins connected in the original charger? Are they shorted together or they are open? Or they are grounded? Pls help me those who know abot it. I want to make my charger form usb charging to default charging. It badly needed
send from my hd2 @ miui 1.12.2

That's weird. I've got original Samsung 0.7A charger here and HTC Desire HD does detect it as charger aswell and takes 1A from it. Shortening datapins together does usually convince most of phones that they are connected to wall charger. Maybe it's not the case for HD2.

Samsung Galaxy Phone Rapid Charger Modcheck this thread few under yours... speaking of shorting data pins.

HD2 is same as most, requires 2 data pins to be shorted together (2 inner pins).
Easy mod on most charger units. If charger is a cheap china job, the quoted 700mA figure could be optimistic ... temporary mod it by shorting data pins together & see how it performs ...

But there are 3 pins and not 4. So which ones are the middle?
send from my hd2 @ miui 1.12.2

Can you supply a good picture of this.

showlyshah said:
But there are 3 pins and not 4. So which ones are the middle?
send from my hd2 @ miui 1.12.2
Click to expand...
Click to collapse
Sorry thatz an error. I mean 5 pin and not 4. All the pins are present( which are prsent in data cable)
send from my hd2 @ miui 1.12.2

Maybe this will help ...

Is it microusb?
You're supposed to shorten D+ and D-, but rather in charger. ;P

Mister B said:
Maybe this will help ...
Click to expand...
Click to collapse
Is that micro usb?
send from my hd2 @ miui 1.12.2

Thakz dude
send from my hd2 @ miui 1.12.2

@ mister b and rebelloz ..
Thankz dude. I will click thankx button when i get to pc. Now i am frm phone
send from my hd2 @ miui 1.12.2

Very useful guide as I am facing the same problem. Thanks.

Useful guide i am also facing the same problem...

can anyone confirm if it worked for them? I made an adapter by shorting both data leads, but it didn't work for me. My phone will charge when switched off, but when it's on with both gps and data running, it barely gets enough current to charge the battery. Only my original cable works.

stanburn said:
can anyone confirm if it worked for them? I made an adapter by shorting both data leads, but it didn't work for me. My phone will charge when switched off, but when it's on with both gps and data running, it barely gets enough current to charge the battery. Only my original cable works.
Click to expand...
Click to collapse
What device?
Signalling a dumb charger with MiniUSB (as opposed to MicroUSB) is less standardized. On most MiniUSB devices it's done by shorting pin 4 to pin 5, but it varies.

I could be wrong about this (someone please correct me if I am), but I believe the transformer inside the charger will need physically replacing if you're going to be pulling more current from it. If it's not too much over the charger's rated current it may be ok, but I've burned up more than one of them by hooking it up to something that draws more than what they were designed for.

xHausx said:
I could be wrong about this (someone please correct me if I am), but I believe the transformer inside the charger will need physically replacing if you're going to be pulling more current from it. If it's not too much over the charger's rated current it may be ok, but I've burned up more than one of them by hooking it up to something that draws more than what they were designed for.
Click to expand...
Click to collapse
Depends as part of the reason of the mod is to achieve full power draw of a acceptable rated charger by making the phone think it is connected to HTC charger & thus charge at mains rate of 1A or a little above rather than USB standard of 500mA. Most chargers of reasonable quality will supply 800mA to 1.2A & if you buy wisely a bit higher.
Issue arises on cheap china chargers with false specs that actually only handle 500mA & perhaps 800mA max for short bursts but when these are forced to supply more will fail.
A good quality charger will have no problem supplying full charge to a HTC handset ...

A good example - getting a non-iDevice to pull its full rated charge current from an iPad charger (charger rated 2.1A, but nothing but iDevices will pull any more than 500 mA from it without modifications.)
A good example of cheap Chinese chargers - the "1A" chargers carried by Monoprice. They're good for 300-400 mA at best. You won't burn them out as it's a fundamental current limit setting of the SMPS chip, but the voltage will droop if you try to pull too much out of it. It's the only Monoprice product I've ever been disappointed with.

Originally Posted by stanburn
can anyone confirm if it worked for them? I made an adapter by shorting both data leads, but it didn't work for me. My phone will charge when switched off, but when it's on with both gps and data running, it barely gets enough current to charge the battery. Only my original cable works.
Click to expand...
Click to collapse
What device?
Signalling a dumb charger with MiniUSB (as opposed to MicroUSB) is less standardized. On most MiniUSB devices it's done by shorting pin 4 to pin 5, but it varies.
Click to expand...
Click to collapse
sorry about that, I have the HD2. if I use the replacement cable with both data lines I shorted, it never charges when the phone is running. but if I swap my original cable the phone charges normally.
it's as though it ignores the shorted data lines, or maybe the HD2 doesn't really work that way?
I'm worried because my original cable is beginning to show signs of wear and tear.
Sent from my HTC HD2 using XDA

[Q] Modifiy Nexus 10 For Qi Wireless Charging?

In short, could we slap a Qi-compliant coil in our Nexus 10, wire it to the battery, and win?
The coil itself is pretty thin from what I've seen, and there is a bit of room in-between the battery and back plastic (the people with creaky and buckling cases should know about this).
I don't know if there's an actual control board that is needed, but perhaps the coil could be hooked either directly to the battery, or even through USB (that way you can be notified of charging). If a control board is needed, then this might be a bit harder than expected, unless the board itself is pretty thin too.
It looks like someone's managed to do something similar to a Nexus 7 already and had good results (even enters docking mode): http://forum.xda-developers.com/showthread.php?t=2070851
Edit: Instead of routing the coil to the USB or battery directly, we could even hook it to the Pogo pin area, like the person did for the N7 coil mod above.
I'm willing to give this a try, but may have to wait a few weeks till I can get the funds for a coil and for it to ship to me.

espionage724 said:
In short, could we slap a Qi-compliant coil in our Nexus 10, wire it to the battery, and win?
Click to expand...
Click to collapse
According to a-post-at-techchrunch-i-cant-link-to-cause-im-a-noob, the Nexus 10 has Qi already... is it wrong? I haven't opened my Nexus 10 to check

I have openned up my Nexus 10 and dont remember anything for wireless charging being there.
I saw someone mod the Galaxy nexus to enable this sort of thing and from what I remember you should be right Espionage, just as simply as you think. And yes there is room to do it.

xiq said:
According to a-post-at-techchrunch-i-cant-link-to-cause-im-a-noob, the Nexus 10 has Qi already... is it wrong? I haven't opened my Nexus 10 to check
Click to expand...
Click to collapse
I can find no reference to the device on the offical Qi website. This makes me highly skeptical that Qi is already present on the N10, perhaps they confused it with the N4?
Search for yourself if you'd like: http://www.wirelesspowerconsortium.com/products

As slow as the Nexus 10 already charges with it's stock USB cable... do you really WANT to charge it with Qi? :laugh:
You might have to charge it for a week from 0% to get to 100%

Any further developments?
Hey Guys!
Is there any further developments on this possibility? :fingers-crossed:

Why not just use a pogo cable.... you would have to plug in a charging pad anyway.

Nexus 10 Wireless Charging Solution
I know it's been some time but I'm kind of surprized nobody posted a solution yet. I just had a Nexus 10 open and noticed not for the 1st time the pogo pins at the bottom that Google never even put to use. I can't even find an aftermarket docking station for it. We aren't talking about Apple here. Anyways the closest I've seen is a magnetic pogo pin charging adapter cable probably sold mostly to people who broke their USB ports. It seems nobody picked up on sewermike's comment. They DO have pogo pins and with a wireless coil (2-4 chained together) you could wire them to the + and - of the pogo pin cable easily. Also if you have access to old Nexus 2nd gen back covers you can get them there or on eBay cheap. It might be slow like TheAltruistic says but if you have a wireless device charging coffee table which I'm seeing more and more you can just set it on that. If I have time I'll do video or at least post my results.

ive got the pogo cable, if you can buy it do so - its well worth it, i think i paid £15 and i totally stand by it.
as for wireless charging, you can get wireless charging receiver cards that plug into the micro usb port, with this you can either plug it in and bend the cable around the tablet and hide it inside the case or plug it in and have it hang outside, you just rest the card on the charger.
please remember that is isnt a perfect solution as the card will get hot and overheat and stop charging or you'll spend all day charging the tablet.
i use to wirelessly charge the nexus 10 but id rather stick the pogo in

Car charging (or not in this case) how to monitor?

Little help chaps.
Ok i've just bought this http://www.ebay.co.uk/itm/390566738301
I presumed (not sure if rightly or wrongly) that it would be sufficient to charge my Nexus 4
I'm using an older usb cable I've got to charge it in my car however if i'm using navigation then the battery still decreases.
I've got a funny feeling that the cable is the culprit but i'm not 100% sure.
Is there anyway to monitor how much juice your phone is getting from the charge?
P.S in the battery monitor screen it says AC not USB
Thanks in advance for any help
Stret

Battery monitor widget pro. It monitors the mA that's being used, mV, etc. Maybe the phone is pulling more mA than the charger is supplying.

You need to go into your battery settings/status while your phone is plugged into your car charger.
It will show one of two statuses:
Charging(AC) and Charching(USB)
If it is showing charging(USB), then the phone is detecting a false data connection. This can be solved by taking apart your USB charger and soldering the middle two pins of the USB. These pins are the Data(+) and Data(-) pins. I attached an image of the two Data pins soldered together on the usb charger.
If it is showing Charging(AC), then your USB charger is not pushing enough mA to charge your phone. Most cheap car USB chargers are in the 500 mA to 700 mA range. The stock USB wall charger that comes with your Nexus 4 is 5V 1200mA.

t989BeLikeItDo said:
You need to go into your battery settings/status while your phone is plugged into your car charger.
It will show one of two statuses:
Charging(AC) and Charching(USB)
If it is showing charging(USB), then the phone is detecting a false data connection. This can be solved by taking apart your USB charger and soldering the middle two pins of the USB. These pins are the Data(+) and Data(-) pins. I attached an image of the two Data pins soldered together on the usb charger.
If it is showing Charging(AC), then your USB charger is not pushing enough mA to charge your phone. Most cheap car USB chargers are in the 500 mA to 700 mA range. The stock USB wall charger that comes with your Nexus 4 is 5V 1200mA.
Click to expand...
Click to collapse
Yeah it definitely shows AC was the first thing I checked, so what your saying is that link o posted above is actaully a false claim to how much power it knocks out?
Stret

Stretlow said:
Yeah it definitely shows AC was the first thing I checked, so what your saying is that link o posted above is actaully a false claim to how much power it knocks out?
Stret
Click to expand...
Click to collapse
Hard to say. From my experience, you get what you pay for. A USB charger that cost less than 2 GBP seems unlikely to support the kind of mA throughput that the Nexus 4 requires.
Some ways to check this are to check the power supply and draw through a battery monitoring app, use a different USB cable or the USB cable that came with your Nexus 4, or take apart the USB charger and inspect the hardware to see if it actually is built to support a 2A supply. That last one is a bit of a headache.
Here is an iFixit teardown of a similar USB charger which goes into detail about some of the working parts of a car USB charger.
To quote the final part of the iFixit teardown:
Quite simply, the device is a rebadged 500mA or 750mA USB charger at best. It is NOT 1A capable, despite what the sticker on the body says.
Click to expand...
Click to collapse
Good luck!

t989BeLikeItDo said:
Hard to say. From my experience when it goes about this type of gear is that you get what you pay or. For a USB charger that cost less than 2 GBP it seems unlikely that it would support the kind of mA throughput that the Nexus 4 requires.
Some ways to check this is to check the power supply and draw through a battery monitoring app, use a different USB cable or the USB cable that came with your Nexus 4, or take apart the USB charger and inspect the hardware to see if it actually is built to support a 2A supply. That last one is a bit of a headache.
Here is an iFixit teardown of a similar USB charger which goes into detail about some of the working parts of a car USB charger.
Good luck!
Click to expand...
Click to collapse
Thanks for your help mate

Stretlow said:
Thanks for your help mate
Click to expand...
Click to collapse
No problem! You should try and remember that the Nexus 4 is a pretty sophisticated piece of hardware. I'm not advocating that you go out and spend 20 GBP on equipment, but you don't want to use a cheap generic piece of trash to interface that electrical connection. The build quality of your charger can put your handset at risk to being damaged by electrical shorts and/or heat.
I would liken it to parking your sports car in a cheap parking garage on the bad side of town. Sure, you can do it, but there are risks involved!

1.8 amp car charger

Reading from the AC adapter, this thing can charge at 1.8 amps. I'm doing some research on car chargers that can output 2 amps to the phone via a USB cable, but the trick is getting the phone to pull more than .5 amps from a car accessory outlet. So far I haven't had much luck. There seems to be a lot of info on ipad stuff, but not much in the way of high powered Android devices. So I thought I'd start a thread about compatible car chargers that will allow a full 1.8 amp pull from my car outlet, and see what you guys and gals think and have tried. I've attached a pic of my current setup. It's a Proclip holder on a 2012 Mustang. I've used this same setup for several previous phones (S2 Skyrocket and S3). The holder itself is adjustable to accommodate various phones with cases.

earlthepearl said:
Reading from the AC adapter, this thing can charge at 1.8 amps. I'm doing some research on car chargers that can output 2 amps to the phone via a USB cable, but the trick is getting the phone to pull more than .5 amps from a car accessory outlet. So far I haven't had much luck. There seems to be a lot of info on ipad stuff, but not much in the way of high powered Android devices. So I thought I'd start a thread about compatible car chargers that will allow a full 1.8 amp pull from my car outlet, and see what you guys and gals think and have tried. I've attached a pic of my current setup. It's a Proclip holder on a 2012 Mustang. I've used this same setup for several previous phones (S2 Skyrocket and S3). The holder itself is adjustable to accommodate various phones with cases.
Click to expand...
Click to collapse
Data pins need shorted together, either in the USB cig plug, or some micro USB cables are this way...

Additionally, the USB cable you use needs to have thick enough power wires to support 1.8A charge draw. Many USB cables use 28 AWG wire for the data conductors, and then you get varying degrees of wire gauge for the power conductors depending on manufacturer. Some people use 28 AWG for both, some use 26, and good cables are made with 24 AWG wire. The thicker wire gauge means less resistance so less power is lost and more can be put into the battery. To pull a proper 1.8A the phone probably should have 22AWG power wire in the USB cable really...

earlthepearl said:
Reading from the AC adapter, this thing can charge at 1.8 amps. I'm doing some research on car chargers that can output 2 amps to the phone via a USB cable, but the trick is getting the phone to pull more than .5 amps from a car accessory outlet. So far I haven't had much luck. There seems to be a lot of info on ipad stuff, but not much in the way of high powered Android devices. So I thought I'd start a thread about compatible car chargers that will allow a full 1.8 amp pull from my car outlet, and see what you guys and gals think and have tried. I've attached a pic of my current setup. It's a Proclip holder on a 2012 Mustang. I've used this same setup for several previous phones (S2 Skyrocket and S3). The holder itself is adjustable to accommodate various phones with cases.
Click to expand...
Click to collapse
Hi, not trying to hijack your thread, but can you tell me which case you are using? I like the fact that it has a large lip around the screen.
Thanks

What model pro clip holder is that? I need to replace the one from my nexus. May hold out for the G2 specific one with the cable built in (like the nexus one I have now), but no telling how long that will be.

mikea3000 said:
Hi, not trying to hijack your thread, but can you tell me which case you are using? I like the fact that it has a large lip around the screen.
Click to expand...
Click to collapse
It's the Body Glove case from the AT&T store. It was the only one they had at the time, and I didn't feel like waiting to order one so I overpaid in exchange for some piece of mind.
stetsonaw said:
What model pro clip holder is that? I need to replace the one from my nexus. May hold out for the G2 specific one with the cable built in (like the nexus one I have now), but no telling how long that will be.
Click to expand...
Click to collapse
It's the holder I ordered for my Skyrocket a few years ago. It's a generic adjustable one that fits a lot of different phones with cases. It has fit my SR, GS3, and now my G2, all with cases.

EniGmA1987 said:
Additionally, the USB cable you use needs to have thick enough power wires to support 1.8A charge draw.
Click to expand...
Click to collapse
I have a custom 5 inch up angle micro USB cable I ordered from www.usbfirewire.com. It is a very thick wire, thicker than the charging cable the G2 came with. The one in my pic is probably not thick enough for a 2 amp charge.

Here is an interesting article I came across about car chargers:
The Best USB Car Charger

EniGmA1987 said:
Additionally, the USB cable you use needs to have thick enough power wires to support 1.8A charge draw. Many USB cables use 28 AWG wire for the data conductors, and then you get varying degrees of wire gauge for the power conductors depending on manufacturer. Some people use 28 AWG for both, some use 26, and good cables are made with 24 AWG wire. The thicker wire gauge means less resistance so less power is lost and more can be put into the battery. To pull a proper 1.8A the phone probably should have 22AWG power wire in the USB cable really...
Click to expand...
Click to collapse
Spot on. FWIW, the LG OEM cable is 20AWG on the power wires. This is the only viable explanation as I can't get the OEM wall charger to work with any cables I have sitting around (24AWG at best).

So would we be better off just using the factory charger with a power inverter or is there an actual car charger that will work?

Provided you short the data pins in whatever car charger you buy (if they arent already) and you get a cable with beefy power conductors then you should be able to draw 1.5-1.8A of power through a car charger. You have to make sure the car charger will do what you want though, many 2A chargers also have 2 ports to plug into. What they don't tell you is that each port is limited to 1A and both together will give 2A draw, but not to charge one device. The car itself also may limit power to the charger as well, I know my car specifically says 1.4A max through the cigarette plug. So it is possible to do, it is all just dependent on so many other things that you have to check off the list.

in_dmand said:
So would we be better off just using the factory charger with a power inverter or is there an actual car charger that will work?
Click to expand...
Click to collapse
That's what I'm trying to figure out. I'm tempted to try that Scosche charger, with my thick USB cable. I installed Currentwidget, so I should be ale to see at what rate I'm charging at if I decide to order it.

in_dmand said:
So would we be better off just using the factory charger with a power inverter or is there an actual car charger that will work?
Click to expand...
Click to collapse
I like the Powergen dual 2.1A USB charger I got off of Amazon. Has served me well. But really, anything 1.8A+ that's quality will do. The trick is going to be the USB cable. Still trying to source one from a reputable site, but you want something with 20AWG for the power. If I find something, I'll post it. Thus far I found two sites, kinda obscure, but not thrilled that the shipping alone costs more than the cables which run $6.
---------- Post added at 08:41 PM ---------- Previous post was at 08:39 PM ----------
EniGmA1987 said:
Provided you short the data pins in whatever car charger you buy (if they arent already) and you get a cable with beefy power conductors then you should be able to draw 1.5-1.8A of power through a car charger. You have to make sure the car charger will do what you want though, many 2A chargers also have 2 ports to plug into. What they don't tell you is that each port is limited to 1A and both together will give 2A draw, but not to charge one device. The car itself also may limit power to the charger as well, I know my car specifically says 1.4A max through the cigarette plug. So it is possible to do, it is all just dependent on so many other things that you have to check off the list.
Click to expand...
Click to collapse
I suspect the phone can detect the charger capacity because my OEM LG cable works on both the Apple and Non-Apple ports on the Powergen charger. Since that's the case, the phone doesn't seem to care if the data pins are shorted or not. And the Powergen is advertised as 4.2A total, so 2.1A per port.

kyler13 said:
I like the Powergen dual 2.1A USB charger I got off of Amazon. Has served me well. But really, anything 1.8A+ that's quality will do. The trick is going to be the USB cable. Still trying to source one from a reputable site, but you want something with 20AWG for the power. If I find something, I'll post it. Thus far I found two sites, kinda obscure, but not thrilled that the shipping alone costs more than the cables which run $6.
Click to expand...
Click to collapse
Something worth considering is looking at charging cables labeled for tablets. They usually charge in this amperage range. I plugged my g2 into my kindle fire HD charger (1.8A) and didn't get any slow charge warnings.

Geekybiker said:
Something worth considering is looking at charging cables labeled for tablets. They usually charge in this amperage range. I plugged my g2 into my kindle fire HD charger (1.8A) and didn't get any slow charge warnings.
Click to expand...
Click to collapse
Doesn't that come with the same Amazon branded usb cable you can get by itself? Take a look on the cable. A lot of times they label the wire gauge.
Sent from my VS980 4G using Tapatalk 4

my amazon branded micro usb cables are 28awg and they still allow quick charge with oem wall charger.

The charging issues associated with this phone has been a huge PITA. I've been carrying my stock cable around just so I can charge my phone!!! Subscribed so I can maybe help out with some info...

bova80 said:
my amazon branded micro usb cables are 28awg and they still allow quick charge with oem wall charger.
Click to expand...
Click to collapse
Are you certain that's not just the data side that is 28awg? Very surprised you can pull 1.8A at 28awg.
Sent from my VS980 4G using Tapatalk 4

kyler13 said:
Doesn't that come with the same Amazon branded usb cable you can get by itself? Take a look on the cable. A lot of times they label the wire gauge.
Sent from my VS980 4G using Tapatalk 4
Click to expand...
Click to collapse
They are unmarked.

Qi charging problems

I ordered the official Samsung wireless cover from Amazon, slapped it on, and then put my Otterbox Commuter series over it - so far so good, everything fits reasonably well.
I go to put my S5 on a wireless charger and it charges. Then stops charging. Then starts charging again. Then stops again. Over and over it repeats this.
I get to thinking the phone is just too far away, so I take off the hardshell of the Otterbox Commuter. Same thing happens again. So I take off the soft shell - now I'm down to just the naked phone, and it's still charging on and off.
I'm using the blackberry folding blade wires, and the chargers found here: http://forum.xda-developers.com/goo...udget-wireless-charger-showdown-5-qi-t2676249
Specifically, the tilted charger and rectangle with LED lights. Both are giving me the exact same on & off problem.
So does anyone know how to fix this? Is it the chargers or something I'm doing? Are the chargers just not generating a strong enough field (if so, which charger can I get that will generate a better field?)
Thanks for any help
EDIT: Clarified that wireless cover is official Samsung

xmacro said:
I ordered the wireless cover from Amazon, slapped it on, and then put my Otterbox Commuter series over it - so far so good, everything fits reasonably well.
I go to put my S5 on a wireless charger and it charges. Then stops charging. Then starts charging again. Then stops again. Over and over it repeats this.
I get to thinking the phone is just too far away, so I take off the hardshell of the Otterbox Commuter. Same thing happens again. So I take off the soft shell - now I'm down to just the naked phone, and it's still charging on and off.
I'm using the blackberry folding blade wires, and the chargers found here: http://forum.xda-developers.com/goo...udget-wireless-charger-showdown-5-qi-t2676249
Specifically, the tilted charger and rectangle with LED lights. Both are giving me the exact same on & off problem.
So does anyone know how to fix this? Is it the chargers or something I'm doing? Are the chargers just not generating a strong enough field (if so, which charger can I get that will generate a better field?)
Thanks for any help
Click to expand...
Click to collapse
I had the same issue with a cheap receiver I bought off ebay. The receiver was junk. I took it out of the phone and dropped it on the mat and used a multimeter to check my voltages and never got consistent readings. Tried again with the same chinese mat and the official back and no issues at all.

Kite09 said:
I had the same issue with a cheap receiver I bought off ebay. The receiver was junk. I took it out of the phone and dropped it on the mat and used a multimeter to check my voltages and never got consistent readings. Tried again with the same chinese mat and the official back and no issues at all.
Click to expand...
Click to collapse
Ah, sorry, should have clarified - I'm using the (allegedly) official Samsung wireless cover, the part that replaces the entire back

xmacro said:
Ah, sorry, should have clarified - I'm using the (allegedly) official Samsung wireless cover, the part that replaces the entire back
Click to expand...
Click to collapse
I am having similar issues using a Palm wireless charger I custom made. I believe the issue is the connection from the cover to the pins on the device next to the battery. I am going to try adjusting it. Also, putting the phone in power saving mode before wireless charging seems to help. Think it may have to do with the wireless charging coil not providing enough amps for the phone to keep up. Trying a different cable/wall charger may help.

xmacro said:
Ah, sorry, should have clarified - I'm using the (allegedly) official Samsung wireless cover, the part that replaces the entire back
Click to expand...
Click to collapse
It could be the output isn't high enough. For the official mat you need to have a 3 amp charger for it to work. And if the output is too low, the phone may be getting confused because it is detecting a current, but not enough of one for it to be registering that it is charging. I have a car charger that has a 1 amp and a 2 amp setting, and when I try it on the 1 amp setting I get the same issue where it connects and disconnects. 2 amp and I get 0 issues.

I have a similar issue. I'm using the official Samsung S-View Wireless Charging Cover with the Nexus 5 wireless Charger. I get nothing when I put them together. I believe the output from the charger is around 2 amps and it works perfectly with my Nexus 5 (surprise, surprise...) Not sure why I don't get any response whatsoever...

Kite09 said:
It could be the output isn't high enough. For the official mat you need to have a 3 amp charger for it to work. And if the output is too low, the phone may be getting confused because it is detecting a current, but not enough of one for it to be registering that it is charging. I have a car charger that has a 1 amp and a 2 amp setting, and when I try it on the 1 amp setting I get the same issue where it connects and disconnects. 2 amp and I get 0 issues.
Click to expand...
Click to collapse
I'm using a blackberry folding blade charger, the stated output is 1.8 amps, and my Samsung charger that came with the phone is 2.0 amps; both give me the on/off problem. Is 3 amps really the key? Where do you find one?

xmacro said:
I'm using a blackberry folding blade charger, the stated output is 1.8 amps, and my Samsung charger that came with the phone is 2.0 amps; both give me the on/off problem. Is 3 amps really the key? Where do you find one?
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Sorry meant to say 2 amp. But you may want to test your mat and receiver and see if it really putting out the 1 amp the other thread said it was supposed to. If you are getting an output of less than 1 amp that the other thread says it should be then that is probably your issue. Unfortunately I'm not able to measure the outputs on either of my mats to give you an idea until later this evening when I get out of work.

Kite09 said:
Sorry meant to say 2 amp. But you may want to test your mat and receiver and see if it really putting out the 1 amp the other thread said it was supposed to. If you are getting an output of less than 1 amp that the other thread says it should be then that is probably your issue. Unfortunately I'm not able to measure the outputs on either of my mats to give you an idea until later this evening when I get out of work.
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I think you may be right; it may well be the mats I have are just junk, both of them, unfortunately.
I opened up the back of the phone, and brushed off the wireless charging prongs, just to make sure they weren't dirty. Put cover back on, put otterbox commuter case back on.
Put it on the wireless charger, it cycles on/off again and again, about once per second. Take off the hard shell, leaving just the soft shell, and it cycles on/off about once every five seconds - that is, the interval actually got longer. Take off the soft shell, down to a naked phone, and works after cycling on/off about 5 times, then it settles down and stops cycling.
On another charger, the tilted qi charger, it'll charge if the phone is naked, but if I put even the soft shell of the Otterbox Commuter on it, it'll cycle a few times then just not charge at all.
I'm not sure this is a connection problem with the prongs, or a problem with the wire/charger. I think it has something to do with the field that the qi charger is generating. Since I don't know jack about the qi standard, can anyone tell me if all qi fields are equal? That is, do higher quality qi chargers produce a larger or strong field than cheap units?
Like I said in the OP, these are all very cheap chargers, $15 at most, and I'm wondering if that may be the cause.

xmacro said:
I'm using a blackberry folding blade charger, the stated output is 1.8 amps, and my Samsung charger that came with the phone is 2.0 amps; both give me the on/off problem. Is 3 amps really the key? Where do you find one?
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I use the 2A charger that came with the phone with the CHOETECH pads. The insert is the CHOETECH mat inside the cover. The pad is rated 2.1A input, 1A output. My phone cycles on-off occasionally when the phone hits 100%. I use the Otterbox Defender case.

jetskier said:
I use the 2A charger that came with the phone with the CHOETECH pads. The insert is the CHOETECH mat inside the cover. The pad is rated 2.1A input, 1A output. My phone cycles on-off occasionally when the phone hits 100%. I use the Otterbox Defender case.
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Interesting, so could the problem be due to just using a cheap generic? Seems that the cheap ones may be generating a smaller or weaker field?

Just wanted to post an update - bought a more expensive charger, one with 3 coils instead of the 1 that was in my other two - and now it charges fine, right through my Otterbox Commuter case.
So to anyone else having this problem - the field generated doesn't seem to be big enough to penetrate the Otterbox Commuter with just one coil, you need 3 or so.
EDIT: Specifially, it was the Cheotech Qi wireless charger, rectangle with LED

xmacro said:
Just wanted to post an update - bought a more expensive charger, one with 3 coils instead of the 1 that was in my other two - and now it charges fine, right through my Otterbox Commuter case.
So to anyone else having this problem - the field generated doesn't seem to be big enough to penetrate the Otterbox Commuter with just one coil, you need 3 or so.
EDIT: Specifially, it was the Cheotech Qi wireless charger, rectangle with LED
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it's not the problem with the coil, they give out the same current, it's because the angled charger is a cheap and nasty one, and the flat one is just a fake one, the official one cost alot more.
3 coils only give you a wider surface detection, the current is just the same as a single coil or a 7 coils.
The 3 coils charger you have is a rebadge of powerqi T300 which is a highly recommended one.

kms108 said:
it's not the problem with the coil, they give out the same current, it's because the angled charger is a cheap and nasty one, and the flat one is just a fake one, the official one cost alot more.
3 coils only give you a wider surface detection, the current is just the same as a single coil or a 7 coils.
The 3 coils charger you have is a rebadge of powerqi T300 which is a highly recommended one.
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Ya learn something new everyday - thanks for the info