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Sorry if this has been covered elsewhere; I couldn't find anything.
I'm looking into getting some spare chargers for my Tilt. I read at Pocket PC Techs that the device has a distinct "fast charge" mode, that uses a special pinout. Is this true?
If so, does the charger that comes with the Tilt use this fast charge mode? It seems to be just a standard mini-USB charger (data sheet here).
The link to Pocket PC Techs is actually to an adapter that they sell that is suppose to give you a fast charge with any USB charger. I'm wondering under what circumstances I'd have to use this.
Anyone know what the fast charge pinout is, and which third-party chargers use it?
Thanks.
ISTR reading something about pins 4 & 5 being tied together on some chargers -- should be very easy to test this.
I have not tested this but I suspect the pin out is the same as the Hermes:
http://www.tracyandmatt.co.uk/blogs/index.php/2006/09/10/htc_hermes_usb_connector_pin_config
The USB charging is done with different connections and at a different mA rating. The mains charger is 1000mA and is what I would call the normal charging system (but what the site you show, refers to as fast charge - but only by comparison to USB charging) This is just about standard for many sync/charge PDAs and not a special feature of the Kaiser.
Mike
I do notice a huge difference in speed comparing my old razor usb power adapter vs usb cable into my computer vs tilt power adapater so it prolly makes sense
jallenclark said:
I do notice a huge difference in speed comparing my old razor usb power adapter vs usb cable into my computer vs tilt power adapater so it prolly makes sense
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Yep, the Razor adapter only delivers 500mA not 1000mA
Mike
Plus the razor charger does not have the pins 4-5 shorted, this is a HTC tweak that lets the phone know that it's on a charger vs std. USB power and it may in fact charge at a higher rate upon detecting this. I just know that my Hermes occasionally did strange things like turn off BT radio and other odd things when connecting/disconnecting from different chargers. Kaiser seems better at this.
For a couple of weeks now, I have been charging my Kaiser at work by using the adapter that came with my Audiovox SMT5600. It's been working fine. I cannot however determine if this charges any faster or slower than the Kaiser's adapter.
Slow Charging
So that would explain when I use GPS in the car with my old RAZR charger why the battery still drains. Darn, looks like I'll have to buy a new car charger.
USB Charging
are there any issues iwth battery drain or lif when charging with the USB cable connected to a computer?
Thanks,
g
Is there a specific USB charger.
The pin out is the same as the Hermes?
mikechannon said:
I have not tested this but I suspect the pin out is the same as the Hermes:
http://www.tracyandmatt.co.uk/blogs/index.php/2006/09/10/htc_hermes_usb_connector_pin_config....
Mike
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Is that tested by anybody?
Frans. said:
Is that tested by anybody?
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I wouldn't think it would need to be tested. As per this page:
HTC has developed a range of accessories that are compatible across all HTC devices for consumer's ease of use. These include the BH M200 (Bluetooth headset), HS U110 (3.5 mm audio adapter and headset), and the HS S200 (HTC standard stereo wired headset) to enable effective communications on the move.
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If the audio adapter and hard wired headset are compatible across all HTC devices (per HTC themselves), then that confirms that the pinout of the audio side is the same. And it's been mentioned earlier that the data side follows the mini-usb standard, which I can confirm: I'm using the usb cable from my camera to connect my Kaiser to my PC at home, while I use the supplied cable to connect it to my work PC.
dscline said:
I wouldn't think it would need to be tested. As per this page:
If the audio adapter and hard wired headset are compatible across all HTC devices (per HTC themselves), then that confirms that the pinout of the audio side is the same. And it's been mentioned earlier that the data side follows the mini-usb standard, which I can confirm: I'm using the usb cable from my camera to connect my Kaiser to my PC at home, while I use the supplied cable to connect it to my work PC.
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I would like to use my old Himalaya MDA II Hands Free DSP Car Kit for my new Kaiser (as that I only have to buy a passive holder).
I tried to find a ExtUSB 11-lead Pre-wired Connector Plug ....but it is impossible..any suggestions?
It should be something like this one http://www.gomadic.com/comip10leadp.html
Sorry, can't help you there.
enigmaneo said:
So that would explain when I use GPS in the car with my old RAZR charger why the battery still drains. Darn, looks like I'll have to buy a new car charger.
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I am experiencing a similar issue with an USB/car adapter and the USB cable that came with the Tilt.
Ran Google Maps yesterday with GPS on and when I got home my phone was almost empty. It was charging the whole time in the car though.
Does this mean I should look for another USB cable that is shorting those pins?
What about these adapters that plug into the phone and allow you to connect a USB cable for charging and a 3.5mm audio plug?
http://cgi.ebay.com/HTC-3in1-USB-3-...ryZ15040QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
coolVariable said:
I am experiencing a similar issue with an USB/car adapter and the USB cable that came with the Tilt.
Ran Google Maps yesterday with GPS on and when I got home my phone was almost empty. It was charging the whole time in the car though.
Does this mean I should look for another USB cable that is shorting those pins?
What about these adapters that plug into the phone and allow you to connect a USB cable for charging and a 3.5mm audio plug?
http://cgi.ebay.com/HTC-3in1-USB-3-...ryZ15040QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
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Click to collapse
Mmm, that is a unique piece!! But the cable seems somewhat short.
I think at the end..I am going to combine following pieces to make the final connection to my old handsfree carkit.. (I hate soldering)
http://i.expansys.com/i/b/b139762.jpg
http://www.allekabels.nl/Kroonsteentjes/35/3249/Kroonsteen.html
http://www.allekabels.nl/Monitor-Kabels/19/1342/Monitor-Kabel.html
Any problems with me using my old Razr car charger on my Kaiser? Typically I charge mine every night with the standard charger but in case of emergency I'd like to use my Razr car charger
Thanks
In answer to the original question, yes, pins 4 & 5 are shorted on the OEM charger that ships with the Tilts, thus enabling it to fast-charge the phone at currents greater than 500ma.
Hopefully this helps,
--W5i2
I came across this hub:
http://www.monoprice.com/products/p...d=1030702&p_id=9955&seq=1&format=1#largeimage
Looks pretty nice, all USB 3.0 ports, capable of supplying a 900ma of power to each port. Good for all sorts of things, not just a tablet being connected to the computer.
What I was wondering about this is would it be possible to open it up and short the data pins so that it is only capable of being a charging device? If so, it probably wouldnt even need a connection to a PC, just need to be plugged into the power adapter. I am wondering on this because if possible, that would mean when only using 1 port it (theoretically) would be capable of sending 3.8A out to the one device if the device tried to pull that much. Since the tablet would see the shorted connection it should at least try to pull 2A. Anyway, I just thought it would be a fun project to try and modify in this way. I will probably get it soon and attempt this myself, and might even look into beefing up the internal power circuit area to make sure it can safely send 3+ amps out one port if asked to. It would be nice to use this in conjunction with a pogo connector and finally be able to charge faster than the tablet drains while gaming.
EniGmA1987 said:
... Looks pretty nice, all USB 3.0 ports, ...
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Nexus 10 USB specs "microUSB v2.0"
http://www.gsmarena.com/samsung_google_nexus_10_p8110-5084.php
Would you get value from USB 3.0 ports with a USB v2.0 interface?
To get the full USB 3.0 power of 900mA, the device has to be configured as a USB3.0 device. The hardware developer USB 3.0 command verifier tool is separate from the USB 2.0 one
I thought we had also verified the USB connector and the POGO connector are mutually exclusive in power terms, even if the charging circuit inside the Nexus 10 could be modified to accept more than 2.5A.
skally said:
To get the full USB 3.0 power of 900mA, the device has to be configured as a USB3.0 device. The hardware developer USB 3.0 command verifier tool is separate from the USB 2.0 one
I thought we had also verified the USB connector and the POGO connector are mutually exclusive in power terms, even if the charging circuit inside the Nexus 10 could be modified to accept more than 2.5A.
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Sorry, I dont scour the threads in accessories every day so thats news to me. Besides, I dont even know what "mutually exclusive" is supposed to mean in relation to this. If the pogo connector has a USB end and draws 2A from the power adapter, why wouldnt it be able to draw 2A from any source capable of putting out that much power? Your trying to tell me that the pogo connector somehow signals it is a USB2.0 device? If thats the case it wouldnt be able to draw more than the 500mA. The regular power adapter has a USB output connector after all and it can send 2A just fine. This hub has its own power adapter and doesnt try to draw the full 3.8A through a computer connection. What is the difference between the power adapter that comes with the tablet and a hub that has its own PSU to output that much and more power?
and yes I know it wouldnt transfer at 3.0 data speeds since the tablet has a 2.0 port, but I wouldn't be using the USB port on the tablet. But why would the USB somehow signal that it will only send 500mA through the pogo connector?
EniGmA1987 said:
Sorry, I dont scour the threads in accessories every day so thats news to me. Besides, I dont even know what "mutually exclusive" is supposed to mean in relation to this.
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Mutually exclusive: charge from POGO or USB, but not both at the same time
EniGmA1987 said:
If the pogo connector has a USB end and draws 2A from the power adapter, why wouldnt it be able to draw 2A from any source capable of putting out that much power? Your trying to tell me that the pogo connector somehow signals it is a USB2.0 device? If thats the case it wouldnt be able to draw more than the 500mA. The regular power adapter has a USB output connector after all and it can send 2A just fine. This hub has its own power adapter and doesnt try to draw the full 3.8A through a computer connection. What is the difference between the power adapter that comes with the tablet and a hub that has its own PSU to output that much and more power?
and yes I know it wouldnt transfer at 3.0 data speeds since the tablet has a 2.0 port, but I wouldn't be using the USB port on the tablet. But why would the USB somehow signal that it will only send 500mA through the pogo connector?
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The POGO connector, although it connects to a USB port, is not bound by the USB specification for how much it can draw. USB chargers are available that can deliver up to 3A, but it's up to the device to request this much power.
The specifications for USB 2.0 of 500mA (and 900mA for USB 3.0) are for a power and data connection, but their is an added specification for power only of 1.8A (and 5A for USB 3.0). a hub will generally adhere to the power and data specification, while the USB PSU has no data functionality (this is determined by their being a short circuit on the D+/D- USB pair).
The reason a USB 2.0 device will not draw 900mA from a USB 3.0 port, is because it's the device that negotiates the connection, and as a USB 2.0 device, it will only request the 500mA maximum from the USB 2.0 specification.
Try to think of it this way: an incandescent light bulb will not be any brighter if you increase the power source current.
Ok, but you just said everything I was talking about. So when I modify the hub to get rid of the data connection, and not even connect it to a computer and just have its power supply connected, how would that be different than simply a normal charger? The tablet would be charging through its pogo connector, and it simply plugs into the hub with a 3.8A power supply. So it wouldnt have anything to do with any USB limits then right? Cause the hub is USB3.0 ports capable so it is not like a USB 2.0 hub that wouldnt have the proper internal circuitry to push the 3.8A I will be trying to draw.
EniGmA1987 said:
Ok, but you just said everything I was talking about. So when I modify the hub to get rid of the data connection, and not even connect it to a computer and just have its power supply connected, how would that be different than simply a normal charger? The tablet would be charging through its pogo connector, and it simply plugs into the hub with a 3.8A power supply. So it wouldnt have anything to do with any USB limits then right? Cause the hub is USB3.0 ports capable so it is not like a USB 2.0 hub that wouldnt have the proper internal circuitry to push the 3.8A I will be trying to draw.
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If you short the D+/D- pins, you can then use the hub as a standard charger PSU, capable of delivering 3.8A.
The issue is that current gets pulled, not pushed. It doesn't matter how many Amps you provide, the Nexus 10 charging circuit is only capable of pulling a maximum of 2.5A. (datasheet for the charge circuit can be found here).
From earlier posts (in one of the POGO threads, I think), there were found to be kernel limits restricting the SMB347 charging to 2A.
I am thinking of getting this tab to replace my acer a510.
Just wondering i think i read you can only charge using acer special cable??
Does this tablet have a usb/micro usb that can trickle charge while screen is off/asleep
example my a510 can trickle charge slowly if i hook up a usb to it, but only when the screen is off.
Acer use their own special usb plug to charge normally.
I want to use this for long traveling etc and only want to use a micro or usb from the car to get some juice into it.
I don't know. On the TF700 it was possible but on the TF701 I don't know but also didn't try it.
But I think when connecting the charging cable only to the tablet it will charge with any 5V usb charger but just very slow.
Page 17 of the manual.
http://dlcdnet.asus.com/pub/ASUS/EeePAD/TF701T/e8803_tf701t_em_v2_for_web_only.pdf
You need the special cable to charge, but you can use it to trickle charge from a PC or (presumably) a car USB charger with the screen off. Fast charging requires using the special cable with the Asus mains adapter.
pelago said:
Fast charging requires using the special cable with the Asus mains adapter.
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That is because the AC plug of the TF701 charges either with 15V/1,2Amps or 5V/2Amps, while a normal USB 2.0 hub is limited to 0,5Amps (USB 3.0 to 0,8Amps). If you have a vehicle charger with USB slot the charging speed depends on the max. current it can supply .
And also: there is no micro usb slot on the tablet or the dock.
btw: What Acer did really sucks,because they just switched + with Data+ and GND with DATA-GND from the USB pinning, so you _need_ the original Acer charging cable. (My brother has the A511,where i already repaired the cable once due to lead fracture)
Lamensis said:
That is because the AC plug of the TF701 charges either with 15V/1,2Amps or 5V/2Amps, while a normal USB 2.0 hub is limited to 0,5Amps (USB 3.0 to 0,8Amps). If you have a vehicle charger with USB slot the charging speed depends on the max. current it can supply .
And also: there is no micro usb slot on the tablet or the dock.
btw: What Acer did really sucks,because they just switched + with Data+ and GND with DATA-GND from the USB pinning, so you _need_ the original Acer charging cable. (My brother has the A511,where i already repaired the cable once due to lead fracture)
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thanks everyone.
does anyone know whay the 64gb seems unavailable in japan? is this the same in other countries?
malos1984 said:
thanks everyone.
does anyone know whay the 64gb seems unavailable in japan? is this the same in other countries?
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Dont know why, but on amazon.de and amazon.com there is also no 64GB Version available.
Lamensis said:
Dont know why, but on amazon.de and amazon.com there is also no 64GB Version available.
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In Holland it is not even in their program.
Hi all,
I was wondering if anyone knew of a USB Y cable (with two male usb plugs converging into one female usb port) that could allow quick charge and data transfer so it could be used with Android auto? Both male usb plugs would need to be able to transfer data into the female usb port in order for this to work.
Sent from my XT1572 using Tapatalk
I guess this wouldn't work and might also damage the head unit, but I'm no engineer.
If I were adventurous enough to risk frying my head unit and/or phone, I would follow this
http://www.instructables.com/id/Add...-hub/step3/Cut-the-VCC-wire-of-the-USB-cable/
and connect the output of the quick charge car adapter instead of the external charger.
Then would cut the Vcc wire directed to the head unit.
I don't know if the main hub cable (the one which normally goes to the PC) has to go to the phone or the head unit: who's the host in Android Auto? I'm inclined to think it's the head unit, since the phone connects in mtp mode. So my first guess is main hub cable to head unit, quick charge adapter connected like in the article, then big usb to micro usb cable to phone.
Maybe voltage higher than 5V would fry the hub, and maybe Android Auto connection is so picky (and it's picky, you know) that the hub circuitry wouldn't allow it. Who knows.
Again I'm no engineer and I'm scared to try
But I would buy a safe device tested for this use case, 10/10 :laugh:
Sent from my Galaxy Note 4 using XDA Labs
Use a usb y, but don't short the data pins to send it to high charge/current mode. You won't necessarily hurt the hu but you'll never connect to AA, the phone must detect the shorted pins to enter high charge mode. Which means the phone can't talk on the data wires. I find a 2a charger running at 1a plus the hu's usb keeps just ahead of the power usage.
Sent from my SM-T520 using Tapatalk
glowsti047 said:
Hi all,
I was wondering if anyone knew of a USB Y cable (with two male usb plugs converging into one female usb port) that could allow quick charge and data transfer so it could be used with Android auto? Both male usb plugs would need to be able to transfer data into the female usb port in order for this to work.
Sent from my XT1572 using Tapatalk
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Click to collapse
Unfortunately, you can't have quick charge (2.0) and data transfer at the same time (at least with my Galaxy note 4). On a standard USB cable, you have 4 wires, two for data, two for power. On my GN4, the data pair communicate with the quick charger (I'm not sure exactly what the communication is, I remember reading somewhere it used the data pairs to communicate voltage, etc...).
Now, what I did do, was make my own data cable using 2 male type A adapters and connecting it all up to a a male microUSB end(Data pair is only connected to 1 of the type A male ends, I can't remember if I wired up the power in parallel). My AA head unit puts out less amps than my car charger, so even though I'm not getting quick charge speeds, I'm getting a bit more amps to charge with. So, one male end goes to my charger, one end goes to my head unit. I've been using it like this for over a year with no issues.
How much better is it than charging while connected to the AA head unit? Not sure. I'd rather have more amps than not enough.
Just buy a y. Cheaper and safer than self making.
Sent from my SM-T520 using Tapatalk
Nova5 said:
Just buy a y. Cheaper and safer than self making.
Sent from my SM-T520 using Tapatalk
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Do you have a link? Can't seem to find anything that I think would work.
Sent from my SM-N910P using Tapatalk
Something like this: https://www.amazon.co.uk/Enhancer-Female-Data-Charge-Charge-Extension/dp/B00NIGO4NM
Sent from my Nexus 6P using XDA-Developers mobile app
Hi,
I want to clarify some aspects:
1) Qualcomm's Quick Charge doesn't work when the USB is in use for data.
2) Quick Charge requires a certified adapter (as it's an active function).
3) USB power can charge the device, however very slow... in fact with AA the device consumes battery when running.
So, my question is:
- Increasing the USB power current with an Y cable the device can be charged more quickly?
- And if this is true: the Y cable needs to block the current from the dta USB port of the car?
I like to comment these topics.
Whenever I connect my Phone to my Laptop(Matebook X Pro), it quick charges my phone. (connection via usb c to usb c)
Is there a way I can stop that from happening and my phone leeching the battery from laptop so fast? OR stop charging it all together
Because usually I only connect my phone to laptop for roms and rooting and today for Android Q. I would charge my phone before doing these things hence I don't need my phone to suck out from laptop during this. I wonder if there is a way to reduce how much power the laptop is outputting. or turn it off all together
Besides, I have a powerbank for both my laptop and phone so if I am out and about, I'd charge the phone from the battery, it's less efficient to send it from battery to laptop to phone.
You'll probably need a custom kernel with special settings for that, as they usually try to speedup the charging instead, but I recall some bugged kernel/ROM versions (for another device that was; the Nexus 6P) which prevented fast-charging when not using an official QC adapter (like connecting it to the charge USB-port of your laptop; and that kinda sounds like what you're after). Many modern laptops have special charger-ports, sometimes even with QC support, so did you try another USB-port to see if perhaps charges slower ?
SKiLLa XP said:
You'll probably need a custom kernel with special settings for that, as they usually try to speedup the charging instead, but I recall some bugged kernel/ROM versions (for another device that was; the Nexus 6P) which prevented fast-charging when not using an official QC adapter (like connecting it to the charge USB-port of your laptop; and that kinda sounds like what you're after). Many modern laptops have special charger-ports, sometimes even with QC support, so did you try another USB-port to see if perhaps charges slower ?
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You see, when I'm out and about I only carry usb c to USB c cable so I can't check other ports. Both of the USB C ports are USB PD :/
Sent from my Xiaomi MI 9 using XDA Labs
Use a cheap legacy micro usb cable plus type c adapter. Since its hard to find bad quality usb c cable. It wont pass high current to your phone. Bad quality cable usually have very thin wire..