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So this may be a silly question, but I've just received the T-Mobile MDA (HTC Wizard) second-hand and without a charger.
The Mini USB port on the bottom allows ActiveSync and charging from my notebook's USB port, but when I try to charge using an AC-to-USB adapter it doesn't work... I've tried two different Motorola phone chargers and a generic one that came with my Jawbone that has a USB female connector on the adapter and you supply your own USB cable. I've used the same cable I was using when attaching to the PC, but no luck.
Interestingly enough, I did get it to charge with the same USB cable once at an airport by plugging it into the Southwest Airlines chairs with the USB power plugs...
So does anyone know? Does this phone require a special sort of charger?
you need a charger that is rated 1.0Amps.
usb is normally 500mAmps, not enough to charge your phone.
Probably a daft question!
Is there any reason I cannot use a "stock" non HTC usb cable for syncing / charging. Is the HTC cable any different to any others e.g. Nokia?
Surely one cable is the same as another!?!
You can use ANY USB/microUSB Data/Charge Cable ;-)
I also do so :-D
no, charging doesn't really works, not for most cables. Unless it is explicitly marked for HD2 or iPhone. It seems they follow a new specifications. Older cables do not carry as much current. With connected to PC via a third party cable, my HD2 pops up a screen saying that the charging current is insufficient.
You can use any USB 2.0 A Male to Micro 5pin Male. Basically the typical USB to micro USB cable. I'm using a Blackberry micro usb cable (plugged into laptop) to charge my HD2 at work.
Usually sells for $2-3, or less, for 1-2 feet cable. Overpriced if you pay more. I bought the BB cable from Amazon, though I usually buy cables from monoprice.com.
i have a cable that comes with the car charger that charges the device when connected to the pc but cannot be used to sync files. when connected through this cable, the pc does not recognize it at all as an external device as it recognizes a dvd, cd, etc. in its driver.
I'm using a Blackberry cable in the office and works like a charm; I have the original at Home.
I setup a self-powered USB2.0 hub which has a 2.5AMP power adapter. I used a dual male (split) to single female USB cable and plugged the TAB USB cable into that.
This same dual cable & hub works fine to power an external USB hard-drive which won't work with just a single cable for power. I would think with 2+ AMPS it should charge the TAB "normally" (with no "x" on the battery indicator) but it does not, the "x" remains. All other devices have been removed from the hub.
Anyone else been able to get a normal charge off a PC or USB hub with a split cable? It's such a pain to have to put the TAB on the wall charger then switch it back to the PC.
when the screen is off the device charges, despite what the battery display says.
tca120 said:
when the screen is off the device charges, despite what the battery display says.
Click to expand...
Click to collapse
Correction, it trickle charges. Very slowly.
LordLugard said:
Correction, it trickle charges. Very slowly.
Click to expand...
Click to collapse
I understand that but I was under the obviously incorrect impression that if you used a double male USB to single female USB cable you would get a normal charge since there is more power available. Is the charge rate dependent on the TAB seeing power on a specific pin of the cable telling it that a charger is connected and not a cable to the PC? I'm connected to a self-powered hub with a big 2.5amp power supply and nothing else connected to it.
Sent from my Nexus 7 using xda premium
An OTG cable is not for charging/connecting your device to a computer. Instead of usb micro to a male usb, it's micro to female usb, so you can plug in peripherals and flash drives etc. to your device.
Sent from my SGH-I777 using xda premium
When a normal USB is plugged in, the Nexus is in "slave" mode. Receives instructions.
When an OTG cable is plugged it allows it to be in "master" mode. Can give instructions.
Sent from my Nexus 7
Stop... MUFFIN TIME!!!
There are basically 3 types of cables you can plug into the USB port of a Nexus 7:
1. A normal USB-to-microUSB cable, plugged into a computer or a USB charger. Either way it charges, and if it is hooked to a computer the N7 is in Client Mode and you can transfer files as well.
2. High-current chargers (like the one that comes with the Nexus 7). The data lines on these are shorted together; this tells the Nexus to accept higher current on the power lines for faster charging.
3. OTG cables have the normal 4 wires on the USB end - two for power, two for data - but on the microUSB end there is a fifth connection called USBID. Normally (as when using a normal 4-wire USB cable) the USBID pin is floating, i.e. not hooked to anything. On an OTG cable, the USBID pin is connected to the ground wire. This tells the N7 that an OTG device is plugged in, which causes it to do two things: it reverses the current on the power lines - because it needs to power whatever you have plugged into the OTG cable, like a USB card reader or keyboard - and it switches the USB interface from Client Mode (which it uses when it is plugged into a computer, because in that instance the N7 is a peripheral device) to Host Mode (because in that instance the OTG device is the peripheral and the N7 is the 'computer').
There is one other option for charging: the pogo pins on the side. (The 4 pins are 5V, stereo left, stereo right, and ground.) Providing power to the pogo pins (as when it is put in a dock) tells the N7 to accept high current on the pogo pins. Momentarily connecting 5V to the right stereo channel tells the N7 that external speakers are connected and it starts driving audio out the two center pogo pins. When this is happening the charging takes place through the dock, the USB connector can be used with a data cable or an OTG device, but no charging takes place through USB when the dock is connected. (An OTG device is still powered by the N7, but current never goes the other way.)
Mechanio said:
There are basically 3 types of cables you can plug into the USB port of a Nexus 7:
1. A normal USB-to-microUSB cable, plugged into a computer or a USB charger. Either way it charges, and if it is hooked to a computer the N7 is in Client Mode and you can transfer files as well.
2. High-current chargers (like the one that comes with the Nexus 7). The data lines on these are shorted together; this tells the Nexus to accept higher current on the power lines for faster charging.
3. OTG cables have the normal 4 wires on the USB end - two for power, two for data - but on the microUSB end there is a fifth connection called USBID. Normally (as when using a normal 4-wire USB cable) the USBID pin is floating, i.e. not hooked to anything. On an OTG cable, the USBID pin is connected to the ground wire. This tells the N7 that an OTG device is plugged in, which causes it to do two things: it reverses the current on the power lines - because it needs to power whatever you have plugged into the OTG cable, like a USB card reader or keyboard - and it switches the USB interface from Client Mode (which it uses when it is plugged into a computer, because in that instance the N7 is a peripheral device) to Host Mode (because in that instance the OTG device is the peripheral and the N7 is the 'computer').
There is one other option for charging: the pogo pins on the side. (The 4 pins are 5V, stereo left, stereo right, and ground.) Providing power to the pogo pins (as when it is put in a dock) tells the N7 to accept high current on the pogo pins. Momentarily connecting 5V to the right stereo channel tells the N7 that external speakers are connected and it starts driving audio out the two center pogo pins. When this is happening the charging takes place through the dock, the USB connector can be used with a data cable or an OTG device, but no charging takes place through USB when the dock is connected. (An OTG device is still powered by the N7, but current never goes the other way.)
Click to expand...
Click to collapse
Dont forget a "y cable", which can charge and preform host mode (otg) at the same time, only at a slower charging rate. This is providing you are using a kernel that supports this function. "Otg+host mode charging"
Sent from my Nexus 7 using xda premium
I have an andrid. Stick mx2 imito and I have a powered USB hub but I can't configure how I am meant to to get it to read from the hub. I have 2 ports on the stick, one full sized usb and one mini usb .
And In terms of devices I have my keyboard I want to add
1 external usb hard drive
And if I can get it to work a USB wifi dongle
Huh!
Since there is only one full sized USB port, I would think that is the solution. That's how it runs on mine anyway. Connect all your devices to the powered hub. Should be straight forward
So I would need a usb cable male to make? To connect to the hub. Do they exist ? I will try find the cable .
i cantget it to work
so the large usb port. i need a cable from that to connect to the hub? usb port
but i dont have a usb port with the same end? male to male etc
Get a USB powered hib
wakkaday said:
i cantget it to work
so the large usb port. i need a cable from that to connect to the hub? usb port
but i dont have a usb port with the same end? male to male etc
Click to expand...
Click to collapse
The hub will come with one male USB to connect to the stick.
http://gadgets.softpedia.com/images/news/How-to-Charge-your-USB-Devices-Quick-and-Easy-4.jpg
Make sure to get a powered hub so that all the devices can be supported properly.
gsurath said:
The hub will come with one male USB to connect to the stick.
http://gadgets.softpedia.com/images/news/How-to-Charge-your-USB-Devices-Quick-and-Easy-4.jpg
Make sure to get a powered hub so that all the devices can be supported properly.
Click to expand...
Click to collapse
this was an old hub i had, i dont have that wire. its a mini usb to full usb type connection isn't it?
Plenty of such options available
Here is another on ebay. Just search for powered USB hub and choose one
http://www.ebay.com/itm/10-PORT-USB-2-0-EXTERNAL-HUB-W-POWER-ADAPTER-FOR-PC-MAC-WITH-cable-SILVER-/370772094009?pt=US_USB_Cables_Hubs_Adapters&hash=item5653bd2c39
gsurath said:
Here is another on ebay. Just search for powered USB hub and choose one
http://www.ebay.com/itm/10-PORT-USB-2-0-EXTERNAL-HUB-W-POWER-ADAPTER-FOR-PC-MAC-WITH-cable-SILVER-/370772094009?pt=US_USB_Cables_Hubs_Adapters&hash=item5653bd2c39
Click to expand...
Click to collapse
ok great, so the port next to the power socket, is the cable i need to attach to and from the imito android stick? so that will be the main one and any other usb devices can go on the hub.
m confused on where i need to connect from on the android stick. which has 1 full sized usb, 1 mini usb otg socket and 1 mini usb (power)
It should also be possible to modify a USB hub to back feed power to the HDMI stick.
You would then power the hub with a sufficiently large USB power supply to power both the stick and all of the USB devices. In most cases, a single 2.1 Amp USB "wall wart" would work to power everything, unless you are really running something outrageous.
My NX003 (Same as MX1) can be powered from either the dedicated USB power jack, or the MicroUSB (OTG) connector.
So to build something like this, here is what I would do:
1. Obtain a USB hub I was willing to modify (destroy, as far as any other use is concerned)
2. Disassemble it.
3. Remove the input (Host) cable or connector.
4. Attach a short cable with a MicroUSB plug. Connect all 4 wires correctly.
5. Find "The diode" - Buy "The diode" I mean the one that that allows USB power to flow from the host to the peripherals when used in non-powered mode, but prevents power from flowing upstream to the host when an external power supply is used. (see referenced link).
6. Remove this diode, and replace it with a wire, jumper, or solder bridge.
7. Ensure all power circuity in the hub can handle 2 amps. Add solder to traces, or add jumper wire if needed to beef up current capability.
8. Reassemble, and clearly mark so that this hub is never used with anything else.
If the HDMI stick were powered via a coaxial connection, but is still powered by 5 Volts, I'd add a lead and coaxial plug off of the +5 in the hub. you'll have 2 wires, but it will still work. (Watch polarity.)
I have done this successfully for a prior, similar project. Reference Here: (Scroll to section about power.)
http://linuxslate.com/N770DockingStation.html
So why don't I actually do this to power my NX003? I did it an easier way. I bought a Tronsmart Prometheus. It has 3 full USB ports built-in.
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Linuxslate said:
It should also be possible to modify a USB hub to back feed power to the HDMI stick.
You would then power the hub with a sufficiently large USB power supply to power both the stick and all of the USB devices. In most cases, a single 2.1 Amp USB "wall wart" would work to power everything, unless you are really running something outrageous.
My NX003 (Same as MX1) can be powered from either the dedicated USB power jack, or the MicroUSB (OTG) connector.
So to build something like this, here is what I would do:
1. Obtain a USB hub I was willing to modify (destroy, as far as any other use is concerned)
2. Disassemble it.
3. Remove the input (Host) cable or connector.
4. Attach a short cable with a MicroUSB plug. Connect all 4 wires correctly.
5. Find "The diode" - Buy "The diode" I mean the one that that allows USB power to flow from the host to the peripherals when used in non-powered mode, but prevents power from flowing upstream to the host when an external power supply is used. (see referenced link).
6. Remove this diode, and replace it with a wire, jumper, or solder bridge.
7. Ensure all power circuity in the hub can handle 2 amps. Add solder to traces, or add jumper wire if needed to beef up current capability.
8. Reassemble, and clearly mark so that this hub is never used with anything else.
If the HDMI stick were powered via a coaxial connection, but is still powered by 5 Volts, I'd add a lead and coaxial plug off of the +5 in the hub. you'll have 2 wires, but it will still work. (Watch polarity.)
I have done this successfully for a prior, similar project. Reference Here: (Scroll to section about power.)
http://linuxslate.com/N770DockingStation.html
So why don't I actually do this to power my NX003? I did it an easier way. I bought a Tronsmart Prometheus. It has 3 full USB ports built-in.
-
Click to expand...
Click to collapse
Thank you for the informatiom, but its a bit too technical for what i want... but i appreciate you efforts in writing this.
my stick can also power via both usb ports (mini) i have connected the cable from the stick to the hub which has been powered to the mains and it works, but the problem i have is when i put another usb device in the hub, it doesnt detect it e.g. keyboard wireless and i don't think the device has enough power to run my usb 2.0 portable harddrive (not main powered) - how can i get this to work? i have tried connecting this directly to the stick, but it just makes a beep sound. im guessing its lack of power... and i was hoping a hub would help.
my hub is powered 3.5 or 4 watts i believe...
Strange
Wakkaday,
This is very strange. On my MK802III I connect the powered USB hub (4 ports) to the full USB port.
I connect my bluetooth keyboard, 1 TB HDD and USB ethernet to the hub.
I power my Android stick using the 4rth port in the USB hub.
If I want USB audio, I replace the Ethernet/HDD with a USB audio peripheral.
All my peripherals work right out of the box. The only thing I am considering now is to have a separate power supply to the Android stick so that I can use all 4 ports on my hub.
It seems your device is not supporting the peripherals? Are the working when you connect directly?
gsurath said:
Wakkaday,
This is very strange. On my MK802III I connect the powered USB hub (4 ports) to the full USB port.
I connect my bluetooth keyboard, 1 TB HDD and USB ethernet to the hub.
I power my Android stick using the 4rth port in the USB hub.
If I want USB audio, I replace the Ethernet/HDD with a USB audio peripheral.
All my peripherals work right out of the box. The only thing I am considering now is to have a separate power supply to the Android stick so that I can use all 4 ports on my hub.
It seems your device is not supporting the peripherals? Are the working when you connect directly?
Click to expand...
Click to collapse
I'm also trying to use a powered 4 port usb hub with my android stick, but it doesnot recognises the hub. Do i need to have any usb host drivers or change any setting to get it work? My stick is on Android ICS.. Thanks in advance