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ClockworkMod (CWM) Recovery easy install for RK3066 and RK3188 -- TWRP/CWM Flash-Tool and root for RK3288

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how to connect external hard drive, does it have to be powered? please help
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oliman
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2012/01/11 - 04:25
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Cool

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damo
Kingston upon hull, UK

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2012/01/11 - 08:28
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Yes it would have to be powered

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cirrus
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2012/01/22 - 15:37
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a 3.5 inch external drive needs power, but a 2.5 inch "laptop" HDD does not reqire external power.

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finless
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2012/01/22 - 16:33
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I think it is going to depend on the drive and it's power requirements.  My 2.5 drive requires power on my Arnova 10 G2.

 

Bob


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cirrus
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2012/01/22 - 16:52
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most probably  be down to drives RPM ect , i have 2 and both get power from usb bus only.

apparently they are notebook drives which require less power.  thanks for the info i was under the impression all 2.5 was powered by usb bus. seems it is not the case.

 regards.

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finless
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2012/01/22 - 17:16
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My 2.5 is from a dead laptop but it is a older model.  I put it in a USB case I bought made for 2.5 drives. The case has an optional 5V power jack. It will power by USB on a PC, etc no problem but the Arnova will not power it.  Once I plugged in the 5V wall wrt to it, the Arnova saw it fine after that. So again my point is I think it depends on how power hungry the drive is on USB power alone.

 

Bob

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damo
Kingston upon hull, UK

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2012/01/22 - 19:31
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My two external sata hard drives wont work with the tablet, just get notification
Come up safe to remove usb

One is a WD 1tb external powered, the other is a Sumvision cyclone pocket, un powered

Tried everythingFrown

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gerry

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2012/01/22 - 20:20
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copyed from the arnova site 

USB devices
What USB devices work on the tablet?
Quite a lot of simple USB devices work on Android Tablets via the USB host. Common layout USB keyboards work, most USB mice, USB flash drives even some USB hard drives (as long as they are self powered). For a USB device to work in Android the drivers need to be there, google have added drivers for many devices but not for all. The best way to know if your USB device is compatible with Android is to contact the USB device’s manufacturer. Or simply plug it in and see.

Persistence will pay off ,Trust me !!!

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damo
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2012/01/22 - 21:07
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Surely mass storage is standard regardless of make...

 

The USB mass storage device class, otherwise known as USB MSC or UMS, is a protocol that allows a Universal Serial Bus (USB) device to become accessible to a host computing device, to enable file transfers between the two. To the host device, the USB device appears similar to an external hard drive, enabling drag-and-drop file transfers.

The USB mass storage device class comprises a set of computing communications protocols defined by the USB Implementers Forum that run on the Universal Serial Bus. The standard provides an interface to a variety of storage devices.

An USB flash drive like this one will typically implement the USB mass storage device class.

Some of the devices that are connected to computers via this standard include:

Devices which support this standard are referred to as MSC (Mass Storage Class) devices. While MSC is the official abbreviation, UMS(Universal Mass Storage) has become common in online jargon.

 

Cut from Wikipedia

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cirrus
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2012/01/22 - 21:31
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seems bob was correct, some usb devices can draw power from USB bus whilst others need a lil external boost.

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