USB Charging

This is a discussion on USB Charging within the Motorola Backflip Accessories forums, part of the Motorola Backflip category; From what I can tell, the two data pins (2 & 3) are shorted on the little AC-to-USB adapter cube which came with my Backflip. ...

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Thread: USB Charging

  1. #11
    Member weasel5i2's Avatar
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    From what I can tell, the two data pins (2 & 3) are shorted on the little AC-to-USB adapter cube which came with my Backflip. I took apart my DC car adapter and soldered a bridge across the data pins on the female USB connector, and it puts the phone into Charger Mode (I know this because the phone tells me that "remember to unplug the charger" message when I disconnect it from the car adapter.)

    It should be noted that you must NEVER do this on a PC USB cable to try and hack the Backflip into fast-charging -- PC USB ports, in disassociated mode, are designed to supply a maximum current of 100mA, and in associated mode (upon request by the USB peripheral, and even then only if the Host Controller agrees to the request) it can supply up to 500mA, which still isn't enough to supply the handset in fast charge mode.

    --W5i2

  2. #12
    Android Addict marvin_attdroids's Avatar
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  3. #13
    Junior Member rengreco's Avatar
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    weasel5i2, you are my savior. I have been hitting myself over the head upset that my USB car chargers would not charge my backflip. I am gonna go pop the little sucker open now and bridge these pins.. <3

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