Thread: Do they make a Motorola RAZR 5-pin USB 2.0 to mini-USB cable?
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Francis C. Francis C. is offline
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Default Do they make a Motorola RAZR 5-pin USB 2.0 to mini-USB cable?
William Sommerwerck wrote:

I believe the resistor is needed to "clue" the power supply that
something that "wants" to be charged is connected.

I'm confused because I just tested a "normal" cable and this was
my observation:

Motorola RAZR V3 connected to wall-wart USB charger -- fail
Motorola RAZR V3 connected to automotive USB charger -- fail
Motorola RAZR V3 connected directly to Linux PC -- charged!

The weird thing is that I used the same cable for all 3 tests!

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