crwdns2933803:02crwdne2933803:0
crwdns2933797:0Axelcrwdnd2933797:0crwdne2933797:0
crwdns2936043:0crwdne2936043:0 crwdns2933505:0crwdne2933505:0 Axel
- crwdns2933769:0crwdne2933769:0
- crwdns2933771:0crwdne2933771:0
- crwdns2933801:0crwdne2933801:0
crwdns2933807:0crwdne2933807:0
| + | [title] Provide port with 5V from external power supply |
|---|---|
| + | [* black] Double check that you have a proper working, good quality desktop power supply. https://en.wikipedia.org/wiki/Power_supply |
| + | [* black] Set it to +5V DC and double and triple check the power and the polarity with a multimeter. |
| + | [* black] Connect ground of the USB port with ground of the external desktop power supply. |
| + | [* black] Maybe you can use just a usb cable but I preferred to use a cable with a device. I used an FTDI breakout board from sparkfun because there the pins are relatively good accessible. |
| + | [* black] Supply the USB device (I suppose on the port that caused the problem) with 5V from the desktop power supply on the 5V pin of the USB plug. |
| + | [* black] The LEDs on the FTDI light up and it is recognized by the Mac. |
| + | [* black] For whatever reason the second USB port got reactivated, too. It works without the need to provide the connected USB device with external power. |