MacBook Pro A1502 2013-2014 USB ports not detecting drives repair

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Revision as of 18:08, 8 November 2023 by ASRepairs (talk | contribs) (Created page with "{{stub}} {{Repair Guide |Device= |Affects parts= |Needs equipment= |Type= |Difficulty= }} ==Problem description== When the A1502 MacBook Pro is not detecting connected USB devices. thumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it! ==Symptoms== *Unable to detect USB devices. ==Solution== For left port on logic board check for 5 V at L4605. If low or non existent check for PP5V_S4 at pins 2 and 3 of U460...")
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MacBook Pro A1502 2013-2014 USB ports not detecting drives repair
Device
Affects part(s)
Needs equipment
Difficulty
Type


Problem description

When the A1502 MacBook Pro is not detecting connected USB devices.

Example image (Figure 1) -- No image yet. Help expand this page by uploading it!

Symptoms

  • Unable to detect USB devices.

Solution

For left port on logic board check for 5 V at L4605. If low or non existent check for PP5V_S4 at pins 2 and 3 of U4600. If that VIN is OK check for USB_PWR_EN at pin 4. If that is low try removing U4600 and rechecking USB_PWR_EN. If it comes back up to ≈3.3 V then replace U4600 and recheck for 5 V at L4605. This obviously doesn't cover all possible scenarios but it is one.

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