Model A1369, 1.6, 1.7, or 1.8 GHz Processor, 64, 128 or 256GB Flash Storage

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Possible to replace Thunderbolt port?

MacBook Air 13" Mid 2011 running 10.9.1. Thunderbolt monitor working consistently well. But when I use Thunderbolt > VGA cable connections to various monitors/projectors it is unreliable; sometimes signal repeatedly dies, sometimes monitor doesn't detect at all, while other laptops work fine. Have tried different cables. Evidence of slight corrosion in one corner of the port.


  1. Does it make sense that Thunderbolt monitor would work but that there would be issues with Thunderbolt>VGA monitor connections?
  2. Is it possible to replace Thunderbolt port without replacing entire logic board?
  3. Do USB>VGA options work with Macs; if so, do they carry audio?

Many many thanks for any advice.

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First I would check the EFI & Thunderbolt firmware updates Apple has to make sure your system is up to date.


If these don't address your problem you'll likely need to get a new logic board at the connector is soldered on to it - Ouch!

I would also check with a genus at an Apple Store or visit a Apple authorized service center. To check your software setup.

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