Chosen Solution
I purchased my macbook shortly after release. I noticed it flickered from time to time, however it wasn’t known back then that it was caused by interference of the wifi card so it never was resolved when I took it into repair and once it was known, it was out of warranty. However, I have heard that by switching out my wifi card with the card from the 2013 model could fix this problem. Has anyone tried this with any success?
There is a bit of added shielding within the case & lid, the AirPort board in its self won’t alter things. Sadly your procrastination may have killed off the free repair. I would still visit an Apple Store to see if they will still fix it under the extended warranty program it was serviced under.
