Chosen Solution
TL;DR Water spilled across upper right side of laptop, only issue is WiFi/Bluetooth connectivity with a “hardware not installed” notice. ( Emphasis on that I am a college student in quarantine and this is the only computer at home lol) I just knocked over a small cup of water which spilled onto the upper right side of my laptop. I had a separate (non-Apple related) charger plugged into the USB port on that side as well. Immediately I forced quit on all apps open and shut it down. Following a bit of towel drying, I turned my laptop back on to see what was up. Fortunately, everything seemed to work! No display, keyboard, or trackpad damage; battery charged fine; and my ‘open at login’ apps, like Spotify, loaded and logged in as usual. I was able to access Google through Safari, and I went as far as typing a bit into the search bar just to ensure it pulled something up - which it did. I closed all apps following this and went back to towel drying. About 10 minutes later I noticed that my WiFi icon showed no WiFi/WiFi off (that hollow baseball field looking icon lol.) I restarted the laptop. Then it returned with a “no hardware installed” notice under the WiFi icon, which was now grey with an X. I’ve tried: Resetting the NVRAM and SMC Looking up the ‘ls -l /etc/sysctl.conf’ file in terminal, do not have it Safe mode Single user mode, sbin/fsck -fy And making the WiFi inactive to active again in the network settings If you have any advice on how to fix it if possible, what my options are, etc. I would be very thankful! All of my classes have been moved online, limited places are open right now due to quarantine, and this is the only computer in the house.
Sounds like your MacBook Pro 13" Retina (Early 2015) Right I/O Board, following this guide MacBook Pro 13" Retina Display Early 2015 I/O Board Replacement got the worse of it. You could try cleaning it or just replace it and the MacBook Pro 13" Retina (Late 2013-Early 2015) I/O Board Data Cable
