cjt2012
Level 1
(4 points)
Q: Wifi: No Hardware Installed
Hello,
I own a mid 2012 Macbook Pro 15" that currently runs OS X El Capitan 10.11.6. I have always used my computer and never had issues with the wifi before until today. I woke my computer up from sleep mode and it said the wifi was off and refused to let me turn it on. So i restarted the computer and then it gave me the following message: "Wifi: No Hardware Installed." So after doing some research, it was recommended to disconnect the battery for 5 seconds, reconnect, and restart. This resulted in the wifi turning on. When i opened the safari browser, the wifi then began to turn off, on, off, on,... continuously. I then restarted and the wifi stayed on and worked. After shutting down the computer and turning on again 10 minutes later, the same message: "Wifi: No Hardware Installed" popped up.
I have no clue what could cause such an issue, and i would like some advice on how to resolve it.
Thanks,
Fellow Mac User
MacBook Pro, OS X El Capitan (10.11.6)
lllaass
Level 10
(188,027 points)
- Try resetting the SMC and NVRAM/PRAM
Intel-based Macs: Resetting the System Management Controller (SMC)
https://support.apple.com/en-us/HT201295
This is what you did by disconnecting battery.
https://support.apple.com/en-us/HT204063
- Try starting in Safe Mode
OS X: What is Safe Boot, Safe Mode?
https://support.apple.com/en-us/HT201262
- Boot to Recovery and repair the startup disk
OS X: About OS X Recovery - Apple Support
https://support.apple.com/en-us/HT201314
- If it is repairable reinstall the OSX
How to reinstall OS X on your Mac - Apple Support
https://support.apple.com/en-us/HT204904
- If you do not have a backup use disk utility to restore the internal disk to an external disk so you can try to recover data.
Then format the startup disk and do a fresh install of OSX
If still problem, make an appointment at the Genius Bar of an Apple store since it appears you have a hardware problem. Could be that the wifi card has to just be reseated in its connector
