blue microphone not working on mac os sierra

#Blue microphone not working on mac os sierra install

I held the Power button, just as the light flashed the long tone came on, the apple logo appeared, after a time the Mac shut down, and started back up, and came up normal. (I was holding my breath) The screen message had stated to restart, hold power button till light flashes or hear long tone.

#Blue microphone not working on mac os sierra install

I used disk utility again, and both drives were recognized, so I exited back to Menu with 4 options, click on the Install, and up came the install firmware update message.!! I clicked on button, and another box opened wanting the administrator pw, I entered, and system shut down as the screen message stated after a short time. The Menu came up where you select the four different options. I restarted the Mac holding down the Command key and the R key, until apple logo appeared. I downloaded High Sierra from the app store. I used Disk utility to erase and format drive. So I installed a spare drive I had into the Mac drive bay. I was still not sure if I fixed the problem. Instead I ejected the USB drive that I used for the install, rebooted the Mac several times to make sure the Mac started as expected. completed the High Sierra install with the SSD drive ( OWC Accelsior S + 1.0TB Extreme Pro 6G Solid-State Drive Bundle.). Step 4 I started in the Mac with the firmware update problem. I downloaded his tool (macOS High Sierra Patcher) onto another mac created the USB you mentioned in previous post. I did finally solve it combining some of your ideas. Erase USB choose GUID partition map with journaled, I still had the same problem with Firmware update, when tried to install onto USB.