iMac2017T2Chipfailure wrote:
So I just recently tried to update my Mac from Mac os Monterey to Sonoma everything was going fine until it was installing and my screen shut off and didn't reboot, after that I got a bit concerned waited a bit maybe for it to finish but nothing ended up happening, I unplugged my iMac from the wall and plugged it back in pressed the power button and nothing happened I heard the fans come on but no startup sound and the screen was black,
Sounds like a hardware issue of some sort. My bet is on a bad Logic Board. I have seen the Logic Boards on these 2017-2020 Intel iMacs fail more often than any older iMac models going back to 2007. The symptoms match.
later on come to find out this has something to do with the t2 chip
FYI, I do not believe the iMac 2019 model uses a T2 chip...confirmed by both MacTracker and EveryMac.com. All of the other 2019 Macs do have a T2 chip, but for some reason the 2019 iMac does not.
now all my data is gone as well, very upset to have lost everything
You did not have to do the complete wipe even if you could not access the data on the internal drive(s). You could have looked contacted an Apple repair/support tech to see what could be done to recover the data or look into a professional data recovery service.
Your data was always at risk if you don't have any backups. It was just a matter of when & how much of your data you would end up losing. There are a lot more new ways to permanently lose access to the data on the internal drive of the recent Macs due to all of the hardware, software, and security changes. Since Apple provides Time Machine backup software with macOS, there is no reason for anyone not to have a good backup. Unfortunately this is usually a lesson learned the hard way.
and now have a non functioning iMac, If anyone knows a solution, please help.
You most likely have a hardware issue of some sort. My guess is a bad Logic Board.
You can try running the Apple Diagnostics to see if any hardware issues are detected. The only useful diagnostic is one which reports a problem. You can also have Apple or an Apple Authorized Service Provider examine the computer to confirm.
Personally I don't recommend repairing any of the Intel Macs with USB-C ports for multiple reasons. The money spent on repairs is better spent on a new computer.
