IMAC 20  INCH INTEL WHITE USB PORTS DONT WORK

i have a 20 inch intel imac white and my usb ports dont detect any of any external devices such hard drive and camera or usb flash ,but my keyboard and mouse are detected and work .I already did a smc reset and pram and they show up under the apple profiler and i created a new user and tried it from there still nothing .Will a power usb hub fix this issue ,i think its a low voltage issue any suggestions.I have tried all the ports as well all the same
Message was edited by: s281er238

Hi Enialreve,
Thanks for posting and welcome to the Lenovo Community,
I’d like to help you with the issue that you’re facing and I need to confirm you that all the steps that you’ve done is absolutely correct,
And as I can see that you’ve followed all the steps that we can do inside the operating system,
And I’d like to advise you that we can try to perform a recovery to get the machine back to the initial state and am sorry to ask you to take a backup from the data you need as the recovery will get the machine back as a new machine and all the Data on C: partition will be lost,
Kindly turn off the machine and connect the charger and the battery and then press on the One key recovery button which is the small one with the curve arrow,
And then the system will be booting to the recovery,
For more information about the recovery check the below link:
One Key Recovery
Hope the information helps. Let us know.
Regards
Soha
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