Hope you are doing well !
1-Please try to disconnect from the Power outlet the ICX-7150 and reconnected.
If that does not make any difference we need to perform a software recovery since it can be that the images are corrupted so in basic words the Switch or white box is not able to boot up properly.
2-We need to access (physical) using one of he cable to the ICX-7150C12P mentioned on the below guide :
How to console in the ICX-7150-C12p
Once we are there we can try to boot up the unit using the following commands:
Boot_primary or Boot_secondary
If that step does not work Software recovery needs to be applied
Here is the guide :