I encountered the same issue as https://community.ruckuswireless.com/t5/RUCKUS-Support-for-Lennar-Homes/ICX7150-C12P-won-t-boot-DRAM-Validate-Shmoo-parameters-stored-in/m-p/76172
The switch condition and situation are completely the same. The physical factory reset doesn't help and the software reset fails because no <boot> cli is shown in the console. The solution from this thread ends at "RMA" but no further information is provided. The "chat" only opens a "case" which quickly closes for the reason of "Effective November’2022, ‘Ruckus Support for Lennar Homes customers will no longer be handled by phone or email."
To prove that I didn't lie, the image of the dead switch is attached to this post. How should I request an RMA? What further information should I provide? Image of the dead Switch