Hi @jp ,
All Indoor APs comes up with Hardware replacement which included R320 as well, so I would recommend you to raise a RTF RMA with https://support.ruckuswireless.com.
RMA team will share the process for RTF RMA(Return to Factory)
Staff Technical Support Engineer
CCNA RnS | CCNA Wireless | RASZA | Meraki CMNO | RACPA