How to get blade serial numbers off the R9 status page
Use the .PDF in the attachments if the links are not working.
First, boot the unit into Mx Mode by powering up with a blank USB stick installed (formatted to FAT32)
Next, go to the system status tab
Then select the "Info" LSK, which will take you to the FAN Status.
Select the "Info" LSK one more time to get to the P/N and S/N status page: