I figured out the update process and now my device has a new BIOS dated 24/07/2024.
I followed all your recommendations: cleaned the RAM contacts, did Memtest (more than 5 hours, everything is OK), updated the PC BIOS to the recommended one! Unfortunately, this did not solve the problem with the cyclic reboot! Apparently the SSD my SER7 PC has failed.
https://mega.nz/file/vJB1HBSK#4ZNfCAv350uz-k6jtjtDCoixzYI1LXpyCPHUeupFt0g
I am attaching a video with the problem after all the manipulations:
https://mega.nz/file/eQRSFJ5J#tjan1PFR6CuMwzdYWWS9a6TWGJLY4czBG1-lUscDVEQ