[CLOSED]Jailbreak PS3 4.84 OFW CECH 4k

hi guys i have the problem jailbreak my PS3 With HEH i'm trying to install the HFW 4.84.2 but PS3 can't detect the update, i have the 4.84 OFW, any idea how i can do that?, i hope so you can help me T.T

MY PS3 is a SUPER SLIM CECH 4K WITH OFW 4.84

I have 3 different usb with the update formatted in FAT32(LBA) MBR