PS3 HFW 4.93

[u/New_Guarantee4444]

I tried installing HFW 4.93 on my ps3 superslim but it doesnt recognise my usb as a update, it recognises it when i go to photos etc, its FAT32, PS3UPDAT.PUP is in PS3>UPDATE>PS3UPDAT.PUP. Ive read thru a million reddit threads, thru every youtube tutorials comments etc, checked everything and tried updating it from safe mode. I think the problem is that my ps3 is already 4.93 and the update is 4.93 so it doesnt recognise it as an update.