I have an Amtel (AT90USB162) and I want to downgrade my PS3.
I flash my Amtel and after that I follow the steps which has been told by sites.
I copy my PS3UPDAT.PUP and Lv2diag.self(first one)into my USB and turn on my ps3 .
in 3 minutes my USB and my hard starts working after that it does not work and my green led begins flashing but my PS3 does not turn off.
I waited for more than 2 hours but it did not turn off.