Originally Posted by steve30x
Is there a downgrade dongle? The PS3 slim I bought was on 3.65 OFW so I upgraded to 3.73 , but I want to downgrade to 3.55 so that I can install 3.55CFW.
Your console won't be able to downgrade if it came new with 3.65. The console can only downgrade as far as the firmware it came with stock.