Originally Posted by datunes
I have already followed that guide and it will get the TB CFW and OFW 4.00 working on fast dual boot but when you do step and flash the downgrade.bin file the true blue dongle no longer works the light just stayes red from then on and if you try to run true blue update 2.62 the ps3 just crashes with black screen.
I'm sorry, but I have not done dual boot. But are you sure you are following the steps correctly?
says in the guide he uses the latest true blue cfw.
Maybe search that thread for someone with the same problem. And ask your question in that guide, so someone with experience with fast dual boot and true blue can help you.