PS3HEN Downgrade from 4.87 to 3.55?

[Rage4Dayz]

Hello, I'm new to modding on the ps3. I had my Fat PS3 since it came out and I had a look and it says that the minimum downgrade is 2.16, I'm on HEN 4.87 is it possible to downgrade to 3.55? Thanks

 

[aldostools]

Hello, I'm new to modding on the ps3. I had my Fat PS3 since it came out and I had a look and it says that the minimum downgrade is 2.16, I'm on HEN 4.87 is it possible to downgrade to 3.55? Thanks

It is not possible to downgrade directly from HEN.

First you need to install CFW 4.87 using bgtoolset, then use the latest Rebug Toolbox to enable QA flag.
After QA flag is enabled, you can install any version supported by your system (lower or higher).

Here is a video tutorial