After the push and pull on the actual feasibility of the downgrade to 6.35 and the statements by the developer Davee said that the upcoming release the special tool, finally Hellcat , author of the famous Recovery Flasher to get back to live with a little taste of the version 1.65 . In the video he made Recovery Flasher shows how the new (still in testing) can easily downgrade starting from 6:35 PRO , ie, the exploits of HEN created for the demo of Everybody's Sukkiry, installing the FW 6.20.
At present, the function has been tested only on downgrade FAT PSP Slim and not TA-088v3. Then we are waiting for new developments.