64w ago - Following up on their previous announcement of officially supporting PS3 dual-booting, today the E3DIY Team has made available a pin-out schematic and manual for fast dual-booting with their E3 Flasher device with PlayStation 3 CFW (Custom Firmware).

Download: E3 CFW 3.55 Checkoff Downgrade to 3.41 OFW Manual (PDF) / PS3 Fast Dual-Boot E3 Flasher Pin-Out Schematic

To quote from their site, roughly translated: 2012-02-26

1: New mainboard Fast dual boot successfully with E3 FLASHER. Click here (e3-tech.net/images/E3%20FLASHER%20PIC/new-mainboard-fast-dual-boo.jpg) to download manual.

2: E3 flasher Fast dual boot and downgrade OFW4.11 to 3.55 successfully, it's same way as downgrade 3.73 to 3.55. We suggest user upgrade to OFW4.11 and then downgrade to 3.55 from now on. And don't forget backup your OFW4.11 bios well.

3: Downgrade to OFW3.41 from CFW3.55CHECKOFF successfully, tested by E3TEAM. Now you can enjoy any 3.55FW by this way (downgrade to OFW3.41 and then upgrade to 3.55, include JB2CFW3.55, OFW3.55...