A week ago, we posted here about a new clone with multiple functions, called P3Go GT Break, on that very thread, PS3HaX member moretex has written a very good review on the device, here is what he says:
I got my P3Go some days ago and in arrived in a nice package. It have a black rubber skin that’s looking real good and the size is 80 x 30 mm. The switch also looks good and does what it should (for the PS3 slim).
The P3Go is easy to insert and remove because of its size and rubber skin and it look very nice when inserted, lighting up with a blue glow, a good match for the PS3.
It was loaded with the dual firmware, Hermes-v4B as default and Kakaroto-PL3 if one inserted a TF-card/microSD in the slot at the side. This card slot is also used for updates, just put the update.bin on it and insert the P3Go in a usb port for power. After some seconds when both blue and red leds are turn on the update is finished and the update.bin file is deleted.
When inserted in the PS3 usb port it blinks blue and red with the two leds on the front short side while starting up the PS3. The leds turn off when the startup was successful. I have not had any problem yet with it and it work well just like the teensy2, olimex and other boards I have (it just looks better and is much more powerful).
The flash is preloaded with some packages:
It’s also loaded with 174 covers (43MB) in the PS3_GAME/covers map.
The 128MB flash got 90MB visible on one FAT partition and the rest is for the firmware. This flash is also visible from the PS3 XMB and from the backup managers. The external card is also visible from the XMB when inserted but not from the managers but this is, I suppose, a problem for the backup managers.
The part is easy to open so you should not worry too much about doing it (just be careful with ESD).
The only thing I miss regarding hardware is boot mode buttons. The chip can boot from three sources; Nand flash, SD Card and USB. The default now is the Nand flash. On the pcb picture you can see four large pads and perhaps this is for boot mode. Ingenic have a usb boot tool and also toolchains one perhaps could use in the future.
Pin 33, PE25 and pin 63, ANIN1 on the chip should enable USB boot during power on/reset.
RD4755_Cetus Development Board schematics have some more information about the pins on the chip (rd4755_cetus_v1.3.pdf) and you can read more in the Jz4755_ds.pdf datasheet from Ingenic.
Missing now is a way to add custom payloads and perhaps also a possibility to create your own boot images. Apparently (as kozer noted) the people at GAMEBOX are working on this and also a SDK to use and this would make this P3Go a very nice gadget. Will be fun to play with it and reload my memory about the MIPS instruction set.