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brandonlw / Psychson

Phison 2251-03 (2303) Custom Firmware & Existing Firmware Patches (BadUSB)
MIT License
4.12k stars 1.28k forks source link

Id like to help research #174

Open zeroKilo opened 7 years ago

zeroKilo commented 7 years ago

hi, I started by making your awesome PhisonDevice class into a GUI tool, so I can better debug whats happening. http://i.imgur.com/hPu1uXG.png But unfortunately not all commands work on my chip (2251-68-5) and I cant find suitable firmware, so Id rather like to research the ISP process itself more, especially the exchanged bytes, like, have you any idea what the header and body byte combo do, or is that just from traces? is there any documentation on the exchange other than the code itself? Is there a way I can contribute to this project with researching my chip variant or is that futile? I could help to document the protocol in the wiki if that helps. Thanks for this sw greetz WV

3ntr0phy commented 7 years ago

Personally I had the same idea, I would like to update the project making it compatible with more modern firmware. I'd like to know the methodology used in order to achieve this and the tools used, so I have an idea about the overall procedure. I'll wait some news from the owner of the repo.

3ntr0phy commented 7 years ago

Personally I had the same idea, I would like to update the project making it compatible with more modern firmware. I'd like to know the methodology used in order to achieve this and the tools used, so I have an idea about the overall procedure. I'll wait some news from the owner of the repo.

zeroKilo commented 7 years ago

well I can already flash newer firmwares and all, but I havent got to get my drive working again, but I learned a ton on the way. if you wanna know what uptool and mpall does, get wireshark with usbpcap and look for SCSI commands, followed by BULK in/out packets, and thats whats passed along. my tool even has a function now to send any byte sequence for testing, the "protocol" is simply "send some bytes, expect none/some bytes" and the class from this project already has a SendCommand function ready to use :)

well, if you want we can chat or so, but I dunno how to contact you

greetz

zeroKilo commented 7 years ago

if you are still interested, I started to collect my research in a new forum here: http://phisonresearch.freeforums.net

greetz