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s00

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Last Activity: 08-15-2022, 01:26 PM

Joined: 08-01-2022

Location: london

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s00 replied to Pantum P2502W Toner Reset Chip help

in Troubleshooting Printers, Copiers, Scanners and other Imaging & Printing Devices

08-10-2022, 02:05 PM
Re: Pantum P2502W Toner Reset Chip help

ok, thanks useful to know.
I had a look and found a debug UART on the printer and can see it is using u-boot as the bootloader and running VxWorks as the RTOS. Unfortunately all the standard u-boot commands don't work so I couldn't dump the memory/flash that way. No sign of JTAG either ...

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s00 replied to New Members - please post your introductions here

in Announcements & Related News

08-01-2022, 06:56 AM
Re: New Members - please post your introductions here

Hey,

I am a hardware hacker from the UK. Some really interesting content, so looking forward to getting involved.

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s00 replied to Pantum P2502W Toner Reset Chip help

in Troubleshooting Printers, Copiers, Scanners and other Imaging & Printing Devices

08-01-2022, 06:53 AM
Re: Pantum P2502W Toner Reset Chip help

I would be interested in more info as well. Looking to do the same on a Samsung M2070W which I believe is very similar internals.
I dumped the eeprom however it looks encrypted so I guess the next step is to reverse engineer the firmware to find the key/algo.
If you could share details of how you did this for the Pantum it might speed up the process. Thanks

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