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bvanheu / stratatools

Stratasys EEPROM tool
BSD 3-Clause "New" or "Revised" License
88 stars 40 forks source link

No EEPROM data #43

Open ssurya300 opened 7 years ago

ssurya300 commented 7 years ago

Have been using this tool for fortus 250mc and dimension series for quite some time .

Now, I was trying to refill a 450mc Chip, I was able to read and the id is "b3-xxxxxxx" usually it will be "23-xxxxxx" and it doesn't have eeprom in it it has "rw" , when i tried to read rw it is showing " ff ... " only. so i was not able to get the eeprom data copied for editing the material percentage Is there a way refill the chip?

I am using Rasp pi 3 for refilling the chip

HaveBlueXST commented 7 years ago

450mc chips use SHA-1 protection, so you will need to know the HMAC secret in order to write back to it with a RasPi.

ssurya300 commented 7 years ago

Is there any possibility that the fortus 250cc Chip working with 450mc ? Any Ideas ?

Spider83 commented 5 years ago

Is there any possibility that the fortus 250cc Chip working with 450mc ? Any Ideas ?

maybe if you have Fortus 250 try to swap eeprom reader with 450 if they have same connection. but the main problem is SHA-1 protection.

H2Powerman commented 5 years ago

With an fpga you could brute force this similair to bitcoin hashing and get the encryption key pretty quick.

On Mon, Dec 3, 2018, 9:54 PM Spider83 <notifications@github.com wrote:

Is there any possibility that the fortus 250cc Chip working with 450mc ? Any Ideas ?

maybe if you have Fortus 250 tri to swap eeprom reader with 450 if they have same connection. but the main problem is SHA-1 protection.

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