No EEPROM data

Question

No EEPROM data

Opened this issue 8 years ago · 4 comments

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

Answer 1 · 2017-03-05T02:18:57.000Z

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.

Answer 2 · 2017-03-06T08:53:48.000Z

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

Answer 3 · 2018-12-04T05:54:16.000Z

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.

Answer 4 · 2018-12-04T06:02:29.000Z

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

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On Mon, Dec 3, 2018, 9:54 PM Spider83 ***@***.*** 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. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#43 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/APmjA624Rnfyvavzlev8LhEuJpb0x7W_ks5u1g4JgaJpZM4MTBJ7> .