XYZ Printing Da Vinci Jr (w) / Da Vinci Mini (w) Hacking (Page 27 of 31)

One of these threads by cgrillo already does that.

Yes, that Rhys's latest emulator.

I had time to work on the implementation this week. I'm almost done, but I cant seem to write the password/pack. Everything transmits fine and no error is thrown, yet when I try to authenticate with the password, it fails.
@cgrillo Since you worked on the implentation with the pn522, I wanted to ask if you had any similar experiences and could help

I checked the datasheet to make sure, Im using a ntag213 paper tag. The pages are:
PWD: 0x2B
PACK: 0x2C

I tried writing the password using 'RFID NFC Tool' on my phone and that worked for all pages except the config (pass & pack)

WOW this is perfect! Too bad the front page of this thread isnt being updated anymore, I didnt even know that existed..
---
I tried writing "01020304" to 0x2B and "01020000" to 0x2C.
The last two bytes of the pack page are RFUI and allowed to be 0.

I think I'm just generally confused about how nfc authentication works. Is this correct:
1. When a reader tries to authenticate with a tag, it checks if the sent pwd matches the stored one and if so returns the pack
2. Writing a password to a reader is as simple as using the WRITE command on the specific pages after authentication

Now comes the weird part, I tried using a different app which has a lot more features to write a password. On the tags I tried to write a password to, It refused and said the tag is not one of the supported "classic mifare and ntag21x" << which the ntag213 is a part of. Then I was curious to see if ReelTool would still work and it worked on both tags. How can that be?
Does writing a password only prevent someone from writing the certain pages? If so which and why was ReelTool able to write to the tag anyways?

EDIT: all tags read fine | do you need to set a password using the key/pack algo for the printer to read them?

I figured out what the problem was: I was correctly password protecting the tag, but when 'writing' to the tag again the chip gave me 'STATUS_OK' although I hadnt authenticated, because it saw that what I was writing to the page matched what was already on the page from the last write and 'succeeded' every time. The reason the password protected tag didnt work with the printer was because I forgot to set AUTH0 and PORT, something I found out looking at the ReelTool source code. (AUTH0 is responsible for setting the page from with authentication is required : PORT is responsible for setting what an unauthenticated reader can do with the pages after AUTH0)
Anyways, it works now and is available on github as ANOTHER alternative to impersonating cartridge tags. This implementation uses a MFRC522 (instead of PN522), since its cheaper.

link to repo: https://github.com/Sinitax/DaVinci-NFC-Cloner

Hi, 

I have a minimaker "red" Special edition.

But it seem to be different pages codes lives in.

I made a screenshot of my readings.

PAGE 8: HAS a different code for PLA on the original spool 51 not 50. ORIGINAL code was: 5A514F00

PAGE 0a and 0b: A0860100

PAGE 11: 34000000
PAGE 14: 0ef30000
PAGE 15: 46e13254 
PAGE 16: 869ee2ce 
PAGE 17: 20cd4976

PAGE 28: 000000bd
PAGE 29: 07000008
PAGE 2a:  80050000

How can I reset the spool to 200 meters remain 200 meters and color settings.

I can read the values in xyzware - but get an error code 02a0.
Cartridge not reconized.

Can someone tell me in a simple way - what and where to put in the values.

What about the PLA code 51 ???

I think it must be an little issue Iam dealing with, but how???

/jokerper

Hi,

Thanks for your reply.

But Iam a noobs and learning.

I should be able to manipulate the data on the chip, as far I can read. I think I maybe are stugling with the UID - am I correct?

Please give me some hope...

I have some NFC stickers, can I use this to generate a new chip. Is it here I need to use the www.nfckey.xyz/ to regenerate some data and then fill in the new values. From the tutorials around.

I need to know the workflow.

As I wrote I am a newbie and been reading this thread. But you dont come around this - I think.

You do not discuss how to use the emutag in daily use.

So please tell me how the workflow would be with and emutag, I have been around to for a how to use in daily to switch between new and old spool.

How often should I make a new TAG, UID, SERIALNUMBER.

I dont understand all the stuff about eeprom and hex vs decimal.

I just dont wont to make any mistakes - to fillup my printer with a ton of spools. So I want to reuse/refill those file in the folder.

Is it possible and how would you do it?

I have made my emutag like this and can change the content on the Emutag from the outside.

As I say I need to be sure to do it the right way.

Link to my video on youtube -a must see video - for "Minimaker" - I think

https://www.youtube.com/playlist?list=P … WTuKHEvEpB

I got it now, this is how I use all the hacks with gcode from slic3r and easy filament change. Sorry for disturb you, but maybe someone can use it or scroll down, please.

Check out http://www.soliforum.com/post/142341/#p142341

If you are looking for a good starter printer and you are sure it works then purchase some paper tags and use one of the options to update them and you will be ready to go.