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Re: DaVinci Junior cartridge reset

January 9, 2017, 1:37 pm
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yogibehr wrote:
vienisas wrote:
yogibehr wrote:

I think I accidently changed my serial number on the nfc chip. Is there anyway to reset it? my serial number from the roll is
PLACON031P3YPD676230
I changed 0EH page 14 it reads now 0eh 56 18 00 00
Thanks Chris My mini doesn't display the serial number anymore thanks Chris

Change page 14 (0Eh) to 36 32 33 30 I will bee yours original  serial number

Ok now it shows as a good chip. But it shows 1082/0 meters
the chip still had 16/100 meters when i changed it to begin with. Thanks for the help

Ok i've got 65/100 showing, it was a 100 meter roll to begin with What do I set 0a and 0b at to get this thanks Chris

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Re: DaVinci Junior cartridge reset

January 9, 2017, 2:03 pm
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yogibehr wrote:

Ok i've got 65/100 showing, it was a 100 meter roll to begin with What do I set 0a and 0b at to get this thanks Chris

Page            300m     200m     100m
0xa,0xb(10,11)  E0930400 400D0300 A0860100 (total length)
0x14(20)        E0930400 400D0300 A0860100 (remaining length)
0x15(21)        A8813654 081F3154 E8943354 ("checksum")
0x16(22)        F03FEECE 50B1E0CE 300AE1CE ("checksum")
0x17(23)        F26E4D76 52E74F76 B2794876 ("checksum")

Page 0x15 to 0x17 isn't really a checksum, it's a coded value based on remaining length. With the current firmwares it seems we do not need to set those correctly as the printer will calculate the correct values and put them there for us but it is possible that future firmwares will not be as forgiving.

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Re: DaVinci Junior cartridge reset

January 9, 2017, 2:22 pm
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kallt_kaffe wrote:
yogibehr wrote:

Ok i've got 65/100 showing, it was a 100 meter roll to begin with What do I set 0a and 0b at to get this thanks Chris

Page            300m     200m     100m
0xa,0xb(10,11)  E0930400 400D0300 A0860100 (total length)
0x14(20)        E0930400 400D0300 A0860100 (remaining length)
0x15(21)        A8813654 081F3154 E8943354 ("checksum")
0x16(22)        F03FEECE 50B1E0CE 300AE1CE ("checksum")
0x17(23)        F26E4D76 52E74F76 B2794876 ("checksum")

Page 0x15 to 0x17 isn't really a checksum, it's a coded value based on remaining length. With the current firmwares it seems we do not need to set those correctly as the printer will calculate the correct values and put them there for us but it is possible that future firmwares will not be as forgiving.

Now it shows 100/100 meters. But the mini maker light turns red when I try to print. Guess I'm out of luck. Thanks for the help Chris

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Re: DaVinci Junior cartridge reset

January 9, 2017, 2:25 pm
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yogibehr wrote:

Now it shows 100/100 meters. But the mini maker light turns red when I try to print. Guess I'm out of luck. Thanks for the help Chris


you can still tag swap with someone and it will work.

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Re: DaVinci Junior cartridge reset

January 9, 2017, 2:26 pm
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yogibehr wrote:

Now it shows 100/100 meters. But the mini maker light turns red when I try to print. Guess I'm out of luck. Thanks for the help Chris

You cannot reuse the same chip in the Mini. It remembers the UID of the chip. What you can do is swap the chip and get a chip that has not previously been used in your Mini and reset it _before_ you let the Mini see it for the first time.

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Re: DaVinci Junior cartridge reset

January 10, 2017, 11:43 am
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Hi, it is possible to emulate tag with another uid ?
(My phone have a nfc emulator)

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Re: DaVinci Junior cartridge reset

January 10, 2017, 8:38 pm
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Alrighty guys, im on board for this project, i have a spool of filament that has only 4 meters left on it, so i am willing to try to reset it, or lock it or whatever it takes. Im a little lost in the whole thing, someone just tell me what to try to the chip and ill see what happens. Hope i can help.

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Re: DaVinci Junior cartridge reset

January 11, 2017, 4:41 am
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GeneralAa_ron wrote:

Alrighty guys, im on board for this project, i have a spool of filament that has only 4 meters left on it, so i am willing to try to reset it, or lock it or whatever it takes. Im a little lost in the whole thing, someone just tell me what to try to the chip and ill see what happens. Hope i can help.

I did lock my earlier tags... as a result I am not able to change the value of page 09 and when I reset the tags I get the unidentified spool error message in my Jr.
You can request the password for your tag and reset it. Will work for you if you did not update your printer to the latest firmware.

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Re: DaVinci Junior cartridge reset

January 11, 2017, 4:44 am
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antoinebouquet81 wrote:

Hi, it is possible to emulate tag with another uid ?
(My phone have a nfc emulator)

Should be possible if you truly have that kind of emulator app on your phone. What app is this ?

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Re: DaVinci Junior cartridge reset

January 11, 2017, 5:22 am
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zerzoumia wrote:
antoinebouquet81 wrote:

Hi, it is possible to emulate tag with another uid ?
(My phone have a nfc emulator)

Should be possible if you truly have that kind of emulator app on your phone. What app is this ?

I doubt if it is a full emulator and even if it is, the first byte of the UID will probably be set to something other than 04 as I believe this denotes something like Chip supplier..

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Re: DaVinci Junior cartridge reset

January 11, 2017, 12:21 pm
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Re: DaVinci Junior cartridge reset

January 11, 2017, 1:29 pm
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Hi, I have the same phone you need to change page 0 and know the problem: -S
I'm blocked the same way you

antoinebouquet81 wrote:

It's a galaxy S6 phone but i don't know how to emulate
(i know i can because i have already try with an app
https://play.google.com/store/apps/deta … &hl=fr

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Re: DaVinci Junior cartridge reset

January 12, 2017, 6:07 am
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For anyone who has an EMUTAG and a Mini could you do me a favour?

Basically, I want you to allow the length remaining to run down to 0m.

If the printer  then tries to lock the card somehow, we will be able to see what it does - by virtue that it can't screw up the emutag.
It may set some dynamiclock bytes (high pages) - or even screw around with the password and pack!
This will be shown by the fact that the emutag will then show up as not being recognised..
You can then dump the contents of the card and we can see what has been done to the it. 
It may help us resurrect locked cards and enable them to be swapped...

It's not a 2 min job as you have to actually print to decrement the remaining length and also the batteries may not last that long .. as soon as you remove the batteries you re-set the emutag, so it will mean reading the values and re-writing them after.

OR

Can anyone with a card with say 10m or less left dump out their card detaisl for us to be able to create an almost empty card smile

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Re: DaVinci Junior cartridge reset

January 12, 2017, 9:15 am
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almost empty card (8m) :
PACK : C6 7D
Successfully authenticated with key :
bleue Key is masked behind page =>0x2B
OC 42 60 69
140/200m
Page : Data
00:0467618A // UID
01:AAED4480 // UID
02:83480000 // xx480000 (fin UID)
03:E1101200 // standard NTAG213
04:0103A00C // standard NTAG213
05:340300FE // standard NTAG213
06:00000000
07:00000000
08:5A505500 => 55=CLEAR BLUE (U du serial)
09:00363243 00 62C du serial
0A:400D0300 longueurtotale (200m)
0B:400D0300 idem
0C:D2002D00
0D:54484742 THGB
0E:30333535 0355
0F:00000000
10:00000000
11:34000000
12:00000000
13:00000000
14:B1230200 longueur restante (140.209)    E0070200    50AC0100
15:F9313054                 A8153054    18BE3354
16:23AFE1CE                 F08BE1CE    40D0E1CE
17:C59E4876                 F2FA4876    62064876
18:00000000
19:00000000
1A:00000000
1B:00000000
1C:00000000
1D:00000000
1E:00000000
1F:00000000
20:00000000
21:00000000
22:00000000
23:00000000
24:00000000
25:00000000
26:00000000
27:00000000
28:000000BD // standard NTAG213
29:07000008 // 040000FF
2A:85050000 // 00050000
2B:00000000

Suite longueur :
14 : B8AB0100
15 : F0B93354
16 : 28D7E1CE
17 : CA064876

14 : 64610100
15 : 2c733354
16 : 7c6de1ce
17 : 76534876

14 : 6C220000    // 8m
15 : 24303254
16 : 64AEE3CE
17 : 7E9C4A76

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Re: DaVinci Junior cartridge reset

January 12, 2017, 9:17 am
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cgrillo wrote:

For anyone who has an EMUTAG and a Mini could you do me a favour?

I will do this when I receive my emutag : it is on the way wink

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Re: DaVinci Junior cartridge reset

January 12, 2017, 10:02 am
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silentman wrote:
cgrillo wrote:

For anyone who has an EMUTAG and a Mini could you do me a favour?

I will do this when I receive my emutag : it is on the way wink


Thanks for the data, have 3 sets now smile

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Re: DaVinci Junior cartridge reset

January 14, 2017, 4:50 pm
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Ok, so I thought I had fried my EMU tag today, but after re-flashing the firmware it is working fine now. Since all pages were set to 0's and someone had requested a password. I thought I would read the whole tag after I posted the password. The attached shows what pages were updated by the JR. I entered no data except the UID and the 1 in page 44 so I can sniff passwords.


http://soliforum.com/i/?VIWk8DL.jpg

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Re: DaVinci Junior cartridge reset

January 15, 2017, 4:39 am
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1 meter to empty TAG.

00 - 042A70D6
01 - 923E4D80
02 - 61480000
03 - E1101200
04 - 0103A00C
05 - 340300FE
06 & 07 - 0...
08 - 5A504B00
09 - 00363739
0A, 0B - 400D0300
0C - D2002D00
0D - 5448504D
0E - 31383638
0F, 10 - 0...
11 - 34000000
12, 13 - 0...
14 - E4040000
15 - AC163254
16 - FC88E3CE
17 - F6FF4A76
18, 19, 1A, 1B, 1C, 1D, 1E, 1F, 20, 21, 22, 23, 24, 25, 26, 27 - 0...
28 - 000000BD
29 - 07000008
2A - 80050000

Zeroed Pages:
06, 07, 0F, 10, 12, 13, 18, 19, 1A, 1B, 1C, 1D, 1E, 1F, 20, 21, 22, 23, 24, 25, 26, 27

PASS: D4FEE1F8
PACK: 227B

Regards!.

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Re: DaVinci Junior cartridge reset

January 15, 2017, 12:43 pm
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Bozotclown1970 wrote:

Well, once I entered the correct code, which was 00 04 93 E0.  I was able to see a spool of 300m. Now what is interesting about this is. That was my original spool that was a 100m spool not 200m.


http://soliforum.com/i/?2yd635W.jpg



did your 300m work and have you got more out of it yet

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Re: DaVinci Junior cartridge reset

January 15, 2017, 12:48 pm
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r5-live-v6 wrote:
Bozotclown1970 wrote:

Well, once I entered the correct code, which was 00 04 93 E0.  I was able to see a spool of 300m. Now what is interesting about this is. That was my original spool that was a 100m spool not 200m.



did your 300m work and have you got more out of it yet


That was an old post, yes it work, and I did figure out how to reset the capacity also.

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