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Claris Smart refill cartridges

Maybe there's a way

Gast_Peter   

September 17, 2019 05:36 am

Unregistered

Did anyone try this trick with the Z6 or Z8?

It seems that the inlet for the water is changed with a plastic ring, so you cant do it like in the video...

Gast_Francis

October 20, 2019 10:17 pm

Unregistered

Indeed you can refill the cartridge and disable the chip detection, but in this case the machine will regularly request tartar removal "entkalkung", and if you don't do it you will loose the warranty. Level of cartridge wearing is unknown as well.
And it's so funny to see the leds blinking on my chip simulator while the machine is thinking a genuine, expensive cartridge is installed :-)

Gast_marco

December 31, 2019 03:00 pm

Unregistered

Wow, so finally you hacked it!
Can you give some more details on how you use it?
How did you get the emulation details?
Its the chameleon mini revE rebooted?
How did you install it on the machine?
Lots of questions...
Best regards
Marco

Gast_Francis

January 19, 2020 11:36 pm

Unregistered

Hi Marco,
indeed I hacked it. Actually I sniffed the exchanges between the machine and the filter using a SDR (software defined radio) receiver and wired antenna. Then I bought a Chamelon Mini and implemented the 15693 protocol and simulated a EM4237 chip. I bought half a dozen of new filters and copied the content into the flash (Jura E6 remembers the last couple of filters serial numbers). I then sold the still new cartridges for an attractive price to a friend :-)
I used the coil antenna of an old Jura filter (removing it from the filter and also removing the chip) and mounted it at the bottom of the water tank, just facing the Jura reader at the bottom. The Chamelon is fixed on the water tank using 3M double face tape.
Of course it took me a while but it's working well now and it cost we 35c€ to fill a cartridge.
If you leave me a mail I can send you some pictures.

Gast_Chrischi

January 28, 2020 09:49 pm

Unregistered

QUOTE (basti43 @ Tuesday, 13 August 2019, 21:16 hrs)
I have solved the problem without great technical effort
: Existing used filter cartridge cleanly cut open at the top, there is a 30 mm opening, pour out used granulate cleanly wash out, fill in new granulate, I close the hole at the top with a correspondingly large plastic plug, which sits tightly on the middle rod of the filter. Problem solved. Now comes the clou, the connection water tank to the machine must be neutralized. I achieved this by using an aluminium strip with a hole for the water passage. Now the machine no longer displays the filter change automatically, i.e. monitor it manually, but descaling and the cleaning cycle is still displayed.
Much joy with the saved filter cartridges.
The Knobler on duty



Could you explain that in more detail, please?

Sorin

June 28, 2020 08:10 pm

Unregistered

QUOTE (Windi @ Saturday, 28 October 2017, 17:06 hrs)
The Jura company has installed an RFID chip in the Claris smart cartridges so that the machine automatically recognizes a new filter cartridge.
According to information from Jura, of course only so that you don't accidentally insert a cartridge that has already been used.
In reality, of course, the intention is to prevent refilling and sell your own expensive cartridges.
The refilling is possible, if you deactivate the filter recognition on the machine. But then you have to take care of the change intervals yourself because then there is no message from the machine anymore.

There must be a possibility to refill these cartridges and sell them to the machine as "new".

Now I ask myself the following question.
How or where does the machine remember if the filter has been used before?
Does it write this on the RFID chip or does it remember it internally?
If it writes it on the RFID chip it would be stupid. Then a hack would be quite complex to impossible, because you can lock the RFID chips permanently against changes.

But if she remembers it internally I see several possibilities.
The memory of the already used cartridges cannot be infinitely large.
At some point she will "forget" the oldest cartridge, so you can use it again.
I have now tried it with 6 old cartridges. But she still knew them all.

So I would like to try the following.
Just use a used cartridge from another machine.
She can't know them yet.
If the machine accepts this cartridge, it's clear that it stores it internally.
This cartridge can then be filled.
If that works, you can introduce a system of exchanging Claris Smart cartridges.
User A sends an empty cartridge to user B and vice versa.
When the cartridge is empty again, user A sends it to user C and so on.
Now you would first have to find out if the machine accepts other used cartridges at all. If this works, you can think about building an exchange system.

Who of you has an old Claris Smart cartridge and would send it to me (against reimbursement of shipping costs) so I can test it.



























I can do that

snowball

June 30, 2020 07:39 pm

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Exchanging the cartridges with different Jura machines does not help. Save your money for sending them back and forth. The consumption is written on the chip and cannot be deleted or reset. And when the filter is used up, the blocks are blocked, which can't be undone.

Gast_Francis

August 23, 2020 09:54 pm

Unregistered

Snowball is fully right, the memory blocks in the cartridge's chip are "locked" as they are written and can't be reset. So a used cartridge can't be reset or reused on another machine. Actually the E8 machine itself remembers no more than a couple of cartridges.
See my previous posts here: I hacked the machine by simulating the chip in the filter (Cameleon-mini rebooted simulating a EM4237) so once "used" I can reset the memory blocks with the content of a new filter (as the machine remembers a couple of chips you need to alternatively program the simulator with two or more different contents).
I'm doing that for more than two years now, it costs me about 0.35€ to refill the filter.
You can leave me an email if you want more details.

antoinev

November 19, 2020 02:13 pm

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Dear Francis,

Would love to see how you achieved that. I can even offer you compensation if you teach me your knowledge (I am getting crazy with those filters!) smile.gif

Please let me know how I can reach you ?

Best

antoinev

November 19, 2020 02:17 pm

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QUOTE (Gast_Francis @ August 23, 2020 08:54 pm)
Snowball is fully right, the memory blocks in the cartridge's chip are "locked" as they are written and can't be reset. So a used cartridge can't be reset or reused on another machine. Actually the E8 machine itself remembers no more than a couple of cartridges.
See my previous posts here: I hacked the machine by simulating the chip in the filter (Cameleon-mini rebooted simulating a EM4237) so once "used" I can reset the memory blocks with the content of a new filter (as the machine remembers a couple of chips you need to alternatively program the simulator with two or more different contents).
I'm doing that for more than two years now, it costs me about 0.35€ to refill the filter.
You can leave me an email if you want more details.

You can contact me on jeromcoulet [at] gmail [dot] com

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