# Cartridge not detected. The solution is somewhat worrying **URL:** \ **Category:** Support & Troubleshooting\ **Created:** [April 19, 2019, 12:25pm UTC](https://forum.formlabs.com/t/cartridge-not-detected-the-solution-is-somewhat-worrying/23119 "2019-04-19T12:25:45Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Patronus](https://avatars.discourse-cdn.com/v4/letter/p/b5ac83/32.png) [@Patronus](https://forum.formlabs.com/u/Patronus)\ **Post date:** [April 19, 2019, 12:25pm UTC](https://forum.formlabs.com/t/cartridge-not-detected-the-solution-is-somewhat-worrying/23119/1 "2019-04-19T12:25:46Z")
My Form 2 didn’t recognize a new Black cartridge that I inserted. It was not the machine itself because it had no issues recognizing other cartridges. I cleaned the ID chip on the cartridge with acetone, to no avail. Even roughed the chip up a bit, still no luck. When I compared it with other cartridges I saw that the chip was melted into the plastic just a fraction deeper than the others, the difference was so small I could barely notice it. So with the help of a soldering iron I moved it out by a tiny amount and my problem was solved. [@Formlabs](https://forum.formlabs.com/groups/Formlabs) are the contact pins on our machines so unforgiving that a 1/10mm variation in the position of the ID chip prevents it from making contact?? ---
**Author:** ![Zenica](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.formlabs.com/zenica/32/12099_2.png) [@Zenica](https://forum.formlabs.com/u/Zenica)\ **Post date:** [April 19, 2019, 4:54pm UTC](https://forum.formlabs.com/t/cartridge-not-detected-the-solution-is-somewhat-worrying/23119/2 "2019-04-19T16:54:54Z")
I wonder, could you have applied some solder flux and solder to add a conductive layer to close the gap? I have had this issue as well and in the past, just discarded the resin because I don’t have the time, patience or willingness to manually fill the tank. I wish I had thought of doing as you did, could have used the resin vs not. Next time I’ll try so thanks for the post. It gave me an idea I hadn’t had. ---
**Author:** ![Sculptingman](https://avatars.discourse-cdn.com/v4/letter/s/3be4f8/32.png) [@Sculptingman](https://forum.formlabs.com/u/Sculptingman)\ **Post date:** [April 21, 2019, 7:59pm UTC](https://forum.formlabs.com/t/cartridge-not-detected-the-solution-is-somewhat-worrying/23119/3 "2019-04-21T19:59:53Z")
I got a cartridge that would not read because it had no chip- Formlabs sent me a new cartridge- free of charge. Thing is- the resin in the unreadable cartridge is still good and i will simply transfer it to the good cartridge as that gets used up. I will have to tell the printer to keep printing even though it thinks the cartridge is almost empty- but I find you can usually run a couple liters thru a cartridge before the Form 2 thinks the cartridge has “expired” from age. ---
**Author:** ![lid\_pdx](https://avatars.discourse-cdn.com/v4/letter/l/82dd89/32.png) [@lid\_pdx](https://forum.formlabs.com/u/lid_pdx)\ **Post date:** [April 22, 2019, 3:41am UTC](https://forum.formlabs.com/t/cartridge-not-detected-the-solution-is-somewhat-worrying/23119/5 "2019-04-22T03:41:44Z")
Try soldering a little solder to each of the cartridge pins. I have fixed all of my cartridges by doing this. They are all reading great now. ---
**Author:** ![system](https://us1.discourse-cdn.com/flex025/uploads/formlabs/original/3X/5/b/5bc2bdf993ff27c2e0eecab5010b25626fbb327a.png) [@system](https://forum.formlabs.com/u/system)\ **Post date:** [May 6, 2019, 3:42am UTC](https://forum.formlabs.com/t/cartridge-not-detected-the-solution-is-somewhat-worrying/23119/6 "2019-05-06T03:42:02Z")
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