430 will not recognize wembroidery unit.

That's usually what will happen when a thread sensor gets stuck or goes bad (or the machine isn't threaded properly). You can begin by locating the check spring; sensors are usually the second function of the check spring. When you find it, thread the machine and look to see that it wiggles. If not, this is most likely your problem.

Clink the link below for manual..

Software can be downloaded from the manufacturers web site only if the models are compatible. Their web site will let you know.

I assume you mean a Bernina 830. If you have removed the slide-on table, I have two possible solutions. I've seen this with a couple of Viking embroidery attachment units. (I am also assuming it's not a hoop issue.)

You could have corrosion on the pins that send the signals between the embroidery attachment and the sewing machine. Remove the embroidery attachment and turn off the sewing machine. Unplug the sewing machine. Spray the pins with an electronic contact cleaner; one example is here: http://www.homedepot.com/p/CRC-QD-11-oz-Contact-Cleaner-02130-6/202262505 . Push the embroidery attachment into the sewing machine by lifting up the far side and then sliding it into the port. Remove the embroidery attachment. Repeat this a few times. (The friction of the insertion and removal will remove any dirt or corrosion.) Plug in the sewing machine and turn it on. Try connecting the embroidery attachment. If it works, remember to clean the contacts the next time the embroidery attachment isn't recognized.

Once I helped someone with two sewing/embroidery machines with an unrecognized embroidery attachment. In that case, the person swapped which embroidery unit went with which machine. The contacts were not the same and didn't mate. Once the correct machine and embroidery unit were paired, the embroidery unit was recognized instantly.

I hope this helps. If it doesn't, you may need to talk to your Bernina repair technician at your local shop.

Cindy Wells

Yes they should unless the tab on the middle of the embroidery unit is broken.

Hai, How many heads in your embroidery machine? As far as you should have brother embroidery machine's maintain and handling is smooth and carefully. Please check the timings. Otherwise ask your machine mechanic.

Hm, sounds like the machine is not recognizing the dongle or the embroidery cord. You may need to have Bernina test it for you.

There isn't a Bernina 435. If you are referring to the 430 than the gold latch bobbin case will not work in that machine. If you are talking about the Bernina 450 the gold latch will work in that machine, with or without the embroidery module.

Anytime there is a communication issue between machine and module attach the module to a different machine and check it. Possibly at a dealership. This will tell you whether its the machine or module. If its the machine then the soldering points on the embroidery module plug to the A-print (on the side of the machine) circuitboard need to be checked. Then most likely replace the A-print circuitboard.
There are other tests that need to be done in the service program that will help pinpoint and troubleshoot issues with the embroidery unit. Such sensors or stepping motors, etc. Should be left to a tech.
Hope I helped.

I figured out the solution for this issue. It all has to do with the threading. And I mean literally follow the instructions word for word. Most importantly is the Bobbin thread. make sure to thread the bobbin through the case eyelet.