I have a brother lx 2500 sewing machine and when it jamed i opened up the bobbin area and cleaned everything but now having problems getting the casing back in

Have you cleaned and oiled you machine? I've found that if I clean everything; bobbin, bobbin chase and around the bobbin pin, and then oil the oil point (especially the bobbin point) then I have fewer problems.

Since it is a computer,maybe try unplugging for about a minute and plug back in and turn the machine on. See if the code is cleared. hope this helps

rethread the machine top & bobbin
change the needle
make sure the bobbin is not warped
clean under the needle plate & in the bobbin area for loose thread or lint

have you tried changing the needle?
have you tried turning the bobbin the opposite way?

Most likely your machine is not threaded right, read your manual closely and double check yourself. Rethread your machine, no mixed thread use same weight, color does not matter but weight does. With your presser foot down, your top thread should be had to pull, with it up it should pull freely. Make sure your bobbin is wound evenly, and on a fresh bobbin. Then put in a new needle. Now, if the machine is still acting up, it may be your timing. You can call Brother at 1-877-276-8437 customer support. if you need a manual, go to www.brother-usa.com. I am answering this for free just to try to help you. Good luck

Driver?

Refer to the manual for threading and bobbin winding.

Make sure the bobbin is properly installed.

Graphics are always good to have, but sometimes important steps can be missed. Be sure to read the instructions.

Open the manual and lay it next to the machine and follow every step of every feature. No matter how experienced, it is important to learn the ins and outs of every machine you intend to use.

If the problem continues, return the machine.

Turn off the power and remove the needle and presser foot.

Remove the needle plate, bobbin and bobbin case.

Clean the shuttle and surrounding area.

Replace everything.

Make sure the flat side of the needle faces to the back of the machine.

Raise the presser foot and re-thread the machine.

Turn off the power supply and open the needle plate.

Remove the bobbin and bobbin case.

Clean the shuttle and surrounding area from any lint or thread that may have accumulated during use.

If the problem continues, the machine will need to be serviced by a Brother dealer.

If the bobbin unit has moved out of place, it could be something more than timing and should an issue that a professional should handle.