I have a Husqvarna Emma sewing machine. The needle broke and a piece is under the bobbin holder. How can I get under the bobbin holder?

did you find the tip of the needle? Also you may have a nick in the metal where the needle hit and broke.It can catch on other parts and need to be sanded or replaced.One time I had this issue and I found the tiny broken tip under my bobbin case.

it is very possible, if you try a new needle--one that is correct for the fabric being sewed and inserted correctly into the needle holder
and the machine is still not sewing
make sure the bobbin is turned the right way in the bobbin holder
then it would be a good idea to have the machine checked

sometimes when you break a needle it can cause the machine to
jump time, the machine would have to be taken to a sewing machine
shop to be checked by the technican

check to make sure that the needle was put into the needle holder correctly
all the way up into the needle holder--flat side of the needle to the back side of the machine
if the machine still doesn't up the bobbin thread then
it's possible that when the needle broke that it caused the machine to go out of time which means it has to be retime at a sewing machine shop

You need to remove the gray cover next to the needle plate and bobbin cover. First remove the bobbin cover, needle plate, hook cover, and bobbin case. Next, take a small straight slot screw driver, about 3mm wide, and insert it under the gray cover that is just left of the hook area. Pry up the cover just slightly, and at the same time slide the cover towards you. It should just pop off. If you having cutting problems, you should the cutter blade, the cutter holder (black plastic piece), the fetcher (gray metal arm), and the thread bread (copper piece with the little velcro piece at the end). Viking has upgraded a couple of these pieces from the original versions, so you should have better cutting results. And of course clean out this area while your at it.

here are something you might check
upper thread breaks
1.top tension to tight
2.thread to thick or to fine for needle
3.needle not inserted correctly
4.thread caught on something-spool pin, tension area
5.needle damaged
6.needle thread is not threaded properly

Needle breaks
wrong size needle for fabric
wrong foot is attached
needle clamp screw is loose

also check for lint & pieces of broke needle under the needle plate
also the bobbin case area -take the bobbin & case out & check for pieces of broke needle

here is a tip about needle & thread
Cut 6-8 inch piece of thread of the spool you are going to use for your project
Take the needle you are going to use for the project
& insert the thread thru the eye of the needle
& lift one end of the thread to a 45 degree angle
& if the needle is the right size for the thread it will slide down the thread
But if the needle hangs on the thread you need one size larger needle for the thread

Have you removed the broken pieces? The bobbin holder snaps out with 2 side holders to remove broken needle pieces. I don't think that the timing can get off by a broken needle. My first original bobbin holder got damaged which was made of hard plastic, from embroidering, and I ordered a stainless steel model which is available from a Bernina dealer, and all works very well for the last 2 years, there was never any problem.

If the bobbin case/holder is trying to lift up and the thread is staying partly around it, your bobbin case may have turned part way.
Remove the needle plate and the bobbin case. The outer edges of the bobbin case should be very smooth. I suspect you may see a needle hole in the flat area that was under the foot. If so, you will probably wish to take it to your dealer and show them. They may smooth it or recommend replacing it. When the bobbin case is placed back into the hook cup that it sets in, the retainer at the 11 o'clock position on it should only allow the case to lift up about 0.8 to 1mm at the most. If it will lift up more than this, press down firmly on the retainer and move it closer to the bobbin case. You must have enough room for the thread to pass between the retainer and the bobbin case, but too much clearance will allow the bobbin case to turn in the machine and it will be damaged by the needle.

you may find that there is a piece of needle end in the bobbin case or holder. and maybe even try the canned air and spray it may help to clean it thoroughly. just take out the bobbin and use a q tip with a bit of oil on it and swab the holder and you could find the piece of needle

when this happens to me (the needle breaking) I make it a thing to do and that is to use a qtip with a bit of oil and clean the bobbin holder and then use canned air and blow out the lint from area and this may help you. You may have a tiny tiny piece of needle left in the holder and this will play havoc with any kind of sewing machine. I have suffered through it many times before I made this a practice when needle breaks