Brother 882-T51 Operation Manual page 182

The motor has locked up due to tangled
thread or for other reasons related to
thread delivery.
If the thread is entangled in the bobbin
case, clean the race, and then oil it.
(Refer to page 166 and 169.)
You tried to select a pattern after the
USB media in which the pattern is saved
has been changed.
An unusable embroidery card is
inserted.
Remove the embroidery card.
The thread color sorting function cannot
be used for the overlapped patterns. Edit
the pattern to solve the overlapping
issue.
180
The USB media is write-protected.
Cancel the write protection.
You tried to save a copyright-protected
pattern to USB media or a computer.
According to copyright laws, patterns
that are illegal to reproduce or edit
cannot be saved to USB media or a
computer. Save the pattern in the
machine's memory.
The file format is incompatible with this
machine.
Check the list of compatible file formats.
(Refer to page 67.)
This message is displayed when the
selected stitch is not available for the
specific function.
The USB media is write-protected.
Touch , and cancel the write
protection.
You tried to use an editing function
while the pattern is not completely
within the red outline.
Move the pattern so it is completely
within the outline.
The file size exceeds the data capacity of
the machine.
Confirm the file size and format. (Refer
to page 113, 114.)
The pattern has too many stitches and
cannot be used.
Data with stitches that exceed
specifications (500,000 stitches) cannot
be displayed. Use data design software
to reduce the number of stitches.